#
d4c75a1b |
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15-Jan-2024 |
Dave Chinner <dchinner@redhat.com> |
xfs: convert remaining kmem_free() to kfree() The remaining callers of kmem_free() are freeing heap memory, so we can convert them directly to kfree() and get rid of kmem_free() altogether. This conversion was done with: $ for f in `git grep -l kmem_free fs/xfs`; do > sed -i s/kmem_free/kfree/ $f > done $ Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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#
10634530 |
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15-Jan-2024 |
Dave Chinner <dchinner@redhat.com> |
xfs: convert kmem_zalloc() to kzalloc() There's no reason to keep the kmem_zalloc() around anymore, it's just a thin wrapper around kmalloc(), so lets get rid of it. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: "Darrick J. Wong" <djwong@kernel.org> Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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#
75d1e312 |
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04-Oct-2023 |
Jeff Layton <jlayton@kernel.org> |
xfs: convert to new timestamp accessors Convert to using the new inode timestamp accessor functions. Signed-off-by: Jeff Layton <jlayton@kernel.org> Link: https://lore.kernel.org/r/20231004185347.80880-75-jlayton@kernel.org Signed-off-by: Christian Brauner <brauner@kernel.org>
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#
537c013b |
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24-Sep-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: fix reloading entire unlinked bucket lists During review of the patcheset that provided reloading of the incore iunlink list, Dave made a few suggestions, and I updated the copy in my dev tree. Unfortunately, I then got distracted by ... who even knows what ... and forgot to backport those changes from my dev tree to my release candidate branch. I then sent multiple pull requests with stale patches, and that's what was merged into -rc3. So. This patch re-adds the use of an unlocked iunlink list check to determine if we want to allocate the resources to recreate the incore list. Since lost iunlinked inodes are supposed to be rare, this change helps us avoid paying the transaction and AGF locking costs every time we open any inode. This also re-adds the shutdowns on failure, and re-applies the restructuring of the inner loop in xfs_inode_reload_unlinked_bucket, and re-adds a requested comment about the quotachecking code. Retain the original RVB tag from Dave since there's no code change from the last submission. Fixes: 68b957f64fca1 ("xfs: load uncached unlinked inodes into memory on demand") Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
83771c50 |
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11-Sep-2023 |
Darrick J. Wong <djwong@kernel.org> |
xfs: reload entire unlinked bucket lists The previous patch to reload unrecovered unlinked inodes when adding a newly created inode to the unlinked list is missing a key piece of functionality. It doesn't handle the case that someone calls xfs_iget on an inode that is not the last item in the incore list. For example, if at mount time the ondisk iunlink bucket looks like this: AGI -> 7 -> 22 -> 3 -> NULL None of these three inodes are cached in memory. Now let's say that someone tries to open inode 3 by handle. We need to walk the list to make sure that inodes 7 and 22 get loaded cold, and that the i_prev_unlinked of inode 3 gets set to 22. Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
a0a415e3 |
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05-Jul-2023 |
Jeff Layton <jlayton@kernel.org> |
xfs: convert to ctime accessor functions In later patches, we're going to change how the inode's ctime field is used. Switch to using accessor functions instead of raw accesses of inode->i_ctime. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Jan Kara <jack@suse.cz> Message-Id: <20230705190309.579783-80-jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
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#
e67fe633 |
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12-Jan-2023 |
Christian Brauner <brauner@kernel.org> |
fs: port i_{g,u}id_into_vfs{g,u}id() to mnt_idmap Convert to struct mnt_idmap. Remove legacy file_mnt_user_ns() and mnt_user_ns(). Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
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#
42b7cc11 |
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18-Sep-2022 |
Christian Brauner <brauner@kernel.org> |
xfs: port to vfs{g,u}id_t and associated helpers A while ago we introduced a dedicated vfs{g,u}id_t type in commit 1e5267cd0895 ("mnt_idmapping: add vfs{g,u}id_t"). We already switched over a good part of the VFS. Ultimately we will remove all legacy idmapped mount helpers that operate only on k{g,u}id_t in favor of the new type safe helpers that operate on vfs{g,u}id_t. Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
c01147d9 |
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09-Jul-2022 |
Darrick J. Wong <djwong@kernel.org> |
xfs: replace inode fork size macros with functions Replace the shouty macros here with typechecked helper functions. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
2ed5b09b |
|
09-Jul-2022 |
Darrick J. Wong <djwong@kernel.org> |
xfs: make inode attribute forks a permanent part of struct xfs_inode Syzkaller reported a UAF bug a while back: ================================================================== BUG: KASAN: use-after-free in xfs_ilock_attr_map_shared+0xe3/0xf6 fs/xfs/xfs_inode.c:127 Read of size 4 at addr ffff88802cec919c by task syz-executor262/2958 CPU: 2 PID: 2958 Comm: syz-executor262 Not tainted 5.15.0-0.30.3-20220406_1406 #3 Hardware name: Red Hat KVM, BIOS 1.13.0-2.module+el8.3.0+7860+a7792d29 04/01/2014 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x82/0xa9 lib/dump_stack.c:106 print_address_description.constprop.9+0x21/0x2d5 mm/kasan/report.c:256 __kasan_report mm/kasan/report.c:442 [inline] kasan_report.cold.14+0x7f/0x11b mm/kasan/report.c:459 xfs_ilock_attr_map_shared+0xe3/0xf6 fs/xfs/xfs_inode.c:127 xfs_attr_get+0x378/0x4c2 fs/xfs/libxfs/xfs_attr.c:159 xfs_xattr_get+0xe3/0x150 fs/xfs/xfs_xattr.c:36 __vfs_getxattr+0xdf/0x13d fs/xattr.c:399 cap_inode_need_killpriv+0x41/0x5d security/commoncap.c:300 security_inode_need_killpriv+0x4c/0x97 security/security.c:1408 dentry_needs_remove_privs.part.28+0x21/0x63 fs/inode.c:1912 dentry_needs_remove_privs+0x80/0x9e fs/inode.c:1908 do_truncate+0xc3/0x1e0 fs/open.c:56 handle_truncate fs/namei.c:3084 [inline] do_open fs/namei.c:3432 [inline] path_openat+0x30ab/0x396d fs/namei.c:3561 do_filp_open+0x1c4/0x290 fs/namei.c:3588 do_sys_openat2+0x60d/0x98c fs/open.c:1212 do_sys_open+0xcf/0x13c fs/open.c:1228 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3a/0x7e arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0x0 RIP: 0033:0x7f7ef4bb753d Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 1b 79 2c 00 f7 d8 64 89 01 48 RSP: 002b:00007f7ef52c2ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000055 RAX: ffffffffffffffda RBX: 0000000000404148 RCX: 00007f7ef4bb753d RDX: 00007f7ef4bb753d RSI: 0000000000000000 RDI: 0000000020004fc0 RBP: 0000000000404140 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0030656c69662f2e R13: 00007ffd794db37f R14: 00007ffd794db470 R15: 00007f7ef52c2fc0 </TASK> Allocated by task 2953: kasan_save_stack+0x19/0x38 mm/kasan/common.c:38 kasan_set_track mm/kasan/common.c:46 [inline] set_alloc_info mm/kasan/common.c:434 [inline] __kasan_slab_alloc+0x68/0x7c mm/kasan/common.c:467 kasan_slab_alloc include/linux/kasan.h:254 [inline] slab_post_alloc_hook mm/slab.h:519 [inline] slab_alloc_node mm/slub.c:3213 [inline] slab_alloc mm/slub.c:3221 [inline] kmem_cache_alloc+0x11b/0x3eb mm/slub.c:3226 kmem_cache_zalloc include/linux/slab.h:711 [inline] xfs_ifork_alloc+0x25/0xa2 fs/xfs/libxfs/xfs_inode_fork.c:287 xfs_bmap_add_attrfork+0x3f2/0x9b1 fs/xfs/libxfs/xfs_bmap.c:1098 xfs_attr_set+0xe38/0x12a7 fs/xfs/libxfs/xfs_attr.c:746 xfs_xattr_set+0xeb/0x1a9 fs/xfs/xfs_xattr.c:59 __vfs_setxattr+0x11b/0x177 fs/xattr.c:180 __vfs_setxattr_noperm+0x128/0x5e0 fs/xattr.c:214 __vfs_setxattr_locked+0x1d4/0x258 fs/xattr.c:275 vfs_setxattr+0x154/0x33d fs/xattr.c:301 setxattr+0x216/0x29f fs/xattr.c:575 __do_sys_fsetxattr fs/xattr.c:632 [inline] __se_sys_fsetxattr fs/xattr.c:621 [inline] __x64_sys_fsetxattr+0x243/0x2fe fs/xattr.c:621 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3a/0x7e arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0x0 Freed by task 2949: kasan_save_stack+0x19/0x38 mm/kasan/common.c:38 kasan_set_track+0x1c/0x21 mm/kasan/common.c:46 kasan_set_free_info+0x20/0x30 mm/kasan/generic.c:360 ____kasan_slab_free mm/kasan/common.c:366 [inline] ____kasan_slab_free mm/kasan/common.c:328 [inline] __kasan_slab_free+0xe2/0x10e mm/kasan/common.c:374 kasan_slab_free include/linux/kasan.h:230 [inline] slab_free_hook mm/slub.c:1700 [inline] slab_free_freelist_hook mm/slub.c:1726 [inline] slab_free mm/slub.c:3492 [inline] kmem_cache_free+0xdc/0x3ce mm/slub.c:3508 xfs_attr_fork_remove+0x8d/0x132 fs/xfs/libxfs/xfs_attr_leaf.c:773 xfs_attr_sf_removename+0x5dd/0x6cb fs/xfs/libxfs/xfs_attr_leaf.c:822 xfs_attr_remove_iter+0x68c/0x805 fs/xfs/libxfs/xfs_attr.c:1413 xfs_attr_remove_args+0xb1/0x10d fs/xfs/libxfs/xfs_attr.c:684 xfs_attr_set+0xf1e/0x12a7 fs/xfs/libxfs/xfs_attr.c:802 xfs_xattr_set+0xeb/0x1a9 fs/xfs/xfs_xattr.c:59 __vfs_removexattr+0x106/0x16a fs/xattr.c:468 cap_inode_killpriv+0x24/0x47 security/commoncap.c:324 security_inode_killpriv+0x54/0xa1 security/security.c:1414 setattr_prepare+0x1a6/0x897 fs/attr.c:146 xfs_vn_change_ok+0x111/0x15e fs/xfs/xfs_iops.c:682 xfs_vn_setattr_size+0x5f/0x15a fs/xfs/xfs_iops.c:1065 xfs_vn_setattr+0x125/0x2ad fs/xfs/xfs_iops.c:1093 notify_change+0xae5/0x10a1 fs/attr.c:410 do_truncate+0x134/0x1e0 fs/open.c:64 handle_truncate fs/namei.c:3084 [inline] do_open fs/namei.c:3432 [inline] path_openat+0x30ab/0x396d fs/namei.c:3561 do_filp_open+0x1c4/0x290 fs/namei.c:3588 do_sys_openat2+0x60d/0x98c fs/open.c:1212 do_sys_open+0xcf/0x13c fs/open.c:1228 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3a/0x7e arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0x0 The buggy address belongs to the object at ffff88802cec9188 which belongs to the cache xfs_ifork of size 40 The buggy address is located 20 bytes inside of 40-byte region [ffff88802cec9188, ffff88802cec91b0) The buggy address belongs to the page: page:00000000c3af36a1 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x2cec9 flags: 0xfffffc0000200(slab|node=0|zone=1|lastcpupid=0x1fffff) raw: 000fffffc0000200 ffffea00009d2580 0000000600000006 ffff88801a9ffc80 raw: 0000000000000000 0000000080490049 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff88802cec9080: fb fb fb fc fc fa fb fb fb fb fc fc fb fb fb fb ffff88802cec9100: fb fc fc fb fb fb fb fb fc fc fb fb fb fb fb fc >ffff88802cec9180: fc fa fb fb fb fb fc fc fa fb fb fb fb fc fc fb ^ ffff88802cec9200: fb fb fb fb fc fc fb fb fb fb fb fc fc fb fb fb ffff88802cec9280: fb fb fc fc fa fb fb fb fb fc fc fa fb fb fb fb ================================================================== The root cause of this bug is the unlocked access to xfs_inode.i_afp from the getxattr code paths while trying to determine which ILOCK mode to use to stabilize the xattr data. Unfortunately, the VFS does not acquire i_rwsem when vfs_getxattr (or listxattr) call into the filesystem, which means that getxattr can race with a removexattr that's tearing down the attr fork and crash: xfs_attr_set: xfs_attr_get: xfs_attr_fork_remove: xfs_ilock_attr_map_shared: xfs_idestroy_fork(ip->i_afp); kmem_cache_free(xfs_ifork_cache, ip->i_afp); if (ip->i_afp && ip->i_afp = NULL; xfs_need_iread_extents(ip->i_afp)) <KABOOM> ip->i_forkoff = 0; Regrettably, the VFS is much more lax about i_rwsem and getxattr than is immediately obvious -- not only does it not guarantee that we hold i_rwsem, it actually doesn't guarantee that we *don't* hold it either. The getxattr system call won't acquire the lock before calling XFS, but the file capabilities code calls getxattr with and without i_rwsem held to determine if the "security.capabilities" xattr is set on the file. Fixing the VFS locking requires a treewide investigation into every code path that could touch an xattr and what i_rwsem state it expects or sets up. That could take years or even prove impossible; fortunately, we can fix this UAF problem inside XFS. An earlier version of this patch used smp_wmb in xfs_attr_fork_remove to ensure that i_forkoff is always zeroed before i_afp is set to null and changed the read paths to use smp_rmb before accessing i_forkoff and i_afp, which avoided these UAF problems. However, the patch author was too busy dealing with other problems in the meantime, and by the time he came back to this issue, the situation had changed a bit. On a modern system with selinux, each inode will always have at least one xattr for the selinux label, so it doesn't make much sense to keep incurring the extra pointer dereference. Furthermore, Allison's upcoming parent pointer patchset will also cause nearly every inode in the filesystem to have extended attributes. Therefore, make the inode attribute fork structure part of struct xfs_inode, at a cost of 40 more bytes. This patch adds a clunky if_present field where necessary to maintain the existing logic of xattr fork null pointer testing in the existing codebase. The next patch switches the logic over to XFS_IFORK_Q and it all goes away. Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
