diff options
| author | Jerome Marchand <jmarchan@redhat.com> | 2015-11-20 15:57:02 -0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2016-04-27 09:48:42 +0800 |
| commit | 7b44c3df0b89d05c80e15eb0522a21d033d1314f (patch) | |
| tree | 2a73006fc35b75d5278b54b662352f8a770c50b0 /drivers/iommu/Kconfig | |
| parent | dbdb6d27cf364cee9db9680e7f63a8ce54a1076d (diff) | |
mm: vmalloc: don't remove inexistent guard hole in remove_vm_area()
Commit 71394fe50146 ("mm: vmalloc: add flag preventing guard hole
allocation") missed a spot. Currently remove_vm_area() decreases vm->size
to "remove" the guard hole page, even when it isn't present. All but one
users just free the vm_struct rigth away and never access vm->size anyway.
Don't touch the size in remove_vm_area() and have __vunmap() use the
proper get_vm_area_size() helper.
Signed-off-by: Jerome Marchand <jmarchan@redhat.com>
Acked-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 7511c3ede752e6dd67df20779b4e11effe102637)
Signed-off-by: Alex Shi <alex.shi@linaro.org>
Diffstat (limited to 'drivers/iommu/Kconfig')
0 files changed, 0 insertions, 0 deletions