Make sigprocmask() available to kernel threads too, since a lot of

them do want to temporarily block signals.

Kernel users can also block signals that are normally unblockable
to user space, ie SIGKILL and SIGSTOP.

Make nfsd and autofs use the new interface, as an example to others. 

1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 53d9e4324557..dd2e25e2129f 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -204,6 +204,7 @@ static inline void init_sigpending(struct sigpending *sig)
 }
 
 extern long do_sigpending(void *, unsigned long);
+extern int sigprocmask(int, sigset_t *, sigset_t *);
 
 #ifndef HAVE_ARCH_GET_SIGNAL_TO_DELIVER
 struct pt_regs;