diff options
| author | Paulo Alcantara <pc@manguebit.com> | 2023-08-17 17:34:09 +0200 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2023-08-20 23:05:50 +0200 |
| commit | a18280e7fdea1f2f0736c45f9fee27eccd3998ae (patch) | |
| tree | a6650aa7c8f70dc1146994a4ff6e01e5806743f9 /fs/smb/client/readdir.c | |
| parent | smb: client: query reparse points in older dialects (diff) | |
| download | linux-a18280e7fdea1f2f0736c45f9fee27eccd3998ae.tar.xz linux-a18280e7fdea1f2f0736c45f9fee27eccd3998ae.zip | |
smb: cilent: set reparse mount points as automounts
By doing so we can selectively mark those submounts as 'noserverino'
rather than whole mount and thus avoiding inode collisions in them.
Consider a "test" SMB share that has two mounted NTFS volumes
(vol0 & vol1) inside it.
* Before patch
$ mount.cifs //srv/test /mnt/1 -o ...,serverino
$ ls -li /mnt/1/vol0
total 1
281474976710693 drwxr-xr-x 2 root root 0 Jul 15 00:23 $RECYCLE.BIN
281474976710696 drwxr-xr-x 2 root root 0 Jul 18 18:23 System Volume...
281474976710699 -rwxr-xr-x 1 root root 0 Aug 14 21:53 f0
281474976710700 -rwxr-xr-x 1 root root 0 Aug 15 18:52 f2
281474976710698 drwxr-xr-x 2 root root 0 Aug 12 19:39 foo
281474976710692 -rwxr-xr-x 1 root root 5 Aug 4 21:18 vol0_f0.txt
$ ls -li /mnt/1/vol1
total 0
281474976710693 drwxr-xr-x 2 root root 0 Jul 15 00:23 $RECYCLE.BIN
281474976710696 drwxr-xr-x 2 root root 0 Jul 18 18:23 System Volume...
281474976710698 drwxr-xr-x 2 root root 0 Aug 12 19:39 bar
281474976710699 -rwxr-xr-x 1 root root 0 Aug 14 22:03 f0
281474976710700 -rwxr-xr-x 1 root root 0 Aug 14 22:52 f1
281474976710692 -rwxr-xr-x 1 root root 0 Jul 15 00:23 vol1_f0.txt
* After patch
$ mount.cifs //srv/test /mnt/1 -o ...,serverino
$ ls -li /mnt/1/vol0
total 1
590 drwxr-xr-x 2 root root 0 Jul 15 00:23 $RECYCLE.BIN
594 drwxr-xr-x 2 root root 0 Jul 18 18:23 System Volume Information
591 -rwxr-xr-x 1 root root 0 Aug 14 21:53 f0
592 -rwxr-xr-x 1 root root 0 Aug 15 18:52 f2
593 drwxr-xr-x 2 root root 0 Aug 12 19:39 foo
595 -rwxr-xr-x 1 root root 5 Aug 4 21:18 vol0_f0.txt
$ ls -li /mnt/1/vol1
total 0
596 drwxr-xr-x 2 root root 0 Jul 15 00:23 $RECYCLE.BIN
600 drwxr-xr-x 2 root root 0 Jul 18 18:23 System Volume Information
597 drwxr-xr-x 2 root root 0 Aug 12 19:39 bar
598 -rwxr-xr-x 1 root root 0 Aug 14 22:03 f0
599 -rwxr-xr-x 1 root root 0 Aug 14 22:52 f1
601 -rwxr-xr-x 1 root root 0 Jul 15 00:23 vol1_f0.txt
Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to '')
| -rw-r--r-- | fs/smb/client/readdir.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/smb/client/readdir.c b/fs/smb/client/readdir.c index 59bf542d5211..47fc22de8d20 100644 --- a/fs/smb/client/readdir.c +++ b/fs/smb/client/readdir.c @@ -143,6 +143,7 @@ static bool reparse_file_needs_reval(const struct cifs_fattr *fattr) case IO_REPARSE_TAG_DFSR: case IO_REPARSE_TAG_SYMLINK: case IO_REPARSE_TAG_NFS: + case IO_REPARSE_TAG_MOUNT_POINT: case 0: return true; } |