diff options
Diffstat (limited to 'block/blk-core.c')
| -rw-r--r-- | block/blk-core.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index d2f8f4049abd..a56485292062 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -1302,7 +1302,10 @@ get_rq: plug->should_sort = 1; } list_add_tail(&req->queuelist, &plug->list); + plug->count++; drive_stat_acct(req, 1); + if (plug->count >= BLK_MAX_REQUEST_COUNT) + blk_flush_plug_list(plug, false); } else { spin_lock_irq(q->queue_lock); add_acct_request(q, req, where); @@ -2626,6 +2629,7 @@ void blk_start_plug(struct blk_plug *plug) INIT_LIST_HEAD(&plug->list); INIT_LIST_HEAD(&plug->cb_list); plug->should_sort = 0; + plug->count = 0; /* * If this is a nested plug, don't actually assign it. It will be @@ -2709,6 +2713,7 @@ void blk_flush_plug_list(struct blk_plug *plug, bool from_schedule) return; list_splice_init(&plug->list, &list); + plug->count = 0; if (plug->should_sort) { list_sort(NULL, &list, plug_rq_cmp); |