diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-03 17:35:26 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-05-03 17:35:26 +0300 |
| commit | b9c92fb4aabb8d93b657d028f7c530d6c42cb630 (patch) | |
| tree | 8fdb7274eee9e5a9b619979988171bce6725369b /block/bfq-iosched.c | |
| parent | c40b62216c1aecc0dc00faf33d71bd71cb440337 (diff) | |
| parent | 672c0c5173427e6b3e2a9bbb7be51ceeec78093a (diff) | |
| download | linux-b9c92fb4aabb8d93b657d028f7c530d6c42cb630.tar.xz | |
Merge 5.18-rc5 into usb-next
We need the USB fixes in here, and this resolves a merge issue in
drivers/usb/dwc3/drd.c
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'block/bfq-iosched.c')
| -rw-r--r-- | block/bfq-iosched.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c index 2e0dd68a3cbe..1f62dbdc521f 100644 --- a/block/bfq-iosched.c +++ b/block/bfq-iosched.c @@ -569,7 +569,7 @@ static bool bfqq_request_over_limit(struct bfq_queue *bfqq, int limit) struct bfq_entity *entity = &bfqq->entity; struct bfq_entity *inline_entities[BFQ_LIMIT_INLINE_DEPTH]; struct bfq_entity **entities = inline_entities; - int depth, level; + int depth, level, alloc_depth = BFQ_LIMIT_INLINE_DEPTH; int class_idx = bfqq->ioprio_class - 1; struct bfq_sched_data *sched_data; unsigned long wsum; @@ -578,15 +578,21 @@ static bool bfqq_request_over_limit(struct bfq_queue *bfqq, int limit) if (!entity->on_st_or_in_serv) return false; +retry: + spin_lock_irq(&bfqd->lock); /* +1 for bfqq entity, root cgroup not included */ depth = bfqg_to_blkg(bfqq_group(bfqq))->blkcg->css.cgroup->level + 1; - if (depth > BFQ_LIMIT_INLINE_DEPTH) { + if (depth > alloc_depth) { + spin_unlock_irq(&bfqd->lock); + if (entities != inline_entities) + kfree(entities); entities = kmalloc_array(depth, sizeof(*entities), GFP_NOIO); if (!entities) return false; + alloc_depth = depth; + goto retry; } - spin_lock_irq(&bfqd->lock); sched_data = entity->sched_data; /* Gather our ancestors as we need to traverse them in reverse order */ level = 0; |