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authorOleg Nesterov <oleg@tv-sign.ru>2006-12-06 20:36:52 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-07 08:39:34 -0800
commit34ec12349c8a9505adc59d72f92b4595bc2483ff (patch)
tree2307c825f1a0d8bf9976d5fadcc8516ad5829eac /include/linux/taskstats_kern.h
parent115085ea0794c0f339be8f9d25505c7f9861d824 (diff)
downloadop-kernel-dev-34ec12349c8a9505adc59d72f92b4595bc2483ff.zip
op-kernel-dev-34ec12349c8a9505adc59d72f92b4595bc2483ff.tar.gz
[PATCH] taskstats: cleanup ->signal->stats allocation
Allocate ->signal->stats on demand in taskstats_exit(), this allows us to remove taskstats_tgid_alloc() (the last non-trivial inline) from taskstat's public interface. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Shailabh Nagar <nagar@watson.ibm.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 'include/linux/taskstats_kern.h')
-rw-r--r--include/linux/taskstats_kern.h24
1 files changed, 0 insertions, 24 deletions
diff --git a/include/linux/taskstats_kern.h b/include/linux/taskstats_kern.h
index f1261a5..7e9680f 100644
--- a/include/linux/taskstats_kern.h
+++ b/include/linux/taskstats_kern.h
@@ -20,28 +20,6 @@ static inline void taskstats_tgid_init(struct signal_struct *sig)
sig->stats = NULL;
}
-static inline void taskstats_tgid_alloc(struct task_struct *tsk)
-{
- struct signal_struct *sig = tsk->signal;
- struct taskstats *stats;
-
- if (sig->stats != NULL)
- return;
-
- /* No problem if kmem_cache_zalloc() fails */
- stats = kmem_cache_zalloc(taskstats_cache, GFP_KERNEL);
-
- spin_lock_irq(&tsk->sighand->siglock);
- if (!sig->stats) {
- sig->stats = stats;
- stats = NULL;
- }
- spin_unlock_irq(&tsk->sighand->siglock);
-
- if (stats)
- kmem_cache_free(taskstats_cache, stats);
-}
-
static inline void taskstats_tgid_free(struct signal_struct *sig)
{
if (sig->stats)
@@ -55,8 +33,6 @@ static inline void taskstats_exit(struct task_struct *tsk, int group_dead)
{}
static inline void taskstats_tgid_init(struct signal_struct *sig)
{}
-static inline void taskstats_tgid_alloc(struct task_struct *tsk)
-{}
static inline void taskstats_tgid_free(struct signal_struct *sig)
{}
static inline void taskstats_init_early(void)
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