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e1534ae950
linux_dsm_epyc7002/arch/mips/mm
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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
..
c-octeon.c MIPS: Call find_vma with the mmap_sem held 2014-06-03 22:19:09 +02:00
c-r3k.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
c-r4k.c mm: differentiate page_mapped() from page_mapcount() for compound pages 2016-01-15 17:56:32 -08:00
c-tx39.c MIPS: tlb-r3k: Move CP0.Wired register initialisation to `tlb_init' 2015-06-21 21:52:41 +02:00
cache.c mm: differentiate page_mapped() from page_mapcount() for compound pages 2016-01-15 17:56:32 -08:00
cerr-sb1.c MIPS: Sibyte: Fix build for SIBYTE_BW_TRACE on BCM1x55 and BCM1x80. 2013-06-21 18:07:02 +02:00
cex-gen.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cex-oct.S MIPS: Whitespace cleanup. 2013-02-01 10:00:22 +01:00
cex-sb1.S mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
dma-default.c MIPS: fix DMA contiguous allocation 2015-12-12 10:15:34 -08:00
extable.c MIPS: Eleminate filenames from comments 2009-08-03 17:52:40 +01:00
fault.c MIPS: Set trap_no field in thread_struct on exception. 2015-09-03 12:08:04 +02:00
gup.c mips, thp: remove infrastructure for handling splitting PMDs 2016-01-15 17:56:32 -08:00
highmem.c kmap_atomic_to_page() has no users, remove it 2015-11-09 15:11:24 -08:00
hugetlbpage.c mm/hugetlb: reduce arch dependent code about huge_pmd_unshare 2015-06-24 17:49:41 -07:00
init.c mm: differentiate page_mapped() from page_mapcount() for compound pages 2016-01-15 17:56:32 -08:00
ioremap.c MIPS: Replace use of phys_t with phys_addr_t. 2014-11-24 22:47:31 +01:00
Makefile MIPS: Allow L2 prefetch to be configured via debugfs 2015-10-26 09:49:42 +01:00
mmap.c mm: expose arch_mmap_rnd when available 2015-04-14 16:49:05 -07:00
page-funcs.S MIPS: Refactor 'clear_page' and 'copy_page' functions. 2012-07-19 11:23:43 +02:00
page.c MIPS: Add R16000 detection 2015-04-01 17:22:13 +02:00
pgtable-32.c MIPS: Limit fixrange_init() to the FIXMAP region 2011-07-25 17:26:54 +01:00
pgtable-64.c mips, thp: remove infrastructure for handling splitting PMDs 2016-01-15 17:56:32 -08:00
sc-debugfs.c MIPS: Allow L2 prefetch to be configured via debugfs 2015-10-26 09:49:42 +01:00
sc-ip22.c MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code 2013-07-14 19:36:51 -04:00
sc-mips.c MIPS: Enable L2 prefetching for CM >= 2.5 2015-10-26 09:49:41 +01:00
sc-r5k.c MIPS: Remove useless parentheses 2014-11-24 07:44:49 +01:00
sc-rm7k.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
tlb-funcs.S MIPS: mm: Fix broken microMIPS kernel regression. 2014-05-14 18:11:06 +02:00
tlb-r3k.c MIPS: Refactor dumping of TLB registers for r3k/r4k 2015-09-03 12:07:45 +02:00
tlb-r4k.c MIPS: BCM77xx: Remove legacy __cpuinit{,data} sections that crept in 2015-06-21 21:53:42 +02:00
tlb-r8k.c mips: delete non-required instances of include <linux/init.h> 2014-01-24 22:39:56 +01:00
tlbex-fault.S MIPS: Don't include <asm/page.h> unnecessarily. 2012-12-28 17:04:04 +01:00
tlbex.c mips, thp: remove infrastructure for handling splitting PMDs 2016-01-15 17:56:32 -08:00
uasm-micromips.c MIPS: mm: Remove dead macro definitions 2015-02-20 23:42:00 +01:00
uasm-mips.c MIPS: mm: Remove dead macro definitions 2015-02-20 23:42:00 +01:00
uasm.c MIPS: OCTEON: Implement DCache errata workaround for all CN6XXX 2015-02-20 15:31:27 +01:00