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cifs: update ctime and mtime during truncate 

[ Upstream commit 5618303d85 ]

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>
5.4-rM2-2.2.x-imx-squashed
Zhang Xiaoxu 2020-06-19 22:51:29 -04:00 committed by Greg Kroah-Hartman
parent 9c732cccb0
commit 15fa5dfaa4
1 changed files with 9 additions and 0 deletions
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9
fs/cifs/inode.c
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@ -2270,6 +2270,15 @@ set_size_out:
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);
}