Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/include/linux/posix-timers.h b/include/linux/posix-timers.h
new file mode 100644
index 0000000..f942e2b
--- /dev/null
+++ b/include/linux/posix-timers.h
@@ -0,0 +1,139 @@
+#ifndef _linux_POSIX_TIMERS_H
+#define _linux_POSIX_TIMERS_H
+
+#include <linux/spinlock.h>
+#include <linux/list.h>
+#include <linux/sched.h>
+
+union cpu_time_count {
+ cputime_t cpu;
+ unsigned long long sched;
+};
+
+struct cpu_timer_list {
+ struct list_head entry;
+ union cpu_time_count expires, incr;
+ struct task_struct *task;
+ int firing;
+};
+
+#define CPUCLOCK_PID(clock) ((pid_t) ~((clock) >> 3))
+#define CPUCLOCK_PERTHREAD(clock) \
+ (((clock) & (clockid_t) CPUCLOCK_PERTHREAD_MASK) != 0)
+#define CPUCLOCK_PID_MASK 7
+#define CPUCLOCK_PERTHREAD_MASK 4
+#define CPUCLOCK_WHICH(clock) ((clock) & (clockid_t) CPUCLOCK_CLOCK_MASK)
+#define CPUCLOCK_CLOCK_MASK 3
+#define CPUCLOCK_PROF 0
+#define CPUCLOCK_VIRT 1
+#define CPUCLOCK_SCHED 2
+#define CPUCLOCK_MAX 3
+
+#define MAKE_PROCESS_CPUCLOCK(pid, clock) \
+ ((~(clockid_t) (pid) << 3) | (clockid_t) (clock))
+#define MAKE_THREAD_CPUCLOCK(tid, clock) \
+ MAKE_PROCESS_CPUCLOCK((tid), (clock) | CPUCLOCK_PERTHREAD_MASK)
+
+/* POSIX.1b interval timer structure. */
+struct k_itimer {
+ struct list_head list; /* free/ allocate list */
+ spinlock_t it_lock;
+ clockid_t it_clock; /* which timer type */
+ timer_t it_id; /* timer id */
+ int it_overrun; /* overrun on pending signal */
+ int it_overrun_last; /* overrun on last delivered signal */
+ int it_requeue_pending; /* waiting to requeue this timer */
+#define REQUEUE_PENDING 1
+ int it_sigev_notify; /* notify word of sigevent struct */
+ int it_sigev_signo; /* signo word of sigevent struct */
+ sigval_t it_sigev_value; /* value word of sigevent struct */
+ struct task_struct *it_process; /* process to send signal to */
+ struct sigqueue *sigq; /* signal queue entry. */
+ union {
+ struct {
+ struct timer_list timer;
+ struct list_head abs_timer_entry; /* clock abs_timer_list */
+ struct timespec wall_to_prev; /* wall_to_monotonic used when set */
+ unsigned long incr; /* interval in jiffies */
+ } real;
+ struct cpu_timer_list cpu;
+ struct {
+ unsigned int clock;
+ unsigned int node;
+ unsigned long incr;
+ unsigned long expires;
+ } mmtimer;
+ } it;
+};
+
+struct k_clock_abs {
+ struct list_head list;
+ spinlock_t lock;
+};
+struct k_clock {
+ int res; /* in nano seconds */
+ int (*clock_getres) (clockid_t which_clock, struct timespec *tp);
+ struct k_clock_abs *abs_struct;
+ int (*clock_set) (clockid_t which_clock, struct timespec * tp);
+ int (*clock_get) (clockid_t which_clock, struct timespec * tp);
+ int (*timer_create) (struct k_itimer *timer);
+ int (*nsleep) (clockid_t which_clock, int flags, struct timespec *);
+ int (*timer_set) (struct k_itimer * timr, int flags,
+ struct itimerspec * new_setting,
+ struct itimerspec * old_setting);
+ int (*timer_del) (struct k_itimer * timr);
+#define TIMER_RETRY 1
+ void (*timer_get) (struct k_itimer * timr,
+ struct itimerspec * cur_setting);
+};
+
+void register_posix_clock(clockid_t clock_id, struct k_clock *new_clock);
+
+/* Error handlers for timer_create, nanosleep and settime */
+int do_posix_clock_notimer_create(struct k_itimer *timer);
+int do_posix_clock_nonanosleep(clockid_t, int flags, struct timespec *);
+int do_posix_clock_nosettime(clockid_t, struct timespec *tp);
+
+/* function to call to trigger timer event */
+int posix_timer_event(struct k_itimer *timr, int si_private);
+
+struct now_struct {
+ unsigned long jiffies;
+};
+
+#define posix_get_now(now) (now)->jiffies = jiffies;
+#define posix_time_before(timer, now) \
+ time_before((timer)->expires, (now)->jiffies)
+
+#define posix_bump_timer(timr, now) \
+ do { \
+ long delta, orun; \
+ delta = now.jiffies - (timr)->it.real.timer.expires; \
+ if (delta >= 0) { \
+ orun = 1 + (delta / (timr)->it.real.incr); \
+ (timr)->it.real.timer.expires += \
+ orun * (timr)->it.real.incr; \
+ (timr)->it_overrun += orun; \
+ } \
+ }while (0)
+
+int posix_cpu_clock_getres(clockid_t which_clock, struct timespec *);
+int posix_cpu_clock_get(clockid_t which_clock, struct timespec *);
+int posix_cpu_clock_set(clockid_t which_clock, const struct timespec *tp);
+int posix_cpu_timer_create(struct k_itimer *);
+int posix_cpu_nsleep(clockid_t, int, struct timespec *);
+int posix_cpu_timer_set(struct k_itimer *, int,
+ struct itimerspec *, struct itimerspec *);
+int posix_cpu_timer_del(struct k_itimer *);
+void posix_cpu_timer_get(struct k_itimer *, struct itimerspec *);
+
+void posix_cpu_timer_schedule(struct k_itimer *);
+
+void run_posix_cpu_timers(struct task_struct *);
+void posix_cpu_timers_exit(struct task_struct *);
+void posix_cpu_timers_exit_group(struct task_struct *);
+
+void set_process_cpu_timer(struct task_struct *, unsigned int,
+ cputime_t *, cputime_t *);
+
+#endif