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xfs: collapse scrub bool state flags into a single unsigned int 

Combine all the boolean state flags in struct xfs_scrub into a single
unsigned int, because we're going to be adding more state flags soon.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong 2019-04-16 08:21:59 -07:00
parent 9d71e15586
commit f8c2a2257c
6 changed files with 17 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/xfs/scrub/ialloc.c
View File

@ -39,7 +39,7 @@ xchk_setup_ag_iallocbt(
struct xfs_scrub *sc,
struct xfs_inode *ip)
{
return xchk_setup_ag_btree(sc, ip, sc->try_harder);
return xchk_setup_ag_btree(sc, ip, sc->flags & XCHK_TRY_HARDER);
}
/* Inode btree scrubber. */
@ -185,7 +185,7 @@ xchk_iallocbt_check_cluster_ifree(
if (error == -ENODATA) {
/* Not cached, just read the disk buffer */
freemask_ok = irec_free ^ !!(dip->di_mode);
if (!bs->sc->try_harder && !freemask_ok)
if (!(bs->sc->flags & XCHK_TRY_HARDER) && !freemask_ok)
return -EDEADLOCK;
} else if (error < 0) {
/*

2
fs/xfs/scrub/parent.c
View File

@ -320,7 +320,7 @@ out:
* If we failed to lock the parent inode even after a retry, just mark
* this scrub incomplete and return.
*/
if (sc->try_harder && error == -EDEADLOCK) {
if ((sc->flags & XCHK_TRY_HARDER) && error == -EDEADLOCK) {
error = 0;
xchk_set_incomplete(sc);
}

2
fs/xfs/scrub/quota.c
View File

@ -60,7 +60,7 @@ xchk_setup_quota(
dqtype = xchk_quota_to_dqtype(sc);
if (dqtype == 0)
return -EINVAL;
sc->has_quotaofflock = true;
sc->flags |= XCHK_HAS_QUOTAOFFLOCK;
mutex_lock(&sc->mp->m_quotainfo->qi_quotaofflock);
if (!xfs_this_quota_on(sc->mp, dqtype))
return -ENOENT;

4
fs/xfs/scrub/repair.c
View File

@ -71,8 +71,8 @@ xrep_attempt(
case -EDEADLOCK:
case -EAGAIN:
/* Tell the caller to try again having grabbed all the locks. */
if (!sc->try_harder) {
sc->try_harder = true;
if (!(sc->flags & XCHK_TRY_HARDER)) {
sc->flags |= XCHK_TRY_HARDER;
return -EAGAIN;
}
/*

8
fs/xfs/scrub/scrub.c
View File

@ -186,9 +186,9 @@ xchk_teardown(
xfs_irele(sc->ip);
sc->ip = NULL;
}
if (sc->has_quotaofflock) {
if (sc->flags & XCHK_HAS_QUOTAOFFLOCK) {
mutex_unlock(&sc->mp->m_quotainfo->qi_quotaofflock);
sc->has_quotaofflock = false;
sc->flags &= ~XCHK_HAS_QUOTAOFFLOCK;
}
if (sc->buf) {
kmem_free(sc->buf);
@ -507,7 +507,7 @@ retry_op:
/* Scrub for errors. */
error = sc.ops->scrub(&sc);
if (!sc.try_harder && error == -EDEADLOCK) {
if (!(sc.flags & XCHK_TRY_HARDER) && error == -EDEADLOCK) {
/*
* Scrubbers return -EDEADLOCK to mean 'try harder'.
* Tear down everything we hold, then set up again with
@ -516,7 +516,7 @@ retry_op:
error = xchk_teardown(&sc, ip, 0);
if (error)
goto out;
sc.try_harder = true;
sc.flags |= XCHK_TRY_HARDER;
goto retry_op;
} else if (error)
goto out_teardown;

9
fs/xfs/scrub/scrub.h
View File

@ -62,13 +62,18 @@ struct xfs_scrub {
struct xfs_inode *ip;
void *buf;
uint ilock_flags;
bool try_harder;
bool has_quotaofflock;
/* See the XCHK state flags below. */
unsigned int flags;
/* State tracking for single-AG operations. */
struct xchk_ag sa;
};
/* XCHK state flags */
#define XCHK_TRY_HARDER (1 << 0) /* can't get resources, try again */
#define XCHK_HAS_QUOTAOFFLOCK (1 << 1) /* we hold the quotaoff lock */
/* Metadata scrubbers */
int xchk_tester(struct xfs_scrub *sc);
int xchk_superblock(struct xfs_scrub *sc);