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
[ Upstream commit a68106a6928e0a6680f12bcc7338c0dddcfe4d11 ]
When the network stack returns various errors, we today bubble up the error to the user (in case of soft mounts).
This change translates all network errors except -EINTR and -EAGAIN to -ECONNABORTED. A similar approach is taken when we receive network errors when reading from the socket.
The change also forces the cifsd thread to reconnect during it's next activity.
Signed-off-by: Shyam Prasad N sprasad@microsoft.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/smb/client/transport.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/fs/smb/client/transport.c b/fs/smb/client/transport.c index 8695c9961f5aa..e00278fcfa4fa 100644 --- a/fs/smb/client/transport.c +++ b/fs/smb/client/transport.c @@ -400,10 +400,17 @@ __smb_send_rqst(struct TCP_Server_Info *server, int num_rqst, server->conn_id, server->hostname); } smbd_done: - if (rc < 0 && rc != -EINTR) + /* + * there's hardly any use for the layers above to know the + * actual error code here. All they should do at this point is + * to retry the connection and hope it goes away. + */ + if (rc < 0 && rc != -EINTR && rc != -EAGAIN) { cifs_server_dbg(VFS, "Error %d sending data on socket to server\n", rc); - else if (rc > 0) + rc = -ECONNABORTED; + cifs_signal_cifsd_for_reconnect(server, false); + } else if (rc > 0) rc = 0; out: cifs_in_send_dec(server);