tree 0d93ade65db98b376e5bd84adae97f93ef7615c5
parent 1aa4848c00a370a2d7cf5d779da055fce19f037d
author Shubhraprakash Das <sadas@codeaurora.org> 1324589287 -0700
committer Shubhraprakash Das <sadas@codeaurora.org> 1327087607 -0700

mm: ashmem: Make sure vma is valid while flushing

Ensure that the vma that the ashmem region is tied to
is valid before flushing and hold the mm semaphore so
that the vma does not get destroyed from under while
it's being flushed.

CRs-Fixed: 326685
Change-Id: I86320ffe9e6570e6ffa7dda68ab26be7aed86afd
Signed-off-by: Shubhraprakash Das <sadas@codeaurora.org>