From: Zhang Xiaoxu <zhangxiaoxu5@xxxxxxxxxx>
[ 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@xxxxxxxxxx>
Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@xxxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/cifs/inode.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 51d410c6f6a47..4a38f16d944db 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2219,6 +2219,15 @@ 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);
}
--
2.25.1
