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authorSteve French <stfrench@microsoft.com>2018-04-04 14:08:52 -0500
committerSteve French <stfrench@microsoft.com>2018-04-11 16:44:58 -0500
commitc318e6c26cbe91bfcd1e9bca8840de2fb57aef4f (patch)
tree0ca36093d0afd26613630e4897f1bccf9a1b238a /fs/cifs
parentc0953f2ed510c31a375193e9dbca9774e77fb4b7 (diff)
downloadlinux-c318e6c26cbe91bfcd1e9bca8840de2fb57aef4f.tar.bz2
SMB3: Log at least once if tree connect fails during reconnect
Adding an extra debug message to show if a tree connect failure during reconnect (and made it a log once so it doesn't spam the logs). Saw a case recently where tree connect repeatedly returned access denied on reconnect and it wasn't as easy to spot as it should have been. Signed-off-by: Steve French <smfrench@gmail.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/cifssmb.c4
-rw-r--r--fs/cifs/smb2pdu.c5
2 files changed, 7 insertions, 2 deletions
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 59c09a596c0a..abdc93d4fee8 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -206,8 +206,10 @@ cifs_reconnect_tcon(struct cifs_tcon *tcon, int smb_command)
mutex_unlock(&ses->session_mutex);
cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
- if (rc)
+ if (rc) {
+ printk_once(KERN_WARNING "reconnect tcon failed rc = %d\n", rc);
goto out;
+ }
atomic_inc(&tconInfoReconnectCount);
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index e5ac474d5d87..6c2910e6c984 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -268,8 +268,11 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon)
mutex_unlock(&tcon->ses->session_mutex);
cifs_dbg(FYI, "reconnect tcon rc = %d\n", rc);
- if (rc)
+ if (rc) {
+ /* If sess reconnected but tcon didn't, something strange ... */
+ printk_once(KERN_WARNING "reconnect tcon failed rc = %d\n", rc);
goto out;
+ }
if (smb2_command != SMB2_INTERNAL_CMD)
queue_delayed_work(cifsiod_wq, &server->reconnect, 0);