Mandeep Singh Baines wrote: > To keep the complexity of the double-check locking in one place, > I moved the thread_group_leader check up into attach_task_by_pid. > This allows us to use a goto instead of returning -EAGAIN. > > While at it, converted a couple of returns to gotos and used > rcu for the !pid case also in order to simplify the logic. > > Changes in V2: > * https://lkml.org/lkml/2011/12/22/86 (Tejun Heo) > * Use a goto instead of returning -EAGAIN > > Signed-off-by: Mandeep Singh Baines <msb@xxxxxxxxxxxx> Acked-by: Li Zefan <lizf@xxxxxxxxxxxxxx> > Cc: Tejun Heo <tj@xxxxxxxxxx> > Cc: Li Zefan <lizf@xxxxxxxxxxxxxx> > Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx> > Cc: containers@xxxxxxxxxxxxxxxxxxxxxxxxxx > Cc: cgroups@xxxxxxxxxxxxxxx > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> > Cc: Oleg Nesterov <oleg@xxxxxxxxxx> > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> > Cc: Paul Menage <paul@xxxxxxxxxxxxxx> > --- > kernel/cgroup.c | 79 ++++++++++++++++++++---------------------------------- > 1 files changed, 29 insertions(+), 50 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
