Kirill A. Shutemov e1534ae950 mm: differentiate page_mapped() from page_mapcount() for compound pages ...

Let's define page_mapped() to be true for compound pages if any
sub-pages of the compound page is mapped (with PMD or PTE).

On other hand page_mapcount() return mapcount for this particular small
page.

This will make cases like page_get_anon_vma() behave correctly once we
allow huge pages to be mapped with PTE.

Most users outside core-mm should use page_mapcount() instead of
page_mapped().

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Tested-by: Sasha Levin <sasha.levin@oracle.com>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Acked-by: Jerome Marchand <jmarchan@redhat.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Rik van Riel <riel@redhat.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Steve Capper <steve.capper@linaro.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Christoph Lameter <cl@linux.com>
Cc: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2016-01-15 17:56:32 -08:00

..

alignment.c

procfs: new helper - PDE_DATA(inode)

2013-04-09 14:13:32 -04:00

asids-debugfs.c

arch/sh/mm/asids-debugfs.c: use PTR_ERR_OR_ZERO

2014-08-06 18:01:12 -07:00

cache-debugfs.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh2.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh2a.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache-sh3.c

sh: Mass ctrl_in/outX to __raw_read/writeX conversion.

2010-01-26 12:58:40 +09:00

cache-sh4.c

mm: differentiate page_mapped() from page_mapcount() for compound pages

2016-01-15 17:56:32 -08:00

cache-sh5.c

tree-wide: fix comment/printk typos

2010-11-01 15:38:34 -04:00

cache-sh7705.c

sh: Assume new page cache pages have dirty dcache lines.

2010-12-01 15:39:51 +09:00

cache-shx3.c

sh: prefix sh-specific "CCR" and "CCR2" by "SH_"

2014-03-04 07:55:49 -08:00

cache.c

mm: differentiate page_mapped() from page_mapcount() for compound pages

2016-01-15 17:56:32 -08:00

consistent.c

SH: adapt for dma_map_ops changes

2012-03-28 16:36:37 +02:00

extable_32.c

sh: Split out extable.c _32 and _64 variants.

2008-01-28 13:18:44 +09:00

extable_64.c

sh: comment tidying for sh64->sh migration.

2008-01-28 13:18:58 +09:00

fault.c

mm/fault, arch: Use pagefault_disable() to check for disabled pagefaults in the handler

2015-05-19 08:39:15 +02:00

flush-sh4.c

sh: fix up fallout from system.h disintegration.

2012-03-30 19:29:57 +09:00

gup.c

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/borntraeger/linux

2015-02-14 10:54:28 -08:00

hugetlbpage.c

mm/hugetlb: reduce arch dependent code about huge_pmd_unshare

2015-06-24 17:49:41 -07:00

init.c

Merge tag 'libnvdimm-for-4.3' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm

2015-09-08 14:35:59 -07:00

ioremap_fixed.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

ioremap.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

Kconfig

memblock: kill "config MAX_ACTIVE_REGIONS"

2013-04-18 13:03:53 +10:00

kmap.c

sh: Assume new page cache pages have dirty dcache lines.

2010-12-01 15:39:51 +09:00

Makefile

sh64: Fix up caller-save register settings for fast-path.

2012-05-14 16:46:07 +09:00

mmap.c

Merge branch 'akpm' (Andrew's patchbomb)

2012-12-11 18:05:37 -08:00

nommu.c

sh: stub __flush_tlb_global() definition for nommu.

2010-08-16 14:53:01 +09:00

numa.c

sh: use PFN_DOWN macro

2015-09-04 16:54:41 -07:00

pgtable.c

include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h

2010-03-30 22:02:32 +09:00

pmb.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

sram.c

sh: fix up fallout from system.h disintegration.

2012-03-30 19:29:57 +09:00

tlb-debugfs.c

sh: provide generic arch_debugfs_dir.

2010-09-24 04:04:26 +09:00

tlb-pteaex.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

tlb-sh3.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

tlb-sh4.c

Disintegrate asm/system.h for SH

2012-03-28 18:30:03 +01:00

tlb-sh5.c

sh: delete __cpuinit usage from all sh files

2013-07-14 19:36:53 -04:00

tlb-urb.c

sh: update the TLB replacement counter for entry wiring.

2010-03-26 11:37:16 +09:00

tlbex_32.c

sh: Enable shared page fault handler for _32/_64.

2012-05-14 15:33:28 +09:00

tlbex_64.c

sh64: Set additional fault code values.

2012-05-14 17:46:49 +09:00

tlbflush_32.c

sh: Provide a global TLB flush for U/I-TLB clear.

2010-07-02 15:44:09 +09:00

tlbflush_64.c

sh64: Migrate to __update_tlb() API.

2012-05-14 15:52:28 +09:00

uncached.c

sh: nommu: use 32-bit phys mode.

2010-11-04 12:32:24 +09:00