Oleg Nesterov a90e984c8a sched_show_task: fix unsafe usage of ->real_parent ... rcu_read_lock() can not protect p->real_parent if release_task(p) was already called, change sched_show_task() to check pis_alive() like other users do. Note: we need some helpers to cleanup the code like this. And it seems that that the usage of cpu_curr(cpu) in dump_cpu_task() is not safe too. Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Aaron Tomlin <atomlin@redhat.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com>, Cc: Sterling Alexander <stalexan@redhat.com> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Roland McGrath <roland@hack.frob.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2014-12-10 17:41:09 -08:00
..
auto_group.c
auto_group.h
clock.c
completion.c
core.c	sched_show_task: fix unsafe usage of ->real_parent	2014-12-10 17:41:09 -08:00
cpuacct.c
cpuacct.h
cpudeadline.c
cpudeadline.h
cpupri.c
cpupri.h
cputime.c
deadline.c
debug.c
fair.c
features.h
idle_task.c	sched: Provide update_curr callbacks for stop/idle scheduling classes	2014-11-23 14:14:40 -08:00
idle.c
Makefile
proc.c
rt.c
sched.h
stats.c
stats.h
stop_task.c	sched: Provide update_curr callbacks for stop/idle scheduling classes	2014-11-23 14:14:40 -08:00
wait.c