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blktrace: remove unnessary stop block trace in 'blk_trace_shutdown'

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As previous commit, 'blk_trace_cleanup' will stop block trace if
block trace's state is 'Blktrace_running'.
So remove unnessary stop block trace in 'blk_trace_shutdown'.

Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20221019033602.752383-4-yebin@huaweicloud.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ye Bin 2022-10-19 11:36:02 +08:00 committed by Jens Axboe
parent dcd1a59c62
commit 2db96217e7
1 changed files with 1 additions and 3 deletions
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4
kernel/trace/blktrace.c
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@ -776,10 +776,8 @@ int blk_trace_ioctl(struct block_device *bdev, unsigned cmd, char __user *arg)
void blk_trace_shutdown(struct request_queue *q)
{
if (rcu_dereference_protected(q->blk_trace,
lockdep_is_held(&q->debugfs_mutex))) {
__blk_trace_startstop(q, 0);
lockdep_is_held(&q->debugfs_mutex)))
__blk_trace_remove(q);
}
}
#ifdef CONFIG_BLK_CGROUP