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From: Mel Gorman <mel@csn.ul.ie>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org,
	Linux Memory Management List <linux-mm@kvack.org>,
	Heinz Diehl <htd@fancy-poultry.org>, Mel Gorman <mel@csn.ul.ie>
Subject: [PATCH 2/3] profile: Suppress warning about large allocations when profile=1 is specified
Date: Mon, 22 Jun 2009 16:43:33 +0100	[thread overview]
Message-ID: <1245685414-8979-3-git-send-email-mel@csn.ul.ie> (raw)
In-Reply-To: <1245685414-8979-1-git-send-email-mel@csn.ul.ie>

When profile= is used, a large buffer is allocated early at boot. This
can be larger than what the page allocator can provide so it prints a
warning. However, the caller is able to handle the situation so this patch
suppresses the warning.

Signed-off-by: Mel Gorman <mel@csn.ul.ie>
---
 kernel/profile.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/kernel/profile.c b/kernel/profile.c
index 69911b5..419250e 100644
--- a/kernel/profile.c
+++ b/kernel/profile.c
@@ -117,11 +117,12 @@ int __ref profile_init(void)
 
 	cpumask_copy(prof_cpu_mask, cpu_possible_mask);
 
-	prof_buffer = kzalloc(buffer_bytes, GFP_KERNEL);
+	prof_buffer = kzalloc(buffer_bytes, GFP_KERNEL|__GFP_NOWARN);
 	if (prof_buffer)
 		return 0;
 
-	prof_buffer = alloc_pages_exact(buffer_bytes, GFP_KERNEL|__GFP_ZERO);
+	prof_buffer = alloc_pages_exact(buffer_bytes,
+					GFP_KERNEL|__GFP_ZERO|__GFP_NOWARN);
 	if (prof_buffer)
 		return 0;
 
-- 
1.5.6.5

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  parent reply	other threads:[~2009-06-22 15:42 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-06-22 15:43 [PATCH 0/3] Suppress page allocator warnings about order >= MAX_ORDER Mel Gorman
2009-06-22 15:43 ` [PATCH 1/3] page-allocator: Allow too high-order warning messages to be suppressed with __GFP_NOWARN Mel Gorman
2009-06-22 15:43 ` Mel Gorman [this message]
2009-06-22 15:43 ` [PATCH 3/3] net-dccp: Suppress warning about large allocations from DCCP Mel Gorman
2009-06-22 23:15   ` David Miller
2009-06-23  2:39     ` Arnaldo Carvalho de Melo
2009-06-23  4:19       ` David Miller
2009-06-23 11:03         ` Eric Dumazet
2009-06-23 11:05           ` David Miller
2009-06-23 13:42             ` Arnaldo Carvalho de Melo
2009-06-23  8:48     ` Mel Gorman
  -- strict thread matches above, loose matches on Subject: below --
2009-07-15 11:23 [PATCH 0/3] Suppress page allocator warnings about order >= MAX_ORDER (resend) Mel Gorman
2009-07-15 11:23 ` [PATCH 2/3] profile: Suppress warning about large allocations when profile=1 is specified Mel Gorman
2009-07-16  1:12   ` KOSAKI Motohiro
2009-07-16 10:37     ` Mel Gorman
2009-07-16 23:43       ` KOSAKI Motohiro

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