c3c4ecb5 |
|
08-Mar-2022 |
Chandan Babu R <chandan.babu@oracle.com> |
xfs: Enable bulkstat ioctl to support 64-bit per-inode extent counters The following changes are made to enable userspace to obtain 64-bit extent counters, 1. Carve out a new 64-bit field xfs_bulkstat->bs_extents64 from xfs_bulkstat->bs_pad[] to hold 64-bit extent counter. 2. Define the new flag XFS_BULK_IREQ_BULKSTAT for userspace to indicate that it is capable of receiving 64-bit extent counters. Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Suggested-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
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#
5b35d922 |
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08-Mar-2022 |
Chandan Babu R <chandan.babu@oracle.com> |
xfs: Decouple XFS_IBULK flags from XFS_IWALK flags A future commit will add a new XFS_IBULK flag which will not have a corresponding XFS_IWALK flag. In preparation for the change, this commit separates XFS_IBULK_* flags from XFS_IWALK_* flags. Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Chandan Babu R <chandan.babu@oracle.com>
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#
38c26bfd |
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18-Aug-2021 |
Dave Chinner <dchinner@redhat.com> |
xfs: replace xfs_sb_version checks with feature flag checks Convert the xfs_sb_version_hasfoo() to checks against mp->m_features. Checks of the superblock itself during disk operations (e.g. in the read/write verifiers and the to/from disk formatters) are not converted - they operate purely on the superblock state. Everything else should use the mount features. Large parts of this conversion were done with sed with commands like this: for f in `git grep -l xfs_sb_version_has fs/xfs/*.c`; do sed -i -e 's/xfs_sb_version_has\(.*\)(&\(.*\)->m_sb)/xfs_has_\1(\2)/' $f done With manual cleanups for things like "xfs_has_extflgbit" and other little inconsistencies in naming. The result is ia lot less typing to check features and an XFS binary size reduced by a bit over 3kB: $ size -t fs/xfs/built-in.a text data bss dec hex filenam before 1130866 311352 484 1442702 16038e (TOTALS) after 1127727 311352 484 1439563 15f74b (TOTALS) Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
a6343e4d |
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06-Aug-2021 |
Darrick J. Wong <djwong@kernel.org> |
xfs: avoid buffer deadlocks when walking fs inodes When we're servicing an INUMBERS or BULKSTAT request or running quotacheck, grab an empty transaction so that we can use its inherent recursive buffer locking abilities to detect inode btree cycles without hitting ABBA buffer deadlocks. This patch requires the deferred inode inactivation patchset because xfs_irele cannot directly call xfs_inactive when the iwalk itself has an (empty) transaction. Found by fuzzing an inode btree pointer to introduce a cycle into the tree (xfs/365). Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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e98d5e88 |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_crtime field to struct xfs_inode Move the crtime field from struct xfs_icdinode into stuct xfs_inode and remove the now entirely unused struct xfs_icdinode. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
3e09ab8f |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_flags2 field to struct xfs_inode In preparation of removing the historic icinode struct, move the flags2 field into the containing xfs_inode structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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b33ce57d |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_cowextsize field to struct xfs_inode In preparation of removing the historic icinode struct, move the cowextsize field into the containing xfs_inode structure. Also switch to use the xfs_extlen_t instead of a uint32_t. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
031474c2 |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_extsize field to struct xfs_inode In preparation of removing the historic icinode struct, move the extsize field into the containing xfs_inode structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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6e73a545 |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_nblocks field to struct xfs_inode In preparation of removing the historic icinode struct, move the nblocks field into the containing xfs_inode structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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13d2c10b |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_size field to struct xfs_inode In preparation of removing the historic icinode struct, move the on-disk size field into the containing xfs_inode structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
ceaf603c |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: move the di_projid field to struct xfs_inode In preparation of removing the historic icinode struct, move the projid field into the containing xfs_inode structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
582a7344 |
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29-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: handle crtime more carefully in xfs_bulkstat_one_int The crtime only exists for v5 inodes, so only copy it for those. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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8723d5ba |
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14-Mar-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: also reject BULKSTAT_SINGLE in a mount user namespace BULKSTAT_SINGLE exposed the ondisk uids/gids just like bulkstat, and can be called on any inode, including ones not visible in the current mount. Fixes: f736d93d76d3 ("xfs: support idmapped mounts") Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
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#
f736d93d |
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21-Jan-2021 |
Christoph Hellwig <hch@lst.de> |
xfs: support idmapped mounts Enable idmapped mounts for xfs. This basically just means passing down the user_namespace argument from the VFS methods down to where it is passed to the relevant helpers. Note that full-filesystem bulkstat is not supported from inside idmapped mounts as it is an administrative operation that acts on the whole file system. The limitation is not applied to the bulkstat single operation that just operates on a single inode. Link: https://lore.kernel.org/r/20210121131959.646623-40-christian.brauner@ubuntu.com Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
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#
f7e67b20 |
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18-May-2020 |
Christoph Hellwig <hch@lst.de> |
xfs: move the fork format fields into struct xfs_ifork Both the data and attr fork have a format that is stored in the legacy idinode. Move it into the xfs_ifork structure instead, where it uses up padding. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
daf83964 |
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18-May-2020 |
Christoph Hellwig <hch@lst.de> |
xfs: move the per-fork nextents fields into struct xfs_ifork There are there are three extents counters per inode, one for each of the forks. Two are in the legacy icdinode and one is directly in struct xfs_inode. Switch to a single counter in the xfs_ifork structure where it uses up padding at the end of the structure. This simplifies various bits of code that just wants the number of extents counter and can now directly dereference it. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
6471e9c5 |
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18-Mar-2020 |
Christoph Hellwig <hch@lst.de> |
xfs: remove the di_version field from struct icdinode We know the version is 3 if on a v5 file system. For earlier file systems formats we always upgrade the remaining v1 inodes to v2 and thus only use v2 inodes. Use the xfs_sb_version_has_large_dinode helper to check if we deal with small or large dinodes, and thus remove the need for the di_version field in struct icdinode. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
ba8adad5 |
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21-Feb-2020 |
Christoph Hellwig <hch@lst.de> |
xfs: remove the kuid/kgid conversion wrappers Remove the XFS wrappers for converting from and to the kuid/kgid types. Mostly this means switching to VFS i_{u,g}id_{read,write} helpers, but in a few spots the calls to the conversion functions is open coded. To match the use of sb->s_user_ns in the helpers and other file systems, sb->s_user_ns is also used in the quota code. The ACL code already does the conversion in a grotty layering violation in the VFS xattr code, so it keeps using init_user_ns for the identity mapping. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
54295159 |
|
21-Feb-2020 |
Christoph Hellwig <hch@lst.de> |
xfs: remove the icdinode di_uid/di_gid members Use the Linux inode i_uid/i_gid members everywhere and just convert from/to the scalar value when reading or writing the on-disk inode. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
de7a866f |
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12-Nov-2019 |
Christoph Hellwig <hch@lst.de> |
xfs: merge the projid fields in struct xfs_icdinode There is no point in splitting the fields like this in an purely in-memory structure. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
8d2d878d |
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12-Nov-2019 |
Christoph Hellwig <hch@lst.de> |
xfs: use a struct timespec64 for the in-core crtime struct xfs_icdinode is purely an in-memory data structure, so don't use a log on-disk structure for it. This simplifies the code a bit, and also reduces our include hell slightly. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> [darrick: fix a minor indenting problem in xfs_trans_ichgtime] Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
e7ee96df |
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28-Aug-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: remove all *_ITER_ABORT values Use -ECANCELED to signal "stop iterating" instead of these magical *_ITER_ABORT values, since it's duplicative. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
707e0dda |
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26-Aug-2019 |
Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> |
fs: xfs: Remove KM_NOSLEEP and KM_SLEEP. Since no caller is using KM_NOSLEEP and no callee branches on KM_SLEEP, we can remove KM_NOSLEEP and replace KM_SLEEP with 0. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
2e616d9f |
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28-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: fix stack contents leakage in the v1 inumber ioctls Explicitly initialize the onstack structures to zero so we don't leak kernel memory into userspace when converting the in-core inumbers structure to the v1 inogrp ioctl structure. Add a comment about why we have to use memset to ensure that the padding holes in the structures are set to zero. Fixes: 5f19c7fc6873351 ("xfs: introduce v5 inode group structure") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com>
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#
0df5c39b |
|
08-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: bump INUMBERS cursor correctly in xfs_inumbers_walk There's a subtle unit conversion error when we increment the INUMBERS cursor at the end of xfs_inumbers_walk. If there's an inode chunk at the very end of the AG /and/ the AG size is a perfect power of two, the startino of that last chunk (which is in units of AG inodes) will be 63 less than (1 << agino_log). If we add XFS_INODES_PER_CHUNK to the startino, we end up with a startino that's larger than (1 << agino_log) and when we convert that back to fs inode units we'll rip off that upper bit and wind up back at the start of the AG. Fix this by converting to units of fs inodes before adding XFS_INODES_PER_CHUNK so that we'll harmlessly end up pointing to the next AG. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
13d59a2a |
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03-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: specify AG in bulk req Add a new xfs_bulk_ireq flag to constrain the iteration to a single AG. If the passed-in startino value is zero then we start with the first inode in the AG that the user passes in; otherwise, we iterate only within the same AG as the passed-in inode. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
5f19c7fc |
|
03-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: introduce v5 inode group structure Introduce a new "v5" inode group structure that fixes the alignment and padding problems of the existing structure. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
7035f972 |
|
03-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: introduce new v5 bulkstat structure Introduce a new version of the in-core bulkstat structure that supports our new v5 format features. This structure also fills the gaps in the previous structure. We leave wiring up the ioctls for the next patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
