7 Commits

Author	SHA1	Message	Date
Colin Cross	d5b510eb13	lmkd: make lmkd SCHED_FIFO ... If kswapd runs more than lmkd it may throw away all page cache pages before lmkd gets a chance to kill a process. Make lmkd SCHED_FIFO so it can react quickly to kernel low memory notifications. Bug: 16236289 Change-Id: I46767b4ec81ef8638d0c9e47d168a68b62e3cac5	2014-07-14 17:41:17 -07:00
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