Ken Chen 2d70b68d42 fix setpriority(PRIO_PGRP) thread iterator breakage
When user calls sys_setpriority(PRIO_PGRP ...) on a NPTL style multi-LWP
process, only the task leader of the process is affected, all other
sibling LWP threads didn't receive the setting.  The problem was that the
iterator used in sys_setpriority() only iteartes over one task for each
process, ignoring all other sibling thread.

Introduce a new macro do_each_pid_thread / while_each_pid_thread to walk
each thread of a process.  Convert 4 call sites in {set/get}priority and
ioprio_{set/get}.

Signed-off-by: Ken Chen <kenchen@google.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-20 15:40:32 -07:00
..
2008-07-03 09:59:03 -05:00
2008-07-26 20:53:40 -04:00
2008-08-04 21:31:34 -07:00
2008-02-08 09:22:40 -08:00
2008-07-24 10:47:33 -07:00
2008-08-01 11:25:29 -04:00
2008-08-13 12:47:36 -05:00
2008-04-29 08:06:00 -07:00
2008-07-26 20:53:40 -04:00
2008-07-26 20:53:40 -04:00
2008-07-25 10:53:34 -07:00
2008-08-04 21:56:09 -07:00
2008-07-04 09:52:14 +02:00
2008-07-26 12:00:07 -07:00
2008-08-14 12:46:20 +03:00
2008-07-25 10:53:34 -07:00
2008-07-26 20:53:40 -04:00
2008-07-26 12:00:08 -07:00
2008-07-26 12:00:08 -07:00
2008-07-26 12:00:08 -07:00
2008-08-06 12:30:04 +02:00
2008-08-04 21:56:09 -07:00
2008-01-30 13:31:46 +01:00
2008-07-26 12:00:06 -07:00
2008-05-01 13:08:16 -04:00
2008-08-01 11:25:24 -04:00
2008-07-26 20:53:40 -04:00
2008-07-14 19:10:52 +03:00
2008-02-06 10:41:07 -08:00
2008-04-29 08:06:00 -07:00
2008-07-26 12:00:05 -07:00
2008-07-28 18:10:28 +09:00
2008-07-26 12:00:05 -07:00
2008-02-14 21:13:33 -08:00
2008-07-25 10:53:35 -07:00
2008-07-02 15:06:27 -06:00
2008-08-04 21:31:34 -07:00