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| author | KaiGai Kohei <kaigai@ak.jp.nec.com> | 2006-06-25 14:49:26 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-25 19:01:25 +0200 |
| commit | 77787bfb44da6e6166af088226707aeccee27968 (patch) | |
| tree | ada770c2f4f2d913c8f96f2eec3125d4cfb22011 /fs/ext2/super.c | |
| parent | [PATCH] pacct: avoidance to refer the last thread as a representation of the ... (diff) | |
| download | linux-77787bfb44da6e6166af088226707aeccee27968.tar.xz linux-77787bfb44da6e6166af088226707aeccee27968.zip | |
[PATCH] pacct: none-delayed process accounting accumulation
In current 2.6.17 implementation, signal_struct refered from task_struct is
used for per-process data structure. The pacct facility also uses it as a
per-process data structure to store stime, utime, minflt, majflt. But those
members are saved in __exit_signal(). It's too late.
For example, if some threads exits at same time, pacct facility has a
possibility to drop accountings for a part of those threads. (see, the
following 'The results of original 2.6.17 kernel') I think accounting
information should be completely collected into the per-process data structure
before writing out an accounting record.
This patch fixes this matter. Accumulation of stime, utime, minflt and majflt
are done before generating accounting record.
[mingo@elte.hu: fix acct_collect() siglock bug found by lockdep]
Signed-off-by: KaiGai Kohei <kaigai@ak.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/ext2/super.c')
0 files changed, 0 insertions, 0 deletions