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-rw-r--r--include/linux/net.h3
-rw-r--r--net/socket.c17
2 files changed, 20 insertions, 0 deletions
diff --git a/include/linux/net.h b/include/linux/net.h
index 3a9b06d4d0fe..39a23af059b4 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -102,6 +102,9 @@ enum sock_type {
/* Flags for socket, socketpair, paccept */
#define SOCK_CLOEXEC O_CLOEXEC
+#ifndef SOCK_NONBLOCK
+#define SOCK_NONBLOCK O_NONBLOCK
+#endif
#endif /* ARCH_HAS_SOCKET_TYPES */
diff --git a/net/socket.c b/net/socket.c
index a0ce8ad72252..d163adff95bf 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -69,6 +69,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/mutex.h>
+#include <linux/thread_info.h>
#include <linux/wanrouter.h>
#include <linux/if_bridge.h>
#include <linux/if_frad.h>
@@ -1504,6 +1505,7 @@ out_fd:
goto out_put;
}
+#ifdef HAVE_SET_RESTORE_SIGMASK
asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
int __user *upeer_addrlen,
const sigset_t __user *sigmask,
@@ -1541,6 +1543,21 @@ asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
return ret;
}
+#else
+asmlinkage long sys_paccept(int fd, struct sockaddr __user *upeer_sockaddr,
+ int __user *upeer_addrlen,
+ const sigset_t __user *sigmask,
+ size_t sigsetsize, int flags)
+{
+ /* The platform does not support restoring the signal mask in the
+ * return path. So we do not allow using paccept() with a signal
+ * mask. */
+ if (sigmask)
+ return -EINVAL;
+
+ return do_accept(fd, upeer_sockaddr, upeer_addrlen, flags);
+}
+#endif
asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
int __user *upeer_addrlen)