[tip:tracing/urgent] profile: Suppress warning about large allocations when profile=1 is specified

From: tip-bot for Mel Gorman
Date: Sat Jul 18 2009 - 06:59:03 EST


Commit-ID: e5d490b252423605a77c54b2e35b10ea663763df
Gitweb: http://git.kernel.org/tip/e5d490b252423605a77c54b2e35b10ea663763df
Author: Mel Gorman <mel@xxxxxxxxx>
AuthorDate: Wed, 15 Jul 2009 12:23:11 +0100
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Sat, 18 Jul 2009 12:55:28 +0200

profile: Suppress warning about large allocations when profile=1 is specified

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@xxxxxxxxx>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: Linux Memory Management List <linux-mm@xxxxxxxxx>
Cc: Heinz Diehl <htd@xxxxxxxxxxxxxxxxx>
Cc: David Miller <davem@xxxxxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Mel Gorman <mel@xxxxxxxxx>
Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
LKML-Reference: <1247656992-19846-3-git-send-email-mel@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>


---
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;

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