Inside blk_mq_alloc_rqs(), 'max_order' is actually one const local
variable, define it as macro, and this macro will be re-used
in following patch.
Signed-off-by: Ming Lei <ming.lei@xxxxxxxxxx>
Cc: Hannes Reinecke <hare@xxxxxxx>
Cc: Bart Van Assche <bvanassche@xxxxxxx>
Cc: John Garry <john.garry@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
---
block/blk-mq.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/block/blk-mq.c b/block/blk-mq.c
index 77d885805699..f9da2d803c18 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -2360,10 +2360,12 @@ static int blk_mq_init_request(struct blk_mq_tag_set *set, struct request *rq,
return 0;
}
+#define MAX_RQS_PAGE_ORDER 4
+
int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
unsigned int hctx_idx, unsigned int depth)
{
- unsigned int i, j, entries_per_page, max_order = 4;
+ unsigned int i, j, entries_per_page;
size_t rq_size, left;
int node;
@@ -2382,7 +2384,7 @@ int blk_mq_alloc_rqs(struct blk_mq_tag_set *set, struct blk_mq_tags *tags,
left = rq_size * depth;
for (i = 0; i < depth; ) {
- int this_order = max_order;
+ int this_order = MAX_RQS_PAGE_ORDER;
struct page *page;
int to_do;
void *p;
--
2.25.2
