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authorCatalin Marinas <catalin.marinas@arm.com>2016-03-10 21:30:56 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2016-03-11 14:03:34 +0300
commit2f76969f2eef051bdd63d38b08d78e790440b0ad (patch)
tree6e013a0bdec33f3f7deb2a50273179048f88c78b
parentfdc69e7df3cb24f18a93192641786e5b7ecd1dfe (diff)
downloadlinux-2f76969f2eef051bdd63d38b08d78e790440b0ad.tar.xz
arm64: kasan: Use actual memory node when populating the kernel image shadow
With the 16KB or 64KB page configurations, the generic vmemmap_populate() implementation warns on potential offnode page_structs via vmemmap_verify() because the arm64 kasan_init() passes NUMA_NO_NODE instead of the actual node for the kernel image memory. Fixes: f9040773b7bb ("arm64: move kernel image to base of vmalloc area") Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: James Morse <james.morse@arm.com> Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Mark Rutland <mark.rutland@arm.com>
-rw-r--r--arch/arm64/mm/kasan_init.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/arm64/mm/kasan_init.c b/arch/arm64/mm/kasan_init.c
index 56e19d150c21..a164183f3481 100644
--- a/arch/arm64/mm/kasan_init.c
+++ b/arch/arm64/mm/kasan_init.c
@@ -152,7 +152,8 @@ void __init kasan_init(void)
clear_pgds(KASAN_SHADOW_START, KASAN_SHADOW_END);
- vmemmap_populate(kimg_shadow_start, kimg_shadow_end, NUMA_NO_NODE);
+ vmemmap_populate(kimg_shadow_start, kimg_shadow_end,
+ pfn_to_nid(virt_to_pfn(_text)));
/*
* vmemmap_populate() has populated the shadow region that covers the