tree c48e6ffc7fc8d0d1793f82712498e9957f0e8651
parent c1c69b874c2ed8373bf631f34b9d3540103b0ddf
author Liam Mark <lmark@codeaurora.org> 1394492799 -0700
committer Vinayak Menon <vinmenon@codeaurora.org> 1500540319 +0530

lowmemorykiller: Account for highmem during kswapd reclaim

Currenlty most memory reclaim is done through kswapd.
Since kswapd uses a gfp mask of GFP_KERNEL, and because
the lowmemorykiller is zone aware, the lowmemorykiller will
ignore highmem most of the time.
This results in the lowmemorykiller being overly aggressive.

The fix to this issue is to allow the lowmemorykiller to
count highmem when being called by the kswapd if the lowmem
watermarks are satisfied.

Change-Id: I938644584f374763d10d429d835e74daa4854a38
Signed-off-by: Liam Mark <lmark@codeaurora.org>
Signed-off-by: Vinayak Menon <vinmenon@codeaurora.org>