Btrfs: add statx support
Return enhanced file attributes from the btrfs, including:
(1). inode creation time as stx_btime, and
(2). Certain BTRFS_INODE_xxx flags are mapped to stx_attributes flags.
Example output:
[root@localhost ~]# cat t.sh
touch t
chattr +aic t
~/linux/samples/statx/test-statx t
chattr -aic t
touch t
echo "========================================"
~/linux/samples/statx/test-statx t
/bin/rm t
[root@localhost ~]# ./t.sh
statx(t) = 0
results=fff
Size: 0 Blocks: 0 IO Block: 4096 regular file
Device: 00:1c Inode: 63962 Links: 1
Access: (0644/-rw-r--r--) Uid: 0 Gid: 0
Access: 2017-05-11 16:03:13.999856591-0700
Modify: 2017-05-11 16:03:13.999856591-0700
Change: 2017-05-11 16:03:14.000856663-0700
Birth: 2017-05-11 16:03:13.999856591-0700
Attributes: 0000000000000034 (........ ........ ........ ........ ........ ........ ........ .-ai.c..)
========================================
statx(t) = 0
results=fff
Size: 0 Blocks: 0 IO Block: 4096 regular file
Device: 00:1c Inode: 63962 Links: 1
Access: (0644/-rw-r--r--) Uid: 0 Gid: 0
Access: 2017-05-11 16:03:14.006857097-0700
Modify: 2017-05-11 16:03:14.006857097-0700
Change: 2017-05-11 16:03:14.006857097-0700
Birth: 2017-05-11 16:03:13.999856591-0700
Attributes: 0000000000000000 (........ ........ ........ ........ ........ ........ ........ .---.-..)
[root@localhost ~]#
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Yonghong Song <yhs@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
1 file changed