tree 3e4dea992a8e3f3194be04a0fd3e14c24a313ee7
parent 6bc392741d661eb84be503d1fdf14b6746615e4c
author KaiGai Kohei <kaigai@ak.jp.nec.com> 1151239764 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1151254885 -0700

[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.