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@csn.ul.ie>
Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Linux Memory Management List <linux-mm@kvack.org>
Cc: Heinz Diehl <htd@fancy-poultry.org>
Cc: David Miller <davem@davemloft.net>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrew Morton <akpm@linux-foundation.org>
LKML-Reference: <1247656992-19846-3-git-send-email-mel@csn.ul.ie>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

diff --git a/kernel/profile.c b/kernel/profile.c
index 69911b5745eb1a9fd406e7bf3ef4a653033898a2..419250ebec4d63b913130a2f533cc2adf95f359a 100644 (file)
--- 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;