summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJens Axboe <axboe@fb.com>2016-12-13 09:24:51 -0700
committerJens Axboe <axboe@fb.com>2017-01-11 20:47:44 -0700
commitf8a5b12247fe18f7fed801ad262a7ab190e1f848 (patch)
tree51e9783f5b13db75bebdbffa4e422b9b0624f254
parent729204ef49ec00b788ce23deb9eb922a5769f55d (diff)
downloadlinux-f8a5b12247fe18f7fed801ad262a7ab190e1f848.tar.bz2
blk-mq: make mq_ops a const pointer
We never change it, make that clear. Signed-off-by: Jens Axboe <axboe@fb.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
-rw-r--r--block/blk-mq.c2
-rw-r--r--include/linux/blk-mq.h2
-rw-r--r--include/linux/blkdev.h2
3 files changed, 3 insertions, 3 deletions
diff --git a/block/blk-mq.c b/block/blk-mq.c
index a8e67a155d04..79e1cb0f7b15 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -639,7 +639,7 @@ struct blk_mq_timeout_data {
void blk_mq_rq_timed_out(struct request *req, bool reserved)
{
- struct blk_mq_ops *ops = req->q->mq_ops;
+ const struct blk_mq_ops *ops = req->q->mq_ops;
enum blk_eh_timer_return ret = BLK_EH_RESET_TIMER;
/*
diff --git a/include/linux/blk-mq.h b/include/linux/blk-mq.h
index 4a2ab5d99ff7..afc81d77e471 100644
--- a/include/linux/blk-mq.h
+++ b/include/linux/blk-mq.h
@@ -60,7 +60,7 @@ struct blk_mq_hw_ctx {
struct blk_mq_tag_set {
unsigned int *mq_map;
- struct blk_mq_ops *ops;
+ const struct blk_mq_ops *ops;
unsigned int nr_hw_queues;
unsigned int queue_depth; /* max hw supported */
unsigned int reserved_tags;
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index b20da8dfa7ec..2e99d659b0f1 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -407,7 +407,7 @@ struct request_queue {
dma_drain_needed_fn *dma_drain_needed;
lld_busy_fn *lld_busy_fn;
- struct blk_mq_ops *mq_ops;
+ const struct blk_mq_ops *mq_ops;
unsigned int *mq_map;