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| author | Wang, Yalin | 2015-02-12 00:24:48 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2015-02-12 02:06:00 +0100 |
| commit | 1d148e218a0d0566b1c06f2f45f1436d53b049b2 (patch) | |
| tree | 39e416568334e656764c3a5eab0b5939f6121779 /mm/huge_memory.c | |
| parent | mm: add fields for compound destructor and order into struct page (diff) | |
| download | kernel-qcow2-linux-1d148e218a0d0566b1c06f2f45f1436d53b049b2.tar.gz kernel-qcow2-linux-1d148e218a0d0566b1c06f2f45f1436d53b049b2.tar.xz kernel-qcow2-linux-1d148e218a0d0566b1c06f2f45f1436d53b049b2.zip | |
mm: add VM_BUG_ON_PAGE() to page_mapcount()
Add VM_BUG_ON_PAGE() for slab pages. _mapcount is an union with slab
struct in struct page, so we must avoid accessing _mapcount if this page
is a slab page. Also remove the unneeded bracket.
Signed-off-by: Yalin Wang <yalin.wang@sonymobile.com>
Acked-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/huge_memory.c')
0 files changed, 0 insertions, 0 deletions