Commit-ID: 3cf294962df8fcde710eb5e762e0929e2ba49947 Gitweb: http://git.kernel.org/tip/3cf294962df8fcde710eb5e762e0929e2ba49947 Author: Krzysztof Opasiak <k.opas...@samsung.com> AuthorDate: Wed, 5 Jul 2017 19:25:48 +0200 Committer: Thomas Gleixner <t...@linutronix.de> CommitDate: Fri, 18 Aug 2017 12:44:42 +0200
posix-cpu-timers: Use dedicated helper to access rlimit values Use rlimit() and rlimit_max() helper instead of manually writing whole chain from task to rlimit value Signed-off-by: Krzysztof Opasiak <k.opas...@samsung.com> Signed-off-by: Thomas Gleixner <t...@linutronix.de> Link: http://lkml.kernel.org/r/20170705172548.7911-1-k.opas...@samsung.com --- kernel/time/posix-cpu-timers.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/kernel/time/posix-cpu-timers.c b/kernel/time/posix-cpu-timers.c index a3bd5db..8585ad6 100644 --- a/kernel/time/posix-cpu-timers.c +++ b/kernel/time/posix-cpu-timers.c @@ -799,7 +799,6 @@ static void check_thread_timers(struct task_struct *tsk, struct list_head *firing) { struct list_head *timers = tsk->cpu_timers; - struct signal_struct *const sig = tsk->signal; struct task_cputime *tsk_expires = &tsk->cputime_expires; u64 expires; unsigned long soft; @@ -823,10 +822,9 @@ static void check_thread_timers(struct task_struct *tsk, /* * Check for the special case thread timers. */ - soft = READ_ONCE(sig->rlim[RLIMIT_RTTIME].rlim_cur); + soft = task_rlimit(tsk, RLIMIT_RTTIME); if (soft != RLIM_INFINITY) { - unsigned long hard = - READ_ONCE(sig->rlim[RLIMIT_RTTIME].rlim_max); + unsigned long hard = task_rlimit_max(tsk, RLIMIT_RTTIME); if (hard != RLIM_INFINITY && tsk->rt.timeout > DIV_ROUND_UP(hard, USEC_PER_SEC/HZ)) { @@ -847,7 +845,8 @@ static void check_thread_timers(struct task_struct *tsk, */ if (soft < hard) { soft += USEC_PER_SEC; - sig->rlim[RLIMIT_RTTIME].rlim_cur = soft; + tsk->signal->rlim[RLIMIT_RTTIME].rlim_cur = + soft; } if (print_fatal_signals) { pr_info("RT Watchdog Timeout (soft): %s[%d]\n", @@ -938,11 +937,10 @@ static void check_process_timers(struct task_struct *tsk, SIGPROF); check_cpu_itimer(tsk, &sig->it[CPUCLOCK_VIRT], &virt_expires, utime, SIGVTALRM); - soft = READ_ONCE(sig->rlim[RLIMIT_CPU].rlim_cur); + soft = task_rlimit(tsk, RLIMIT_CPU); if (soft != RLIM_INFINITY) { unsigned long psecs = div_u64(ptime, NSEC_PER_SEC); - unsigned long hard = - READ_ONCE(sig->rlim[RLIMIT_CPU].rlim_max); + unsigned long hard = task_rlimit_max(tsk, RLIMIT_CPU); u64 x; if (psecs >= hard) { /*
