e1534ae950
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> |
||
|---|---|---|
| .. | ||
| alignment.c | ||
| asids-debugfs.c | ||
| cache-debugfs.c | ||
| cache-sh2.c | ||
| cache-sh2a.c | ||
| cache-sh3.c | ||
| cache-sh4.c | ||
| cache-sh5.c | ||
| cache-sh7705.c | ||
| cache-shx3.c | ||
| cache.c | ||
| consistent.c | ||
| extable_32.c | ||
| extable_64.c | ||
| fault.c | ||
| flush-sh4.c | ||
| gup.c | ||
| hugetlbpage.c | ||
| init.c | ||
| ioremap.c | ||
| ioremap_fixed.c | ||
| Kconfig | ||
| kmap.c | ||
| Makefile | ||
| mmap.c | ||
| nommu.c | ||
| numa.c | ||
| pgtable.c | ||
| pmb.c | ||
| sram.c | ||
| tlb-debugfs.c | ||
| tlb-pteaex.c | ||
| tlb-sh3.c | ||
| tlb-sh4.c | ||
| tlb-sh5.c | ||
| tlb-urb.c | ||
| tlbex_32.c | ||
| tlbex_64.c | ||
| tlbflush_32.c | ||
| tlbflush_64.c | ||
| uncached.c | ||