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gfs2: Fix wrong quota shrinker return value

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Function gfs2_qd_isolate must only return LRU_REMOVED when removing the
item from the lru list; otherwise, the number of items on the list will
go wrong.

Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
This commit is contained in:
Andreas Gruenbacher 2023-08-22 22:59:27 +02:00
parent e7beb8b6de
commit 6b0e9a5f1e
1 changed files with 6 additions and 2 deletions
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8
fs/gfs2/quota.c
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@ -149,18 +149,22 @@ static enum lru_status gfs2_qd_isolate(struct list_head *item,
struct list_lru_one *lru, spinlock_t *lru_lock, void *arg)
{
struct list_head *dispose = arg;
struct gfs2_quota_data *qd = list_entry(item, struct gfs2_quota_data, qd_lru);
struct gfs2_quota_data *qd =
list_entry(item, struct gfs2_quota_data, qd_lru);
enum lru_status status;
if (!spin_trylock(&qd->qd_lockref.lock))
return LRU_SKIP;
status = LRU_SKIP;
if (qd->qd_lockref.count == 0) {
lockref_mark_dead(&qd->qd_lockref);
list_lru_isolate_move(lru, &qd->qd_lru, dispose);
status = LRU_REMOVED;
}
spin_unlock(&qd->qd_lockref.lock);
return LRU_REMOVED;
return status;
}
static unsigned long gfs2_qd_shrink_scan(struct shrinker *shrink,