From: Monam Agarwal <monamagarwal123@gmail.com>
To: arnd@arndb.de, benh@kernel.crashing.org, paulus@samba.or,
linuxppc-dev@lists.ozlabs.org, cbe-oss-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org
Subject: [PATCH] arch/powerpc: Use RCU_INIT_POINTER(x, NULL) in platforms/cell/spu_syscalls.c
Date: Sat, 22 Mar 2014 12:20:56 +0530 [thread overview]
Message-ID: <1395471056-2951-1-git-send-email-monamagarwal123@gmail.com> (raw)
Here rcu_assign_pointer() is ensuring that the
initialization of a structure is carried out before storing a pointer
to that structure.
So, rcu_assign_pointer(p, NULL) can always safely be converted to
RCU_INIT_POINTER(p, NULL).
Signed-off-by: Monam Agarwal <monamagarwal123@gmail.com>
---
arch/powerpc/platforms/cell/spu_syscalls.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 3844f13..38e0a1a 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -170,7 +170,7 @@ EXPORT_SYMBOL_GPL(register_spu_syscalls);
void unregister_spu_syscalls(struct spufs_calls *calls)
{
BUG_ON(spufs_calls->owner != calls->owner);
- rcu_assign_pointer(spufs_calls, NULL);
+ RCU_INIT_POINTER(spufs_calls, NULL);
synchronize_rcu();
}
EXPORT_SYMBOL_GPL(unregister_spu_syscalls);
--
1.7.9.5
reply other threads:[~2014-03-22 6:50 UTC|newest]
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