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e9e62243 |
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02-Apr-2024 |
David Howells <dhowells@redhat.com> |
cifs: Fix caching to try to do open O_WRONLY as rdwr on server When we're engaged in local caching of a cifs filesystem, we cannot perform caching of a partially written cache granule unless we can read the rest of the granule. This can result in unexpected access errors being reported to the user. Fix this by the following: if a file is opened O_WRONLY locally, but the mount was given the "-o fsc" flag, try first opening the remote file with GENERIC_READ|GENERIC_WRITE and if that returns -EACCES, try dropping the GENERIC_READ and doing the open again. If that last succeeds, invalidate the cache for that file as for O_DIRECT. Fixes: 70431bfd825d ("cifs: Support fscache indexing rewrite") Signed-off-by: David Howells <dhowells@redhat.com> cc: Steve French <sfrench@samba.org> cc: Shyam Prasad N <nspmangalore@gmail.com> cc: Rohith Surabattula <rohiths.msft@gmail.com> cc: Jeff Layton <jlayton@kernel.org> cc: linux-cifs@vger.kernel.org cc: netfs@lists.linux.dev cc: linux-fsdevel@vger.kernel.org Signed-off-by: Steve French <stfrench@microsoft.com>
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e9e9fbeb |
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23-Mar-2024 |
Steve French <stfrench@microsoft.com> |
smb3: add trace event for mknod Add trace points to help debug mknod and mkfifo: smb3_mknod_done smb3_mknod_enter smb3_mknod_err Example output: TASK-PID CPU# ||||| TIMESTAMP FUNCTION | | | ||||| | | mkfifo-6163 [003] ..... 960.425558: smb3_mknod_enter: xid=12 sid=0xb55130f6 tid=0x46e6241c path=\fifo1 mkfifo-6163 [003] ..... 960.432719: smb3_mknod_done: xid=12 sid=0xb55130f6 tid=0x46e6241c Reviewed-by: Bharath SM <bharathsm@microsoft.com> Reviewed-by: Meetakshi Setiya <msetiya@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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102466f3 |
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25-Nov-2023 |
Paulo Alcantara <pc@manguebit.com> |
smb: client: allow creating special files via reparse points Add support for creating special files (e.g. char/block devices, sockets, fifos) via NFS reparse points on SMB2+, which are fully supported by most SMB servers and documented in MS-FSCC. smb2_get_reparse_inode() creates the file with a corresponding reparse point buffer set in @iov through a single roundtrip to the server. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202311260746.HOJ039BV-lkp@intel.com/ Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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0a049935 |
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16-Aug-2023 |
Paulo Alcantara <pc@manguebit.com> |
smb: client: get rid of dfs naming in automount code Automount code will handle both DFS links and reparse mount points. Also, get rid of BUG_ON() in cifs_release_automount_timer() while we're at it. Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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38c8a9a5 |
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21-May-2023 |
Steve French <stfrench@microsoft.com> |
smb: move client and server files to common directory fs/smb Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko and helper modules) to new fs/smb subdirectory: fs/cifs --> fs/smb/client fs/ksmbd --> fs/smb/server fs/smbfs_common --> fs/smb/common Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com>
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