diff options
Diffstat (limited to 'fs/cifs/connect.c')
| -rw-r--r-- | fs/cifs/connect.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index bdea4b3e8005..ccaa8bad336f 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -564,9 +564,11 @@ cifs_reconnect(struct TCP_Server_Info *server) spin_lock(&GlobalMid_Lock); list_for_each_safe(tmp, tmp2, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); + kref_get(&mid_entry->refcount); if (mid_entry->mid_state == MID_REQUEST_SUBMITTED) mid_entry->mid_state = MID_RETRY_NEEDED; list_move(&mid_entry->qhead, &retry_list); + mid_entry->mid_flags |= MID_DELETED; } spin_unlock(&GlobalMid_Lock); mutex_unlock(&server->srv_mutex); @@ -576,6 +578,7 @@ cifs_reconnect(struct TCP_Server_Info *server) mid_entry = list_entry(tmp, struct mid_q_entry, qhead); list_del_init(&mid_entry->qhead); mid_entry->callback(mid_entry); + cifs_mid_q_entry_release(mid_entry); } if (cifs_rdma_enabled(server)) { @@ -895,8 +898,10 @@ dequeue_mid(struct mid_q_entry *mid, bool malformed) if (mid->mid_flags & MID_DELETED) printk_once(KERN_WARNING "trying to dequeue a deleted mid\n"); - else + else { list_del_init(&mid->qhead); + mid->mid_flags |= MID_DELETED; + } spin_unlock(&GlobalMid_Lock); } @@ -966,8 +971,10 @@ static void clean_demultiplex_info(struct TCP_Server_Info *server) list_for_each_safe(tmp, tmp2, &server->pending_mid_q) { mid_entry = list_entry(tmp, struct mid_q_entry, qhead); cifs_dbg(FYI, "Clearing mid 0x%llx\n", mid_entry->mid); + kref_get(&mid_entry->refcount); mid_entry->mid_state = MID_SHUTDOWN; list_move(&mid_entry->qhead, &dispose_list); + mid_entry->mid_flags |= MID_DELETED; } spin_unlock(&GlobalMid_Lock); @@ -977,6 +984,7 @@ static void clean_demultiplex_info(struct TCP_Server_Info *server) cifs_dbg(FYI, "Callback mid 0x%llx\n", mid_entry->mid); list_del_init(&mid_entry->qhead); mid_entry->callback(mid_entry); + cifs_mid_q_entry_release(mid_entry); } /* 1/8th of sec is more than enough time for them to exit */ msleep(125); |