]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[PATCH] taskstats: fix sub-threads accounting
authorOleg Nesterov <oleg@tv-sign.ru>
Tue, 31 Oct 2006 06:07:15 +0000 (22:07 -0800)
committerLinus Torvalds <torvalds@g5.osdl.org>
Tue, 31 Oct 2006 16:07:00 +0000 (08:07 -0800)
commit4a279ff1ea1cf325775ada983035123fcdc8e986
treed22332ae377a02c5c70021ed53395d65fb95b067
parent525fdb6cc929b515ad7e0be40fd023cff8660ed8
[PATCH] taskstats: fix sub-threads accounting

If there are no listeners, taskstats_exit_send() just returns because
taskstats_exit_alloc() didn't allocate *tidstats.  This is wrong, each
sub-thread should do fill_tgid_exit() on exit, otherwise its ->delays is
not recorded in ->signal->stats and lost.

Q: We don't send TASKSTATS_TYPE_AGGR_TGID when single-threaded process
exits.  Is it good?  How can the listener figure out that it was actually a
process exit, not sub-thread?

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Balbir Singh <balbir@in.ibm.com>
Acked-by: Shailabh Nagar <nagar@watson.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/taskstats.c