From: Florian Fainelli <f.fainelli@gmail.com>
Date: Thu, 27 Apr 2017 18:19:00 +0000 (-0700)
Subject: mm: Silence vmap() allocation failures based on caller gfp_flags
X-Git-Tag: v4.12-rc1~21^2~2
X-Git-Url: https://git.kernelconcepts.de/?p=karo-tx-linux.git;a=commitdiff_plain;h=03497d761c55438144fd63534d4223418fdfd345

mm: Silence vmap() allocation failures based on caller gfp_flags

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 or ARM64/Linux module loader built
with CONFIG_ARM{,64}_MODULE_PLTS=y which does a first attempt at loading
a large module from module space, then falls back to vmalloc space.

Acked-by: Michal Hocko <mhocko@suse.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
---

diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 0b057628a7ba..b74f1d01ef76 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -521,7 +521,7 @@ overflow:
 		}
 	}
 
-	if (printk_ratelimit())
+	if (!(gfp_mask & __GFP_NOWARN) && printk_ratelimit())
 		pr_warn("vmap allocation for size %lu failed: use vmalloc=<size> to increase size\n",
 			size);
 	kfree(va);