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| author | Thomas Gleixner <tglx@linutronix.de> | 2019-08-21 21:09:04 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-08-28 11:50:33 +0200 |
| commit | 2b69942f9021bf75bd1b001f53bd2578361fadf3 (patch) | |
| tree | 1d51a30bd34edc3c0a723a306199b1018e404db3 /kernel/fork.c | |
| parent | posix-cpu-timers: Move prof/virt_ticks into caller (diff) | |
| download | linux-2b69942f9021bf75bd1b001f53bd2578361fadf3.tar.xz linux-2b69942f9021bf75bd1b001f53bd2578361fadf3.zip | |
posix-cpu-timers: Create a container struct
Per task/process data of posix CPU timers is all over the place which
makes the code hard to follow and requires ifdeffery.
Create a container to hold all this information in one place, so data is
consolidated and the ifdeffery can be confined to the posix timer header
file and removed from places like fork.
As a first step, move the cpu_timers list head array into the new struct
and clean up the initializers and simplify fork. The remaining #ifdef in
fork will be removed later.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/20190821192920.819418976@linutronix.de
Diffstat (limited to 'kernel/fork.c')
| -rw-r--r-- | kernel/fork.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/kernel/fork.c b/kernel/fork.c index d8ae0f1b4148..b6a135e4275b 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1523,6 +1523,7 @@ void __cleanup_sighand(struct sighand_struct *sighand) */ static void posix_cpu_timers_init_group(struct signal_struct *sig) { + struct posix_cputimers *pct = &sig->posix_cputimers; unsigned long cpu_limit; cpu_limit = READ_ONCE(sig->rlim[RLIMIT_CPU].rlim_cur); @@ -1531,10 +1532,7 @@ static void posix_cpu_timers_init_group(struct signal_struct *sig) sig->cputimer.running = true; } - /* The timer lists. */ - INIT_LIST_HEAD(&sig->cpu_timers[0]); - INIT_LIST_HEAD(&sig->cpu_timers[1]); - INIT_LIST_HEAD(&sig->cpu_timers[2]); + posix_cputimers_init(pct); } #else static inline void posix_cpu_timers_init_group(struct signal_struct *sig) { } @@ -1649,9 +1647,8 @@ static void posix_cpu_timers_init(struct task_struct *tsk) tsk->cputime_expires.prof_exp = 0; tsk->cputime_expires.virt_exp = 0; tsk->cputime_expires.sched_exp = 0; - INIT_LIST_HEAD(&tsk->cpu_timers[0]); - INIT_LIST_HEAD(&tsk->cpu_timers[1]); - INIT_LIST_HEAD(&tsk->cpu_timers[2]); + + posix_cputimers_init(&tsk->posix_cputimers); } #else static inline void posix_cpu_timers_init(struct task_struct *tsk) { } |