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
..
array.c
base.c	Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2016-01-12 17:11:47 -08:00
cmdline.c
consoles.c
cpuinfo.c
devices.c
fd.c	proc: add a reschedule point in proc_readfd_common()	2016-01-09 02:56:10 -05:00
fd.h
generic.c
inode.c	kmemcg: account certain kmem allocations to memcg	2016-01-14 16:00:49 -08:00
internal.h
interrupts.c
Kconfig
kcore.c
kmsg.c
loadavg.c
Makefile
meminfo.c	proc: meminfo: estimate available memory more conservatively	2016-01-14 16:00:49 -08:00
namespaces.c	switch ->get_link() to delayed_call, kill ->put_link()	2015-12-30 13:01:03 -05:00
nommu.c
page.c	mm: differentiate page_mapped() from page_mapcount() for compound pages	2016-01-15 17:56:32 -08:00
proc_net.c
proc_sysctl.c
proc_tty.c
root.c
self.c	switch ->get_link() to delayed_call, kill ->put_link()	2015-12-30 13:01:03 -05:00
softirqs.c
stat.c
task_mmu.c	mm, thp: remove infrastructure for handling splitting PMDs	2016-01-15 17:56:32 -08:00
task_nommu.c
thread_self.c	switch ->get_link() to delayed_call, kill ->put_link()	2015-12-30 13:01:03 -05:00
uptime.c
version.c
vmcore.c