xfs: remove xfs_rmap_ag_owner and friends

Owner information for static fs metadata can be defined readonly at
build time because it never changes across filesystems.  This enables us
to reduce stack usage (particularly in scrub) because we can use the
statically defined oinfo structures.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>

1 files changed, 9 insertions, 19 deletions

diff --git a/fs/xfs/scrub/ialloc.c b/fs/xfs/scrub/ialloc.c
index 224dba937492..72f45b298fa5 100644
--- a/fs/xfs/scrub/ialloc.c
+++ b/fs/xfs/scrub/ialloc.c
@@ -82,15 +82,12 @@ xchk_iallocbt_chunk_xref(
 	xfs_agblock_t			agbno,
 	xfs_extlen_t			len)
 {
-	struct xfs_owner_info		oinfo;
-
 	if (sc->sm->sm_flags & XFS_SCRUB_OFLAG_CORRUPT)
 		return;
 
 	xchk_xref_is_used_space(sc, agbno, len);
 	xchk_iallocbt_chunk_xref_other(sc, irec, agino);
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INODES);
-	xchk_xref_is_owned_by(sc, agbno, len, &oinfo);
+	xchk_xref_is_owned_by(sc, agbno, len, &XFS_RMAP_OINFO_INODES);
 	xchk_xref_is_not_shared(sc, agbno, len);
 }
 
@@ -186,7 +183,6 @@ xchk_iallocbt_check_freemask(
 	struct xchk_btree		*bs,
 	struct xfs_inobt_rec_incore	*irec)
 {
-	struct xfs_owner_info		oinfo;
 	struct xfs_imap			imap;
 	struct xfs_mount		*mp = bs->cur->bc_mp;
 	struct xfs_dinode		*dip;
@@ -205,7 +201,6 @@ xchk_iallocbt_check_freemask(
 	/* Make sure the freemask matches the inode records. */
 	blks_per_cluster = xfs_icluster_size_fsb(mp);
 	nr_inodes = XFS_OFFBNO_TO_AGINO(mp, blks_per_cluster, 0);
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INODES);
 
 	for (agino = irec->ir_startino;
 	     agino < irec->ir_startino + XFS_INODES_PER_CHUNK;
@@ -230,12 +225,13 @@ xchk_iallocbt_check_freemask(
 		/* If any part of this is a hole, skip it. */
 		if (ir_holemask) {
 			xchk_xref_is_not_owned_by(bs->sc, agbno,
-					blks_per_cluster, &oinfo);
+					blks_per_cluster,
+					&XFS_RMAP_OINFO_INODES);
 			continue;
 		}
 
 		xchk_xref_is_owned_by(bs->sc, agbno, blks_per_cluster,
-				&oinfo);
+				&XFS_RMAP_OINFO_INODES);
 
 		/* Grab the inode cluster buffer. */
 		imap.im_blkno = XFS_AGB_TO_DADDR(mp, bs->cur->bc_private.a.agno,
@@ -366,7 +362,6 @@ xchk_iallocbt_xref_rmap_btreeblks(
 	struct xfs_scrub	*sc,
 	int			which)
 {
-	struct xfs_owner_info	oinfo;
 	xfs_filblks_t		blocks;
 	xfs_extlen_t		inobt_blocks = 0;
 	xfs_extlen_t		finobt_blocks = 0;
@@ -388,9 +383,8 @@ xchk_iallocbt_xref_rmap_btreeblks(
 			return;
 	}
 
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INOBT);
-	error = xchk_count_rmap_ownedby_ag(sc, sc->sa.rmap_cur, &oinfo,
-			&blocks);
+	error = xchk_count_rmap_ownedby_ag(sc, sc->sa.rmap_cur,
+			&XFS_RMAP_OINFO_INOBT, &blocks);
 	if (!xchk_should_check_xref(sc, &error, &sc->sa.rmap_cur))
 		return;
 	if (blocks != inobt_blocks + finobt_blocks)
@@ -407,7 +401,6 @@ xchk_iallocbt_xref_rmap_inodes(
 	int			which,
 	xfs_filblks_t		inode_blocks)
 {
-	struct xfs_owner_info	oinfo;
 	xfs_filblks_t		blocks;
 	int			error;
 
@@ -415,9 +408,8 @@ xchk_iallocbt_xref_rmap_inodes(
 		return;
 
 	/* Check that we saw as many inode blocks as the rmap knows about. */
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INODES);
-	error = xchk_count_rmap_ownedby_ag(sc, sc->sa.rmap_cur, &oinfo,
-			&blocks);
+	error = xchk_count_rmap_ownedby_ag(sc, sc->sa.rmap_cur,
+			&XFS_RMAP_OINFO_INODES, &blocks);
 	if (!xchk_should_check_xref(sc, &error, &sc->sa.rmap_cur))
 		return;
 	if (blocks != inode_blocks)
@@ -431,13 +423,11 @@ xchk_iallocbt(
 	xfs_btnum_t		which)
 {
 	struct xfs_btree_cur	*cur;
-	struct xfs_owner_info	oinfo;
 	xfs_filblks_t		inode_blocks = 0;
 	int			error;
 
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_INOBT);
 	cur = which == XFS_BTNUM_INO ? sc->sa.ino_cur : sc->sa.fino_cur;
-	error = xchk_btree(sc, cur, xchk_iallocbt_rec, &oinfo,
+	error = xchk_btree(sc, cur, xchk_iallocbt_rec, &XFS_RMAP_OINFO_INOBT,
 			&inode_blocks);
 	if (error)
 		return error;