Ported LMK patch from  halaszk / siyahkernel-sgs3 TNX!

https://github.com/halaszk/siyahkernel-sgs3/commits/
a1f2471c7c04ee58a338b3b621f32822d8c49ba1
b814b2b6117b1be1a987342148379be7b4a06906
android/lowmemorykiller: Ignore tasks with freed mm +FIX!

A killed task can stay in the task list long after its
memory has been returned to the system, therefore
ignore any tasks whose mm struct has been freed.

Change-Id: I76394b203b4ab2312437c839976f0ecb7b6dde4e
CRs-fixed: 450383
Signed-off-by: Liam Mark <lmark@codeaurora.org>

commit 2629238ea4718ca9defd6b7772fbee8e9cd31c06 1 parent a5f7bf8
halaszk authored in 5 hours

https://github.com/halaszk/siyahkernel-sgs3/commit/2629238ea4718ca9defd6b7772fbee8e9cd31c06