Pavel Shilovsky 5234d7e1c7 CIFS: Respect O_SYNC and O_DIRECT flags during reconnect
commit 44805b0e62f15e90d233485420e1847133716bdc upstream.

Currently the client translates O_SYNC and O_DIRECT flags
into corresponding SMB create options when openning a file.
The problem is that on reconnect when the file is being
re-opened the client doesn't set those flags and it causes
a server to reject re-open requests because create options
don't match. The latter means that any subsequent system
call against that open file fail until a share is re-mounted.

Fix this by properly setting SMB create options when
re-openning files after reconnects.

Fixes: 1013e760d10e6: ("SMB3: Don't ignore O_SYNC/O_DSYNC and O_DIRECT flags")
Cc: Stable <stable@vger.kernel.org>
Signed-off-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-12-21 10:42:30 +01:00
..
2016-10-15 12:09:13 -07:00
2019-08-06 18:29:38 +02:00
2019-12-21 10:41:21 +01:00
2019-12-21 10:42:09 +01:00
2019-12-21 10:41:30 +01:00
2017-11-30 08:39:04 +00:00
2019-03-13 14:04:52 -07:00
2018-12-21 14:11:31 +01:00
2016-09-27 21:20:53 -04:00
2018-02-17 13:21:15 +01:00
2017-06-14 15:06:01 +02:00