xfs: add minimum file size filtering to eofblocks scan
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>
diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h
index a19f9b2..6dda3f9 100644
--- a/fs/xfs/xfs_fs.h
+++ b/fs/xfs/xfs_fs.h
@@ -350,7 +350,8 @@
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 @@
#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)
/*
diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 3290890..906e6dc 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -1215,8 +1215,15 @@
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);