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authorJohn Garry <john.garry@huawei.com>2020-08-19 23:20:22 +0800
committerJens Axboe <axboe@kernel.dk>2020-09-03 15:20:46 -0600
commit1c0706a70a64eda48477caa880657e07f5196512 (patch)
treee9d1f5b2334c97d192dc75313f55ebc2fa1359f6 /block/blk-mq-sched.c
parent4d063237b92a4e8d99350ad05492a45009a3c78c (diff)
blk-mq: Pass flags for tag init/free
Pass hctx/tagset flags argument down to blk_mq_init_tags() and blk_mq_free_tags() for selective init/free. For now, make it include the alloc policy flag, which can be evaluated when needed (in blk_mq_init_tags()). Signed-off-by: John Garry <john.garry@huawei.com> Tested-by: Douglas Gilbert <dgilbert@interlog.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/blk-mq-sched.c')
-rw-r--r--block/blk-mq-sched.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/block/blk-mq-sched.c b/block/blk-mq-sched.c
index 501a85ceaccb..edfc8ea805bc 100644
--- a/block/blk-mq-sched.c
+++ b/block/blk-mq-sched.c
@@ -560,9 +560,11 @@ static void blk_mq_sched_free_tags(struct blk_mq_tag_set *set,
struct blk_mq_hw_ctx *hctx,
unsigned int hctx_idx)
{
+ unsigned int flags = set->flags;
+
if (hctx->sched_tags) {
blk_mq_free_rqs(set, hctx->sched_tags, hctx_idx);
- blk_mq_free_rq_map(hctx->sched_tags);
+ blk_mq_free_rq_map(hctx->sched_tags, flags);
hctx->sched_tags = NULL;
}
}
@@ -572,10 +574,11 @@ static int blk_mq_sched_alloc_tags(struct request_queue *q,
unsigned int hctx_idx)
{
struct blk_mq_tag_set *set = q->tag_set;
+ unsigned int flags = set->flags;
int ret;
hctx->sched_tags = blk_mq_alloc_rq_map(set, hctx_idx, q->nr_requests,
- set->reserved_tags);
+ set->reserved_tags, flags);
if (!hctx->sched_tags)
return -ENOMEM;
@@ -593,8 +596,10 @@ static void blk_mq_sched_tags_teardown(struct request_queue *q)
int i;
queue_for_each_hw_ctx(q, hctx, i) {
+ unsigned int flags = hctx->flags;
+
if (hctx->sched_tags) {
- blk_mq_free_rq_map(hctx->sched_tags);
+ blk_mq_free_rq_map(hctx->sched_tags, flags);
hctx->sched_tags = NULL;
}
}