summary refs log tree commit diff
path: root/fs/open.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/open.c')
-rw-r--r--fs/open.c16
1 files changed, 9 insertions, 7 deletions
diff --git a/fs/open.c b/fs/open.c
index e27c205364d3..1d9e5e98bf4e 100644
--- 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: