[PATCH 1/3] mm: Silence vmap() allocation failures based on caller gfp_flags

From	Florian Fainelli <f.fainelli@gmail.com>
Newsgroups	linux.kernel
Subject	[PATCH 1/3] mm: Silence vmap() allocation failures based on caller gfp_flags
Date	2017-04-26 00:40 +0200
Message-ID	<tAhhM-2cM-17@gated-at.bofh.it> (permalink)
References	<tAhhL-2cM-9@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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If the caller has set __GFP_NOWARN don't print the following message:
vmap allocation for size 15736832 failed: use vmalloc=<size> to increase
size.

This can happen with the ARM/Linux module loader built with
CONFIG_ARM_MODULE_PLTS=y which does a first attempt at loading a large
module from module space, then falls back to vmalloc space.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
 mm/vmalloc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 0b057628a7ba..5a788eb58741 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -521,7 +521,7 @@ static struct vmap_area *alloc_vmap_area(unsigned long size,
 		}
 	}
 
-	if (printk_ratelimit())
+	if (printk_ratelimit() && !(gfp_mask & __GFP_NOWARN))
 		pr_warn("vmap allocation for size %lu failed: use vmalloc=<size> to increase size\n",
 			size);
 	kfree(va);
-- 
2.9.3

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[PATCH 1/3] mm: Silence vmap() allocation failures based on caller gfp_flags Florian Fainelli <f.fainelli@gmail.com> - 2017-04-26 00:40 +0200
  Re: [PATCH 1/3] mm: Silence vmap() allocation failures based on  caller gfp_flags Michal Hocko <mhocko@kernel.org> - 2017-04-27 16:50 +0200

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