Kirill A. Shutemov c283610e44 x86, mm: do not leak page->ptl for pmd page tables ...

There are two code paths how page with pmd page table can be freed:
pmd_free() and pmd_free_tlb().

I've missed the second one and didn't add page table destructor call
there.  It leads to leak of page->ptl for pmd page tables, if
dynamically allocated page->ptl is in use.

The patch adds the missed destructor and modifies documentation
accordingly.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Reported-by: Andrey Vagin <avagin@openvz.org>
Tested-by: Andrey Vagin <avagin@openvz.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

2013-11-21 16:42:28 -08:00

..

.gitignore

Documentation/vm/.gitignore: add page-types

2009-09-24 07:20:57 -07:00

00-INDEX

mm: update 00-INDEX

2013-10-14 15:52:20 +02:00

active_mm.txt

Fix common misspellings

2011-03-31 11:26:23 -03:00

balance

page allocator: use allocation flags as an index to the zone watermark

2009-06-16 19:47:35 -07:00

cleancache.txt

Cleanups: rename of flush to invalidate, moving reporting of statistics

2012-03-22 19:52:47 -07:00

frontswap.txt

doc: fix quite a few typos within Documentation

2012-11-19 14:28:24 +01:00

highmem.txt

mm: highmem documentation

2010-10-26 16:52:08 -07:00

hugetlbpage.txt

hugepage: mention libhugetlbfs in doc

2013-09-11 15:57:39 -07:00

hwpoison.txt

Documentation: update cgroupfs mount point

2011-06-15 21:52:50 -07:00

ksm.txt

ksm: add some comments

2013-02-23 17:50:23 -08:00

locking

mm: Convert i_mmap_lock to a mutex

2011-05-25 08:39:18 -07:00

numa

doc: fix broken references

2011-09-27 18:08:04 +02:00

numa_memory_policy.txt

Doc: Fix typo s/packages/packaged

2010-09-21 17:03:27 +02:00

overcommit-accounting

mm: limit growth of 3% hardcoded other user reserve

2013-04-29 15:54:36 -07:00

page_migration

trivial: fix where cgroup documentation is not correctly referred to

2009-03-30 15:22:02 +02:00

pagemap.txt

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2013-07-04 11:40:58 -07:00

slub.txt

Documentations: Fix slabinfo.c directory in vm/slub.txt

2012-05-10 11:45:23 +03:00

soft-dirty.txt

mm: track vma changes with VM_SOFTDIRTY bit

2013-09-11 15:57:56 -07:00

split_page_table_lock

x86, mm: do not leak page->ptl for pmd page tables

2013-11-21 16:42:28 -08:00

transhuge.txt

mm/thp: fix doc for transparent huge zero page

2013-07-09 10:33:23 -07:00

unevictable-lru.txt

mm: remove vma arg from page_evictable

2012-10-09 16:22:55 +09:00

zswap.txt

Documentation/vm/zswap.txt: fix typos

2013-11-13 12:09:05 +09:00