[PATCH] pacct: add pacct_struct to fix some pacct bugs.
authorKaiGai Kohei <kaigai@ak.jp.nec.com>
Sun, 25 Jun 2006 12:49:24 +0000 (05:49 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Sun, 25 Jun 2006 17:01:25 +0000 (10:01 -0700)
commit0e4648141af02331f21aabcd34940c70f09a2d04
tree3e4dea992a8e3f3194be04a0fd3e14c24a313ee7
parent6bc392741d661eb84be503d1fdf14b6746615e4c
[PATCH] pacct: add pacct_struct to fix some pacct bugs.

The pacct facility need an i/o operation when an accounting record is
generated.  There is a possibility to wake OOM killer up.  If OOM killer is
activated, it kills some processes to make them release process memory
regions.

But acct_process() is called in the killed processes context before calling
exit_mm(), so those processes cannot release own memory.  In the results, any
processes stop in this point and it finally cause a system stall.
include/linux/acct.h
include/linux/sched.h
kernel/acct.c
kernel/exit.c
kernel/fork.c