linux/kernel
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
..
irq genirq: switch /proc/irq/*/smp_affinity et al to seqfiles 2008-08-12 16:07:30 -07:00
power
time sched clock: revert various sched_clock() changes 2008-07-31 17:20:29 +02:00
trace Merge branch 'linus' into cpus4096 2008-07-28 23:32:00 +02:00
.gitignore
acct.c
audit_tree.c
audit.c [PATCH] Fix the bug of using AUDIT_STATUS_RATE_LIMIT when set fail, no error output. 2008-08-01 12:15:16 -04:00
audit.h
auditfilter.c Re: [PATCH] the loginuid field should be output in all AUDIT_CONFIG_CHANGE audit messages 2008-08-01 12:15:03 -04:00
auditsc.c Re: [PATCH] Fix the kernel panic of audit_filter_task when key field is set 2008-08-04 06:13:50 -04:00
backtracetest.c
bounds.c
capability.c security: Fix setting of PF_SUPERPRIV by __capable() 2008-08-14 22:59:43 +10:00
cgroup_debug.c
cgroup.c cgroup: uninline cgroup_has_css_refs() 2008-07-30 09:41:44 -07:00
compat.c
configs.c
cpu.c cpu hotplug: s390 doesn't support additional_cpus anymore. 2008-08-12 16:07:28 -07:00
cpuset.c cpuset: clean up cpuset hierarchy traversal code 2008-07-30 09:41:44 -07:00
delayacct.c
dma-coherent.c DMA: make dma-coherent.c documentation kdoc-friendly 2008-08-07 06:52:01 -07:00
dma.c
exec_domain.c
exit.c tracehook: fix exit_signal=0 case 2008-08-01 12:01:11 -07:00
extable.c
fork.c mmu-notifiers: core 2008-07-28 16:30:21 -07:00
futex_compat.c
futex.c
hrtimer.c
itimer.c
kallsyms.c
Kconfig.hz sched: fix SCHED_HRTICK dependency 2008-07-28 14:37:38 +02:00
Kconfig.preempt
kexec.c kexec: use a mutex for locking rather than xchg() 2008-08-15 08:35:43 -07:00
kfifo.c
kgdb.c kgdb: fix gdb serial thread queries 2008-08-01 08:39:35 -05:00
kmod.c
kprobes.c
ksysfs.c
kthread.c
latencytop.c
lockdep_internals.h lockdep: build fix 2008-08-13 12:55:10 +02:00
lockdep_proc.c lockdep: fix build if CONFIG_PROVE_LOCKING not defined 2008-08-15 19:22:04 +02:00
lockdep.c lockdep: fix spurious 'inconsistent lock state' warning 2008-08-18 09:42:31 +02:00
Makefile Merge branch 'linus' into core/generic-dma-coherent 2008-07-29 00:07:55 +02:00
marker.c markers: fix markers read barrier for multiple probes 2008-07-30 09:41:45 -07:00
module.c modules: extend initcall_debug functionality to the module loader 2008-08-12 17:52:54 +10:00
mutex-debug.c
mutex-debug.h
mutex.c locking: fix mutex @key parameter kernel-doc notation 2008-07-28 18:12:36 +02:00
mutex.h
notifier.c
ns_cgroup.c
nsproxy.c
panic.c
params.c
pid_namespace.c
pid.c
pm_qos_params.c pm_qos: spelling fixes 2008-08-05 14:33:50 -07:00
posix-cpu-timers.c
posix-timers.c Merge branch 'timers-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-08-11 16:46:11 -07:00
printk.c printk: fix comment for printk ratelimiting 2008-07-30 09:41:45 -07:00
profile.c
ptrace.c security: Fix setting of PF_SUPERPRIV by __capable() 2008-08-14 22:59:43 +10:00
rcuclassic.c stop_machine: Wean existing callers off stop_machine_run() 2008-07-28 12:16:31 +10:00
rcupdate.c
rcupreempt_trace.c
rcupreempt.c
rcutorture.c
relay.c relay: fix "full buffer with exactly full last subbuffer" accounting problem 2008-08-05 14:33:46 -07:00
res_counter.c
resource.c resource: add resource_size() 2008-07-30 09:41:43 -07:00
rtmutex_common.h
rtmutex-debug.c
rtmutex-debug.h
rtmutex-tester.c
rtmutex.c
rtmutex.h
rwsem.c
sched_clock.c sched_clock: delay using sched_clock() 2008-08-11 08:59:03 +02:00
sched_cpupri.c
sched_cpupri.h
sched_debug.c
sched_fair.c sched: fix mysql+oltp regression 2008-08-11 14:49:29 +02:00
sched_features.h
sched_idletask.c
sched_rt.c sched: fix rt-bandwidth hotplug race 2008-08-14 15:50:58 +02:00
sched_stats.h
sched.c Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip 2008-08-16 17:15:32 -07:00
seccomp.c
semaphore.c semaphore: __down_common: use signal_pending_state() 2008-08-05 14:33:47 -07:00
signal.c tracehook: fix SA_NOCLDWAIT 2008-08-19 20:37:07 -07:00
smp.c generic-ipi: fix stack and rcu interaction bug in smp_call_function_mask(), fix 2008-08-12 11:21:27 +02:00
softirq.c
softlockup.c
spinlock.c lockdep: spin_lock_nest_lock(), checkpatch fixes 2008-08-13 13:56:51 +02:00
srcu.c
stacktrace.c
stop_machine.c stop_machine: remove unused variable 2008-08-12 17:52:55 +10:00
sys_ni.c
sys.c fix setpriority(PRIO_PGRP) thread iterator breakage 2008-08-20 15:40:32 -07:00
sysctl_check.c
sysctl.c
taskstats.c
test_kprobes.c
time.c
timeconst.pl
timer.c
tsacct.c task IO accounting: move all IO statistics in struct task_io_accounting 2008-07-27 16:12:28 -07:00
uid16.c
user_namespace.c
user.c
utsname_sysctl.c
utsname.c
wait.c
workqueue.c Merge branch 'core/locking' into core/urgent 2008-08-12 00:11:49 +02:00