[PATCH mm v5 18/39] kasan, vmalloc: drop outdated VM_KASAN comment
From: <hidden>
Date: 2021-12-30 19:13:52
Also in:
linux-mm, lkml
Subsystem:
the rest, vmalloc · Maintainers:
Linus Torvalds, Andrew Morton, Uladzislau Rezki
From: Andrey Konovalov <redacted> The comment about VM_KASAN in include/linux/vmalloc.c is outdated. VM_KASAN is currently only used to mark vm_areas allocated for kernel modules when CONFIG_KASAN_VMALLOC is disabled. Drop the comment. Signed-off-by: Andrey Konovalov <redacted> Reviewed-by: Alexander Potapenko <glider@google.com> --- include/linux/vmalloc.h | 11 ----------- 1 file changed, 11 deletions(-)
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index cde400a9fd87..34ac66a656d4 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h@@ -35,17 +35,6 @@ struct notifier_block; /* in notifier.h */ #define VM_DEFER_KMEMLEAK 0 #endif -/* - * VM_KASAN is used slightly differently depending on CONFIG_KASAN_VMALLOC. - * - * If IS_ENABLED(CONFIG_KASAN_VMALLOC), VM_KASAN is set on a vm_struct after - * shadow memory has been mapped. It's used to handle allocation errors so that - * we don't try to poison shadow on free if it was never allocated. - * - * Otherwise, VM_KASAN is set for kasan_module_alloc() allocations and used to - * determine which allocations need the module shadow freed. - */ - /* bits [20..32] reserved for arch specific ioremap internals */ /*
--
2.25.1
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