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authorGermano Percossi <germano.percossi@citrix.com>2017-04-07 12:29:36 +0100
committerSteve French <smfrench@gmail.com>2017-04-10 23:36:39 -0500
commit18ea43113f5b74a97dd4be9bddbac10d68b1a6ce (patch)
tree0d41595351e06d0e424cce6e13aa096a106ef947 /fs
parent40920c2bb119fd49ba03e2f97a172171781be442 (diff)
downloadlinux-18ea43113f5b74a97dd4be9bddbac10d68b1a6ce.tar.bz2
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: Germano Percossi <germano.percossi@citrix.com> Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com> CC: Stable <stable@vger.kernel.org> Signed-off-by: Steve French <smfrench@gmail.com>
Diffstat (limited to 'fs')
-rw-r--r--fs/cifs/smb2pdu.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 66fa1b941cdf..d09e98bb8584 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -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 */