Btrfs: add missing compression property remove in btrfs_ioctl_setflags
The behaviour of a 'chattr -c' consists of getting the current flags, clearing the FS_COMPR_FL bit and then sending the result to the set flags ioctl - this means the bit FS_NOCOMP_FL isn't set in the flags passed to the ioctl. This results in the compression property not being cleared from the inode - it was cleared only if the bit FS_NOCOMP_FL was set in the received flags. Reproducer: $ mkfs.btrfs -f /dev/sdd $ mount /dev/sdd /mnt && cd /mnt $ mkdir a $ chattr +c a $ touch a/file $ lsattr a/file --------c------- a/file $ chattr -c a $ touch a/file2 $ lsattr a/file2 --------c------- a/file2 $ lsattr -d a ---------------- a Reported-by: NAndreas Schneider <asn@cryptomilk.org> Signed-off-by: NFilipe Manana <fdmanana@suse.com> Signed-off-by: NChris Mason <clm@fb.com>
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