tree d2d4b7b41f163e011cb7a373376c9ae87e5941be
parent fe0faa005d43bc44c357631d51c273806086caa4
author Oleg Nesterov <oleg@redhat.com> 1303933454 +0200
committer Oleg Nesterov <oleg@redhat.com> 1303988498 +0200

signal: introduce do_sigtimedwait() to factor out compat/native code

Factor out the common code in sys_rt_sigtimedwait/compat_sys_rt_sigtimedwait
to the new helper, do_sigtimedwait().

Add the comment to document the extra tick we add to timespec_to_jiffies(ts),
thanks to Linus who explained this to me.

Perhaps it would be better to move compat_sys_rt_sigtimedwait() into
signal.c under CONFIG_COMPAT, then we can make do_sigtimedwait() static.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Matt Fleming <matt.fleming@linux.intel.com>