Aneesh Kumar K.V 07e326610e mm: add tlb_remove_check_page_size_change to track page size change ... With commit e77b0852b5 ("mm/mmu_gather: track page size with mmu gather and force flush if page size change") we added the ability to force a tlb flush when the page size change in a mmu_gather loop. We did that by checking for a page size change every time we added a page to mmu_gather for lazy flush/remove. We can improve that by moving the page size change check early and not doing it every time we add a page. This also helps us to do tlb flush when invalidating a range covering dax mapping. Wrt dax mapping we don't have a backing struct page and hence we don't call tlb_remove_page, which earlier forced the tlb flush on page size change. Moving the page size change check earlier means we will do the same even for dax mapping. We also avoid doing this check on architecture other than powerpc. In a later patch we will remove page size check from tlb_remove_page(). Link: http://lkml.kernel.org/r/20161026084839.27299-5-aneesh.kumar@linux.vnet.ibm.com Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Ross Zwisler <ross.zwisler@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2016-12-12 18:55:07 -08:00
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hp	[kbuild] handle exports in lib-y objects reliably	2016-08-07 23:46:30 -04:00
include	mm: add tlb_remove_check_page_size_change to track page size change	2016-12-12 18:55:07 -08:00
kernel	sched/cputime, powerpc, s390: Make scaled cputime arch specific	2016-11-15 09:51:05 +01:00
lib	ia64: move exports to definitions	2016-08-07 23:55:50 -04:00
mm	mm: do not pass mm_struct into handle_mm_fault	2016-07-26 16:19:19 -07:00
oprofile
pci
scripts
sn	dma-mapping: use unsigned long for dma_attrs	2016-08-04 08:50:07 -04:00
uv
install.sh
Kconfig	Implements HARDENED_USERCOPY verification of copy_to_user/copy_from_user	2016-08-08 14:48:14 -07:00
Kconfig.debug
Makefile	kbuild: drop redundant "PHONY += FORCE"	2016-04-20 10:38:40 +02:00
module.lds