677717fb |
|
02-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: refactor INUMBERS to use iwalk functions Now that we have generic functions to walk inode records, refactor the INUMBERS implementation to use it. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
da1d9e59 |
|
02-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: move bulkstat ichunk helpers to iwalk code Now that we've reworked the bulkstat code to use iwalk, we can move the old bulkstat ichunk helpers to xfs_iwalk.c. No functional changes here. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
|
#
2810bd68 |
|
02-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: convert bulkstat to new iwalk infrastructure Create a new ibulk structure incore to help us deal with bulk inode stat state tracking and then convert the bulkstat code to use the new iwalk iterator. This disentangles inode walking from bulk stat control for simpler code and enables us to isolate the formatter functions to the ioctl handling code. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
a211432c |
|
02-Jul-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: create simplified inode walk function Create a new iterator function to simplify walking inodes in an XFS filesystem. This new iterator will replace the existing open-coded walking that goes on in various places. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
250d4b4c |
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28-Jun-2019 |
Eric Sandeen <sandeen@sandeen.net> |
xfs: remove unused header files There are many, many xfs header files which are included but unneeded (or included twice) in the xfs code, so remove them. nb: xfs_linux.h includes about 9 headers for everyone, so those explicit includes get removed by this. I'm not sure what the preference is, but if we wanted explicit includes everywhere, a followup patch could remove those xfs_*.h includes from xfs_linux.h and move them into the files that need them. Or it could be left as-is. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
ef325959 |
|
05-Jun-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: separate inode geometry Separate the inode geometry information into a distinct structure. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
89d139d5 |
|
12-Apr-2019 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: report inode health via bulkstat Use space in the bulkstat ioctl structure to report any problems observed with the inode. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
83dcdb44 |
|
12-Dec-2018 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: precalculate inodes and blocks per inode cluster Store the number of inodes and blocks per inode cluster in the mount data so that we don't have to keep recalculating them. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
43004b2a |
|
12-Dec-2018 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: add a block to inode count converter Add new helpers to convert units of fs blocks into inodes, and AG blocks into AG inodes, respectively. Convert all the open-coded conversions and XFS_OFFBNO_TO_AGINO(, , 0) calls to use them, as appropriate. The OFFBNO_TO_AGINO macro is retained for xfs_repair. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
44a8736b |
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25-Jul-2018 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: clean up IRELE/iput callsites Replace the IRELE macro with a proper function so that we can do proper typechecking and so that we can stop open-coding iput in scrub, which means that we'll be able to ftrace inode lifetimes going through scrub correctly. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
0b04b6b8 |
|
19-Jul-2018 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: trivial xfs_btree_del_cursor cleanups The error argument to xfs_btree_del_cursor already understands the "nonzero for error" semantics, so remove pointless error testing in the callers and pass it directly. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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#
9bb54cb5 |
|
07-Jun-2018 |
Dave Chinner <dchinner@redhat.com> |
xfs: clean up MIN/MAX Get rid of the MIN/MAX macros and just use the native min/max macros directly in the XFS code. Signed-Off-By: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
0b61f8a4 |
|
05-Jun-2018 |
Dave Chinner <dchinner@redhat.com> |
xfs: convert to SPDX license tags Remove the verbose license text from XFS files and replace them with SPDX tags. This does not change the license of any of the code, merely refers to the common, up-to-date license files in LICENSES/ This change was mostly scripted. fs/xfs/Makefile and fs/xfs/libxfs/xfs_fs.h were modified by hand, the rest were detected and modified by the following command: for f in `git grep -l "GNU General" fs/xfs/` ; do echo $f cat $f | awk -f hdr.awk > $f.new mv -f $f.new $f done And the hdr.awk script that did the modification (including detecting the difference between GPL-2.0 and GPL-2.0+ licenses) is as follows: $ cat hdr.awk BEGIN { hdr = 1.0 tag = "GPL-2.0" str = "" } /^ \* This program is free software/ { hdr = 2.0; next } /any later version./ { tag = "GPL-2.0+" next } /^ \*\// { if (hdr > 0.0) { print "// SPDX-License-Identifier: " tag print str print $0 str="" hdr = 0.0 next } print $0 next } /^ \* / { if (hdr > 1.0) next if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 next } /^ \*/ { if (hdr > 0.0) next print $0 next } // { if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 } END { } $ Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
66f36464 |
|
19-Oct-2017 |
Christoph Hellwig <hch@lst.de> |
xfs: remove if_rdev We can simply use the i_rdev field in the Linux inode and just convert to and from the XFS dev_t when reading or logging/writing the inode. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
|
#
42b67dc6 |
|
19-Oct-2017 |
Christoph Hellwig <hch@lst.de> |
xfs: remove the never fully implemented UUID fork format Remove the dead code dealing with the UUID fork format that was never implemented in Linux (and neither in IRIX as far as I know). Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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#
91fb9afc |
|
17-Oct-2017 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: create inode pointer verifiers Create some helper functions to check that inode pointers point to somewhere within the filesystem and not at the static AG metadata. Move xfs_internal_inum and create a directory inode check function. We will use these functions in scrub and elsewhere. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com>
|
#
26788097 |
|
16-Jun-2017 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: export various function for the online scrubber Export various internal functions so that the online scrubber can use them to check the state of metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
|
#
f1c0e202 |
|
03-Apr-2017 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: fix kernel memory exposure problems Fix a memory exposure problems in inumbers where we allocate an array of structures with holes, fail to zero the holes, then blindly copy the kernel memory contents (junk and all) into userspace. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
|
#
bf9216f9 |
|
03-Apr-2017 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: fix kernel memory exposure problems Fix a memory exposure problems in inumbers where we allocate an array of structures with holes, fail to zero the holes, then blindly copy the kernel memory contents (junk and all) into userspace. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
|
#
08b005f1 |
|
06-Mar-2017 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: remove kmem_zalloc_greedy The sole remaining caller of kmem_zalloc_greedy is bulkstat, which uses it to grab 1-4 pages for staging of inobt records. The infinite loop in the greedy allocation function is causing hangs[1] in generic/269, so just get rid of the greedy allocator in favor of kmem_zalloc_large. This makes bulkstat somewhat more likely to ENOMEM if there's really no pages to spare, but eliminates a source of hangs. [1] http://lkml.kernel.org/r/20170301044634.rgidgdqqiiwsmfpj%40XZHOUW.usersys.redhat.com Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> --- v2: remove single-page fallback
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#
f7ca3522 |
|
03-Oct-2016 |
Darrick J. Wong <darrick.wong@oracle.com> |
xfs: create a separate cow extent size hint for the allocator Create a per-inode extent size allocator hint for copy-on-write. This hint is separate from the existing extent size hint so that CoW can take advantage of the fragmentation-reducing properties of extent size hints without disabling delalloc for regular writes. The extent size hint that's fed to the allocator during a copy on write operation is the greater of the cowextsize and regular extsize hint. During reflink, if we're sharing the entire source file to the entire destination file and the destination file doesn't already have a cowextsize hint, propagate the source file's cowextsize hint to the destination file. Furthermore, zero the bulkstat buffer prior to setting the fields so that we don't copy kernel memory contents into userspace. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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#
c19b3b05 |
|
08-Feb-2016 |
Dave Chinner <dchinner@redhat.com> |
xfs: mode di_mode to vfs inode Move the di_mode value from the xfs_icdinode to the VFS inode, reducing the xfs_icdinode byte another 2 bytes and collapsing another 2 byte hole in the structure. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
9e9a2674 |
|
08-Feb-2016 |
Dave Chinner <dchinner@redhat.com> |
xfs: move inode generation count to VFS inode Pull another 4 bytes out of the xfs_icdinode. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
54d7b5c1 |
|
08-Feb-2016 |
Dave Chinner <dchinner@redhat.com> |
xfs: use vfs inode nlink field everywhere The VFS tracks the inode nlink just like the xfs_icdinode. We can remove the variable from the icdinode and use the VFS inode variable everywhere, reducing the size of the xfs_icdinode by a further 4 bytes. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
3987848c |
|
08-Feb-2016 |
Dave Chinner <dchinner@redhat.com> |
xfs: remove timestamps from incore inode The struct xfs_inode has two copies of the current timestamps in it, one in the vfs inode and one in the struct xfs_icdinode. Now that we no longer log the struct xfs_icdinode directly, we don't need to keep the timestamps in this structure. instead we can copy them straight out of the VFS inode when formatting the inode log item or the on-disk inode. This reduces the struct xfs_inode in size by 24 bytes. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
f307080a |
|
18-Aug-2015 |
Brian Foster <bfoster@redhat.com> |
xfs: fix btree cursor error cleanups The btree cursor cleanup function takes an error parameter that affects how buffers are released from the cursor. All buffers are released in the event of error. Several callers do not specify the XFS_BTREE_ERROR flag in the event of error, however. This can cause buffers to hang around locked or with an elevated hold count and thus lead to umount hangs in the event of errors. Fix up the xfs_btree_del_cursor() callers to pass XFS_BTREE_ERROR if the cursor is being torn down due to error. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
12d0714d |
|
28-May-2015 |
Brian Foster <bfoster@redhat.com> |
xfs: use actual inode count for sparse records in bulkstat/inumbers The bulkstat and inumbers mechanisms make the assumption that inode records consist of a full 64 inode chunk in several places. For example, this is used to track how many inodes have been processed overall as well as to determine whether a record has allocated inodes that must be handled. This assumption is invalid for sparse inode records. While sparse inodes will be marked as free in the ir_free mask, they are not accounted as free in ir_freecount because they cannot be allocated. Therefore, ir_freecount may be less than 64 inodes in an inode record for which all physically allocated inodes are free (and in turn ir_freecount < 64 does not signify that the record has allocated inodes). The new in-core inobt record format includes the ir_count field. This holds the number of true, physical inodes tracked by the record. The in-core ir_count field is always valid as it is hardcoded to XFS_INODES_PER_CHUNK when sparse inodes is not enabled. Use ir_count to handle inode records correctly in bulkstat in a generic manner. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
5fb5aeee |
|
23-Feb-2015 |
Eric Sandeen <sandeen@sandeen.net> |
xfs: pass mp to XFS_WANT_CORRUPTED_RETURN Today, if we hit an XFS_WANT_CORRUPTED_RETURN we don't print any information about which filesystem hit it. Passing in the mp allows us to print the filesystem (device) name, which is a pretty critical piece of information. Tested by running fsfuzzer 'til I hit some. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
32296f86 |
|
03-Dec-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: fix set-but-unused warnings The kernel compile doesn't turn on these checks by default, so it's only when I do a kernel-user sync that I find that there are lots of compiler warnings waiting to be fixed. Fix up these set-but-unused warnings. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
