You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

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>		12 years ago
..
.gitignore	Documentation/vm/.gitignore: add page-types	16 years ago
00-INDEX	slub: doc: update the slabinfo.c file path	14 years ago
active_mm.txt	Fix common misspellings	14 years ago
balance	page allocator: use allocation flags as an index to the zone watermark	16 years ago
cleancache.txt	Cleanups: rename of flush to invalidate, moving reporting of statistics	13 years ago
frontswap.txt	doc: fix quite a few typos within Documentation	12 years ago
highmem.txt	mm: highmem documentation	15 years ago
hugetlbpage.txt	hugepage: mention libhugetlbfs in doc	12 years ago
hwpoison.txt	Documentation: update cgroupfs mount point	14 years ago
ksm.txt	ksm: add some comments	12 years ago
locking	mm: Convert i_mmap_lock to a mutex	14 years ago
numa	doc: fix broken references	14 years ago
numa_memory_policy.txt	Doc: Fix typo s/packages/packaged	15 years ago
overcommit-accounting	mm: limit growth of 3% hardcoded other user reserve	12 years ago
page_migration	trivial: fix where cgroup documentation is not correctly referred to	16 years ago
pagemap.txt	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	12 years ago
slub.txt	Documentations: Fix slabinfo.c directory in vm/slub.txt	13 years ago
soft-dirty.txt	mm: track vma changes with VM_SOFTDIRTY bit	12 years ago
transhuge.txt	mm/thp: fix doc for transparent huge zero page	12 years ago
unevictable-lru.txt	mm: remove vma arg from page_evictable	13 years ago
zswap.txt	zswap: add documentation	12 years ago