From: Thomas Gleixner <tglx@linutronix.de>
To: LKML <linux-kernel@vger.kernel.org>
Cc: John Stultz <john.stultz@linaro.org>,
Richard Cochran <richard.cochran@omicron.at>,
Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>
Subject: [patch 21/28] posix-timer: Update comment
Date: Tue, 01 Feb 2011 13:52:15 -0000 [thread overview]
Message-ID: <20110201134419.487708516@linutronix.de> (raw)
In-Reply-To: <20110201134320.688829863@linutronix.de>
[-- Attachment #1: posix-timer-update-comment.patch --]
[-- Type: text/plain, Size: 2792 bytes --]
From: Richard Cochran <richardcochran@gmail.com>
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>
Cc: John Stultz <john.stultz@linaro.org>
---
kernel/posix-timers.c | 25 +++++++------------------
1 file changed, 7 insertions(+), 18 deletions(-)
Index: linux-2.6-tip/kernel/posix-timers.c
===================================================================
--- linux-2.6-tip.orig/kernel/posix-timers.c
+++ linux-2.6-tip/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
next prev parent reply other threads:[~2011-02-01 13:53 UTC|newest]
Thread overview: 111+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-01 13:50 [patch 00/28] Rework of the PTP support series core code Thomas Gleixner
2011-02-01 13:50 ` [patch 01/28] time: Correct the *settime* parameters Thomas Gleixner
2011-02-01 14:22 ` Thomas Gleixner
2011-02-01 20:32 ` john stultz
2011-02-02 21:54 ` [tip:timers/core] " tip-bot for Richard Cochran
2011-02-01 13:51 ` [patch 02/28] posix-timers: Define nanosleep not supported error separate Thomas Gleixner
2011-02-01 20:32 ` John Stultz
2011-02-02 21:55 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 03/28] posix-timers: Cleanup struct initializers Thomas Gleixner
2011-02-01 20:33 ` john stultz
2011-02-02 21:55 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 04/28] posix-timers: Introduce clock_posix_cpu Thomas Gleixner
2011-02-01 20:34 ` john stultz
2011-02-02 21:56 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 05/28] posix-timers: Introduce clockid_to_kclock() Thomas Gleixner
2011-02-01 20:37 ` john stultz
2011-02-02 21:56 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 06/28] posix-timers: Convert clock_nanosleep to clockid_to_kclock() Thomas Gleixner
2011-02-01 20:41 ` john stultz
2011-02-02 21:57 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 07/28] posix-timers: Convert clock_nanosleep_restart " Thomas Gleixner
2011-02-01 20:42 ` John Stultz
2011-02-01 20:46 ` Thomas Gleixner
2011-02-01 21:08 ` Thomas Gleixner
2011-02-02 21:57 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 08/28] posix-timers: Cleanup restart_block usage Thomas Gleixner
2011-02-01 21:11 ` john stultz
2011-02-01 21:14 ` Thomas Gleixner
2011-02-02 21:57 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 09/28] thread_info: Remove legacy arg0-3 from restart_block Thomas Gleixner
2011-02-01 21:11 ` john stultz
2011-02-02 21:58 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 10/28] posix-cpu-timers: Remove the stub nanosleep functions Thomas Gleixner
2011-02-01 21:14 ` John Stultz
2011-02-02 21:58 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 11/28] posix-timers: Convert clock_settime to clockid_to_kclock() Thomas Gleixner
2011-02-01 21:15 ` john stultz
2011-02-02 21:59 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 12/28] posix-timers: Convert clock_gettime() " Thomas Gleixner
2011-02-01 21:16 ` john stultz
2011-02-02 9:09 ` Richard Cochran
2011-02-02 9:55 ` Thomas Gleixner
2011-02-02 21:59 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 13/28] posix-timers: Convert clock_getres() " Thomas Gleixner
2011-02-01 21:17 ` john stultz
2011-02-02 22:00 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 14/28] posix-timers: Remove useless res field from k_clock Thomas Gleixner