508b6b3b |
|
27-Nov-2014 |
Christoph Hellwig <hch@lst.de> |
xfs: merge xfs_inum.h into xfs_format.h Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
|
#
bb58e618 |
|
27-Nov-2014 |
Christoph Hellwig <hch@lst.de> |
xfs: move most of xfs_sb.h to xfs_format.h More on-disk format consolidation. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
4fb6e8ad |
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27-Nov-2014 |
Christoph Hellwig <hch@lst.de> |
xfs: merge xfs_ag.h into xfs_format.h More on-disk format consolidation. A few declarations that weren't on-disk format related move into better suitable spots. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
6d3ebaae |
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27-Nov-2014 |
Christoph Hellwig <hch@lst.de> |
xfs: merge xfs_dinode.h into xfs_format.h More consolidatation for the on-disk format defintions. Note that the XFS_IS_REALTIME_INODE moves to xfs_linux.h instead as it is not related to the on disk format, but depends on a CONFIG_ option. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
00275899 |
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06-Nov-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: track bulkstat progress by agino The bulkstat main loop progress is tracked by the "lastino" variable, which is a full 64 bit inode. However, the loop actually works on agno/agino pairs, and so there's a significant disconnect between the rest of the loop and the main cursor. Convert this to use the agino, and pass the agino into the chunk formatting function and convert it too. This gets rid of the inconsistency in the loop processing, and finally makes it simple for us to skip inodes at any point in the loop simply by incrementing the agino cursor. cc: <stable@vger.kernel.org> # 3.17 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
febe3cbe |
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06-Nov-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: bulkstat error handling is broken The error propagation is a horror - xfs_bulkstat() returns a rval variable which is only set if there are formatter errors. Any sort of btree walk error or corruption will cause the bulkstat walk to terminate but will not pass an error back to userspace. Worse is the fact that formatter errors will also be ignored if any inodes were correctly formatted into the user buffer. Hence bulkstat can fail badly yet still report success to userspace. This causes significant issues with xfsdump not dumping everything in the filesystem yet reporting success. It's not until a restore fails that there is any indication that the dump was bad and tha bulkstat failed. This patch now triggers xfsdump to fail with bulkstat errors rather than silently missing files in the dump. This now causes bulkstat to fail when the lastino cookie does not fall inside an existing inode chunk. The pre-3.17 code tolerated that error by allowing the code to move to the next inode chunk as the agino target is guaranteed to fall into the next btree record. With the fixes up to this point in the series, xfsdump now passes on the troublesome filesystem image that exposes all these bugs. cc: <stable@vger.kernel.org> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
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#
6e57c542 |
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06-Nov-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: bulkstat main loop logic is a mess There are a bunch of variables tha tare more wildy scoped than they need to be, obfuscated user buffer checks and tortured "next inode" tracking. This all needs cleaning up to expose the real issues that need fixing. cc: <stable@vger.kernel.org> # 3.17 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
2b831ac6 |
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06-Nov-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: bulkstat chunk-formatter has issues The loop construct has issues: - clustidx is completely unused, so remove it. - the loop tries to be smart by terminating when the "freecount" tells it that all inodes are free. Just drop it as in most cases we have to scan all inodes in the chunk anyway. - move the "user buffer left" condition check to the only point where we consume space int eh user buffer. - move the initialisation of agino out of the loop, leaving just a simple loop control logic using the clusteridx. Also, double handling of the user buffer variables leads to problems tracking the current state - use the cursor variables directly rather than keeping local copies and then having to update the cursor before returning. cc: <stable@vger.kernel.org> # 3.17 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
bf4a5af2 |
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06-Nov-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: bulkstat chunk formatting cursor is broken The xfs_bulkstat_agichunk formatting cursor takes buffer values from the main loop and passes them via the structure to the chunk formatter, and the writes the changed values back into the main loop local variables. Unfortunately, this complex dance is full of corner cases that aren't handled correctly. The biggest problem is that it is double handling the information in both the main loop and the chunk formatting function, leading to inconsistent updates and endless loops where progress is not made. To fix this, push the struct xfs_bulkstat_agichunk outwards to be the primary holder of user buffer information. this removes the double handling in the main loop. Also, pass the last inode processed by the chunk formatter as a separate parameter as it purely an output variable and is not related to the user buffer consumption cursor. Finally, the chunk formatting code is not shared by anyone, so make it local to xfs_itable.c. cc: <stable@vger.kernel.org> # 3.17 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
afa947cb |
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06-Nov-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: bulkstat btree walk doesn't terminate The bulkstat code has several different ways of detecting the end of an AG when doing a walk. They are not consistently detected, and the code that checks for the end of AG conditions is not consistently coded. Hence the are conditions where the walk code can get stuck in an endless loop making no progress and not triggering any termination conditions. Convert all the "tmp/i" status return codes from btree operations to a common name (stat) and apply end-of-ag detection to these operations consistently. cc: <stable@vger.kernel.org> # 3.17 Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
7a19dee1 |
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29-Oct-2014 |
Jan Kara <jack@suse.cz> |
xfs: Check error during inode btree iteration in xfs_bulkstat() xfs_bulkstat() doesn't check error return from xfs_btree_increment(). In case of specific fs corruption that could result in xfs_bulkstat() entering an infinite loop because we would be looping over the same chunk over and over again. Fix the problem by checking the return value and terminating the loop properly. Coverity-id: 1231338 cc: <stable@vger.kernel.org> Signed-off-by: Jan Kara <jack@suse.cz> Reviewed-by: Jie Liu <jeff.u.liu@gmail.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
a6bbce54 |
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28-Oct-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: bulkstat doesn't release AGI buffer on error The recent refactoring of the bulkstat code left a small landmine in the code. If a inobt read fails, then the tree walk is aborted and returns without releasing the AGI buffer or freeing the cursor. This can lead to a subsequent bulkstat call hanging trying to grab the AGI buffer again. cc: <stable@vger.kernel.org> Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
a8b1ee8b |
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12-Oct-2014 |
Eric Sandeen <sandeen@sandeen.net> |
xfs: fix agno increment in xfs_inumbers() loop caused a regression in xfs_inumbers, which in turn broke xfsdump, causing incomplete dumps. The loop in xfs_inumbers() needs to fill the user-supplied buffers, and iterates via xfs_btree_increment, reading new ags as needed. But the first time through the loop, if xfs_btree_increment() succeeds, we continue, which triggers the ++agno at the bottom of the loop, and we skip to soon to the next ag - without the proper setup under next_ag to read the next ag. Fix this by removing the agno increment from the loop conditional, and only increment agno if we have actually hit the code under the next_ag: target. Cc: stable@vger.kernel.org Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
1e773c49 |
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03-Aug-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: introduce xfs_bulkstat_ag_ichunk Introduce xfs_bulkstat_ag_ichunk() to process inodes in chunk with a pointer to a formatter function that will iget the inode and fill in the appropriate structure. Refactor xfs_bulkstat() with it. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
f3d1e587 |
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24-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: introduce xfs_bulkstat_grab_ichunk From: Jie Liu <jeff.liu@oracle.com> Introduce xfs_bulkstat_grab_ichunk() to look up an inode chunk in where the given inode resides, then grab the record. Update the data for the pointed-to record if the inode was not the last in the chunk and there are some left allocated, return the grabbed inode count on success. Refactor xfs_bulkstat() with it. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
4b8fdfec |
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24-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: introduce xfs_bulkstat_ichunk_ra From: Jie Liu <jeff.liu@oracle.com> Introduce xfs_bulkstat_ichunk_ra() to loop over all clusters in the next inode chunk, then performs readahead if there are any allocated inodes in that cluster. Refactor xfs_bulkstat() with it. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
d4c27348 |
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24-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: fix error handling at xfs_bulkstat From: Jie Liu <jeff.liu@oracle.com> We should not ignore the btree operation errors at xfs_bulkstat() but to propagate them if any. This patch fix two places in this function and the remaining things will be fixed with code refactoring thereafter. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
296dfd7f |
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24-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: remove redundant user buffer count checks at xfs_bulkstat From: Jie Liu <jeff.liu@oracle.com> Remove the redundant user buffer and count checks as it has already been validated at xfs_ioc_bulkstat(). Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
c7cb51dc |
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23-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: fix error handling at xfs_inumbers From: Jie Liu <jeff.liu@oracle.com> To fetch the file system number tables, we currently just ignore the errors and proceed to loop over the next AG or bump agino to the next chunk in case of btree operations failed, that is not properly because those errors might hint us potential file system problems. This patch rework xfs_inumbers() to handle the btree operation errors as well as the loop conditions. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
549fa006 |
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23-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: consolidate xfs_inumbers From: Jie Liu <jeff.liu@oracle.com> Consolidate xfs_inumbers() to make the formatter function return correct error and make the source code looks a bit neat. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
d716f8ee |
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23-Jul-2014 |
Christoph Hellwig <hch@lst.de> |
xfs: remove xfs_bulkstat_single From: Christoph Hellwig <hch@lst.de> xfs_bukstat_one doesn't have any failure case that would go away when called through xfs_bulkstat, so remove the fallback and the now unessecary xfs_bulkstat_single function. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jie Liu <jeff.liu@oracle.com> Signed-off-by: Jie Liu <jeff.liu@oracle.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
8fe65776 |
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23-Jul-2014 |
Jie Liu <jeff.liu@oracle.com> |
xfs: remove redundant stat assignment in xfs_bulkstat_one_int From: Jie Liu <jeff.liu@oracle.com> Remove the redundant BULKSTAT_RV_NOTHING assignment in case of call xfs_iget() failed at xfs_bulkstat_one_int(). Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
2451337d |
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24-Jun-2014 |
Dave Chinner <dchinner@redhat.com> |
xfs: global error sign conversion Convert all the errors the core XFs code to negative error signs like the rest of the kernel and remove all the sign conversion we do in the interface layers. Errors for conversion (and comparison) found via searches like: $ git grep " E" fs/xfs $ git grep "return E" fs/xfs $ git grep " E[A-Z].*;$" fs/xfs Negation points found via searches like: $ git grep "= -[a-z,A-Z]" fs/xfs $ git grep "return -[a-z,A-D,F-Z]" fs/xfs $ git grep " -[a-z].*;" fs/xfs [ with some bits I missed from Brian Foster ] Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
