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xfs: add minimum file size filtering to eofblocks scan

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Support minimum file size filtering in the eofblocks scan. The
caller must set the XFS_EOF_FLAGS_MINFILESIZE flags bit and minimum
file size value in bytes.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Brian Foster 2012-11-07 12:21:14 -05:00 committed by Ben Myers
parent 1b5560488d
commit 00ca79a04b
2 changed files with 14 additions and 4 deletions
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7
fs/xfs/xfs_fs.h
View File

@ -350,7 +350,8 @@ struct xfs_eofblocks {
gid_t eof_gid;
prid_t eof_prid;
__u32 pad32;
__u64 pad64[13];
__u64 eof_min_file_size;
__u64 pad64[12];
};
/* eof_flags values */
@ -358,11 +359,13 @@ struct xfs_eofblocks {
#define XFS_EOF_FLAGS_UID (1 << 1) /* filter by uid */
#define XFS_EOF_FLAGS_GID (1 << 2) /* filter by gid */
#define XFS_EOF_FLAGS_PRID (1 << 3) /* filter by project id */
#define XFS_EOF_FLAGS_MINFILESIZE (1 << 4) /* filter by min file size */
#define XFS_EOF_FLAGS_VALID \
(XFS_EOF_FLAGS_SYNC | \
XFS_EOF_FLAGS_UID | \
XFS_EOF_FLAGS_GID | \
XFS_EOF_FLAGS_PRID)
XFS_EOF_FLAGS_PRID | \
XFS_EOF_FLAGS_MINFILESIZE)
/*

11
fs/xfs/xfs_icache.c
View File

@ -1215,8 +1215,15 @@ xfs_inode_free_eofblocks(
mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_DIRTY))
return 0;
if (eofb && !xfs_inode_match_id(ip, eofb))
return 0;
if (eofb) {
if (!xfs_inode_match_id(ip, eofb))
return 0;
/* skip the inode if the file size is too small */
if (eofb->eof_flags & XFS_EOF_FLAGS_MINFILESIZE &&
XFS_ISIZE(ip) < eofb->eof_min_file_size)
return 0;
}
ret = xfs_free_eofblocks(ip->i_mount, ip, true);