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>

1 files changed, 9 insertions, 2 deletions

diff --git a/fs/xfs/xfs_icache.c b/fs/xfs/xfs_icache.c
index 32908909815e..906e6dcd2c55 100644
--- a/fs/xfs/xfs_icache.c
+++ b/fs/xfs/xfs_icache.c
@@ -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);