Messages in this thread Patch in this message | | | From | Ye Bin <> | Subject | [PATCH v3 3/3] blktrace: remove unnessary stop block trace in 'blk_trace_shutdown' | Date | Wed, 19 Oct 2022 11:36:02 +0800 |
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From: Ye Bin <yebin10@huawei.com>
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> --- kernel/trace/blktrace.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-)
diff --git a/kernel/trace/blktrace.c b/kernel/trace/blktrace.c index e17bba027a2c..a995ea1ef849 100644 --- a/kernel/trace/blktrace.c +++ b/kernel/trace/blktrace.c @@ -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 -- 2.31.1
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