2011-02-01 21:18 ` john stultz
2011-02-02 22:00 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:51 ` [patch 15/28] posix-timers: Convert timer_create() to clockid_to_kclock() Thomas Gleixner
2011-02-01 21:20 ` john stultz
2011-02-02 22:00 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:52 ` [patch 16/28] posix-timers: Convert timer_settime() " Thomas Gleixner
2011-02-01 21:22 ` John Stultz
2011-02-02 22:01 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:52 ` [patch 17/28] posix-timers: Convert timer_gettime() " Thomas Gleixner
2011-02-01 21:23 ` john stultz
2011-02-02 22:01 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:52 ` [patch 18/28] posix-timers: Convert timer_delete() " Thomas Gleixner
2011-02-01 21:24 ` john stultz
2011-02-02 8:29 ` Richard Cochran
2011-02-02 9:53 ` Thomas Gleixner
2011-02-02 22:02 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:52 ` [patch 19/28] posix-timers: Remove CLOCK_DISPATCH leftovers Thomas Gleixner
2011-02-01 21:25 ` john stultz
2011-02-02 22:02 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:52 ` [patch 20/28] posix-timers: Make posix-cpu-timers functions static Thomas Gleixner
2011-02-01 21:28 ` John Stultz
2011-02-01 21:33 ` Thomas Gleixner
2011-02-02 22:03 ` [tip:timers/core] " tip-bot for Thomas Gleixner
2011-02-01 13:52 ` Thomas Gleixner [this message]
2011-02-01 21:28 ` [patch 21/28] posix-timer: Update comment john stultz
2011-02-02 22:03 ` [tip:timers/core] " tip-bot for Richard Cochran
2011-02-01 13:52 ` [patch 22/28] time: Introduce timekeeping_inject_offset Thomas Gleixner
2011-02-02 22:03 ` [tip:timers/core] " tip-bot for John Stultz
2011-02-01 13:52 ` [patch 23/28] ntp: Add ADJ_SETOFFSET mode bit Thomas Gleixner
2011-02-01 21:30 ` john stultz
2011-02-01 13:52 ` [patch 24/28] posix-clocks: Splitout compat timex accessors Thomas Gleixner
2011-02-01 21:31 ` john stultz
2011-02-02 22:04 ` [tip:timers/core] time: " tip-bot for Richard Cochran
2011-02-01 13:52 ` [patch 25/28] posix clocks: Introduce a syscall for clock tuning Thomas Gleixner
2011-02-01 21:35 ` john stultz
2011-02-02 22:04 ` [tip:timers/core] posix-timers: " tip-bot for Richard Cochran
2011-02-01 13:52 ` [patch 26/28] posix_clocks: Add clock_adjtime for x86 Thomas Gleixner
2011-02-01 21:36 ` john stultz
2011-02-02 22:05 ` [tip:timers/core] x86: " tip-bot for Richard Cochran
2011-02-01 13:52 ` [patch 27/28] posix-timers: Add support for fd based clocks Thomas Gleixner
2011-02-01 21:38 ` john stultz
2011-02-02 9:19 ` Richard Cochran
2011-02-02 10:33 ` Thomas Gleixner
2011-02-02 22:05 ` [tip:timers/core] " tip-bot for Richard Cochran
2011-02-01 13:52 ` [patch 28/28] posix clocks: Introduce dynamic clocks Thomas Gleixner
2011-02-01 21:49 ` john stultz
2011-02-01 22:04 ` Thomas Gleixner
2011-02-02 7:50 ` Richard Cochran
2011-02-02 10:37 ` Thomas Gleixner
2011-02-02 11:25 ` Thomas Gleixner
2011-02-02 22:06 ` [tip:timers/core] posix-timers: Cleanup namespace tip-bot for Thomas Gleixner
2011-02-02 22:06 ` [tip:timers/core] posix clocks: Introduce dynamic clocks tip-bot for Richard Cochran
2011-03-03 14:50 ` [patch 28/28] " torbenh
2011-03-03 16:01 ` Richard Cochran
2011-03-03 17:07 ` torbenh
2011-03-04 6:05 ` Richard Cochran
2011-02-02 8:17 ` [patch 00/28] Rework of the PTP support series core code Richard Cochran
2011-02-02 13:53 ` Richard Cochran
2011-02-02 22:04 ` [tip:timers/core] ntp: Add ADJ_SETOFFSET mode bit tip-bot for Richard Cochran
2011-02-18 9:07 ` Richard Cochran
2011-02-18 16:07 ` [tip:timers/core] ntp: Remove redundant and incorrect parameter check tip-bot for Richard Cochran
2011-03-01 15:38 ` [patch 00/28] Rework of the PTP support series core code torbenh
2011-03-01 18:50 ` Richard Cochran
2011-03-02 9:41 ` torbenh
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