* [PATCH] async.c: reduce the critical region in lowest_in_progress()
@ 2020-10-15 14:05 Hui Su
0 siblings, 0 replies; only message in thread
From: Hui Su @ 2020-10-15 14:05 UTC (permalink / raw)
To: sh_def, leon, jgg, keescook, kvalo, linux-kernel
The judgement of first do not need to be in the critical region.
So move it out.
Signed-off-by: Hui Su <sh_def@163.com>
---
kernel/async.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/async.c b/kernel/async.c
index 33258e6e20f8..9d33ffcc84c7 100644
--- a/kernel/async.c
+++ b/kernel/async.c
@@ -96,10 +96,10 @@ static async_cookie_t lowest_in_progress(struct async_domain *domain)
struct async_entry, global_list);
}
+ spin_unlock_irqrestore(&async_lock, flags);
if (first)
ret = first->cookie;
- spin_unlock_irqrestore(&async_lock, flags);
return ret;
}
--
2.25.1
^ permalink raw reply related [flat|nested] only message in thread
only message in thread, other threads:[~2020-10-15 14:06 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2020-10-15 14:05 [PATCH] async.c: reduce the critical region in lowest_in_progress() Hui Su
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox