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| author | Christoph Hellwig <hch@lst.de> | 2014-05-27 20:59:48 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-05-28 09:49:23 -0600 |
| commit | a3bd77567cae6af700dcd245148befc73fc89a50 (patch) | |
| tree | 465934c4f1fb0687da5d862e5221d54c0d34eb2f /block/blk-mq-tag.h | |
| parent | 5dee857720db15e2c8ef0c03f7eeac00c4c63cb2 (diff) | |
| download | linux-0-day-a3bd77567cae6af700dcd245148befc73fc89a50.tar.gz linux-0-day-a3bd77567cae6af700dcd245148befc73fc89a50.tar.xz | |
blk-mq: remove blk_mq_wait_for_tags
The current logic for blocking tag allocation is rather confusing, as we
first allocated and then free again a tag in blk_mq_wait_for_tags, just
to attempt a non-blocking allocation and then repeat if someone else
managed to grab the tag before us.
Instead change blk_mq_alloc_request_pinned to simply do a blocking tag
allocation itself and use the request we get back from it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-tag.h')
| -rw-r--r-- | block/blk-mq-tag.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index 2e5e6872d0892..c959de58d2a55 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -49,7 +49,6 @@ extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags, unsigned int r extern void blk_mq_free_tags(struct blk_mq_tags *tags); extern unsigned int blk_mq_get_tag(struct blk_mq_hw_ctx *hctx, unsigned int *last_tag, gfp_t gfp, bool reserved); -extern void blk_mq_wait_for_tags(struct blk_mq_hw_ctx *hctx, bool reserved); extern void blk_mq_put_tag(struct blk_mq_hw_ctx *hctx, unsigned int tag, unsigned int *last_tag); extern bool blk_mq_has_free_tags(struct blk_mq_tags *tags); extern ssize_t blk_mq_tag_sysfs_show(struct blk_mq_tags *tags, char *page); |