Commit 28c6fbc3 authored Oct 06, 2015 by Will Deacon Committed by Catalin Marinas Oct 07, 2015

arm64: tlb: remove redundant barrier from __flush_tlb_pgtable



__flush_tlb_pgtable is used to invalidate intermediate page table
entries after they have been cleared and are about to be freed. Since
pXd_clear imply memory barriers, we don't need the extra one here.

Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

parent 38d96287

arch/arm64/include/asm/tlbflush.h

+0 −1

Original line number	Diff line number	Diff line
		@@ -163,7 +163,6 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
		{
		unsigned long addr = uaddr >> 12 \| (ASID(mm) << 48);

		dsb(ishst);
		asm("tlbi vae1is, %0" : : "r" (addr));
		dsb(ish);
		}