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arch: Mass conversion of smp_mb__*()

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Mostly scripted conversion of the smp_mb__* barriers.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-55dhyhocezdw1dg7u19hmh1u@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: linux-arch@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra 2014-03-17 18:06:10 +01:00 • committed by Ingo Molnar
parent 1b15611e1c
commit 4e857c58ef
106 changed files with 284 additions and 288 deletions
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4
net/ipv4/tcp_output.c
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@ -1930,10 +1930,8 @@ static bool tcp_write_xmit(struct sock *sk, unsigned int mss_now, int nonagle,
/* It is possible TX completion already happened
* before we set TSQ_THROTTLED, so we must
* test again the condition.
* We abuse smp_mb__after_clear_bit() because
* there is no smp_mb__after_set_bit() yet
*/
smp_mb__after_clear_bit();
smp_mb__after_atomic();
if (atomic_read(&sk->sk_wmem_alloc) > limit)
break;
}