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posix-cpu-timers: Replace cpu_timer_pid_type with clock_pid_type 

Taking a clock and returning a pid_type is a more general and
a superset of taking a timer and returning a pid_type.

Perform this generalization so that future changes may use
this code on clocks as well as timers.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2020-04-27 09:38:29 -05:00
parent 9bf7c32409
commit fece98260f
1 changed files with 4 additions and 4 deletions
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8
kernel/time/posix-cpu-timers.c
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@ -113,14 +113,14 @@ static inline int validate_clock_permissions(const clockid_t clock)
return ret; return ret;
} }
static inline enum pid_type cpu_timer_pid_type(struct k_itimer *timer) static inline enum pid_type clock_pid_type(const clockid_t clock)
{ {
return CPUCLOCK_PERTHREAD(timer->it_clock) ? PIDTYPE_PID : PIDTYPE_TGID; return CPUCLOCK_PERTHREAD(clock) ? PIDTYPE_PID : PIDTYPE_TGID;
} }
static inline struct task_struct *cpu_timer_task_rcu(struct k_itimer *timer) static inline struct task_struct *cpu_timer_task_rcu(struct k_itimer *timer)
{ {
return pid_task(timer->it.cpu.pid, cpu_timer_pid_type(timer)); return pid_task(timer->it.cpu.pid, clock_pid_type(timer->it_clock));
} }
/* /*
@ -403,7 +403,7 @@ static int posix_cpu_timer_create(struct k_itimer *new_timer)
new_timer->kclock = &clock_posix_cpu; new_timer->kclock = &clock_posix_cpu;
timerqueue_init(&new_timer->it.cpu.node); timerqueue_init(&new_timer->it.cpu.node);
new_timer->it.cpu.pid = get_task_pid(p, cpu_timer_pid_type(new_timer)); new_timer->it.cpu.pid = get_task_pid(p, clock_pid_type(new_timer->it_clock));
rcu_read_unlock(); rcu_read_unlock();
return 0; return 0;
} }