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authorKaiGai Kohei <kaigai@ak.jp.nec.com>2006-06-25 05:49:24 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-25 10:01:25 -0700
commit0e4648141af02331f21aabcd34940c70f09a2d04 (patch)
tree3e4dea992a8e3f3194be04a0fd3e14c24a313ee7 /kernel/exit.c
parent6bc392741d661eb84be503d1fdf14b6746615e4c (diff)
downloadop-kernel-dev-0e4648141af02331f21aabcd34940c70f09a2d04.zip
op-kernel-dev-0e4648141af02331f21aabcd34940c70f09a2d04.tar.gz
[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.
Diffstat (limited to 'kernel/exit.c')
-rw-r--r--kernel/exit.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/kernel/exit.c b/kernel/exit.c
index 601263c..819d82c 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -894,7 +894,7 @@ fastcall NORET_TYPE void do_exit(long code)
if (group_dead) {
hrtimer_cancel(&tsk->signal->real_timer);
exit_itimers(tsk->signal);
- acct_process(code);
+ acct_collect();
}
if (unlikely(tsk->robust_list))
exit_robust_list(tsk);
@@ -906,6 +906,8 @@ fastcall NORET_TYPE void do_exit(long code)
audit_free(tsk);
exit_mm(tsk);
+ if (group_dead)
+ acct_process(code);
exit_sem(tsk);
__exit_files(tsk);
__exit_fs(tsk);
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