From: Mike Rapoport <rppt@linux.ibm.com>
Date: Tue, 18 Jun 2019 07:32:29 +0000 (+0300)
Subject: arm64/mm: don't initialize pgd_cache twice
X-Git-Tag: v5.2-rc6~20^2
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=615c48ad8f4275b4d39fa57df68d4015078be201;p=linux.git

arm64/mm: don't initialize pgd_cache twice

When PGD_SIZE != PAGE_SIZE, arm64 uses kmem_cache for allocation of PGD
memory. That cache was initialized twice: first through
pgtable_cache_init() alias and then as an override for weak
pgd_cache_init().

Remove the alias from pgtable_cache_init() and keep the only pgd_cache
initialization in pgd_cache_init().

Fixes: caa841360134 ("x86/mm: Initialize PGD cache during mm initialization")
Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
---

diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 2c41b04708fe..851c68dc6d61 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -812,8 +812,7 @@ extern int kern_addr_valid(unsigned long addr);
 
 #include <asm-generic/pgtable.h>
 
-void pgd_cache_init(void);
-#define pgtable_cache_init	pgd_cache_init
+static inline void pgtable_cache_init(void) { }
 
 /*
  * On AArch64, the cache coherency is handled via the set_pte_at() function.