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| author | Waiman Long <Waiman.Long@hp.com> | 2015-05-11 03:17:10 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-11 09:51:52 +0200 |
| commit | 52c9d2badd1ae4d11c29de57d4e964e48afd3cb4 (patch) | |
| tree | 00edebb52a79aec06420e26520d788d0e0373cbc /arch | |
| parent | locking/pvqspinlock, x86: Enable PV qspinlock for Xen (diff) | |
| download | linux-52c9d2badd1ae4d11c29de57d4e964e48afd3cb4.tar.xz linux-52c9d2badd1ae4d11c29de57d4e964e48afd3cb4.zip | |
locking/pvqspinlock: Replace xchg() by the more descriptive set_mb()
The xchg() function was used in pv_wait_node() to set a certain
value and provide a memory barrier which is what the set_mb()
function is for. This patch replaces the xchg() call by
set_mb().
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Waiman Long <Waiman.Long@hp.com>
Cc: Douglas Hatch <doug.hatch@hp.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Scott J Norton <scott.norton@hp.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch')
0 files changed, 0 insertions, 0 deletions