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Groups > linux.kernel > #1381297

[PATCH -tip 2/3] locking/pvqspinlock: Avoid double resetting of stats

From Davidlohr Bueso <dave@stgolabs.net>
Newsgroups linux.kernel
Subject [PATCH -tip 2/3] locking/pvqspinlock: Avoid double resetting of stats
Date 2016-04-18 08:40 +0200
Message-ID <rpb0L-WR-37@gated-at.bofh.it> (permalink)
References <rpb0J-WR-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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... remove the redundant second iteration, this is most
likely a copy/past buglet.

Signed-off-by: Davidlohr Bueso <dbueso@suse.de>
---
 kernel/locking/qspinlock_stat.h | 2 --
 1 file changed, 2 deletions(-)

diff --git a/kernel/locking/qspinlock_stat.h b/kernel/locking/qspinlock_stat.h
index d734b7502001..72722334237a 100644
--- a/kernel/locking/qspinlock_stat.h
+++ b/kernel/locking/qspinlock_stat.h
@@ -191,8 +191,6 @@ static ssize_t qstat_write(struct file *file, const char __user *user_buf,
 
 		for (i = 0 ; i < qstat_num; i++)
 			WRITE_ONCE(ptr[i], 0);
-		for (i = 0 ; i < qstat_num; i++)
-			WRITE_ONCE(ptr[i], 0);
 	}
 	return count;
 }
-- 
2.8.1

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Thread

[PATCH -tip 1/3] locking/pvqspinlock: Fix div by 0 in qstats Davidlohr Bueso <dave@stgolabs.net> - 2016-04-18 08:40 +0200
  [PATCH -tip 3/3] locking/pvqspinlock: Robustify init_qspinlock_stat() Davidlohr Bueso <dave@stgolabs.net> - 2016-04-18 08:40 +0200
    Re: [PATCH -tip 3/3] locking/pvqspinlock: Robustify  init_qspinlock_stat() Davidlohr Bueso <dave@stgolabs.net> - 2016-04-18 18:20 +0200
      [PATCH -tip v3 3/3] locking/pvqspinlock: Robustify  init_qspinlock_stat() Davidlohr Bueso <dave@stgolabs.net> - 2016-04-20 06:20 +0200
        Re: [PATCH -tip v3 3/3] locking/pvqspinlock: Robustify init_qspinlock_stat() Waiman Long <waiman.long@hpe.com> - 2016-04-20 22:10 +0200
      Re: [PATCH -tip v2] locking/pvqspinlock: Robustify  init_qspinlock_stat() Davidlohr Bueso <dave@stgolabs.net> - 2016-04-20 06:20 +0200
      [PATCH -tip v2] locking/pvqspinlock: Robustify init_qspinlock_stat() Davidlohr Bueso <dave@stgolabs.net> - 2016-04-20 06:20 +0200
    Re: [PATCH -tip 3/3] locking/pvqspinlock: Robustify init_qspinlock_stat() Waiman Long <waiman.long@hpe.com> - 2016-04-18 21:50 +0200
  [PATCH -tip 2/3] locking/pvqspinlock: Avoid double resetting of stats Davidlohr Bueso <dave@stgolabs.net> - 2016-04-18 08:40 +0200
    Re: [PATCH -tip 2/3] locking/pvqspinlock: Avoid double resetting  of stats Waiman Long <waiman.long@hpe.com> - 2016-04-18 22:20 +0200
  Re: [PATCH -tip 1/3] locking/pvqspinlock: Fix div by 0 in qstats Waiman Long <waiman.long@hpe.com> - 2016-04-18 21:40 +0200
  [tip:locking/urgent] locking/pvqspinlock: Fix division by zero in  qstat_read() tip-bot for Davidlohr Bueso <tipbot@zytor.com> - 2016-04-19 11:40 +0200

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