miscfs/deadfs/deadfs.h: New home for deadfs-related externs.

XXX regen sys/kern/vnode_if.c and the others

Make dead vfs ops "vfs_statvfs" and "vfs_vptofh" return EOPNOTSUPP.
Both operations may originate from (possible dead) vnodes.

Reported-by: syzbot+eceb203d44457742be3b@syzkaller.appspotmail.com

Remove now unused VV_LOCKSWORK, all file systems support locking.

Remove unused predicates vn_locked() and vn_anylocked().

Welcome to 9.99.95

Switch spec_vnodeop vector to real vnode locking, VV_LOCKSWORK now.

Add "void *extra" argument to vcache_new() so a file system may
pass more information about the file to create.

Welcome to 8.99.30

branches: 1.8.2; 1.8.4;
No need to cache anonymous device vnodes, they will never be looked up.

Set key to (dead_rootmount, 0, NULL) and add assertions.

branches: 1.7.10;
Unfortunately MFS uses v_data of its anonymous device vnode so
it cannot be used as vcache key. Use v_interlock as key ...

Redo previous again, v_specnode is invariant but not unique.

Set "vp->v_data = vp" and use v_data as key.

Use the address of vp->v_specnode as vcache key. It is invariant
over the lifetime of the vnode.

The previous worked by luck, it took the first sizeof(void *) bytes
of struct vnode as key.

Resolves CID 1308957: wrong sizeof()

Add a vfs_newvnode() method to deadfs and use it to create
anonymous device vnodes with bdevvp() and cdevvp().

Implement spec_inactive() and spec_reclaim() to handle these nodes.

Use VFS_PROTOS() for deadfs. Rename dead_mount to dead_rootmount.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

Currently dead vnodes still reside on the vnodelist of the file system
they have been removed from.

Create a "dead mount" that takes dead vnodes until they get freed.

Discussed on tech-kern.

Make dead vfs ops "vfs_statvfs" and "vfs_vptofh" return EOPNOTSUPP.
Both operations may originate from (possible dead) vnodes.

Reported-by: syzbot+eceb203d44457742be3b@syzkaller.appspotmail.com

Remove now unused VV_LOCKSWORK, all file systems support locking.

Remove unused predicates vn_locked() and vn_anylocked().

Welcome to 9.99.95

Switch spec_vnodeop vector to real vnode locking, VV_LOCKSWORK now.

Add "void *extra" argument to vcache_new() so a file system may
pass more information about the file to create.

Welcome to 8.99.30

branches: 1.8.2; 1.8.4;
No need to cache anonymous device vnodes, they will never be looked up.

Set key to (dead_rootmount, 0, NULL) and add assertions.

branches: 1.7.10;
Unfortunately MFS uses v_data of its anonymous device vnode so
it cannot be used as vcache key. Use v_interlock as key ...

Redo previous again, v_specnode is invariant but not unique.

Set "vp->v_data = vp" and use v_data as key.

Use the address of vp->v_specnode as vcache key. It is invariant
over the lifetime of the vnode.

The previous worked by luck, it took the first sizeof(void *) bytes
of struct vnode as key.

Resolves CID 1308957: wrong sizeof()

Add a vfs_newvnode() method to deadfs and use it to create
anonymous device vnodes with bdevvp() and cdevvp().

Implement spec_inactive() and spec_reclaim() to handle these nodes.

Use VFS_PROTOS() for deadfs. Rename dead_mount to dead_rootmount.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

Currently dead vnodes still reside on the vnodelist of the file system
they have been removed from.

Create a "dead mount" that takes dead vnodes until they get freed.

Discussed on tech-kern.

Remove now unused VV_LOCKSWORK, all file systems support locking.

Remove unused predicates vn_locked() and vn_anylocked().

Welcome to 9.99.95

Switch spec_vnodeop vector to real vnode locking, VV_LOCKSWORK now.

Add "void *extra" argument to vcache_new() so a file system may
pass more information about the file to create.

Welcome to 8.99.30

branches: 1.8.2; 1.8.4;
No need to cache anonymous device vnodes, they will never be looked up.

Set key to (dead_rootmount, 0, NULL) and add assertions.

branches: 1.7.10;
Unfortunately MFS uses v_data of its anonymous device vnode so
it cannot be used as vcache key. Use v_interlock as key ...

Redo previous again, v_specnode is invariant but not unique.

Set "vp->v_data = vp" and use v_data as key.

Use the address of vp->v_specnode as vcache key. It is invariant
over the lifetime of the vnode.

The previous worked by luck, it took the first sizeof(void *) bytes
of struct vnode as key.

Resolves CID 1308957: wrong sizeof()

Add a vfs_newvnode() method to deadfs and use it to create
anonymous device vnodes with bdevvp() and cdevvp().

Implement spec_inactive() and spec_reclaim() to handle these nodes.

Use VFS_PROTOS() for deadfs. Rename dead_mount to dead_rootmount.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

Currently dead vnodes still reside on the vnodelist of the file system
they have been removed from.

Create a "dead mount" that takes dead vnodes until they get freed.

Discussed on tech-kern.

Add "void *extra" argument to vcache_new() so a file system may
pass more information about the file to create.

Welcome to 8.99.30

branches: 1.8.2;
No need to cache anonymous device vnodes, they will never be looked up.

Set key to (dead_rootmount, 0, NULL) and add assertions.

branches: 1.7.10;
Unfortunately MFS uses v_data of its anonymous device vnode so
it cannot be used as vcache key. Use v_interlock as key ...

Redo previous again, v_specnode is invariant but not unique.

Set "vp->v_data = vp" and use v_data as key.

Use the address of vp->v_specnode as vcache key. It is invariant
over the lifetime of the vnode.

The previous worked by luck, it took the first sizeof(void *) bytes
of struct vnode as key.

Resolves CID 1308957: wrong sizeof()

Add a vfs_newvnode() method to deadfs and use it to create
anonymous device vnodes with bdevvp() and cdevvp().

Implement spec_inactive() and spec_reclaim() to handle these nodes.

Use VFS_PROTOS() for deadfs. Rename dead_mount to dead_rootmount.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

Currently dead vnodes still reside on the vnodelist of the file system
they have been removed from.

Create a "dead mount" that takes dead vnodes until they get freed.

Discussed on tech-kern.

No need to cache anonymous device vnodes, they will never be looked up.

Set key to (dead_rootmount, 0, NULL) and add assertions.

Unfortunately MFS uses v_data of its anonymous device vnode so
it cannot be used as vcache key. Use v_interlock as key ...

Redo previous again, v_specnode is invariant but not unique.

Set "vp->v_data = vp" and use v_data as key.

Use the address of vp->v_specnode as vcache key. It is invariant
over the lifetime of the vnode.

The previous worked by luck, it took the first sizeof(void *) bytes
of struct vnode as key.

Resolves CID 1308957: wrong sizeof()

Add a vfs_newvnode() method to deadfs and use it to create
anonymous device vnodes with bdevvp() and cdevvp().

Implement spec_inactive() and spec_reclaim() to handle these nodes.

Use VFS_PROTOS() for deadfs. Rename dead_mount to dead_rootmount.

branches: 1.2.4; 1.2.6; 1.2.10; 1.2.12;
Change all vfsops to use C99 designated initializers.

No functional changes intended.

Currently dead vnodes still reside on the vnodelist of the file system
they have been removed from.

Create a "dead mount" that takes dead vnodes until they get freed.

Discussed on tech-kern.