From: Tejun Heo <tj@kernel.org>
To: Stephane Eranian <eranian@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>,
Eric Dumazet <eric.dumazet@gmail.com>,
linux-kernel@vger.kernel.org, mingo@elte.hu, paulus@samba.org,
davem@davemloft.net, fweisbec@gmail.com,
perfmon2-devel@lists.sf.net, eranian@gmail.com,
robert.richter@amd.com, acme@redhat.com
Subject: [PATCH] percpu: update comments to reflect that percpu allocations are always zero-filled
Date: Fri, 10 Sep 2010 11:03:57 +0200 [thread overview]
Message-ID: <4C89F47D.20309@kernel.org> (raw)
In-Reply-To: <AANLkTi=7PJPCwrnK+4ejX7RHC-sautVgK-_+kpoT27k5@mail.gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephane Eranian <eranian@google.com>
---
mm/percpu.c | 11 ++++++-----
1 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/mm/percpu.c b/mm/percpu.c
index 0cd4bf6..12dea33 100644
--- a/mm/percpu.c
+++ b/mm/percpu.c
@@ -826,8 +826,8 @@ fail_unlock_mutex:
* @size: size of area to allocate in bytes
* @align: alignment of area (max PAGE_SIZE)
*
- * Allocate percpu area of @size bytes aligned at @align. Might
- * sleep. Might trigger writeouts.
+ * Allocate zero-filled percpu area of @size bytes aligned at @align.
+ * Might sleep. Might trigger writeouts.
*
* CONTEXT:
* Does GFP_KERNEL allocation.
@@ -846,9 +846,10 @@ EXPORT_SYMBOL_GPL(__alloc_percpu);
* @size: size of area to allocate in bytes
* @align: alignment of area (max PAGE_SIZE)
*
- * Allocate percpu area of @size bytes aligned at @align from reserved
- * percpu area if arch has set it up; otherwise, allocation is served
- * from the same dynamic area. Might sleep. Might trigger writeouts.
+ * Allocate zero-filled percpu area of @size bytes aligned at @align
+ * from reserved percpu area if arch has set it up; otherwise,
+ * allocation is served from the same dynamic area. Might sleep.
+ * Might trigger writeouts.
*
* CONTEXT:
* Does GFP_KERNEL allocation.
--
1.7.1
next prev parent reply other threads:[~2010-09-10 9:04 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-09 13:09 [RFC PATCH 1/2] perf_events: add support for per-cpu per-cgroup monitoring (v3) Stephane Eranian
2010-09-09 13:52 ` Eric Dumazet
2010-09-09 21:41 ` Stephane Eranian
2010-09-10 8:16 ` Peter Zijlstra
2010-09-10 8:41 ` Tejun Heo
2010-09-10 8:52 ` [PATCH percpu#for-next] percpu: clear memory allocated with the km allocator Tejun Heo
2010-09-10 8:55 ` Peter Zijlstra
2010-09-10 16:31 ` Randy Dunlap
2010-09-10 16:45 ` Ingo Molnar
2010-09-10 23:28 ` Tejun Heo
2010-09-10 8:59 ` [RFC PATCH 1/2] perf_events: add support for per-cpu per-cgroup monitoring (v3) Stephane Eranian
2010-09-10 9:03 ` Tejun Heo [this message]
2010-09-10 9:07 ` [PATCH] percpu: update comments to reflect that percpu allocations are always zero-filled Stephane Eranian
2010-09-10 9:09 ` Eric Dumazet
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