linux/arch/x86/mm
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
..
kmemcheck
amdtopology.c
dump_pagetables.c
extable.c
fault.c Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-11-14 16:55:56 +09:00
gup.c
highmem_32.c
hugetlbpage.c mm: migrate: check movability of hugepage in unmap_and_move_huge_page() 2013-09-11 15:57:49 -07:00
init_32.c
init_64.c
init.c arch/x86/mm/init.c: fix incorrect function name in alloc_low_pages() 2013-11-13 12:09:11 +09:00
iomap_32.c
ioremap.c mm: Remove unused variable idx0 in __early_ioremap() 2013-08-13 11:46:36 +02:00
kmmio.c
Makefile x86, trace: Add page fault tracepoints 2013-11-08 14:15:49 -08:00
memtest.c
mm_internal.h x86, mm: Move after_bootmem to mm_internel.h 2012-11-17 11:59:45 -08:00
mmap.c x86 get_unmapped_area: Access mmap_legacy_base through mm_struct member 2013-08-22 10:19:35 -07:00
mmio-mod.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
numa_32.c
numa_64.c
numa_emulation.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
numa_internal.h
numa.c mem-hotplug: introduce movable_node boot option 2013-11-13 12:09:09 +09:00
pageattr-test.c
pageattr.c
pat_internal.h
pat_rbtree.c
pat.c
pf_in.c
pf_in.h
pgtable_32.c
pgtable.c x86, mm: do not leak page->ptl for pmd page tables 2013-11-21 16:42:28 -08:00
physaddr.c
physaddr.h
setup_nx.c x86: delete __cpuinit usage from all x86 files 2013-07-14 19:36:56 -04:00
srat.c ACPI / x86: Print Hot-Pluggable Field in SRAT. 2013-08-14 23:24:01 +02:00
testmmiotrace.c
tlb.c mm: vmstats: track TLB flush stats on UP too 2013-09-11 15:57:09 -07:00