Re: [PATCH V2] block: Fix elevator_get_default() to check for null q->tag_set

From: Jens Axboe
Date: Mon Oct 07 2024 - 16:24:35 EST


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.

--
Jens Axboe