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| author | Jens Axboe <axboe@kernel.dk> | 2018-10-31 17:01:22 -0600 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2018-11-07 13:42:33 -0700 |
| commit | 9cf2bab6307659b940da65d16dcc8f82c69f3a97 (patch) | |
| tree | f740e7d0f2603456ea2863453513fb8c4ed08ef2 /block/blk-mq.c | |
| parent | c7bb9ad1744ea14e61e5fff99ee5282709b0c9d9 (diff) | |
| download | lwn-9cf2bab6307659b940da65d16dcc8f82c69f3a97.tar.gz lwn-9cf2bab6307659b940da65d16dcc8f82c69f3a97.zip | |
block: kill request ->cpu member
This was used for completion placement for the legacy path,
but for mq we have rq->mq_ctx->cpu for that. Add a helper
to get the request CPU assignment, as the mq_ctx type is
private to blk-mq.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq.c')
| -rw-r--r-- | block/blk-mq.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c index 5e7982918c54..67a2bafd4b29 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -297,7 +297,6 @@ static struct request *blk_mq_rq_ctx_init(struct blk_mq_alloc_data *data, rq->q = data->q; rq->mq_ctx = data->ctx; rq->rq_flags = rq_flags; - rq->cpu = -1; rq->cmd_flags = op; if (data->flags & BLK_MQ_REQ_PREEMPT) rq->rq_flags |= RQF_PREEMPT; @@ -3282,6 +3281,12 @@ static bool blk_mq_poll(struct request_queue *q, blk_qc_t cookie) return __blk_mq_poll(hctx, rq); } +unsigned int blk_mq_rq_cpu(struct request *rq) +{ + return rq->mq_ctx->cpu; +} +EXPORT_SYMBOL(blk_mq_rq_cpu); + static int __init blk_mq_init(void) { cpuhp_setup_state_multi(CPUHP_BLK_MQ_DEAD, "block/mq:dead", NULL, |