xfs: support multiple inode id filtering in eofblocks scan

Enhance the eofblocks scan code to filter based on multiply specified
inode id values. When multiple inode id values are specified, only
inodes that match all id values are selected.
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>

fs/xfs/xfs_icache.c

@@ -1175,14 +1175,19 @@ xfs_inode_match_id(
 	struct xfs_inode	*ip,
 	struct xfs_eofblocks	*eofb)
 {
-	if (eofb->eof_flags & XFS_EOF_FLAGS_UID)
-		return ip->i_d.di_uid == eofb->eof_uid;
-	else if (eofb->eof_flags & XFS_EOF_FLAGS_GID)
-		return ip->i_d.di_gid == eofb->eof_gid;
-	else if (eofb->eof_flags & XFS_EOF_FLAGS_PRID)
-		return xfs_get_projid(ip) == eofb->eof_prid;
+	if (eofb->eof_flags & XFS_EOF_FLAGS_UID &&
+	    ip->i_d.di_uid != eofb->eof_uid)
+		return 0;
+
+	if (eofb->eof_flags & XFS_EOF_FLAGS_GID &&
+	    ip->i_d.di_gid != eofb->eof_gid)
+		return 0;
 
+	if (eofb->eof_flags & XFS_EOF_FLAGS_PRID &&
+	    xfs_get_projid(ip) != eofb->eof_prid)
 		return 0;
+
+	return 1;
 }
 
 STATIC int
@@ -1210,10 +1215,7 @@ xfs_inode_free_eofblocks(
 	    mapping_tagged(VFS_I(ip)->i_mapping, PAGECACHE_TAG_DIRTY))
 		return 0;
 
-	if (eofb &&
-	    (eofb->eof_flags & (XFS_EOF_FLAGS_UID|XFS_EOF_FLAGS_GID|
-			       XFS_EOF_FLAGS_PRID)) &&
-	    !xfs_inode_match_id(ip, eofb))
+	if (eofb && !xfs_inode_match_id(ip, eofb))
 		return 0;
 
 	ret = xfs_free_eofblocks(ip->i_mount, ip, true);