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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-07-26 15:24:12 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2016-07-26 16:19:19 -0700
commite77b0852b551ffd8b29fa0225e1ef62c195e3160 (patch)
treea9f49cde2ef4814f78423addd7af592c549a0403 /arch/um
parente9d55e157034a9efd99405c99c1565d64619d82b (diff)
downloadop-kernel-dev-e77b0852b551ffd8b29fa0225e1ef62c195e3160.zip
op-kernel-dev-e77b0852b551ffd8b29fa0225e1ef62c195e3160.tar.gz
mm/mmu_gather: track page size with mmu gather and force flush if page size change
This allows an arch which needs to do special handing with respect to different page size when flushing tlb to implement the same in mmu gather. Link: http://lkml.kernel.org/r/1465049193-22197-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Hugh Dickins <hughd@google.com> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Mel Gorman <mgorman@suse.de> Cc: David Rientjes <rientjes@google.com> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/include/asm/tlb.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/um/include/asm/tlb.h b/arch/um/include/asm/tlb.h
index 3dc4cbb..821ff0a 100644
--- a/arch/um/include/asm/tlb.h
+++ b/arch/um/include/asm/tlb.h
@@ -110,12 +110,24 @@ static inline void tlb_remove_page(struct mmu_gather *tlb, struct page *page)
__tlb_remove_page(tlb, page);
}
+static inline bool __tlb_remove_page_size(struct mmu_gather *tlb,
+ struct page *page, int page_size)
+{
+ return __tlb_remove_page(tlb, page);
+}
+
static inline bool __tlb_remove_pte_page(struct mmu_gather *tlb,
struct page *page)
{
return __tlb_remove_page(tlb, page);
}
+static inline void tlb_remove_page_size(struct mmu_gather *tlb,
+ struct page *page, int page_size)
+{
+ return tlb_remove_page(tlb, page);
+}
+
/**
* tlb_remove_tlb_entry - remember a pte unmapping for later tlb invalidation.
*
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