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authorTejun Heo <tj@kernel.org>2012-06-04 20:40:59 -0700
committerJens Axboe <axboe@kernel.dk>2012-06-25 11:53:52 +0200
commit5b788ce3e2acac9bf109743b1281d77347cf2101 (patch)
tree907477e42d27bec9a2060fcc709402b7636390c9 /block/blk-sysfs.c
parent8a5ecdd42862bf87ceab00bf2a15d7eabf58c02d (diff)
downloadlinux-stericsson-5b788ce3e2acac9bf109743b1281d77347cf2101.tar.gz
block: prepare for multiple request_lists
Request allocation is about to be made per-blkg meaning that there'll be multiple request lists. * Make queue full state per request_list. blk_*queue_full() functions are renamed to blk_*rl_full() and takes @rl instead of @q. * Rename blk_init_free_list() to blk_init_rl() and make it take @rl instead of @q. Also add @gfp_mask parameter. * Add blk_exit_rl() instead of destroying rl directly from blk_release_queue(). * Add request_list->q and make request alloc/free functions - blk_free_request(), [__]freed_request(), __get_request() - take @rl instead of @q. This patch doesn't introduce any functional difference. Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Vivek Goyal <vgoyal@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-sysfs.c')
-rw-r--r--block/blk-sysfs.c12
1 files changed, 5 insertions, 7 deletions
diff --git a/block/blk-sysfs.c b/block/blk-sysfs.c
index aa41b47c22d2..234ce7c082fa 100644
--- a/block/blk-sysfs.c
+++ b/block/blk-sysfs.c
@@ -66,16 +66,16 @@ queue_requests_store(struct request_queue *q, const char *page, size_t count)
blk_clear_queue_congested(q, BLK_RW_ASYNC);
if (rl->count[BLK_RW_SYNC] >= q->nr_requests) {
- blk_set_queue_full(q, BLK_RW_SYNC);
+ blk_set_rl_full(rl, BLK_RW_SYNC);
} else {
- blk_clear_queue_full(q, BLK_RW_SYNC);
+ blk_clear_rl_full(rl, BLK_RW_SYNC);
wake_up(&rl->wait[BLK_RW_SYNC]);
}
if (rl->count[BLK_RW_ASYNC] >= q->nr_requests) {
- blk_set_queue_full(q, BLK_RW_ASYNC);
+ blk_set_rl_full(rl, BLK_RW_ASYNC);
} else {
- blk_clear_queue_full(q, BLK_RW_ASYNC);
+ blk_clear_rl_full(rl, BLK_RW_ASYNC);
wake_up(&rl->wait[BLK_RW_ASYNC]);
}
spin_unlock_irq(q->queue_lock);
@@ -476,7 +476,6 @@ static void blk_release_queue(struct kobject *kobj)
{
struct request_queue *q =
container_of(kobj, struct request_queue, kobj);
- struct request_list *rl = &q->rq;
blk_sync_queue(q);
@@ -489,8 +488,7 @@ static void blk_release_queue(struct kobject *kobj)
elevator_exit(q->elevator);
}
- if (rl->rq_pool)
- mempool_destroy(rl->rq_pool);
+ blk_exit_rl(&q->rq);
if (q->queue_tags)
__blk_queue_free_tags(q);