From: Adrian Bunk <bunk@kernel.org>

Every file should include the headers containing the prototypes for its global
functions (in this case sys_signalfd()).

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Cc: Davide Libenzi <davidel@xmailserver.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 fs/signalfd.c |    1 +
 1 file changed, 1 insertion(+)

diff -puN fs/signalfd.c~fs-signalfdc-should-include-linux-syscallsh fs/signalfd.c
--- a/fs/signalfd.c~fs-signalfdc-should-include-linux-syscallsh
+++ a/fs/signalfd.c
@@ -27,6 +27,7 @@
 #include <linux/list.h>
 #include <linux/anon_inodes.h>
 #include <linux/signalfd.h>
+#include <linux/syscalls.h>
 
 struct signalfd_ctx {
 	sigset_t sigmask;
_