diff options
Diffstat (limited to 'fs/smb/client/sess.c')
-rw-r--r-- | fs/smb/client/sess.c | 52 |
1 files changed, 20 insertions, 32 deletions
diff --git a/fs/smb/client/sess.c b/fs/smb/client/sess.c index 8b2d7c1ca428..2d3b332a79a1 100644 --- a/fs/smb/client/sess.c +++ b/fs/smb/client/sess.c @@ -332,10 +332,10 @@ cifs_disable_secondary_channels(struct cifs_ses *ses) if (iface) { spin_lock(&ses->iface_lock); - kref_put(&iface->refcount, release_iface); iface->num_channels--; if (iface->weight_fulfilled) iface->weight_fulfilled--; + kref_put(&iface->refcount, release_iface); spin_unlock(&ses->iface_lock); } @@ -439,7 +439,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) cifs_dbg(FYI, "unable to find a suitable iface\n"); } - if (!chan_index && !iface) { + if (!iface) { cifs_dbg(FYI, "unable to get the interface matching: %pIS\n", &ss); spin_unlock(&ses->iface_lock); @@ -447,7 +447,7 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) } /* now drop the ref to the current iface */ - if (old_iface && iface) { + if (old_iface) { cifs_dbg(FYI, "replacing iface: %pIS with %pIS\n", &old_iface->sockaddr, &iface->sockaddr); @@ -460,44 +460,32 @@ cifs_chan_update_iface(struct cifs_ses *ses, struct TCP_Server_Info *server) kref_put(&old_iface->refcount, release_iface); } else if (old_iface) { - cifs_dbg(FYI, "releasing ref to iface: %pIS\n", + /* if a new candidate is not found, keep things as is */ + cifs_dbg(FYI, "could not replace iface: %pIS\n", &old_iface->sockaddr); - - old_iface->num_channels--; - if (old_iface->weight_fulfilled) - old_iface->weight_fulfilled--; - - kref_put(&old_iface->refcount, release_iface); } else if (!chan_index) { /* special case: update interface for primary channel */ - cifs_dbg(FYI, "referencing primary channel iface: %pIS\n", - &iface->sockaddr); - iface->num_channels++; - iface->weight_fulfilled++; - } else { - WARN_ON(!iface); - cifs_dbg(FYI, "adding new iface: %pIS\n", &iface->sockaddr); + if (iface) { + cifs_dbg(FYI, "referencing primary channel iface: %pIS\n", + &iface->sockaddr); + iface->num_channels++; + iface->weight_fulfilled++; + } } spin_unlock(&ses->iface_lock); - spin_lock(&ses->chan_lock); - chan_index = cifs_ses_get_chan_index(ses, server); - if (chan_index == CIFS_INVAL_CHAN_INDEX) { + if (iface) { + spin_lock(&ses->chan_lock); + chan_index = cifs_ses_get_chan_index(ses, server); + if (chan_index == CIFS_INVAL_CHAN_INDEX) { + spin_unlock(&ses->chan_lock); + return 0; + } + + ses->chans[chan_index].iface = iface; spin_unlock(&ses->chan_lock); - return 0; } - ses->chans[chan_index].iface = iface; - - /* No iface is found. if secondary chan, drop connection */ - if (!iface && SERVER_IS_CHAN(server)) - ses->chans[chan_index].server = NULL; - - spin_unlock(&ses->chan_lock); - - if (!iface && SERVER_IS_CHAN(server)) - cifs_put_tcp_session(server, false); - return rc; } |