| Message ID | 20241007111416.13814-1-surajsonawane0215@gmail.com (mailing list archive) |
|---|---|
| State | New |
| Headers | show |
| Series | [V2] block: Fix elevator_get_default() to check for null q->tag_set | expand |
On 10/7/24 5:14 AM, SurajSonawane2415 wrote: > Fix error "block/elevator.c:569 elevator_get_default() error: > we previously assumed 'q->tag_set' could be null (see line 565)". > Since 'q->tag_set' cannot be NULL for blk-mq queues, > remove the unnecessary check in both `elevator_get_default` > and `elv_support_iosched`. This simplifies the logic and > ensures correct assumptions about 'q->tag_set' in blk-mq queues. For future patches: 1) Wrap at 72 characters, your commit message is using shorter line lengths. 2) Don't both with file numbers, they change all of the time. Digging out an old commit with line numbers isn't very useful, you'd have to rewind your tree for them to make sense. I'll commit this, but rewrite the commit message somewhat.
On Mon, 07 Oct 2024 16:44:16 +0530, SurajSonawane2415 wrote: > Fix error "block/elevator.c:569 elevator_get_default() error: > we previously assumed 'q->tag_set' could be null (see line 565)". > Since 'q->tag_set' cannot be NULL for blk-mq queues, > remove the unnecessary check in both `elevator_get_default` > and `elv_support_iosched`. This simplifies the logic and > ensures correct assumptions about 'q->tag_set' in blk-mq queues. > > [...] Applied, thanks! [1/1] block: Fix elevator_get_default() to check for null q->tag_set commit: b402328a24ee7193a8ab84277c0c90ae16768126 Best regards,
diff --git a/block/elevator.c b/block/elevator.c index 4122026b1..60497e3b2 100644 --- a/block/elevator.c +++ b/block/elevator.c @@ -551,7 +551,7 @@ EXPORT_SYMBOL_GPL(elv_unregister); static inline bool elv_support_iosched(struct request_queue *q) { if (!queue_is_mq(q) || - (q->tag_set && (q->tag_set->flags & BLK_MQ_F_NO_SCHED))) + (q->tag_set->flags & BLK_MQ_F_NO_SCHED)) return false; return true; } @@ -562,7 +562,7 @@ static inline bool elv_support_iosched(struct request_queue *q) */ static struct elevator_type *elevator_get_default(struct request_queue *q) { - if (q->tag_set && q->tag_set->flags & BLK_MQ_F_NO_SCHED_BY_DEFAULT) + if (q->tag_set->flags & BLK_MQ_F_NO_SCHED_BY_DEFAULT) return NULL; if (q->nr_hw_queues != 1 &&
Fix error "block/elevator.c:569 elevator_get_default() error: we previously assumed 'q->tag_set' could be null (see line 565)". Since 'q->tag_set' cannot be NULL for blk-mq queues, remove the unnecessary check in both `elevator_get_default` and `elv_support_iosched`. This simplifies the logic and ensures correct assumptions about 'q->tag_set' in blk-mq queues. Signed-off-by: SurajSonawane2415 <surajsonawane0215@gmail.com> --- V1 -> V2: - Remove unnecessary `q->tag_set` check in `elv_support_iosched` function. - Remove `q->tag_set` check because blk-mq queues always have a valid tag set. block/elevator.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)