diff options
| author | KaiGai Kohei <kaigai@ak.jp.nec.com> | 2006-06-25 05:49:24 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 10:01:25 -0700 |
| commit | 0e4648141af02331f21aabcd34940c70f09a2d04 (patch) | |
| tree | 3e4dea992a8e3f3194be04a0fd3e14c24a313ee7 /include/linux/sched.h | |
| parent | 6bc392741d661eb84be503d1fdf14b6746615e4c (diff) | |
[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 'include/linux/sched.h')
| -rw-r--r-- | include/linux/sched.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/sched.h b/include/linux/sched.h index 38b4791e6a5d..abada7c1d5e4 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -358,6 +358,10 @@ struct sighand_struct { spinlock_t siglock; }; +struct pacct_struct { + unsigned long ac_mem; +}; + /* * NOTE! "signal_struct" does not have it's own * locking, because a shared signal_struct always @@ -449,6 +453,9 @@ struct signal_struct { struct key *session_keyring; /* keyring inherited over fork */ struct key *process_keyring; /* keyring private to this process */ #endif +#ifdef CONFIG_BSD_PROCESS_ACCT + struct pacct_struct pacct; /* per-process accounting information */ +#endif }; /* Context switch must be unlocked if interrupts are to be enabled */ |