Commit ddd32b42 authored Nov 13, 2012 by Joonsoo Kim Committed by H. Peter Anvin Nov 14, 2012

x86, mm: Correct vmflag test for checking VM_HUGETLB



commit 611ae8e3('enable tlb flush range
support for x86') change flush_tlb_mm_range() considerably. After this,
we test whether vmflag equal to VM_HUGETLB and it may be always failed,
because vmflag usually has other flags simultaneously.
Our intention is to check whether this vma is for hughtlb, so correct it
according to this purpose.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Acked-by: Alex Shi <alex.shi@intel.com>
Link: http://lkml.kernel.org/r/1352740656-19417-1-git-send-email-js1304@gmail.com


Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

parent 226f69a4

arch/x86/mm/tlb.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -197,7 +197,7 @@ void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start,
		}

		if (end == TLB_FLUSH_ALL \|\| tlb_flushall_shift == -1
		\|\| vmflag == VM_HUGETLB) {
		\|\| vmflag & VM_HUGETLB) {
		local_flush_tlb();
		goto flush_all;
		}

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