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| author | Thomas Gleixner <tglx@linutronix.de> | 2019-08-21 22:09:06 +0300 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2019-08-28 12:50:35 +0300 |
| commit | 3a245c0f110e2bfcf7f2cd2248a29005c78999e3 (patch) | |
| tree | e567b3e5ebfc8d4abf1a5efc043290daf1d4021c /include/linux/posix-timers.h | |
| parent | 9eacb5c7e6607aba00a7322b21cad83fc8b101c8 (diff) | |
| download | linux-3a245c0f110e2bfcf7f2cd2248a29005c78999e3.tar.xz | |
posix-cpu-timers: Move expiry cache into struct posix_cputimers
The expiry cache belongs into the posix_cputimers container where the other
cpu timers information is.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lkml.kernel.org/r/20190821192921.014444012@linutronix.de
Diffstat (limited to 'include/linux/posix-timers.h')
| -rw-r--r-- | include/linux/posix-timers.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h index cdef89750b2c..a3731ba15bce 100644 --- a/include/linux/posix-timers.h +++ b/include/linux/posix-timers.h @@ -62,24 +62,43 @@ static inline int clockid_to_fd(const clockid_t clk) return ~(clk >> 3); } +/* + * Alternate field names for struct task_cputime when used on cache + * expirations. Will go away soon. + */ +#define virt_exp utime +#define prof_exp stime +#define sched_exp sum_exec_runtime + #ifdef CONFIG_POSIX_TIMERS /** * posix_cputimers - Container for posix CPU timer related data + * @cputime_expires: Earliest-expiration cache * @cpu_timers: List heads to queue posix CPU timers * * Used in task_struct and signal_struct */ struct posix_cputimers { + struct task_cputime cputime_expires; struct list_head cpu_timers[CPUCLOCK_MAX]; }; static inline void posix_cputimers_init(struct posix_cputimers *pct) { + memset(&pct->cputime_expires, 0, sizeof(pct->cputime_expires)); INIT_LIST_HEAD(&pct->cpu_timers[0]); INIT_LIST_HEAD(&pct->cpu_timers[1]); INIT_LIST_HEAD(&pct->cpu_timers[2]); } +void posix_cputimers_group_init(struct posix_cputimers *pct, u64 cpu_limit); + +static inline void posix_cputimers_rt_watchdog(struct posix_cputimers *pct, + u64 runtime) +{ + pct->cputime_expires.sched_exp = runtime; +} + /* Init task static initializer */ #define INIT_CPU_TIMERLISTS(c) { \ LIST_HEAD_INIT(c.cpu_timers[0]), \ @@ -94,6 +113,9 @@ static inline void posix_cputimers_init(struct posix_cputimers *pct) #else struct posix_cputimers { }; #define INIT_CPU_TIMERS(s) +static inline void posix_cputimers_init(struct posix_cputimers *pct) { } +static inline void posix_cputimers_group_init(struct posix_cputimers *pct, + u64 cpu_limit) { } #endif #define REQUEUE_PENDING 1 |