b474c7ae |
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21-Jun-2014 |
Eric Sandeen <sandeen@sandeen.net> |
xfs: Nuke XFS_ERROR macro XFS_ERROR was designed long ago to trap return values, but it's not runtime configurable, it's not consistently used, and we can do similar error trapping with ftrace scripts and triggers from userspace. Just nuke XFS_ERROR and associated bits. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
57bd3dbe |
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24-Apr-2014 |
Brian Foster <bfoster@redhat.com> |
xfs: refactor xfs_ialloc_btree.c to support multiple inobt numbers The introduction of the free inode btree (finobt) requires that xfs_ialloc_btree.c handle multiple trees. Refactor xfs_ialloc_btree.c so the caller specifies the btree type on cursor initialization to prepare for addition of the finobt. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
a2ba07b2 |
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12-Dec-2013 |
Jie Liu <jeff.liu@oracle.com> |
xfs: use xfs_icluster_size_fsb in xfs_bulkstat Use xfs_icluster_size_fsb() in xfs_bulkstat(), make the related variables more meaningful and remove an unused variable nimask from it. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
0f49efd8 |
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12-Dec-2013 |
Jie Liu <jeff.liu@oracle.com> |
xfs: get rid of XFS_INODE_CLUSTER_SIZE macros Get rid of XFS_INODE_CLUSTER_SIZE() macros, use mp->m_inode_cluster_size directly. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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#
a4fbe6ab |
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22-Oct-2013 |
Dave Chinner <dchinner@redhat.com> |
xfs: decouple inode and bmap btree header files Currently the xfs_inode.h header has a dependency on the definition of the BMAP btree records as the inode fork includes an array of xfs_bmbt_rec_host_t objects in it's definition. Move all the btree format definitions from xfs_btree.h, xfs_bmap_btree.h, xfs_alloc_btree.h and xfs_ialloc_btree.h to xfs_format.h to continue the process of centralising the on-disk format definitions. With this done, the xfs inode definitions are no longer dependent on btree header files. The enables a massive culling of unnecessary includes, with close to 200 #include directives removed from the XFS kernel code base. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
239880ef |
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22-Oct-2013 |
Dave Chinner <dchinner@redhat.com> |
xfs: decouple log and transaction headers xfs_trans.h has a dependency on xfs_log.h for a couple of structures. Most code that does transactions doesn't need to know anything about the log, but this dependency means that they have to include xfs_log.h. Decouple the xfs_trans.h and xfs_log.h header files and clean up the includes to be in dependency order. In doing this, remove the direct include of xfs_trans_reserve.h from xfs_trans.h so that we remove the dependency between xfs_trans.h and xfs_mount.h. Hence the xfs_trans.h include can be moved to the indicate the actual dependencies other header files have on it. Note that these are kernel only header files, so this does not translate to any userspace changes at all. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
70a9883c |
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22-Oct-2013 |
Dave Chinner <dchinner@redhat.com> |
xfs: create a shared header file for format-related information All of the buffer operations structures are needed to be exported for xfs_db, so move them all to a common location rather than spreading them all over the place. They are verifying the on-disk format, so while xfs_format.h might be a good place, it is not part of the on disk format. Hence we need to create a new header file that we centralise these related definitions. Start by moving the bffer operations structures, and then also move all the other definitions that have crept into xfs_log_format.h and xfs_format.h as there was no other shared header file to put them in. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
fdd3ccee |
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02-Sep-2013 |
Dave Chinner <dchinner@redhat.com> |
xfs: factor all the kmalloc-or-vmalloc fallback allocations We have quite a few places now where we do: x = kmem_zalloc(large size) if (!x) x = kmem_zalloc_large(large size) and do a similar dance when freeing the memory. kmem_free() already does the correct freeing dance, and kmem_zalloc_large() is only ever called in these constructs, so just factor it all into kmem_zalloc_large() and kmem_free(). Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
a30b0367 |
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02-Sep-2013 |
Dave Chinner <david@fromorbit.com> |
xfs: fix some minor sparse warnings A couple of simple locking annotations and 0 vs NULL warnings. Nothing that changes any code behaviour, just removes build noise. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
9cee4c5b |
|
01-Jul-2013 |
Jie Liu <jeff.liu@oracle.com> |
xfs: clean up unused codes at xfs_bulkstat() There are some unused codes at xfs_bulkstat(): - Variable bp is defined to point to the on-disk inode cluster buffer, but it proved to be of no practical help. - We process the chunks of good inodes which were fetched by iterating btree records from an AG. When processing inodes from each chunk, the code recomputing agbno if run into the first inode of a cluster, however, the agbno is not being used thereafter. This patch tries to clean up those things. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
9cad19d2 |
|
27-Jun-2013 |
Chandra Seetharaman <sekharan@us.ibm.com> |
xfs: Define a new function xfs_is_quota_inode() In preparation for combined pquota/gquota support, define a new function to check if the given inode is a quota inode. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Reviewed-by: Ben Myers <bpm@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
cbb2864a |
|
27-Jun-2013 |
Dave Chinner <dchinner@redhat.com> |
xfs: add pluging for bulkstat readahead I was running some tests on bulkstat on CRC enabled filesystems when I noticed that all the IO being issued was 8k in size, regardless of the fact taht we are issuing sequential 8k buffers for inodes clusters. The IO size should be 16k for 256 byte inodes, and 32k for 512 byte inodes, but this wasn't happening. blktrace showed that there was an explict plug and unplug happening around each readahead IO from _xfs_buf_ioapply, and the unplug was causing the IO to be issued immediately. Hence no opportunity was being given to the elevator to merge adjacent readahead requests and dispatch them as a single IO. Add plugging around the inode chunk readahead dispatch loop in bulkstat to ensure that we don't unplug the queue between adjacent inode buffer readahead IOs and so we get fewer, larger IO requests hitting the storage subsystem for bulkstat. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
1813dd64 |
|
13-Nov-2012 |
Dave Chinner <dchinner@redhat.com> |
xfs: convert buffer verifiers to an ops structure. To separate the verifiers from iodone functions and associate read and write verifiers at the same time, introduce a buffer verifier operations structure to the xfs_buf. This avoids the need for assigning the write verifier, clearing the iodone function and re-running ioend processing in the read verifier, and gets rid of the nasty "b_pre_io" name for the write verifier function pointer. If we ever need to, it will also be easier to add further content specific callbacks to a buffer with an ops structure in place. We also avoid needing to export verifier functions, instead we can simply export the ops structures for those that are needed outside the function they are defined in. This patch also fixes a directory block readahead verifier issue it exposed. This patch also adds ops callbacks to the inode/alloc btree blocks initialised by growfs. These will need more work before they will work with CRCs. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Phil White <pwhite@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
612cfbfe |
|
13-Nov-2012 |
Dave Chinner <dchinner@redhat.com> |
xfs: add pre-write metadata buffer verifier callbacks These verifiers are essentially the same code as the read verifiers, but do not require ioend processing. Hence factor the read verifier functions and add a new write verifier wrapper that is used as the callback. This is done as one large patch for all verifiers rather than one patch per verifier as the change is largely mechanical. This includes hooking up the write verifier via the read verifier function. Hooking up the write verifier for buffers obtained via xfs_trans_get_buf() will be done in a separate patch as that touches code in many different places rather than just the verifier functions. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
|
#
3d3e6f64 |
|
12-Nov-2012 |
Dave Chinner <dchinner@redhat.com> |
xfs: verify btree blocks as they are read from disk Add an btree block verify callback function and pass it into the buffer read functions. Because each different btree block type requires different verification, add a function to the ops structure that is called from the generic code. Also, propagate the verification callback functions through the readahead functions, and into the external bmap and bulkstat inode readahead code that uses the generic btree buffer read functions. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Phil White <pwhite@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
33479e05 |
|
08-Oct-2012 |
Dave Chinner <dchinner@redhat.com> |
xfs: remove xfs_iget.c The inode cache functions remaining in xfs_iget.c can be moved to xfs_icache.c along with the other inode cache functions. This removes all functionality from xfs_iget.c, so the file can simply be removed. This move results in various functions now only having the scope of a single file (e.g. xfs_inode_free()), so clean up all the definitions and exported prototypes in xfs_icache.[ch] and xfs_inode.h appropriately. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
475ee413 |
|
02-Jul-2012 |
Christoph Hellwig <hch@infradead.org> |
xfs: merge xfs_itobp into xfs_imap_to_bp All callers of xfs_imap_to_bp want the dinode pointer, so let's calculate it inside xfs_imap_to_bp. Once that is done xfs_itobp becomes a fairly pointless wrapper which can be replaced with direct calls to xfs_imap_to_bp. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
ad1e95c5 |
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22-Apr-2012 |
Dave Chinner <dchinner@redhat.com> |
xfs: clean up xfs_bit.h includes With the removal of xfs_rw.h and other changes over time, xfs_bit.h is being included in many files that don't actually need it. Clean up the includes as necessary. Also move the only-used-once xfs_ialloc_find_free() static inline function out of a header file that is widely included to reduce the number of needless dependencies on xfs_bit.h. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
5132ba8f |
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21-Mar-2012 |
Dave Chinner <dchinner@redhat.com> |
xfs: don't cache inodes read through bulkstat When we read inodes via bulkstat, we generally only read them once and then throw them away - they never get used again. If we retain them in cache, then it simply causes the working set of inodes and other cached items to be reclaimed just so the inode cache can grow. Avoid this problem by marking inodes read by bulkstat not to be cached and check this flag in .drop_inode to determine whether the inode should be added to the VFS LRU or not. If the inode lookup hits an already cached inode, then don't set the flag. If the inode lookup hits an inode marked with no cache flag, remove the flag and allow it to be cached once the current reference goes away. Inodes marked as not cached will get cleaned up by the background inode reclaim or via memory pressure, so they will still generate some short term cache pressure. They will, however, be reclaimed much sooner and in preference to cache hot inodes. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
8a9c9980 |
|
29-Feb-2012 |
Christoph Hellwig <hch@infradead.org> |
xfs: log timestamp updates Timestamps on regular files are the last metadata that XFS does not update transactionally. Now that we use the delaylog mode exclusively and made the log scode scale extremly well there is no need to bypass that code for timestamp updates. Logging all updates allows to drop a lot of code, and will allow for further performance improvements later on. Note that this patch drops optimized handling of fdatasync - it will be added back in a separate commit. Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
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#
ecb697c1 |
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03-Apr-2011 |
Christoph Hellwig <hch@infradead.org> |
xfs: fix variable set but not used warnings GCC 4.6 now warnings about variables set but not used. Fix the trivially fixable warnings of this sort. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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#
6743099c |
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26-Sep-2010 |
