diff options
| author | Omar Sandoval <osandov@fb.com> | 2017-04-05 12:01:31 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-04-07 08:56:46 -0600 |
| commit | 93252632e828da3e90241a1c0e766556abf71598 (patch) | |
| tree | 388756bb6862ea8943c87240644a33feb8c5c402 /block/blk-mq-sched.h | |
| parent | 6917ff0b5bd4139e08a3f3146529dcb3b95ba7a6 (diff) | |
| download | lwn-93252632e828da3e90241a1c0e766556abf71598.tar.gz lwn-93252632e828da3e90241a1c0e766556abf71598.zip | |
blk-mq-sched: set up scheduler tags when bringing up new queues
If a new hardware queue is added at runtime, we don't allocate scheduler
tags for it, leading to a crash. This hooks up the scheduler framework
to blk_mq_{init,exit}_hctx() to make sure everything gets properly
initialized/freed.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'block/blk-mq-sched.h')
| -rw-r--r-- | block/blk-mq-sched.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/block/blk-mq-sched.h b/block/blk-mq-sched.h index 873f9af5a35b..19db25e0c95a 100644 --- a/block/blk-mq-sched.h +++ b/block/blk-mq-sched.h @@ -35,6 +35,11 @@ void blk_mq_sched_move_to_dispatch(struct blk_mq_hw_ctx *hctx, int blk_mq_init_sched(struct request_queue *q, struct elevator_type *e); void blk_mq_sched_teardown(struct request_queue *q); +int blk_mq_sched_init_hctx(struct request_queue *q, struct blk_mq_hw_ctx *hctx, + unsigned int hctx_idx); +void blk_mq_sched_exit_hctx(struct request_queue *q, struct blk_mq_hw_ctx *hctx, + unsigned int hctx_idx); + int blk_mq_sched_init(struct request_queue *q); static inline bool |