Cyrill Gorcunov d9104d1ca9 mm: track vma changes with VM_SOFTDIRTY bit ... Pavel reported that in case if vma area get unmapped and then mapped (or expanded) in-place, the soft dirty tracker won't be able to recognize this situation since it works on pte level and ptes are get zapped on unmap, loosing soft dirty bit of course. So to resolve this situation we need to track actions on vma level, there VM_SOFTDIRTY flag comes in. When new vma area created (or old expanded) we set this bit, and keep it here until application calls for clearing soft dirty bit. Thus when user space application track memory changes now it can detect if vma area is renewed. Reported-by: Pavel Emelyanov <xemul@parallels.com> Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Matt Mackall <mpm@selenic.com> Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com> Cc: Marcelo Tosatti <mtosatti@redhat.com> Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com> Cc: Rob Landley <rob@landley.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2013-09-11 15:57:56 -07:00
..
backing-dev.c	backing-dev: convert class code to use dev_groups	2013-08-19 21:22:34 -07:00
balloon_compaction.c	mm: introduce a common interface for balloon pages mobility	2012-12-11 17:22:26 -08:00
bootmem.c	mm: kill free_all_bootmem_node()	2013-07-03 16:07:39 -07:00
bounce.c	Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block	2013-05-08 10:13:35 -07:00
cleancache.c	mm: cleancache: clean up cleancache_enabled	2013-04-30 17:04:01 -07:00
compaction.c	mm: compaction: do not compact pgdat for order-0	2013-09-11 15:57:55 -07:00
debug-pagealloc.c
dmapool.c	dmapool: make DMAPOOL_DEBUG detect corruption of free marker	2012-12-11 17:22:24 -08:00
fadvise.c	teach SYSCALL_DEFINE<n> how to deal with long long/unsigned long long	2013-03-03 22:46:22 -05:00
failslab.c
filemap.c	direct-io: Handle O_(D)SYNC AIO	2013-09-04 09:23:46 -04:00
filemap_xip.c	lift sb_start_write() out of ->write()	2013-04-09 14:12:56 -04:00
fremap.c	mm: save soft-dirty bits on file pages	2013-08-13 17:57:48 -07:00
frontswap.c	frontswap: fix incorrect zeroing and allocation size for frontswap_map	2013-06-12 16:29:46 -07:00
highmem.c	Some nice cleanups, and even a patch my wife did as a "live" demo for	2012-12-20 08:37:05 -08:00
huge_memory.c	mm/huge_memory.c: fix potential NULL pointer dereference	2013-09-11 15:57:19 -07:00
hugetlb.c	mm: prepare to remove /proc/sys/vm/hugepages_treat_as_movable	2013-09-11 15:57:49 -07:00
hugetlb_cgroup.c	cgroup: pass around cgroup_subsys_state instead of cgroup in file methods	2013-08-08 20:11:24 -04:00
hwpoison-inject.c
init-mm.c
internal.h	mm: remove unused __put_page()	2013-07-09 10:33:22 -07:00
interval_tree.c
Kconfig	Merge remote-tracking branch 'origin/next' into kvm-ppc-next	2013-08-29 00:41:59 +02:00
Kconfig.debug
kmemcheck.c
kmemleak-test.c
kmemleak.c	mm: replace strict_strtoul() with kstrtoul()	2013-09-11 15:57:11 -07:00
ksm.c	mm: replace strict_strtoul() with kstrtoul()	2013-09-11 15:57:11 -07:00
maccess.c
madvise.c	mm/madvise.c: fix coding-style errors	2013-09-11 15:57:00 -07:00
Makefile	zswap: add to mm/	2013-07-10 18:11:34 -07:00
memblock.c	memblock, numa: binary search node id	2013-09-11 15:57:51 -07:00
memcontrol.c	kmemcg: don't allocate extra memory for root memcg_cache_params	2013-09-11 15:57:53 -07:00
memory-failure.c	mm: soft-offline: use migrate_pages() instead of migrate_huge_page()	2013-09-11 15:57:47 -07:00
memory.c	mm: migrate: add hugepage migration code to move_pages()	2013-09-11 15:57:48 -07:00
memory_hotplug.c	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
mempolicy.c	mbind: add BUG_ON(!vma) in new_vma_page()	2013-09-11 15:57:50 -07:00
mempool.c
migrate.c	mm: migrate: check movability of hugepage in unmap_and_move_huge_page()	2013-09-11 15:57:49 -07:00
