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cifs: smbd: Return -EAGAIN when transport is reconnecting

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commit 4357d45f50 upstream.

During reconnecting, the transport may have already been destroyed and is in
the process being reconnected. In this case, return -EAGAIN to not fail and
to retry this I/O.

Signed-off-by: Long Li <longli@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Long Li
2019-10-16 13:51:56 -07:00
committed by Greg Kroah-Hartman
parent adcd240d5c
commit 77d0084bde
1 changed files with 5 additions and 2 deletions
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7
fs/cifs/transport.c
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@@ -319,8 +319,11 @@ __smb_send_rqst(struct TCP_Server_Info *server, int num_rqst,
int val = 1;
__be32 rfc1002_marker;
if (cifs_rdma_enabled(server) && server->smbd_conn) {
rc = smbd_send(server, num_rqst, rqst);
if (cifs_rdma_enabled(server)) {
/* return -EAGAIN when connecting or reconnecting */
rc = -EAGAIN;
if (server->smbd_conn)
rc = smbd_send(server, num_rqst, rqst);
goto smbd_done;
}