kernel/signal.c: protect the SIGNAL_UNKILLABLE tasks from !sig_kernel_only() signals
authorOleg Nesterov <oleg@redhat.com>
Fri, 17 Nov 2017 23:30:04 +0000 (15:30 -0800)
committerLinus Torvalds <torvalds@linux-foundation.org>
Sat, 18 Nov 2017 00:10:03 +0000 (16:10 -0800)
commitac25385089f673560867eb5179228a44ade0cfc1
treedb30cc877ae01470a59fe0a1ccb633b8fb945053
parent628c1bcba204052d19b686b5bac149a644cdb72e
kernel/signal.c: protect the SIGNAL_UNKILLABLE tasks from !sig_kernel_only() signals

Change sig_task_ignored() to drop the SIG_DFL && !sig_kernel_only()
signals even if force == T.  This simplifies the next change and this
matches the same check in get_signal() which will drop these signals
anyway.

Link: http://lkml.kernel.org/r/20171103184227.GC21036@redhat.com
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Tested-by: Kyle Huey <me@kylehuey.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kernel/signal.c