linux/arch/ia64
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
..
configs [IA64] refresh arch/ia64/configs/* using "make savedefconfig" 2014-09-23 11:09:29 -07:00
dig Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
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 Disintegrate asm/system.h for IA64 2012-03-28 18:30:02 +01:00
pci PCI: Set ROM shadow location in arch code, not in PCI core 2016-03-08 12:14:31 -06:00
scripts ia64: remove paravirt code 2015-06-10 14:26:32 -07:00
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