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sbitmap: push per-cpu last_tag into sbitmap_queue

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Allocating your own per-cpu allocation hint separately makes for an
awkward API. Instead, allocate the per-cpu hint as part of the struct
sbitmap_queue. There's no point for a struct sbitmap_queue without the
cache, but you can still use a bare struct sbitmap.

Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Omar Sandoval
2016-09-17 01:28:23 -07:00
committed by Jens Axboe
parent 48e28166a7
commit 40aabb6746
6 changed files with 98 additions and 42 deletions
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block/blk-mq.c
+1 -1
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@@ -303,7 +303,7 @@ static void __blk_mq_free_request(struct blk_mq_hw_ctx *hctx,
rq->cmd_flags = 0;
clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags);
blk_mq_put_tag(hctx, tag, &ctx->last_tag);
blk_mq_put_tag(hctx, ctx, tag);
blk_queue_exit(q);
}