This is a first user of sys_indirect. Several of the socket-related system
calls which produce a file handle now can be passed an additional parameter
to set the FD_CLOEXEC flag.
socket.c | 21 +++++++++++++--------
1 file changed, 13 insertions(+), 8 deletions(-)
--- a/net/socket.c
+++ b/net/socket.c
@@ -344,11 +344,11 @@ static struct dentry_operations sockfs_dentry_operations = {
* but we take care of internal coherence yet.
*/
-static int sock_alloc_fd(struct file **filep)
+static int sock_alloc_fd(struct file **filep, int flags)
{
int fd;
- fd = get_unused_fd();
+ fd = get_unused_fd_flags(flags);
if (likely(fd >= 0)) {
struct file *file = get_empty_filp();
@@ -391,10 +391,10 @@ static int sock_attach_fd(struct socket *sock, struct file *file)
return 0;
}
-int sock_map_fd(struct socket *sock)
+static int sock_map_fd_flags(struct socket *sock, int flags)
{
struct file *newfile;
- int fd = sock_alloc_fd(&newfile);
+ int fd = sock_alloc_fd(&newfile, flags);
if (likely(fd >= 0)) {
int err = sock_attach_fd(sock, newfile);
@@ -409,6 +409,11 @@ int sock_map_fd(struct socket *sock)
return fd;
}
+int sock_map_fd(struct socket *sock)
+{
+ return sock_map_fd_flags(sock, 0);
+}
+
static struct socket *sock_from_file(struct file *file, int *err)
{
if (file->f_op == &socket_file_ops)
@@ -1208,7 +1213,7 @@ asmlinkage long sys_socket(int family, int type, int protocol)
if (retval < 0)
goto out;
- retval = sock_map_fd(sock);
+ retval = sock_map_fd_flags(sock, current->indirect_params.file_flags.flags);
if (retval < 0)
goto out_release;
@@ -1249,13 +1254,13 @@ asmlinkage long sys_socketpair(int family, int type, int protocol,
if (err < 0)
goto out_release_both;
- fd1 = sock_alloc_fd(&newfile1);
+ fd1 = sock_alloc_fd(&newfile1, current->indirect_params.file_flags.flags);
if (unlikely(fd1 < 0)) {
err = fd1;
goto out_release_both;
}
- fd2 = sock_alloc_fd(&newfile2);
+ fd2 = sock_alloc_fd(&newfile2, current->indirect_params.file_flags.flags);
if (unlikely(fd2 < 0)) {
err = fd2;
put_filp(newfile1);
@@ -1411,7 +1416,7 @@ asmlinkage long sys_accept(int fd, struct sockaddr __user *upeer_sockaddr,
*/
__module_get(newsock->ops->owner);
- newfd = sock_alloc_fd(&newfile);
+ newfd = sock_alloc_fd(&newfile, current->indirect_params.file_flags.flags);
if (unlikely(newfd < 0)) {
err = newfd;
sock_release(newsock);