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| author | Yonghong Song <yhs@fb.com> | 2017-05-12 15:07:43 -0700 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-06-19 18:26:01 +0200 |
| commit | 04a87e3472828f769a93655d7c64a27573bdbc2c (patch) | |
| tree | 81836f9e3f40a7fd3a58f7c71f66fe00d687c1d0 /fs/btrfs/inode.c | |
| parent | 036b0217ade892066dcab6afc5de22b6791ef0ef (diff) | |
| download | op-kernel-dev-04a87e3472828f769a93655d7c64a27573bdbc2c.zip op-kernel-dev-04a87e3472828f769a93655d7c64a27573bdbc2c.tar.gz | |
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>
Diffstat (limited to 'fs/btrfs/inode.c')
| -rw-r--r-- | fs/btrfs/inode.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 222d33d..6b8d341 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -9563,6 +9563,24 @@ static int btrfs_getattr(const struct path *path, struct kstat *stat, u64 delalloc_bytes; struct inode *inode = d_inode(path->dentry); u32 blocksize = inode->i_sb->s_blocksize; + u32 bi_flags = BTRFS_I(inode)->flags; + + stat->result_mask |= STATX_BTIME; + stat->btime.tv_sec = BTRFS_I(inode)->i_otime.tv_sec; + stat->btime.tv_nsec = BTRFS_I(inode)->i_otime.tv_nsec; + if (bi_flags & BTRFS_INODE_APPEND) + stat->attributes |= STATX_ATTR_APPEND; + if (bi_flags & BTRFS_INODE_COMPRESS) + stat->attributes |= STATX_ATTR_COMPRESSED; + if (bi_flags & BTRFS_INODE_IMMUTABLE) + stat->attributes |= STATX_ATTR_IMMUTABLE; + if (bi_flags & BTRFS_INODE_NODUMP) + stat->attributes |= STATX_ATTR_NODUMP; + + stat->attributes_mask |= (STATX_ATTR_APPEND | + STATX_ATTR_COMPRESSED | + STATX_ATTR_IMMUTABLE | + STATX_ATTR_NODUMP); generic_fillattr(inode, stat); stat->dev = BTRFS_I(inode)->root->anon_dev; |
