add consts where appropriate in fs/nls/*

[firefly-linux-kernel-4.4.55.git] / fs / open.c

diff --git a/fs/open.c b/fs/open.c
index e27c205364d3efba824538b63a906334688ae56e..044bfa891c94c5e0d8330eea20893bf0ffffbd55 100644 (file)
--- a/fs/open.c
+++ b/fs/open.c
@@ -256,24 +256,26 @@ static long do_sys_truncate(const char __user * path, loff_t length)
        if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
                goto dput_and_out;
 
-       /*
-        * Make sure that there are no leases.
-        */
-       error = break_lease(inode, FMODE_WRITE);
+       error = get_write_access(inode);
        if (error)
                goto dput_and_out;
 
-       error = get_write_access(inode);
+       /*
+        * Make sure that there are no leases.  get_write_access() protects
+        * against the truncate racing with a lease-granting setlease().
+        */
+       error = break_lease(inode, FMODE_WRITE);
        if (error)
-               goto dput_and_out;
+               goto put_write_and_out;
 
        error = locks_verify_truncate(inode, NULL, length);
        if (!error) {
                DQUOT_INIT(inode);
                error = do_truncate(nd.dentry, length, 0, NULL);
        }
-       put_write_access(inode);
 
+put_write_and_out:
+       put_write_access(inode);
 dput_and_out:
        path_release(&nd);
 out:
@@ -755,6 +757,10 @@ static struct file *__dentry_open(struct dentry *dentry, struct vfsmount *mnt,
        f->f_op = fops_get(inode->i_fop);
        file_move(f, &inode->i_sb->s_files);
 
+       error = security_dentry_open(f);
+       if (error)
+               goto cleanup_all;
+
        if (!open && f->f_op)
                open = f->f_op->open;
        if (open) {