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47e65328a7
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Oleg Nesterov 47e65328a7 [PATCH] pids: kill PIDTYPE_TGID 
This patch kills PIDTYPE_TGID pid_type thus saving one hash table in
kernel/pid.c and speeding up subthreads create/destroy a bit.  It is also a
preparation for the further tref/pids rework.

This patch adds 'struct list_head thread_group' to 'struct task_struct'
instead.

We don't detach group leader from PIDTYPE_PID namespace until another
thread inherits it's ->pid == ->tgid, so we are safe wrt premature
free_pidmap(->tgid) call.

Currently there are no users of find_task_by_pid_type(PIDTYPE_TGID).
Should the need arise, we can use find_task_by_pid()->group_leader.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Acked-By: Eric Biederman <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-28 18:36:44 -08:00
..
irq [PATCH] warn if free_irq() is called from IRQ context 2006-03-26 08:56:53 -08:00
power [PATCH] swswsup: return correct load_image error 2006-03-26 08:56:55 -08:00
.gitignore
acct.c [PATCH] move capable() to capability.h 2006-01-11 18:42:13 -08:00
audit.c [PATCH] fix audit_init failure path 2006-03-20 14:08:55 -05:00
audit.h [PATCH] sem2mutex: audit_netlink_sem 2006-03-20 14:08:55 -05:00
auditfilter.c [PATCH] sem2mutex: audit_netlink_sem 2006-03-20 14:08:55 -05:00
auditsc.c Merge branch 'audit.b3' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current 2006-03-25 09:24:53 -08:00
capability.c [PATCH] refactor capable() to one implementation, add __capable() helper 2006-03-25 08:22:56 -08:00
compat.c [PATCH] lightweight robust futexes: compat 2006-03-27 08:44:49 -08:00
configs.c
cpu.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
cpuset.c [PATCH] cpuset: remove useless local variable initialization 2006-03-24 07:33:24 -08:00
dma.c
exec_domain.c [PATCH] Fix module refcount leak in __set_personality() 2006-03-24 07:33:30 -08:00
exit.c [PATCH] pids: kill PIDTYPE_TGID 2006-03-28 18:36:44 -08:00
extable.c
fork.c [PATCH] pids: kill PIDTYPE_TGID 2006-03-28 18:36:44 -08:00
futex_compat.c [PATCH] compat_sys_futex() warning fix 2006-03-28 09:16:09 -08:00
futex.c [PATCH] lightweight robust futexes updates 2006-03-27 08:44:49 -08:00
hrtimer.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
intermodule.c [PATCH] missing license tag in intermodule 2006-02-05 11:06:52 -08:00
itimer.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
kallsyms.c
Kconfig.hz
Kconfig.preempt
kexec.c [PATCH] move capable() to capability.h 2006-01-11 18:42:13 -08:00
kfifo.c
kmod.c [PATCH] wait_for_helper: trivial style cleanup 2006-03-28 18:36:41 -08:00
kprobes.c [PATCH] kretprobe instance recycled by parent process 2006-03-26 08:57:04 -08:00
ksysfs.c [PATCH] fix build error if CONFIG_SYSFS=n 2006-03-24 07:33:31 -08:00
kthread.c [PATCH] find_task_by_pid() needs tasklist_lock 2006-03-25 08:22:57 -08:00
Makefile [PATCH] lightweight robust futexes: compat 2006-03-27 08:44:49 -08:00
module.c [PATCH] symversion warning fix 2006-03-28 09:16:02 -08:00
mutex-debug.c [PATCH] fix/simplify mutex debugging code 2006-01-11 08:14:16 -08:00
mutex-debug.h [PATCH] mutex subsystem, debugging code 2006-01-09 15:59:20 -08:00
mutex.c [PATCH] mutex: trivial whitespace cleanups 2006-01-10 14:27:59 -08:00
mutex.h
panic.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
params.c [PATCH] Change dash2underscore() return value to char 2006-03-28 09:16:03 -08:00
pid.c [PATCH] pidhash: don't count idle threads 2006-03-28 18:36:41 -08:00
posix-cpu-timers.c [PATCH] hrtimer: switch clock_nanosleep to hrtimer nanosleep API 2006-01-10 08:01:38 -08:00
posix-timers.c [PATCH] hrtimers: remove data field 2006-03-26 08:57:03 -08:00
printk.c [PATCH] console_setup() depends (wrongly?) on CONFIG_PRINTK 2006-03-24 07:33:27 -08:00
profile.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
ptrace.c [PATCH] don't use REMOVE_LINKS/SET_LINKS for reparenting 2006-03-28 18:36:41 -08:00
rcupdate.c [PATCH] rcu_process_callbacks: don't cli() while testing ->nxtlist 2006-03-24 07:33:20 -08:00
rcutorture.c [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
relay.c [PATCH] relay: consolidate sendfile() and read() code 2006-03-23 19:58:45 +01:00
resource.c [PATCH] kernel/resource.c: __check_region(): remove pointless __deprecated 2006-01-10 08:02:02 -08:00
sched.c [PATCH] for_each_possible_cpu: fixes for generic part 2006-03-28 09:16:05 -08:00
seccomp.c
signal.c [PATCH] do_sigaction: don't take tasklist_lock 2006-03-28 18:36:44 -08:00
softirq.c [PATCH] on_each_cpu(): disable local interrupts 2006-03-22 07:53:59 -08:00
softlockup.c [PATCH] Notifier chain update: API changes 2006-03-27 08:44:50 -08:00
spinlock.c [PATCH] BUILD_LOCK_OPS: cleanup preempt_disable() usage 2006-03-23 07:38:16 -08:00
stop_machine.c [PATCH] Remove set_fs() in stop_machine() 2006-01-10 08:01:25 -08:00
sys_ni.c [PATCH] lightweight robust futexes: core 2006-03-27 08:44:49 -08:00
sys.c [PATCH] sys_times: don't take tasklist_lock 2006-03-28 18:36:43 -08:00
sysctl.c [PATCH] Range checking in do_proc_dointvec_(userhz_)jiffies_conv 2006-03-24 07:33:20 -08:00
time.c [PATCH] hrtimers: remove nsec_t typedef 2006-03-26 08:57:03 -08:00
timer.c [PATCH] remove pps support 2006-03-25 08:23:02 -08:00
uid16.c [PATCH] move capable() to capability.h 2006-01-11 18:42:13 -08:00
user.c [PATCH] free_uid() locking improvement 2006-03-24 07:33:20 -08:00
wait.c
workqueue.c [SCSI] add execute_in_process_context() API 2006-02-27 23:34:40 -06:00