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author | Richard Cochran <richardcochran@gmail.com> | 2011-02-01 13:52:15 (GMT) |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2011-02-02 14:28:18 (GMT) |
commit | 0061748dd2400d0bcd4d49d258db5d7b5d106ca0 (patch) | |
tree | 493582797fa35bc282b44f47597e55c71f7735df /kernel | |
parent | bc2c8ea483d73e95fc88f1fc9e7755180f89b892 (diff) | |
download | linux-0061748dd2400d0bcd4d49d258db5d7b5d106ca0.tar.xz |
posix-timer: Update comment
Pick the cleanup to the comment in posix-timers.c from Richards all in
one conversion patch.
Originally-from: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <johnstul@us.ibm.com>
LKML-Reference: <20110201134419.487708516@linutronix.de>
Diffstat (limited to 'kernel')
-rw-r--r-- | kernel/posix-timers.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/kernel/posix-timers.c b/kernel/posix-timers.c index ad154df..a3fdfd4 100644 --- a/kernel/posix-timers.c +++ b/kernel/posix-timers.c @@ -102,11 +102,7 @@ static DEFINE_SPINLOCK(idr_lock); /* * CLOCKs: The POSIX standard calls for a couple of clocks and allows us * to implement others. This structure defines the various - * clocks and allows the possibility of adding others. We - * provide an interface to add clocks to the table and expect - * the "arch" code to add at least one clock that is high - * resolution. Here we define the standard CLOCK_REALTIME as a - * 1/HZ resolution clock. + * clocks. * * RESOLUTION: Clock resolution is used to round up timer and interval * times, NOT to report clock times, which are reported with as @@ -116,20 +112,13 @@ static DEFINE_SPINLOCK(idr_lock); * necessary code is written. The standard says we should say * something about this issue in the documentation... * - * FUNCTIONS: The CLOCKs structure defines possible functions to handle - * various clock functions. For clocks that use the standard - * system timer code these entries should be NULL. This will - * allow dispatch without the overhead of indirect function - * calls. CLOCKS that depend on other sources (e.g. WWV or GPS) - * must supply functions here, even if the function just returns - * ENOSYS. The standard POSIX timer management code assumes the - * following: 1.) The k_itimer struct (sched.h) is used for the - * timer. 2.) The list, it_lock, it_clock, it_id and it_pid - * fields are not modified by timer code. + * FUNCTIONS: The CLOCKs structure defines possible functions to + * handle various clock functions. * - * At this time all functions EXCEPT clock_nanosleep can be - * redirected by the CLOCKS structure. Clock_nanosleep is in - * there, but the code ignores it. + * The standard POSIX timer management code assumes the + * following: 1.) The k_itimer struct (sched.h) is used for + * the timer. 2.) The list, it_lock, it_clock, it_id and + * it_pid fields are not modified by timer code. * * Permissions: It is assumed that the clock_settime() function defined * for each clock will take care of permission checks. Some |