diff options
Diffstat (limited to 'drivers/block/cfq-iosched.c')
| -rw-r--r-- | drivers/block/cfq-iosched.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/drivers/block/cfq-iosched.c b/drivers/block/cfq-iosched.c index 0ef7a0065ec..3ac47dde64d 100644 --- a/drivers/block/cfq-iosched.c +++ b/drivers/block/cfq-iosched.c @@ -1202,13 +1202,16 @@ retry: if (new_cfqq) { cfqq = new_cfqq; new_cfqq = NULL; - } else if (gfp_mask & __GFP_WAIT) { + } else { spin_unlock_irq(cfqd->queue->queue_lock); new_cfqq = kmem_cache_alloc(cfq_pool, gfp_mask); spin_lock_irq(cfqd->queue->queue_lock); + + if (!new_cfqq && !(gfp_mask & __GFP_WAIT)) + goto out; + goto retry; - } else - goto out; + } memset(cfqq, 0, sizeof(*cfqq)); @@ -1772,7 +1775,7 @@ cfq_attr_show(struct kobject *kobj, struct attribute *attr, char *page) struct cfq_fs_entry *entry = to_cfq(attr); if (!entry->show) - return 0; + return -EIO; return entry->show(e->elevator_data, page); } @@ -1785,7 +1788,7 @@ cfq_attr_store(struct kobject *kobj, struct attribute *attr, struct cfq_fs_entry *entry = to_cfq(attr); if (!entry->store) - return -EINVAL; + return -EIO; return entry->store(e->elevator_data, page, length); } |