cifs: prevent data race in cifs_reconnect_tcon()

Browse source

[ Upstream commit 1bcd548d93 ]

Make sure to get an up-to-date TCP_Server_Info::nr_targets value prior
to waiting the server to be reconnected in cifs_reconnect_tcon().  It
is set in cifs_tcp_ses_needs_reconnect() and protected by
TCP_Server_Info::srv_lock.

Create a new cifs_wait_for_server_reconnect() helper that can be used
by both SMB2+ and CIFS reconnect code.

Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: bc962159e8 ("cifs: avoid race conditions with parallel reconnects")
Signed-off-by: Sasha Levin <sashal@kernel.org>

...

This commit is contained in:

Paulo Alcantara 2023-02-28 19:01:55 -03:00 • committed by Greg Kroah-Hartman

parent 901887a779

commit 06d17e1ba9

4 changed files with 69 additions and 101 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

fs/cifs/cifsproto.h

View file

43

fs/cifs/cifssmb.c

View file

44

fs/cifs/misc.c

View file

82

fs/cifs/smb2pdu.c

View file