Commit 38bcc785 authored Jun 19, 2020 by Zhang Xiaoxu Committed by Greg Kroah-Hartman Jul 16, 2020

cifs: update ctime and mtime during truncate



[ Upstream commit 5618303d8516f8ac5ecfe53ee8e8bc9a40eaf066 ]

As the man description of the truncate, if the size changed,
then the st_ctime and st_mtime fields should be updated. But
in cifs, we doesn't do it.

It lead the xfstests generic/313 failed.

So, add the ATTR_MTIME|ATTR_CTIME flags on attrs when change
the file size

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent 7e7f71be

fs/cifs/inode.c

+9 −0

Original line number	Diff line number	Diff line
		@@ -2225,6 +2225,15 @@ cifs_set_file_size(struct inode inode, struct iattr attrs,
		if (rc == 0) {
		cifsInode->server_eof = attrs->ia_size;
		cifs_setsize(inode, attrs->ia_size);

		/*
		* The man page of truncate says if the size changed,
		* then the st_ctime and st_mtime fields for the file
		* are updated.
		*/
		attrs->ia_ctime = attrs->ia_mtime = current_time(inode);
		attrs->ia_valid \|= ATTR_CTIME \| ATTR_MTIME;

		cifs_truncate_page(inode->i_mapping, inode->i_size);
		}