Arkadiusz Mi?kiewicz <arekm@maven.pl> |
xfs: Extend project quotas to support 32bit project ids This patch adds support for 32bit project quota identifiers. On disk format is backward compatible with 16bit projid numbers. projid on disk is now kept in two 16bit values - di_projid_lo (which holds the same position as old 16bit projid value) and new di_projid_hi (takes existing padding) and converts from/to 32bit value on the fly. xfs_admin (for existing fs), mkfs.xfs (for new fs) needs to be used to enable PROJID32BIT support. Signed-off-by: Arkadiusz Miśkiewicz <arekm@maven.pl> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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#
f2d67614 |
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23-Jun-2010 |
Christoph Hellwig <hch@infradead.org> |
xfs: remove xfs_iput xfs_iput is just a small wrapper for xfs_iunlock + IRELE. Having this out of line wrapper means the trace events in those two can't track their caller properly. So just remove the wrapper and opencode the unlock + rele in the few callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
3400777f |
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23-Jun-2010 |
Christoph Hellwig <hch@infradead.org> |
xfs: remove unneeded #include statements Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com>
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#
288699fe |
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23-Jun-2010 |
Christoph Hellwig <hch@infradead.org> |
xfs: drop dmapi hooks Dmapi support was never merged upstream, but we still have a lot of hooks bloating XFS for it, all over the fast pathes of the filesystem. This patch drops over 700 lines of dmapi overhead. If we'll ever get HSM support in mainline at least the namespace events can be done much saner in the VFS instead of the individual filesystem, so it's not like this is much help for future work. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
7b6259e7 |
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23-Jun-2010 |
Dave Chinner <dchinner@redhat.com> |
xfs: remove block number from inode lookup code The block number comes from bulkstat based inode lookups to shortcut the mapping calculations. We ar enot able to trust anything from bulkstat, so drop the block number as well so that the correct lookups and mappings are always done. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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#
1920779e |
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23-Jun-2010 |
Dave Chinner <dchinner@redhat.com> |
xfs: rename XFS_IGET_BULKSTAT to XFS_IGET_UNTRUSTED Inode numbers may come from somewhere external to the filesystem (e.g. file handles, bulkstat information) and so are inherently untrusted. Rename the flag we use for these lookups to make it obvious we are doing a lookup of an untrusted inode number and need to verify it completely before trying to read it from disk. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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#
7dce11db |
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23-Jun-2010 |
Christoph Hellwig <hch@lst.de> |
xfs: always use iget in bulkstat The non-coherent bulkstat versionsthat look directly at the inode buffers causes various problems with performance optimizations that make increased use of just logging inodes. This patch makes bulkstat always use iget, which should be fast enough for normal use with the radix-tree based inode cache introduced a while ago. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com>
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#
07000ee6 |
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04-Mar-2010 |
Dave Chinner <dchinner@redhat.com> |
xfs: return inode fork offset in bulkstat for fsr So that fsr can attempt to get the fork offset of the temporary inode it uses the same as the inode it is defragmenting, pass the fork offset out in the bulkstat information. The bulkstat structure has padding that has always been zeroed, so userspace can tell if this field is set or not by use of the xattr present flag and a non-zero value for the fork offset. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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#
bdfb0430 |
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20-Jan-2010 |
Christoph Hellwig <hch@infradead.org> |
xfs: replace KM_LARGE with explicit vmalloc use We use the KM_LARGE flag to make kmem_alloc and friends use vmalloc if necessary. As we only need this for a few boot/mount time allocations just switch to explicit vmalloc calls there. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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#
1c1c6ebc |
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11-Jan-2010 |
Dave Chinner <david@fromorbit.com> |
xfs: Replace per-ag array with a radix tree The use of an array for the per-ag structures requires reallocation of the array when growing the filesystem. This requires locking access to the array to avoid use after free situations, and the locking is difficult to get right. To avoid needing to reallocate an array, change the per-ag structures to an allocated object per ag and index them using a tree structure. The AGs are always densely indexed (hence the use of an array), but the number supported is 2^32 and lookups tend to be random and hence indexing needs to scale. A simple choice is a radix tree - it works well with this sort of index. This change also removes another large contiguous allocation from the mount/growfs path in XFS. The growing process now needs to change to only initialise the new AGs required for the extra space, and as such only needs to exclusively lock the tree for inserts. The rest of the code only needs to lock the tree while doing lookups, and hence this will remove all the deadlocks that currently occur on the m_perag_lock as it is now an innermost lock. The lock is also changed to a spinlock from a read/write lock as the hold time is now extremely short. To complete the picture, the per-ag structures will need to be reference counted to ensure that we don't free/modify them while they are still in use. This will be done in subsequent patch. Signed-off-by: Dave Chinner <david@fromorbit.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Alex Elder <aelder@sgi.com>
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#
f9581b14 |
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06-Oct-2009 |
Christoph Hellwig <hch@infradead.org> |
xfs: implement ->dirty_inode to fix timestamp handling This is picking up on Felix's repost of Dave's patch to implement a .dirty_inode method. We really need this notification because the VFS keeps writing directly into the inode structure instead of going through methods to update this state. In addition to the long-known atime issue we now also have a caller in VM code that updates c/mtime that way for shared writeable mmaps. And I found another one that no one has noticed in practice in the FIFO code. So implement ->dirty_inode to set i_update_core whenever the inode gets externally dirtied, and switch the c/mtime handling to the same scheme we already use for atime (always picking up the value from the Linux inode). Note that this patch also removes the xfs_synchronize_atime call in xfs_reclaim it was superflous as we already synchronize the time when writing the inode via the log (xfs_inode_item_format) or the normal buffers (xfs_iflush_int). In addition also remove the I_CLEAR check before copying the Linux timestamps - now that we always have the Linux inode available we can always use the timestamps in it. Also switch to just using file_update_time for regular reads/writes - that will get us all optimization done to it for free and make sure we notice early when it breaks. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Felix Blyakher <felixb@sgi.com> Reviewed-by: Alex Elder <aelder@sgi.com> Signed-off-by: Alex Elder <aelder@sgi.com>
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#
21875505 |
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31-Aug-2009 |
Christoph Hellwig <hch@lst.de> |
xfs: rationalize xfs_inobt_lookup* Currenly we have a xfs_inobt_lookup* variant for each comparism direction, and all these get all three fields of the inobt records passed, while the common case is just looking for the inode number and we have only marginally more callers than xfs_inobt_lookup* variants. So opencode a direct call to xfs_btree_lookup for the single case where we need all fields, and replace xfs_inobt_lookup* with a xfs_inobt_looku that just takes the inode number and the direction for all other callers. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com> Signed-off-by: Felix Blyakher <felixb@sgi.com>
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#
2e287a73 |
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31-Aug-2009 |
Christoph Hellwig <hch@lst.de> |
xfs: improve xfs_inobt_get_rec prototype Most callers of xfs_inobt_get_rec need to fill a xfs_inobt_rec_incore_t, and those who don't yet are fine with a xfs_inobt_rec_incore_t, instead of the three individual variables, too. So just change xfs_inobt_get_rec to write the output into a xfs_inobt_rec_incore_t directly. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Alex Elder <aelder@sgi.com> Signed-off-by: Felix Blyakher <felixb@sgi.com>
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#
d96f8f89 |
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01-Jul-2009 |
Eric Sandeen <sandeen@sandeen.net> |
xfs: add more statics & drop some unused functions A lot more functions could be made static, but they need forward declarations; this does some easy ones, and also found a few unused functions in the process. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Felix Blyakher <felixb@sgi.com>
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#
370f0482 |
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01-Jul-2009 |
Eric Sandeen <sandeen@sandeen.net> |
xfs: add more statics & drop some unused functions A lot more functions could be made static, but they need forward declarations; this does some easy ones, and also found a few unused functions in the process. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Felix Blyakher <felixb@sgi.com>
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#
9da096fd |
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29-Mar-2009 |
Malcolm Parsons <malcolm.parsons@gmail.com> |
xfs: fix various typos Signed-off-by: Malcolm Parsons <malcolm.parsons@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de>
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#
8fab451e |
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16-Mar-2009 |
Christoph Hellwig <hch@lst.de> |
xfs: kill vn_atime_* helpers. Two out of three are unused already, and the third is better done open-coded with a comment describing what's going on here. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com>
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#
b6e32227 |
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14-Jan-2009 |
Eric Sandeen <sandeen@sandeen.net> |
[XFS] Remove the rest of the macro-to-function indirections. Remove the last of the macros-defined-to-static-functions. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
9d87c319 |
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14-Jan-2009 |
Eric Sandeen <sandeen@sandeen.net> |
[XFS] Remove the rest of the macro-to-function indirections. Remove the last of the macros-defined-to-static-functions. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
65fbaf24 |
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25-Nov-2008 |
sandeen@sandeen.net <sandeen@sandeen.net> |
[XFS] Fix xfs_bulkstat_one size checks & error handling The 32-bit xfs_blkstat_one handler was failing because a size check checked whether the remaining (32-bit) user buffer was less than the (64-bit) bulkstat buffer, and failed with ENOMEM if so. Move this check into the respective handlers so that they check the correct sizes. Also, the formatters were returning negative errors or positive bytes copied; this was odd in the positive error value world of xfs, and handled wrong by at least some of the callers, which treated the bytes returned as an error value. Move the bytes-used assignment into the formatters. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
2ee4fa5c |
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25-Nov-2008 |
sandeen@sandeen.net <sandeen@sandeen.net> |
[XFS] Make the bulkstat_one compat ioctl handling more sane Currently the compat formatter was handled by passing in "private_data" for the xfs_bulkstat_one formatter, which was really just another formatter... IMHO this got confusing. Instead, just make a new xfs_bulkstat_one_compat formatter for xfs_bulkstat, and call it via a wrapper. Also, don't translate the ioctl nrs into their native counterparts, that just clouds the issue; we're in a compat handler anyway, just switch on the 32-bit cmds. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
b48d8d64 |
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27-Nov-2008 |
Christoph Hellwig <hch@lst.de> |
[XFS] kill the XFS_IMAP_BULKSTAT flag Just pass down the XFS_IGET_* flags all the way down to xfs_imap instead of translating them mid-way. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
