diff options
Diffstat (limited to 'fs/cifs/cifssmb.c')
| -rw-r--r-- | fs/cifs/cifssmb.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c index 7b1d0d71f3f1..3ef2796e2f24 100644 --- a/fs/cifs/cifssmb.c +++ b/fs/cifs/cifssmb.c @@ -120,15 +120,18 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command) * only tree disconnect, open, and write, (and ulogoff which does not * have tcon) are allowed as we start force umount */ + spin_lock(&cifs_tcp_ses_lock); if (tcon->tidStatus == CifsExiting) { if (smb_command != SMB_COM_WRITE_ANDX && smb_command != SMB_COM_OPEN_ANDX && smb_command != SMB_COM_TREE_DISCONNECT) { + spin_unlock(&cifs_tcp_ses_lock); cifs_dbg(FYI, "can not send cmd %d while umounting\n", smb_command); return -ENODEV; } } + spin_unlock(&cifs_tcp_ses_lock); retries = server->nr_targets; @@ -148,8 +151,12 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command) } /* are we still trying to reconnect? */ - if (server->tcpStatus != CifsNeedReconnect) + spin_lock(&cifs_tcp_ses_lock); + if (server->tcpStatus != CifsNeedReconnect) { + spin_unlock(&cifs_tcp_ses_lock); break; + } + spin_unlock(&cifs_tcp_ses_lock); if (retries && --retries) continue; @@ -186,11 +193,14 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command) * and the server never sends an answer the socket will be closed * and tcpStatus set to reconnect. */ + spin_lock(&cifs_tcp_ses_lock); if (server->tcpStatus == CifsNeedReconnect) { + spin_unlock(&cifs_tcp_ses_lock); rc = -EHOSTDOWN; mutex_unlock(&ses->session_mutex); goto out; } + spin_unlock(&cifs_tcp_ses_lock); /* * need to prevent multiple threads trying to simultaneously |