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, 5 insertions, 10 deletions

diff --git a/fs/xfs/scrub/refcount.c b/fs/xfs/scrub/refcount.c
index b7ade620acee..708b4158eb90 100644
--- a/fs/xfs/scrub/refcount.c
+++ b/fs/xfs/scrub/refcount.c
@@ -385,7 +385,6 @@ xchk_refcount_xref_rmap(
 	struct xfs_scrub	*sc,
 	xfs_filblks_t		cow_blocks)
 {
-	struct xfs_owner_info	oinfo;
 	xfs_extlen_t		refcbt_blocks = 0;
 	xfs_filblks_t		blocks;
 	int			error;
@@ -394,21 +393,19 @@ xchk_refcount_xref_rmap(
 		return;
 
 	/* Check that we saw as many refcbt blocks as the rmap knows about. */
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_REFC);
 	error = xfs_btree_count_blocks(sc->sa.refc_cur, &refcbt_blocks);
 	if (!xchk_btree_process_error(sc, sc->sa.refc_cur, 0, &error))
 		return;
-	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_REFC, &blocks);
 	if (!xchk_should_check_xref(sc, &error, &sc->sa.rmap_cur))
 		return;
 	if (blocks != refcbt_blocks)
 		xchk_btree_xref_set_corrupt(sc, sc->sa.rmap_cur, 0);
 
 	/* Check that we saw as many cow blocks as the rmap knows about. */
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_COW);
-	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_COW, &blocks);
 	if (!xchk_should_check_xref(sc, &error, &sc->sa.rmap_cur))
 		return;
 	if (blocks != cow_blocks)
@@ -420,13 +417,11 @@ int
 xchk_refcountbt(
 	struct xfs_scrub	*sc)
 {
-	struct xfs_owner_info	oinfo;
 	xfs_agblock_t		cow_blocks = 0;
 	int			error;
 
-	xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_REFC);
 	error = xchk_btree(sc, sc->sa.refc_cur, xchk_refcountbt_rec,
-			&oinfo, &cow_blocks);
+			&XFS_RMAP_OINFO_REFC, &cow_blocks);
 	if (error)
 		return error;