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156 Commits

Author SHA1 Message Date
Colin Cross c405900f87 lmkd: mlock all memory 
Use mlockall(MCL_FUTURE) to lock all lmkd pages in memory.  This
avoids lmkd thrashing when the system is low on memory.

As a side effect, it will also keep the .text sections of liblog, libm,
libc, and libprocessgroup in memory at all times.

Bug: 16236289
Change-Id: Idd70557efa4b1e14bc86f14220672a30f6c956e3
 2014-07-14 16:39:56 -07:00
Colin Cross 4e9100c14d lmkd: use libprocessgroup to kill forked processes 
After sending sigkill to the main process, also call into
libprocessgroup to kill any processes that were forked.

Bug: 15313911
Change-Id: I05577c6f5b70800ce0a01f480c8870c2c601afda
 2014-07-09 17:24:39 -07:00
Colin Cross 748d2185d3 lmkd: pass uid from ActivityManager to lmkd 
lmkd will use the uid to find processgroups and kill forked processes.

Bug: 15313911
Change-Id: I3f7bb003ccf15650cae6ebc2c042ddeb4cc796fc
 2014-07-09 11:30:52 -07:00
Mark Salyzyn eb062744a6 lmkd: turn on -Werror 
- Deal with some -Wunused issues

Change-Id: Id037c44a0ca2d00ae10a939fb001bc24a3e9410c
 2014-05-07 12:27:29 -07:00
Todd Poynor a08c172bef low memory killer: switch to kernel oom_score_adj interface 
Use oom_score_adj for setting OOM score adjustment values instead
of the older, deprecated oom_adj interface.

Change-Id: I5ba7801d4b8971be092b31ae0fd8af8c3001d613
 2013-09-23 18:32:02 +00:00
Todd Poynor c58c51443b Add lmkd low memory killer daemon 
Move kernel low memory killer logic to new daemon lmkd.  ActivityManager
communicates with this daemon over a named socket.

Change-Id: Ie957da7e9b1f7150e23c689fdadf23ff260b47be
 2013-08-30 15:32:09 -07:00