autofs4: don't open-code fd_install()
The only difference between autofs_dev_ioctl_fd_install() and
fd_install() is __set_close_on_exec() done by the latter. Just
use get_unused_fd_flags(O_CLOEXEC) to allocate the descriptor
and be done with that...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/autofs4/dev-ioctl.c b/fs/autofs4/dev-ioctl.c
index abf645c..a162141 100644
--- a/fs/autofs4/dev-ioctl.c
+++ b/fs/autofs4/dev-ioctl.c
@@ -221,20 +221,6 @@
return ino && ino->sbi->type & *(unsigned *)p;
}
-static void autofs_dev_ioctl_fd_install(unsigned int fd, struct file *file)
-{
- struct files_struct *files = current->files;
- struct fdtable *fdt;
-
- spin_lock(&files->file_lock);
- fdt = files_fdtable(files);
- BUG_ON(fdt->fd[fd] != NULL);
- rcu_assign_pointer(fdt->fd[fd], file);
- __set_close_on_exec(fd, fdt);
- spin_unlock(&files->file_lock);
-}
-
-
/*
* Open a file descriptor on the autofs mount point corresponding
* to the given path and device number (aka. new_encode_dev(sb->s_dev)).
@@ -243,7 +229,7 @@
{
int err, fd;
- fd = get_unused_fd();
+ fd = get_unused_fd_flags(O_CLOEXEC);
if (likely(fd >= 0)) {
struct file *filp;
struct path path;
@@ -264,7 +250,7 @@
goto out;
}
- autofs_dev_ioctl_fd_install(fd, filp);
+ fd_install(fd, filp);
}
return fd;