mincore.c	swap: make each swap partition have one address_space	2013-02-23 17:50:17 -08:00
mlock.c	Revert "mm: introduce VM_POPULATE flag to better deal with racy userspace programs"	2013-03-28 17:45:51 -07:00
mm_init.c	mm: tune vm_committed_as percpu_counter batching size	2013-07-03 16:07:32 -07:00
mmap.c	mm: track vma changes with VM_SOFTDIRTY bit	2013-09-11 15:57:56 -07:00
mmu_context.c	mm: remove old aio use_mm() comment	2013-05-07 18:38:27 -07:00
mmu_notifier.c	treewide: relase -> release	2013-06-28 14:34:33 +02:00
mmzone.c	mm: rename page struct field helpers	2013-02-23 17:50:18 -08:00
mprotect.c	mm/mprotect.c: coding-style cleanups	2012-12-18 15:02:15 -08:00
mremap.c	mm: move_ptes -- Set soft dirty bit depending on pte type	2013-08-27 09:36:17 -07:00
msync.c
nobootmem.c	mm: concentrate modification of totalram_pages into the mm core	2013-07-03 16:07:33 -07:00
nommu.c	mm: remove free_area_cache	2013-07-10 18:11:34 -07:00
oom_kill.c	mm/oom_kill: remove weird use of ERR_PTR()/PTR_ERR().	2013-07-15 11:25:05 +09:30
page-writeback.c	mm: revert "page-writeback.c: subtract min_free_kbytes from dirtyable memory"	2013-09-11 15:57:23 -07:00
page_alloc.c	mm: page_alloc: fix comment get_page_from_freelist	2013-09-11 15:57:56 -07:00
page_cgroup.c	memcontrol: use N_MEMORY instead N_HIGH_MEMORY	2012-12-12 17:38:32 -08:00
page_io.c	mm: remove compressed copy from zram in-memory	2013-07-03 16:07:26 -07:00
page_isolation.c	mm: memory-hotplug: enable memory hotplug to handle hugepage	2013-09-11 15:57:48 -07:00
pagewalk.c	mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas	2013-05-24 16:22:53 -07:00
percpu-km.c
percpu-vm.c
percpu.c
pgtable-generic.c	mm: move pgtable related functions to right place	2013-09-11 15:57:30 -07:00
process_vm_access.c	Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys	2013-03-12 11:05:45 -07:00
quicklist.c
readahead.c	readahead: make context readahead more conservative	2013-09-11 15:57:39 -07:00
rmap.c	s390/mm: implement software referenced bits	2013-08-29 13:20:11 +02:00
shmem.c	shm_mnt is as longterm as it gets, TYVM...	2013-09-03 22:50:27 -04:00
slab.c	kernel: delete __cpuinit usage from all core kernel files	2013-07-14 19:36:59 -04:00
slab.h	memcg: check that kmem_cache has memcg_params before accessing it	2013-08-28 19:26:38 -07:00
slab_common.c	Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-07-14 15:14:29 -07:00
slob.c	Merge branch 'slab/for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux	2013-07-14 15:14:29 -07:00
slub.c	mm: replace strict_strtoul() with kstrtoul()	2013-09-11 15:57:11 -07:00
sparse-vmemmap.c	sparse-vmemmap: specify vmemmap population range in bytes	2013-04-29 15:54:35 -07:00
sparse.c	mm/sparse.c: put clear_hwpoisoned_pages within CONFIG_MEMORY_HOTREMOVE	2013-07-09 10:33:22 -07:00
swap.c	mm: fix aio performance regression for database caused by THP	2013-09-11 15:57:55 -07:00
swap_state.c	swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion	2013-06-12 16:29:45 -07:00
swapfile.c	swap: make cluster allocation per-cpu	2013-09-11 15:57:17 -07:00
truncate.c	mm: teach truncate_inode_pages_range() to handle non page aligned ranges	2013-05-27 23:32:35 -04:00
util.c	swap: clean-up #ifdef in page_mapping()	2013-09-11 15:57:31 -07:00
vmalloc.c	mm, vmalloc: use well-defined find_last_bit() func	2013-09-11 15:57:34 -07:00
vmpressure.c	Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup	2013-09-03 18:25:03 -07:00
vmscan.c	mm: vmscan: fix numa reclaim balance problem in kswapd	2013-09-11 15:57:22 -07:00
vmstat.c	vmstat: use this_cpu() to avoid irqon/off sequence in refresh_cpu_vm_stats	2013-09-11 15:57:31 -07:00
zbud.c	mm/zbud: fix some trivial typos in comments	2013-09-11 15:57:35 -07:00
zswap.c	mm/zswap.c: get swapper address_space by using macro	2013-09-11 15:57:08 -07:00