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#
92bfc6e7 |
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27-Nov-2008 |
Christoph Hellwig <hch@lst.de> |
[XFS] embededd struct xfs_imap into xfs_inode Most uses of struct xfs_imap are to map and inode to a buffer. To avoid copying around the inode location information we should just embedd a strcut xfs_imap into the xfs_inode. To make sure it doesn't bloat an inode the im_len is changed to a ushort, which is fine as that's what the users exepect anyway. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
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#
51ce16d5 |
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27-Nov-2008 |
Christoph Hellwig <hch@lst.de> |
[XFS] kill XFS_DINODE_VERSION_ defines These names don't add any value at all over just using the numerical values. (First sent on October 9th) Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
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#
81591fe2 |
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27-Nov-2008 |
Christoph Hellwig <hch@lst.de> |
[XFS] kill xfs_dinode_core_t Now that we have a separate xfs_icdinode_t for the in-core inode which gets logged there is no need anymore for the xfs_dinode vs xfs_dinode_core split - the fact that part of the structure gets logged through the inode log item and a small part not can better be described in a comment. All sizeof operations on the dinode_core either really wanted the icdinode and are switched to that one, or had already added the size of the agi unlinked list pointer. Later both will be replaced with helpers once we get the larger CRC-enabled dinode. Removing the data and attribute fork unions also has the advantage that xfs_dinode.h doesn't need to pull in every header under the sun. While we're at it also add some more comments describing the dinode structure. (First sent on October 7th) Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
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#
c679eef0 |
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30-Oct-2008 |
Christoph Hellwig <hch@infradead.org> |
[XFS] stop using xfs_itobp in xfs_bulkstat xfs_bulkstat only wants the dinode, offset and buffer from a given inode number. Instead of using xfs_itobp on a fake inode which is complicated and currently leads to leaks of the security data just use xfs_inotobp which is designed to do exactly the kind of lookup xfs_bulkstat wants. The only thing that's missing in xfs_inotobp is a flags paramter that let's us pass down XFS_IMAP_BULKSTAT, but that can easily added. SGI-PV: 987246 SGI-Modid: xfs-linux-melb:xfs-kern:32397a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
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#
637aa50f |
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29-Oct-2008 |
Christoph Hellwig <hch@infradead.org> |
[XFS] implement generic xfs_btree_increment From: Dave Chinner <dgc@sgi.com> Because this is the first major generic btree routine this patch includes some infrastrucure, first a few routines to deal with a btree block that can be either in short or long form, second xfs_btree_read_buf_block, which is the new central routine to read a btree block given a cursor, and third the new xfs_btree_ptr_addr routine to calculate the address for a given btree pointer record. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32190a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
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#
561f7d17 |
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29-Oct-2008 |
Christoph Hellwig <hch@infradead.org> |
[XFS] split up xfs_btree_init_cursor xfs_btree_init_cursor contains close to little shared code for the different btrees and will get even more non-common code in the future. Split it up into one routine per btree type. Because xfs_btree_dup_cursor needs to call the init routine for a generic btree cursor add a new btree operation vector that contains a dup_cursor method that initializes a new cursor based on an existing one. The btree operations vector is based on an idea and code from Dave Chinner and will grow more entries later during this series. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32176a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
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#
07c8f675 |
|
29-Oct-2008 |
David Chinner <david@fromorbit.com> |
[XFS] Make use of the init-once slab optimisation. To avoid having to initialise some fields of the XFS inode on every allocation, we can use the slab init-once feature to initialise them. All we have to guarantee is that when we free the inode, all it's entries are in the initial state. Add asserts where possible to ensure debug kernels check this initial state before freeing and after allocation. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31925a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
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#
df80c933 |
|
13-Aug-2008 |
Christoph Hellwig <hch@infradead.org> |
[XFS] remove some easy bhv_vnode_t instances In various places we can just move a VFS_I call into the argument list of called functions/macros instead of having a local bhv_vnode_t. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31776a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
e4f75291 |
|
13-Aug-2008 |
David Chinner <david@fromorbit.com> |
[XFS] Kill shouty XFS_ITOV() macro Replace XFS_ITOV() with the new VFS_I() inline. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31724a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
f0e2d93c |
|
19-May-2008 |
Denys Vlasenko <vda.linux@googlemail.com> |
[XFS] Remove unused arg from kmem_free() kmem_free() function takes (ptr, size) arguments but doesn't actually use second one. This patch removes size argument from all callsites. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31050a Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
6a7f422d |
|
22-Apr-2008 |
Christoph Hellwig <hch@infradead.org> |
[XFS] kill di_mode checks after xfs_iget Unless XFS_IGET_CREATE is passed xfs_iget will return ENOENT if it encounters an inode with di_mode == 0. Remove the duplicated checks in the callers. (the log recovery case is not touched for now) SGI-PV: 976035 SGI-Modid: xfs-linux-melb:xfs-kern:30898a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
7b073390 |
|
09-Apr-2008 |
David Chinner <dgc@sgi.com> |
[XFS] xfs_bulkstat_one_dinode() never returns an error. Mark it void. SGI-PV: 980084 SGI-Modid: xfs-linux-melb:xfs-kern:30828a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Niv Sardi <xaiki@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
|
#
a3f74ffb |
|
05-Mar-2008 |
David Chinner <dgc@sgi.com> |
[XFS] Don't block pdflush when writing back inodes When pdflush is writing back inodes, it can get stuck on inode cluster buffers that are currently under I/O. This occurs when we write data to multiple inodes in the same inode cluster at the same time. Effectively, delayed allocation marks the inode dirty during the data writeback. Hence if the inode cluster was flushed during the writeback of the first inode, the writeback of the second inode will block waiting for the inode cluster write to complete before writing it again for the newly dirtied inode. Basically, we want to avoid this from happening so we don't block pdflush and slow down all of writeback. Hence we introduce a non-blocking async inode flush flag that pdflush uses. If this flag is set, we use non-blocking operations (e.g. try locks) whereever we can to avoid blocking or extra I/O being issued. SGI-PV: 970925 SGI-Modid: xfs-linux-melb:xfs-kern:30501a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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#
62118709 |
|
05-Mar-2008 |
Eric Sandeen <sandeen@sandeen.net> |
[XFS] remove shouting-indirection macros from xfs_sb.h Remove macro-to-small-function indirection from xfs_sb.h, and remove some which are completely unused. SGI-PV: 976035 SGI-Modid: xfs-linux-melb:xfs-kern:30528a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Donald Douwsma <donaldd@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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45ba598e |
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06-Dec-2007 |
Christoph Hellwig <hch@infradead.org> |
[XFS] Remove CFORK macros and use code directly in IFORK and DFORK macros. Currently XFS_IFORK_* and XFS_DFORK* are implemented by means of XFS_CFORK* macros. But given that XFS_IFORK_* operates on an xfs_inode that embedds and xfs_icdinode_core and XFS_DFORK_* operates on an xfs_dinode that embedds a xfs_dinode_core one will have to do endian swapping while the other doesn't. Instead of having the current mess with the CFORK macros that have byteswapping and non-byteswapping version (which are inconsistantly named while we're at it) just define each family of the macros to stand by itself and simplify the whole matter. A few direct references to the CFORK variants were cleaned up to use IFORK or DFORK to make this possible. SGI-PV: 971186 SGI-Modid: xfs-linux-melb:xfs-kern:30163a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Tim Shimmin <tes@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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e6a4b37f |
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22-Nov-2007 |
Tim Shimmin <tes@sgi.com> |
[XFS] Remove the BPCSHIFT and NB* based macros from XFS. The BPCSHIFT based macros, btoc*, ctob*, offtoc* and ctooff are either not used or don't need to be used. The NDPP, NDPP, NBBY macros don't need to be used but instead are replaced directly by PAGE_SIZE and PAGE_CACHE_SIZE where appropriate. Initial patch and motivation from Nicolas Kaiser. SGI-PV: 971186 SGI-Modid: xfs-linux-melb:xfs-kern:30096a Signed-off-by: Tim Shimmin <tes@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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c319b58b |
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22-Nov-2007 |
Vlad Apostolov <vapo@sgi.com> |
[XFS] Make xfs_bulkstat() to report unlinked but referenced inodes We need xfs_bulkstat() to report inode stat for inodes with link count zero but reference count non zero. The fix here: http://oss.sgi.com/archives/xfs/2007-09/msg00266.html changed this behavior and made xfs_bulkstat() to filter all unlinked inodes including those that are not destroyed yet but held by reference. The attached patch returns back to the original behavior by marking the on-disk inode buffer "dirty" when di_mode is cleared (at that time both inode link and reference counter are zero). SGI-PV: 972004 SGI-Modid: xfs-linux-melb:xfs-kern:29914a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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cd57e594 |
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22-Nov-2007 |
Lachlan McIlroy <lachlan@sgi.com> |
[XFS] 971064 Various fixups for xfs_bulkstat(). - sanity check for NULL user buffer in xfs_ioc_bulkstat[_compat]() - remove the special case for XFS_IOC_FSBULKSTAT with count == 1. This special case causes bulkstat to fail because the special case uses xfs_bulkstat_single() instead of xfs_bulkstat() and the two functions have different semantics. xfs_bulkstat() will return the next inode after the one supplied while skipping internal inodes (ie quota inodes). xfs_bulkstate_single() will only lookup the inode supplied and return an error if it is an internal inode. - in xfs_bulkstat(), need to initialise 'lastino' to the inode supplied so in cases were we return without examining any inodes the scan wont restart back at zero. - sanity check for valid *ubcountp values. Cannot sanity check for valid ubuffer here because some users of xfs_bulkstat() don't supply a buffer. - checks against 'ubleft' (the space left in the user's buffer) should be against 'statstruct_size' which is the supplied minimum object size. The mixture of checks against statstruct_size and 0 was one of the reasons we were skipping inodes. - if the formatter function returns BULKSTAT_RV_NOTHING and an error and the error is not ENOENT or EINVAL then we need to abort the scan. ENOENT is for inodes that are no longer valid and we just skip them. EINVAL is returned if we try to lookup an internal inode so we skip them too. For a DMF scan if the inode and DMF attribute cannot fit into the space left in the user's buffer it would return ERANGE. We didn't handle this error and skipped the inode. We would continue to skip inodes until one fitted into the user's buffer or we completed the scan. - put back the recalculation of agino (that got removed with the last fix) at the end of the while loop. This is because the code at the start of the loop expects agino to be the last inode examined if it is non-zero. - if we found some inodes but then encountered an error, return success this time and the error next time. If the formatter aborted with ENOMEM we will now return this error but only if we couldn't read any inodes. Previously if we encountered ENOMEM without reading any inodes we returned a zero count and no error which falsely indicated the scan was complete. SGI-PV: 973431 SGI-Modid: xfs-linux-melb:xfs-kern:30089a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: David Chinner <dgc@sgi.com>
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c2cba57e |
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11-Oct-2007 |
