linux-kernel - [PATCH 2.6.30] schedule_work() documentation improvements

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <200907301900.54202.bart.vanassche@gmail.com>
Date:	Thu, 30 Jul 2009 19:00:53 +0200
From:	Bart Van Assche <bart.vanassche@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	"Greg Kroah-Hartman" <gregkh@...e.de>, Ingo Molnar <mingo@...e.hu>
Subject: [PATCH 2.6.30] schedule_work() documentation improvements

Two important aspects of the schedule_work() function are not yet documented:
- that it is allowed to pass a struct work_struct * to this function that
  is already on the kernel-global workqueue;
- the meaning of its return value.
The patch below documents both aspects.

Signed-off-by: Bart Van Assche <bart.vanassche@...il.com>
Cc: Greg Kroah-Hartman <gregkh@...e.de>
Cc: Ingo Molnar <mingo@...e.hu>

diff -uprN orig/linux-2.6.30/kernel/workqueue.c linux-2.6.30/kernel/workqueue.c
--- orig/linux-2.6.30/kernel/workqueue.c	2009-06-10 05:05:27.000000000 +0200
+++ linux-2.6.30/kernel/workqueue.c	2009-07-30 18:58:07.000000000 +0200
@@ -603,7 +603,11 @@ static struct workqueue_struct *keventd_
  * schedule_work - put work task in global workqueue
  * @work: job to be done
  *
- * This puts a job in the kernel-global workqueue.
+ * Returns zero if @work was already on the kernel-global workqueue and
+ * non-zero otherwise.
+ *
+ * This puts a job in the kernel-global workqueue if it was not already queued
+ * and leaves it in the same position on the kernel-global workqueue otherwise.
  */
 int schedule_work(struct work_struct *work)
 {
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/