Oleg Nesterov 6b3934ef52 [PATCH] copy_process: cleanup bad_fork_cleanup_signal ... __exit_signal() does important cleanups atomically under ->siglock. It is also called from copy_process's error path. This is not good, for example we can't move __unhash_process() under ->siglock for that reason. We should not mix these 2 paths, just look at ugly 'if (p->sighand)' under 'bad_fork_cleanup_sighand:' label. For copy_process() case it is sufficient to just backout copy_signal(), nothing more. Again, nobody can see this task yet. For CLONE_THREAD case we just decrement signal->count, otherwise nobody can see this ->signal and we can free it lockless. This patch assumes it is safe to do exit_thread_group_keys() without tasklist_lock. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>		2006-03-28 18:36:42 -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
audit.c
audit.h
auditfilter.c
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
dma.c
exec_domain.c
exit.c	[PATCH] release_task: replace open-coded ptrace_unlink()	2006-03-28 18:36:41 -08:00
extable.c
fork.c	[PATCH] copy_process: cleanup bad_fork_cleanup_signal	2006-03-28 18:36:42 -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
itimer.c	[PATCH] hrtimers: remove data field	2006-03-26 08:57:03 -08:00
kallsyms.c
Kconfig.hz
Kconfig.preempt
kexec.c
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
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
mutex-debug.h
mutex.c
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
posix-timers.c	[PATCH] hrtimers: remove data field	2006-03-26 08:57:03 -08:00
printk.c
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
rcutorture.c	[PATCH] for_each_possible_cpu: fixes for generic part	2006-03-28 09:16:05 -08:00
relay.c
resource.c
sched.c	[PATCH] for_each_possible_cpu: fixes for generic part	2006-03-28 09:16:05 -08:00
seccomp.c
signal.c	[PATCH] copy_process: cleanup bad_fork_cleanup_signal	2006-03-28 18:36:42 -08:00
softirq.c
softlockup.c	[PATCH] Notifier chain update: API changes	2006-03-27 08:44:50 -08:00
spinlock.c
stop_machine.c
sys_ni.c	[PATCH] lightweight robust futexes: core	2006-03-27 08:44:49 -08:00
sys.c	[PATCH] Notifier chain update: API changes	2006-03-27 08:44:50 -08:00
sysctl.c
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
user.c
wait.c
workqueue.c