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| author | Thomas Gleixner <tglx@linutronix.de> | 2006-01-10 07:52:29 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-10 19:01:36 +0300 |
| commit | 5f82b2b77e66d452c3037cc47f436d2d76fd5f06 (patch) | |
| tree | c3c5f11d7160fa4651ca1acf5d927a7546c3d725 | |
| parent | 2a698971941bf5e6ebe96275f7d5318b2cf91ccf (diff) | |
| download | linux-5f82b2b77e66d452c3037cc47f436d2d76fd5f06.tar.xz | |
[PATCH] hrtimer: create and use timespec_valid macro
add timespec_valid(ts) [returns false if the timespec is denorm]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
| -rw-r--r-- | include/linux/time.h | 6 | ||||
| -rw-r--r-- | kernel/posix-timers.c | 5 |
2 files changed, 8 insertions, 3 deletions
diff --git a/include/linux/time.h b/include/linux/time.h index 4d49cabb9b47..64e797464589 100644 --- a/include/linux/time.h +++ b/include/linux/time.h @@ -44,6 +44,12 @@ extern unsigned long mktime(const unsigned int year, const unsigned int mon, extern void set_normalized_timespec(struct timespec *ts, time_t sec, long nsec); +/* + * Returns true if the timespec is norm, false if denorm: + */ +#define timespec_valid(ts) \ + (((ts)->tv_sec >= 0) && (((unsigned) (ts)->tv_nsec) < NSEC_PER_SEC)) + extern struct timespec xtime; extern struct timespec wall_to_monotonic; extern seqlock_t xtime_lock; diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index 69d5a4b5395b..6b851a1bf4b0 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -712,8 +712,7 @@ out: */ static int good_timespec(const struct timespec *ts) { - if ((!ts) || (ts->tv_sec < 0) || - ((unsigned) ts->tv_nsec >= NSEC_PER_SEC)) + if ((!ts) || !timespec_valid(ts)) return 0; return 1; } @@ -1406,7 +1405,7 @@ sys_clock_nanosleep(const clockid_t which_clock, int flags, if (copy_from_user(&t, rqtp, sizeof (struct timespec))) return -EFAULT; - if ((unsigned) t.tv_nsec >= NSEC_PER_SEC || t.tv_sec < 0) + if (!timespec_valid(&t)) return -EINVAL; /* |