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Subject[PATCH 2/8] blk-mq: make mq_ops a const pointer
Date
We never change it, make that clear.

Signed-off-by: Jens Axboe <axboe@fb.com>
Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com>
---
block/blk-mq.c | 2 +-
include/linux/blk-mq.h | 2 +-
include/linux/blkdev.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/block/blk-mq.c b/block/blk-mq.c
index d79fdc11b1ee..87b7eaa1cb74 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 286b2a264383..7c40fb838b44 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -408,7 +408,7 @@ 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;

--
2.7.4
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