From: Jinbum Park <jinb.park7@gmail.com>
Date: Wed, 22 Nov 2017 12:43:59 +0000 (+0900)
Subject: arm64: pgd: Mark pgd_cache as __ro_after_init
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a349b30250634da20950eb91e2551dcd81f1805d;p=linux.git

arm64: pgd: Mark pgd_cache as __ro_after_init

pgd_cache is setup once while init stage and never changed after
that, so it is good candidate for __ro_after_init

Signed-off-by: Jinbum Park <jinb.park7@gmail.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c
index 371c5f03a1708..051e71ec3335e 100644
--- a/arch/arm64/mm/pgd.c
+++ b/arch/arm64/mm/pgd.c
@@ -26,7 +26,7 @@
 #include <asm/page.h>
 #include <asm/tlbflush.h>
 
-static struct kmem_cache *pgd_cache;
+static struct kmem_cache *pgd_cache __ro_after_init;
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {