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| author |   Peter Zijlstra <peterz@infradead.org> | 2016-05-24 13:17:12 +0200 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2016-06-14 11:55:14 +0200 |
| commit | 33ac279677dcc2441cb93d8cb9cf7a74df62814d (patch) | |
| tree | bcf918587b2425d1294b780b31ab67761e068e26 /virt | |
| parent | locking/barriers: Replace smp_cond_acquire() with smp_cond_load_acquire() (diff) | |
| download | wireguard-linux-33ac279677dcc2441cb93d8cb9cf7a74df62814d.tar.xz wireguard-linux-33ac279677dcc2441cb93d8cb9cf7a74df62814d.zip | |
locking/barriers: Introduce smp_acquire__after_ctrl_dep()
Introduce smp_acquire__after_ctrl_dep(), this construct is not
uncommon, but the lack of this barrier is.
Use it to better express smp_rmb() uses in WRITE_ONCE(), the IPC
semaphore code and the qspinlock code.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'virt')
0 files changed, 0 insertions, 0 deletions