diff options
| author | Shaohua Li <shli@fb.com> | 2017-10-06 17:56:00 -0700 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2017-10-10 13:48:16 -0600 |
| commit | 85acb3ba2f925a0ec6928c1967c3adefa00682f4 (patch) | |
| tree | 8f33cf0708140ea17e4fa3d3fc31aadfd1867b0e | |
| parent | eca8b53a6769e60d6d8240d71202d73b0af81901 (diff) | |
| download | linux-85acb3ba2f925a0ec6928c1967c3adefa00682f4.tar.bz2 | |
block: set request_list for request
Legacy queue sets request's request_list, mq doesn't. This makes mq does
the same thing, so we can find cgroup of a request. Note, we really
only use blkg field of request_list, it's pointless to allocate mempool
for request_list in mq case.
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
| -rw-r--r-- | block/blk-core.c | 2 | ||||
| -rw-r--r-- | block/blk-mq.c | 5 |
2 files changed, 6 insertions, 1 deletions
diff --git a/block/blk-core.c b/block/blk-core.c index 14f7674fa0b1..e8e149ccc86b 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -718,7 +718,7 @@ static void free_request_size(void *element, void *data) int blk_init_rl(struct request_list *rl, struct request_queue *q, gfp_t gfp_mask) { - if (unlikely(rl->rq_pool)) + if (unlikely(rl->rq_pool) || q->mq_ops) return 0; rl->q = q; diff --git a/block/blk-mq.c b/block/blk-mq.c index 076cbab9c3e0..40cba1b1978f 100644 --- a/block/blk-mq.c +++ b/block/blk-mq.c @@ -481,6 +481,9 @@ void blk_mq_free_request(struct request *rq) wbt_done(q->rq_wb, &rq->issue_stat); + if (blk_rq_rl(rq)) + blk_put_rl(blk_rq_rl(rq)); + clear_bit(REQ_ATOM_STARTED, &rq->atomic_flags); clear_bit(REQ_ATOM_POLL_SLEPT, &rq->atomic_flags); if (rq->tag != -1) @@ -1532,6 +1535,8 @@ static void blk_mq_bio_to_request(struct request *rq, struct bio *bio) { blk_init_request_from_bio(rq, bio); + blk_rq_set_rl(rq, blk_get_rl(rq->q, bio)); + blk_account_io_start(rq, true); } |