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authorShyam Prasad N <sprasad@microsoft.com>2023-10-13 12:25:30 +0300
committerSteve French <stfrench@microsoft.com>2023-11-09 19:25:14 +0300
commit0c51cc6f2cb0108e7d49805f6e089cd85caab279 (patch)
treeec592e46424ae9d67d938bcd70093e73489e3336 /fs/smb/client/cifs_debug.c
parent1bc081b67a79b6e75fae686e98048cea1038ae31 (diff)
downloadlinux-0c51cc6f2cb0108e7d49805f6e089cd85caab279.tar.xz
cifs: handle cases where a channel is closed
So far, SMB multichannel could only scale up, but not scale down the number of channels. In this series of patch, we now allow the client to deal with the case of multichannel disabled on the server when the share is mounted. With that change, we now need the ability to scale down the channels. This change allows the client to deal with cases of missing channels more gracefully. Signed-off-by: Shyam Prasad N <sprasad@microsoft.com> Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/client/cifs_debug.c')
-rw-r--r--fs/smb/client/cifs_debug.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c
index 0d09bc3ea283..772d4226957f 100644
--- a/fs/smb/client/cifs_debug.c
+++ b/fs/smb/client/cifs_debug.c
@@ -136,6 +136,11 @@ cifs_dump_channel(struct seq_file *m, int i, struct cifs_chan *chan)
{
struct TCP_Server_Info *server = chan->server;
+ if (!server) {
+ seq_printf(m, "\n\n\t\tChannel: %d DISABLED", i+1);
+ return;
+ }
+
seq_printf(m, "\n\n\t\tChannel: %d ConnectionId: 0x%llx"
"\n\t\tNumber of credits: %d,%d,%d Dialect 0x%x"
"\n\t\tTCP status: %d Instance: %d"