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| author | Ming Lei <tom.leiming@gmail.com> | 2014-06-01 00:43:37 +0800 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2014-06-03 21:04:39 -0600 |
| commit | cb96a42cc1f50ba1c7b1e9b2343bec80b926107f (patch) | |
| tree | c69f953fcd7d04288903abe73a0f92f155882bfd /block/blk-mq-tag.h | |
| parent | 1aecfe4887713838c79bc52f774609a57db4f988 (diff) | |
| download | linux-stable-cb96a42cc1f50ba1c7b1e9b2343bec80b926107f.tar.gz linux-stable-cb96a42cc1f50ba1c7b1e9b2343bec80b926107f.tar.bz2 linux-stable-cb96a42cc1f50ba1c7b1e9b2343bec80b926107f.zip | |
blk-mq: fix schedule from atomic context
blk_mq_put_ctx() has to be called before io_schedule() in
bt_get().
This patch fixes the problem by taking similar approach from
percpu_ida allocation for the situation.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-tag.h')
| -rw-r--r-- | block/blk-mq-tag.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/block/blk-mq-tag.h b/block/blk-mq-tag.h index c959de58d2a5..98696a65d4d4 100644 --- a/block/blk-mq-tag.h +++ b/block/blk-mq-tag.h @@ -48,7 +48,7 @@ struct blk_mq_tags { extern struct blk_mq_tags *blk_mq_init_tags(unsigned int nr_tags, unsigned int reserved_tags, int node); 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 unsigned int blk_mq_get_tag(struct blk_mq_alloc_data *data); 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); |