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authorFrederic Weisbecker <fweisbec@gmail.com>2013-10-11 16:11:43 +0200
committerFrederic Weisbecker <fweisbec@gmail.com>2013-12-09 16:53:50 +0100
commitaf82eb3c3068877a6b1989796a06b846b1e9e1c3 (patch)
tree993d789a777e97675e4c7f03e5a79f1e9b49c3e7 /kernel/posix-cpu-timers.c
parenta3222f88fa4f2ebec4632aef527dd2c9a41b997d (diff)
downloadlinux-af82eb3c3068877a6b1989796a06b846b1e9e1c3.tar.bz2
posix-timers: Remove useless clock sample on timers cleanup
a0b2062b0904ef07944c4a6e4d0f88ee44f1e9f2 ("posix_timers: fix racy timer delta caching on task exit") forgot to remove the arguments used for timer caching. Fix this leftover. Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Kosaki Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'kernel/posix-cpu-timers.c')
-rw-r--r--kernel/posix-cpu-timers.c30
1 files changed, 7 insertions, 23 deletions
diff --git a/kernel/posix-cpu-timers.c b/kernel/posix-cpu-timers.c
index ab9911b54faf..e6389f915bcb 100644
--- a/kernel/posix-cpu-timers.c
+++ b/kernel/posix-cpu-timers.c
@@ -399,8 +399,7 @@ static int posix_cpu_timer_del(struct k_itimer *timer)
return ret;
}
-static void cleanup_timers_list(struct list_head *head,
- unsigned long long curr)
+static void cleanup_timers_list(struct list_head *head)
{
struct cpu_timer_list *timer, *next;
@@ -414,16 +413,11 @@ static void cleanup_timers_list(struct list_head *head,
* time for later timer_gettime calls to return.
* This must be called with the siglock held.
*/
-static void cleanup_timers(struct list_head *head,
- cputime_t utime, cputime_t stime,
- unsigned long long sum_exec_runtime)
+static void cleanup_timers(struct list_head *head)
{
-
- cputime_t ptime = utime + stime;
-
- cleanup_timers_list(head, cputime_to_expires(ptime));
- cleanup_timers_list(++head, cputime_to_expires(utime));
- cleanup_timers_list(++head, sum_exec_runtime);
+ cleanup_timers_list(head);
+ cleanup_timers_list(++head);
+ cleanup_timers_list(++head);
}
/*
@@ -433,24 +427,14 @@ static void cleanup_timers(struct list_head *head,
*/
void posix_cpu_timers_exit(struct task_struct *tsk)
{
- cputime_t utime, stime;
-
add_device_randomness((const void*) &tsk->se.sum_exec_runtime,
sizeof(unsigned long long));
- task_cputime(tsk, &utime, &stime);
- cleanup_timers(tsk->cpu_timers,
- utime, stime, tsk->se.sum_exec_runtime);
+ cleanup_timers(tsk->cpu_timers);
}
void posix_cpu_timers_exit_group(struct task_struct *tsk)
{
- struct signal_struct *const sig = tsk->signal;
- cputime_t utime, stime;
-
- task_cputime(tsk, &utime, &stime);
- cleanup_timers(tsk->signal->cpu_timers,
- utime + sig->utime, stime + sig->stime,
- tsk->se.sum_exec_runtime + sig->sum_sched_runtime);
+ cleanup_timers(tsk->signal->cpu_timers);
}
static inline int expires_gt(cputime_t expires, cputime_t new_exp)