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Commit 18ea4311 authored by Germano Percossi's avatar Germano Percossi Committed by Steve French
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CIFS: reconnect thread reschedule itself 



In case of error, smb2_reconnect_server reschedule itself
with a delay, to avoid being too aggressive.

Signed-off-by: default avatarGermano Percossi <germano.percossi@citrix.com>
Reviewed-by: default avatarPavel Shilovsky <pshilov@microsoft.com>
CC: Stable <stable@vger.kernel.org>
Signed-off-by: default avatarSteve French <smfrench@gmail.com>
parent 40920c2b

fs/cifs/smb2pdu.c

+9 −1
Original line number Diff line number Diff line
@@ -2181,6 +2181,9 @@ void smb2_reconnect_server(struct work_struct *work) 
	struct cifs_tcon *tcon, *tcon2;

	struct list_head tmp_list;

	int tcon_exist = false;

	int rc;

	int resched = false;





	/* Prevent simultaneous reconnects that can corrupt tcon->rlist list */

	mutex_lock(&server->reconnect_mutex);
@@ -2208,13 +2211,18 @@ void smb2_reconnect_server(struct work_struct *work) 
	spin_unlock(&cifs_tcp_ses_lock);



	list_for_each_entry_safe(tcon, tcon2, &tmp_list, rlist) {

		if (!smb2_reconnect(SMB2_INTERNAL_CMD, tcon))

		rc = smb2_reconnect(SMB2_INTERNAL_CMD, tcon);

		if (!rc)

			cifs_reopen_persistent_handles(tcon);

		else

			resched = true;

		list_del_init(&tcon->rlist);

		cifs_put_tcon(tcon);

	}



	cifs_dbg(FYI, "Reconnecting tcons finished\n");

	if (resched)

		queue_delayed_work(cifsiod_wq, &server->reconnect, 2 * HZ);

	mutex_unlock(&server->reconnect_mutex);



	/* now we can safely release srv struct */