tree d8250577b8b59864c6e447b54702c141026fed56
parent d98ac1a38bcdc8b96f25ab1626a2573668be18ee
author Minchan Kim <minchan@google.com> 1525051542 +0900
committer Thierry Strudel <tstrudel@google.com> 1527034348 +0000

qcacld-3.0: Not to be hard to make high order page

Tim Murray reported kcompactd consumes many CPU cycle without
being suesseful to make high-order page. When I investigated
the problem, one of culprit was WIFI driver which allocates
order-3 page allocation a lot.

It shows 46% high-order allocation comes from WIFI driver.
Of course, it should be fixed in MM layer but it is never
easy stuff to fix in near future.
Regardless of MM changes, drivers should do best effort to reduce
high-order allocation, too.

This patch fixes the problem via not waking kcompactd.

Bug: 77573266
Change-Id: I2bc3bf3ec96d32dd1a93c24edf2f590f331c0ed5
Reported-by: Tim Murray <timmurray@google.com>
Signed-off-by: Minchan Kim <minchan@google.com>