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| author | Shailabh Nagar <nagar@watson.ibm.com> | 2006-07-14 00:24:41 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-14 21:53:56 -0700 |
| commit | 6f44993fe1d7b2b097f6ac60cd5835c6f5ca0874 (patch) | |
| tree | 0f349f4e6c28cc5d11b7083273543a294c437216 /kernel/taskstats.c | |
| parent | c757249af152c59fd74b85e52e8c090acb33d9c0 (diff) | |
| download | linux-6f44993fe1d7b2b097f6ac60cd5835c6f5ca0874.tar.bz2 | |
[PATCH] per-task-delay-accounting: delay accounting usage of taskstats interface
Usage of taskstats interface by delay accounting.
Signed-off-by: Shailabh Nagar <nagar@us.ibm.com>
Signed-off-by: Balbir Singh <balbir@in.ibm.com>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Peter Chubb <peterc@gelato.unsw.edu.au>
Cc: Erich Focht <efocht@ess.nec.de>
Cc: Levent Serinol <lserinol@gmail.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/taskstats.c')
| -rw-r--r-- | kernel/taskstats.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/kernel/taskstats.c b/kernel/taskstats.c index 82ec9137d908..ea9506de3b85 100644 --- a/kernel/taskstats.c +++ b/kernel/taskstats.c @@ -18,13 +18,13 @@ #include <linux/kernel.h> #include <linux/taskstats_kern.h> +#include <linux/delayacct.h> #include <net/genetlink.h> #include <asm/atomic.h> static DEFINE_PER_CPU(__u32, taskstats_seqnum) = { 0 }; static int family_registered; kmem_cache_t *taskstats_cache; -static DEFINE_MUTEX(taskstats_exit_mutex); static struct genl_family family = { .id = GENL_ID_GENERATE, @@ -120,7 +120,10 @@ static int fill_pid(pid_t pid, struct task_struct *pidtsk, * goto err; */ -err: + rc = delayacct_add_tsk(stats, tsk); + stats->version = TASKSTATS_VERSION; + + /* Define err: label here if needed */ put_task_struct(tsk); return rc; @@ -152,8 +155,14 @@ static int fill_tgid(pid_t tgid, struct task_struct *tgidtsk, * break; */ + rc = delayacct_add_tsk(stats, tsk); + if (rc) + break; + } while_each_thread(first, tsk); read_unlock(&tasklist_lock); + stats->version = TASKSTATS_VERSION; + /* * Accounting subsytems can also add calls here if they don't @@ -233,8 +242,6 @@ void taskstats_exit_send(struct task_struct *tsk, struct taskstats *tidstats, if (!family_registered || !tidstats) return; - mutex_lock(&taskstats_exit_mutex); - is_thread_group = !thread_group_empty(tsk); rc = 0; @@ -292,7 +299,6 @@ nla_put_failure: err_skb: nlmsg_free(rep_skb); ret: - mutex_unlock(&taskstats_exit_mutex); return; } |