Commit 97ed55d2 authored by Al Viro's avatar Al Viro
Browse files

do_sys_truncate(): switch to CLASS(filename) 



Note that failures from filename_lookup() are final - ESTALE returned
by it means that retry had been done by filename_lookup() and it failed
there.

Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
parent 7273ed4e

fs/open.c

+5 −7
Original line number Diff line number Diff line
@@ -129,25 +129,23 @@ EXPORT_SYMBOL_GPL(vfs_truncate); 
int do_sys_truncate(const char __user *pathname, loff_t length)

{

	unsigned int lookup_flags = LOOKUP_FOLLOW;

	struct filename *name;

	struct path path;

	int error;



	if (length < 0)	/* sorry, but loff_t says... */

		return -EINVAL;



	name = getname(pathname);

	CLASS(filename, name)(pathname);

retry:

	error = filename_lookup(AT_FDCWD, name, lookup_flags, &path, NULL);

	if (!error) {

		error = vfs_truncate(&path, length);

		path_put(&path);

	}

		if (retry_estale(error, lookup_flags)) {

			lookup_flags |= LOOKUP_REVAL;

			goto retry;

		}

	putname(name);

	}

	return error;

}