6.6-stable review patch. If anyone has any objections, please let me know.
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From: Shyam Prasad N sprasad@microsoft.com
commit b4f60a053a2534c3e510ba0c1f8727566adf8317 upstream.
When calling cifs_reconnect, before the connection to the server is reestablished, the code today does a DNS resolution and updates server->dstaddr.
However, this is not necessary for secondary channels. Secondary channels use the interface list returned by the server to decide which address to connect to. And that happens after tcon is reconnected and server interfaces are requested.
Signed-off-by: Shyam Prasad N sprasad@microsoft.com Cc: stable@vger.kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/client/connect.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
--- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -408,7 +408,8 @@ static int __cifs_reconnect(struct TCP_S try_to_freeze(); cifs_server_lock(server);
- if (!cifs_swn_set_server_dstaddr(server)) { + if (!cifs_swn_set_server_dstaddr(server) && + !SERVER_IS_CHAN(server)) { /* resolve the hostname again to make sure that IP address is up-to-date */ rc = reconn_set_ipaddr_from_hostname(server); cifs_dbg(FYI, "%s: reconn_set_ipaddr_from_hostname: rc=%d\n", __func__, rc);