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xfs: remove xfs_rmap_ag_owner and friends

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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>
This commit is contained in:
Darrick J. Wong 2018-12-12 08:46:23 -08:00
parent 66e3237e72
commit 7280fedaf3
17 changed files with 84 additions and 116 deletions
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9
fs/xfs/libxfs/xfs_alloc.c
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@ -1594,7 +1594,6 @@ xfs_alloc_ag_vextent_small(
xfs_extlen_t *flenp, /* result length */
int *stat) /* status: 0-freelist, 1-normal/none */
{
struct xfs_owner_info oinfo;
int error;
xfs_agblock_t fbno;
xfs_extlen_t flen;
@ -1648,9 +1647,8 @@ xfs_alloc_ag_vextent_small(
* doesn't live in the free space, we need to clear
* out the OWN_AG rmap.
*/
xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_AG);
error = xfs_rmap_free(args->tp, args->agbp, args->agno,
fbno, 1, &oinfo);
fbno, 1, &XFS_RMAP_OINFO_AG);
if (error)
goto error0;
@ -2314,10 +2312,11 @@ xfs_alloc_fix_freelist(
* repair/rmap.c in xfsprogs for details.
*/
memset(&targs, 0, sizeof(targs));
/* struct copy below */
if (flags & XFS_ALLOC_FLAG_NORMAP)
xfs_rmap_skip_owner_update(&targs.oinfo);
targs.oinfo = XFS_RMAP_OINFO_SKIP_UPDATE;
else
xfs_rmap_ag_owner(&targs.oinfo, XFS_RMAP_OWN_AG);
targs.oinfo = XFS_RMAP_OINFO_AG;
while (!(flags & XFS_ALLOC_FLAG_NOSHRINK) && pag->pagf_flcount > need) {
error = xfs_alloc_get_freelist(tp, agbp, &bno, 0);
if (error)