summaryrefslogtreecommitdiff
path: root/arch/x86/kernel/ldt.c
diff options
context:
space:
mode:
authorRik van Riel <riel@surriel.com>2018-09-26 06:58:42 +0300
committerPeter Zijlstra <peterz@infradead.org>2018-10-09 17:51:12 +0300
commit016c4d92cd16f569c6485ae62b076c1a4b779536 (patch)
treeb734bacfc71fe52ac281da272536d5156ec8a252 /arch/x86/kernel/ldt.c
parent7d49b28a80b830c3ca876d33bedc58d62a78e16f (diff)
downloadlinux-016c4d92cd16f569c6485ae62b076c1a4b779536.tar.xz
x86/mm/tlb: Add freed_tables argument to flush_tlb_mm_range
Add an argument to flush_tlb_mm_range to indicate whether page tables are about to be freed after this TLB flush. This allows for an optimization of flush_tlb_mm_range to skip CPUs in lazy TLB mode. No functional changes. Cc: npiggin@gmail.com Cc: mingo@kernel.org Cc: will.deacon@arm.com Cc: songliubraving@fb.com Cc: kernel-team@fb.com Cc: luto@kernel.org Cc: hpa@zytor.com Signed-off-by: Rik van Riel <riel@surriel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: http://lkml.kernel.org/r/20180926035844.1420-6-riel@surriel.com
Diffstat (limited to 'arch/x86/kernel/ldt.c')
-rw-r--r--arch/x86/kernel/ldt.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c
index 7fdb2414ca65..ab18e0884dc6 100644
--- a/arch/x86/kernel/ldt.c
+++ b/arch/x86/kernel/ldt.c
@@ -273,7 +273,7 @@ map_ldt_struct(struct mm_struct *mm, struct ldt_struct *ldt, int slot)
map_ldt_struct_to_user(mm);
va = (unsigned long)ldt_slot_va(slot);
- flush_tlb_mm_range(mm, va, va + LDT_SLOT_STRIDE, PAGE_SHIFT);
+ flush_tlb_mm_range(mm, va, va + LDT_SLOT_STRIDE, PAGE_SHIFT, false);
ldt->slot = slot;
return 0;