From: Pavel Begunkov <asml.silence@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>,
Peter Zijlstra <peterz@infradead.org>,
Darren Hart <dvhart@infradead.org>,
Davidlohr Bueso <dave@stgolabs.net>
Subject: [PATCH for-next] futex: deduplicate resched in futex_wake_op()
Date: Mon, 17 May 2021 14:30:12 +0100 [thread overview]
Message-ID: <9b2588c1fd33c91fb01c4e348a3b647ab2c8baab.1621258128.git.asml.silence@gmail.com> (raw)
After pagefaulting in futex_wake_op() both branches do cond_resched()
before retry. Help to deduplicate it as many compilers can't cope with
it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
kernel/futex.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/kernel/futex.c b/kernel/futex.c
index c98b825da9cf..54ed232b2553 100644
--- a/kernel/futex.c
+++ b/kernel/futex.c
@@ -1728,12 +1728,9 @@ futex_wake_op(u32 __user *uaddr1, unsigned int flags, u32 __user *uaddr2,
return ret;
}
- if (!(flags & FLAGS_SHARED)) {
- cond_resched();
- goto retry_private;
- }
-
cond_resched();
+ if (!(flags & FLAGS_SHARED))
+ goto retry_private;
goto retry;
}
--
2.31.1
next reply other threads:[~2021-05-17 13:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-17 13:30 Pavel Begunkov [this message]
2021-05-20 18:16 ` Davidlohr Bueso
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