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| author | Omar Sandoval <osandov@fb.com> | 2017-01-25 17:06:39 -0800 |
|---|---|---|
| committer | Chris Mason <clm@fb.com> | 2017-01-26 15:48:55 -0800 |
| commit | 1fdf41941b8010691679638f8d0c8d08cfee7726 (patch) | |
| tree | a30a3e78422bb68feae6e32ad13db1327bc95a67 /fs | |
| parent | 67ade058ef2c65a3e56878af9c293ec76722a2e5 (diff) | |
| download | linux-1fdf41941b8010691679638f8d0c8d08cfee7726.tar.gz linux-1fdf41941b8010691679638f8d0c8d08cfee7726.tar.bz2 linux-1fdf41941b8010691679638f8d0c8d08cfee7726.zip | |
Btrfs: disable xattr operations on subvolume directories
When you snapshot a subvolume containing a subvolume, you get a
placeholder directory where the subvolume would be. These directory
inodes have ->i_ops set to btrfs_dir_ro_inode_operations. Previously,
these i_ops didn't include the xattr operation callbacks. The conversion
to xattr_handlers missed this case, leading to bogus attempts to set
xattrs on these inodes. This manifested itself as failures when running
delayed inodes.
To fix this, clear IOP_XATTR in ->i_opflags on these inodes.
Fixes: 6c6ef9f26e59 ("xattr: Stop calling {get,set,remove}xattr inode operations")
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Reported-by: Chris Murphy <lists@colorremedies.com>
Tested-by: Chris Murphy <lists@colorremedies.com>
Cc: <stable@vger.kernel.org> # 4.9.x
Signed-off-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: Chris Mason <clm@fb.com>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/btrfs/inode.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index e2b961e20ec1..16694325a449 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5718,6 +5718,7 @@ static struct inode *new_simple_dir(struct super_block *s, inode->i_ino = BTRFS_EMPTY_SUBVOL_DIR_OBJECTID; inode->i_op = &btrfs_dir_ro_inode_operations; + inode->i_opflags &= ~IOP_XATTR; inode->i_fop = &simple_dir_operations; inode->i_mode = S_IFDIR | S_IRUGO | S_IWUSR | S_IXUGO; inode->i_mtime = current_time(inode); |