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authorKirill A. Shutemov <kirill.shutemov@linux.intel.com>2018-05-18 13:35:24 +0300
committerIngo Molnar <mingo@kernel.org>2018-05-19 11:56:57 +0200
commited7588d5dc6f5e7202fb9bbeb14d94706ba225d7 (patch)
tree359a4e804f7d677e83b0283975bb1bc39ae3ca56 /arch/x86/include/asm/pgalloc.h
parentad3fe525b9507d8d750d60e8e5dd8e0c0836fb99 (diff)
downloadlinux-0-day-ed7588d5dc6f5e7202fb9bbeb14d94706ba225d7.tar.gz
linux-0-day-ed7588d5dc6f5e7202fb9bbeb14d94706ba225d7.tar.xz
x86/mm: Stop pretending pgtable_l5_enabled is a variable
pgtable_l5_enabled is defined using cpu_feature_enabled() but we refer to it as a variable. This is misleading. Make pgtable_l5_enabled() a function. We cannot literally define it as a function due to circular dependencies between header files. Function-alike macros is close enough. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Cc: Hugh Dickins <hughd@google.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180518103528.59260-4-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/pgalloc.h')
-rw-r--r--arch/x86/include/asm/pgalloc.h4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/include/asm/pgalloc.h b/arch/x86/include/asm/pgalloc.h
index 263c142a6a6cd..ada6410fd2ecf 100644
--- a/arch/x86/include/asm/pgalloc.h
+++ b/arch/x86/include/asm/pgalloc.h
@@ -167,7 +167,7 @@ static inline void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud,
#if CONFIG_PGTABLE_LEVELS > 4
static inline void pgd_populate(struct mm_struct *mm, pgd_t *pgd, p4d_t *p4d)
{
- if (!pgtable_l5_enabled)
+ if (!pgtable_l5_enabled())
return;
paravirt_alloc_p4d(mm, __pa(p4d) >> PAGE_SHIFT);
set_pgd(pgd, __pgd(_PAGE_TABLE | __pa(p4d)));
@@ -193,7 +193,7 @@ extern void ___p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d);
static inline void __p4d_free_tlb(struct mmu_gather *tlb, p4d_t *p4d,
unsigned long address)
{
- if (pgtable_l5_enabled)
+ if (pgtable_l5_enabled())
___p4d_free_tlb(tlb, p4d);
}