xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

locking/arch: Rename set_mb() to smp_store_mb()

Browse Source 
Since set_mb() is really about an smp_mb() -- not a IO/DMA barrier
like mb() rename it to match the recent smp_load_acquire() and
smp_store_release().

Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
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>
This commit is contained in:
Peter Zijlstra
2015-05-12 10:51:55 +02:00
committed by Ingo Molnar
parent ab3f02fc23
commit b92b8b35a2
18 changed files with 29 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/locking/qspinlock_paravirt.h
View File

@@ -175,7 +175,7 @@ static void pv_wait_node(struct mcs_spinlock *node)
*
* Matches the xchg() from pv_kick_node().
*/
set_mb(pn->state, vcpu_halted);
smp_store_mb(pn->state, vcpu_halted);
if (!READ_ONCE(node->locked))
pv_wait(&pn->state, vcpu_halted);