Lachlan McIlroy <lachlan@sgi.com> |
[XFS] This fix prevents bulkstat from spinning in an infinite loop. Here 'agino' increments through the inodes in an allocation group. At the end of the innermost 'for' loop it will hold the value of the next inode to look at (ie the first inode in the next cluster/chunk). Assigning 'lastino' to 'agino' resets it to the last inode in the last inode cluster we just looked at. This causes us to look up the very same cluster and examine all the inodes all over again, and again, and again... We also want to set 'lastino' for the cases when we're not interested in the inode so that the next call to bulkstat won't re-examine the same uninteresting inodes. SGI-PV: 971064 SGI-Modid: xfs-linux-melb:xfs-kern:29840a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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859d7182 |
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11-Oct-2007 |
Vlad Apostolov <vapo@sgi.com> |
[XFS] get_bulkall() could return incorrect inode state In the following scenario xfs_bulkstat() returns incorrect stale inode state: 1. File_A is created and its inode synced to disk. 2. File_A is unlinked and doesn't exist anymore. 3. Filesystem sync is invoked. 4. File_B is created. File_B happens to reclaim File_A's inode. 5. xfs_bulkstat() is called and detects File_B but reports the incorrect File_A inode state. Explanation for the incorrect inode state is that inodes are not immediately synced on file create for performance reasons. This leaves the on-disk inode buffer uninitialized (or with old state from a previous generation inode) and this is what xfs_bulkstat() would report. The patch marks the on-disk inode buffer "dirty" on unlink. When the inode is reclaimed (by a new file create), xfs_bulkstat() would filter this inode by the "dirty" mark. Once the inode is flushed to disk, the on-disk buffer "dirty" mark is automatically removed and a following xfs_bulkstat() would return the correct inode state. Marking the on-disk inode buffer "dirty" on unlink is achieved by setting the on-disk di_nlink field to 0. Note that the in-core di_nlink has already been set to 0 and a corresponding transaction logged by xfs_droplink(). This is an exception from the rule that any on-disk inode buffer changes has to be followed by a disk write (inode flush). Synchronizing the in-core to on-disk di_nlink values in advance (before the actual inode flush to disk) should be fine in this case because the inode is already unlinked and it would never change its di_nlink again for this inode generation. SGI-PV: 970842 SGI-Modid: xfs-linux-melb:xfs-kern:29757a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Alex Elder <aelder@sgi.com> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Mark Goodwin <markgw@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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347d1c01 |
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27-Aug-2007 |
Christoph Hellwig <hch@infradead.org> |
[XFS] dinode endianess annotations Biggest bit is duplicating the dinode structure so we have one annotated for native endianess and one for disk endianess. The other significant change is that xfs_xlate_dinode_core is split into one helper per direction to allow for proper annotations, everything else is trivial. As a sidenode splitting out the incore dinode means we can move it into xfs_inode.h in a later patch and severely improving on the include hell in xfs. SGI-PV: 968563 SGI-Modid: xfs-linux-melb:xfs-kern:29476a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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faa63e95 |
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10-Jul-2007 |
Michal Marek <mmarek@suse.cz> |
[XFS] Fix XFS_IOC_FSBULKSTAT{,_SINGLE} & XFS_IOC_FSINUMBERS in compat mode * 32bit struct xfs_fsop_bulkreq has different size and layout of members, no matter the alignment. Move the code out of the #else branch (why was it there in the first place?). Define _32 variants of the ioctl constants. * 32bit struct xfs_bstat is different because of time_t and on i386 because of different padding. Make xfs_bulkstat_one() accept a custom "output formatter" in the private_data argument which takes care of the xfs_bulkstat_one_compat() that takes care of the different layout in the compat case. * i386 struct xfs_inogrp has different padding. Add a similar "output formatter" mecanism to xfs_inumbers(). SGI-PV: 967354 SGI-Modid: xfs-linux-melb:xfs-kern:29102a Signed-off-by: Michal Marek <mmarek@suse.cz> Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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59c51591 |
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09-May-2007 |
Michael Opdenacker <michael@free-electrons.com> |
Fix occurrences of "the the " Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
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6e73b418 |
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27-Sep-2006 |
Vlad Apostolov <vapo@sgi.com> |
[XFS] 955947: Infinite loop in xfs_bulkstat() on formatter() error SGI-PV: 955947 SGI-Modid: xfs-linux-melb:xfs-kern:26986a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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6f1f2168 |
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27-Sep-2006 |
Vlad Apostolov <vapo@sgi.com> |
[XFS] pv 956241, author: nathans, rv: vapo - make ino validation checks consistent in bulkstat SGI-PV: 956241 SGI-Modid: xfs-linux-melb:xfs-kern:26984a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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f273ab84 |
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27-Sep-2006 |
David Chinner <dgc@sgi.com> |
[XFS] Really fix use after free in xfs_iunpin. The previous attempts to fix the linux inode use-after-free in xfs_iunpin simply made the problem harder to hit. We actually need complete exclusion between xfs_reclaim and xfs_iunpin, as well as ensuring that the i_flags are consistent during both of these functions. Introduce a new spinlock for exclusion and the i_flags, and fix up xfs_iunpin to use igrab before marking the inode dirty. SGI-PV: 952967 SGI-Modid: xfs-linux-melb:xfs-kern:26964a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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215101c3 |
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27-Sep-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Fix kmem_zalloc_greedy warnings on 64 bit platforms. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26907a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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e132f54c |
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27-Sep-2006 |
Vlad Apostolov <vapo@sgi.com> |
[XFS] pv 955157, rv bnaujok - break the loop on EFAULT formatter() error SGI-PV: 955157 SGI-Modid: xfs-linux-melb:xfs-kern:26869a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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22de606a |
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27-Sep-2006 |
Vlad Apostolov <vapo@sgi.com> |
[XFS] pv 955157, rv bnaujok - break the loop on formatter() error SGI-PV: 955157 SGI-Modid: xfs-linux-melb:xfs-kern:26866a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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77e4635a |
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27-Sep-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Add a greedy allocation interface, allocating within a min/max size range. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26803a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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745b1f47 |
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27-Sep-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Remove last bulkstat false-positives with debug kernels. SGI-PV: 953819 SGI-Modid: xfs-linux-melb:xfs-kern:26628a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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bb3c7d29 |
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27-Sep-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Increase the size of the buffer holding the local inode cluster list, to increase our potential readahead window and in turn improve bulkstat performance. SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26607a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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26275093 |
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27-Sep-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Drop unneeded endian conversion in bulkstat and start readahead for batches of inode cluster buffers at once, before any blocking reads are issued. SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26606a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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8b56f083 |
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27-Sep-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Rework DMAPI bulkstat calls in such a way that we can directly extract inline attributes out of the bulkstat buffer (for that case), rather than using an (extremely expensive for large icount filesystems) iget for fetching attrs. SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26602a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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61a25848 |
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27-Sep-2006 |
Christoph Hellwig <hch@lst.de> |
[XFS] endianess annotations for xfs_inobt_rec_t / xfs_inobt_key_t SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26556a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
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f6c2d1fa |
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19-Jun-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Remove version 1 directory code. Never functioned on Linux, just pure bloat. SGI-PV: 952969 SGI-Modid: xfs-linux-melb:xfs-kern:26251a Signed-off-by: Nathan Scott <nathans@sgi.com>
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67fcaa73 |
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09-Jun-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Resolve a namespace collision on vnode/vnodeops for FreeBSD porters. SGI-PV: 953338 SGI-Modid: xfs-linux-melb:xfs-kern:26107a Signed-off-by: Nathan Scott <nathans@sgi.com>
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9c48876a |
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08-Jun-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Remove dead code from come bulkstat paths. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26102a Signed-off-by: Nathan Scott <nathans@sgi.com>
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c41564b5 |
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28-Mar-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] We really suck at spulling. Thanks to Chris Pascoe for fixing all these typos. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:25539a Signed-off-by: Nathan Scott <nathans@sgi.com>
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b12dd342 |
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16-Mar-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Fix an infinite loop issue in bulkstat when a corrupt inode is detected. Thanks to Roger Willcocks. SGI-PV: 951054 SGI-Modid: xfs-linux-melb:xfs-kern:25477a Signed-off-by: Nathan Scott <nathans@sgi.com>
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ca5ccbf9 |
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11-Jan-2006 |
Nathan Scott <nathans@sgi.com> |
[XFS] Fix some build fallout from atime changes. SGI-PV: 946679 SGI-Modid: xfs-linux-melb:xfs-kern:24899a Signed-off-by: Nathan Scott <nathans@sgi.com>
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42fe2b1f |
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10-Jan-2006 |
Christoph Hellwig <hch@sgi.com> |
[XFS] fix, speedup and simplify atime handling let the VFS handle atime updates and only sync back to the xfs inode when nessecary SGI-PV: 946679 SGI-Modid: xfs-linux-melb:xfs-kern:203362a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
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16259e7d |
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01-Nov-2005 |
Christoph Hellwig <hch@sgi.com> |
[XFS] Endianess annotations for various allocator data structures SGI-PV: 943272 SGI-Modid: xfs-linux:xfs-kern:201006a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
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7b718769 |
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01-Nov-2005 |
Nathan Scott <nathans@sgi.com> |
[XFS] Update license/copyright notices to match the prefered SGI boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
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a844f451 |
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01-Nov-2005 |
Nathan Scott <nathans@sgi.com> |
[XFS] Remove xfs_macros.c, xfs_macros.h, rework headers a whole lot. SGI-PV: 943122 SGI-Modid: xfs-linux:xfs-kern:23901a Signed-off-by: Nathan Scott <nathans@sgi.com>
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1da177e4 |
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16-Apr-2005 |
Linus Torvalds <torvalds@ppc970.osdl.org> |
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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