diff options
| author | Aurelien Aptel <aaptel@suse.com> | 2021-03-04 17:42:21 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-17 17:06:20 +0100 |
| commit | 3370a84d781ca5227682bd6e747aaefb6dcc8e21 (patch) | |
| tree | 37113a9e568aa68f08ce8295ca6a7a58d903de2e /fs | |
| parent | 83ff4f644de4c2a38ff3a7d8eea1c0d5dc5e06d5 (diff) | |
cifs: fix credit accounting for extra channel
commit a249cc8bc2e2fed680047d326eb9a50756724198 upstream.
With multichannel, operations like the queries
from "ls -lR" can cause all credits to be used and
errors to be returned since max_credits was not
being set correctly on the secondary channels and
thus the client was requesting 0 credits incorrectly
in some cases (which can lead to not having
enough credits to perform any operation on that
channel).
Signed-off-by: Aurelien Aptel <aaptel@suse.com>
CC: <stable@vger.kernel.org> # v5.8+
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/cifs/connect.c | 10 | ||||
| -rw-r--r-- | fs/cifs/sess.c | 1 |
2 files changed, 6 insertions, 5 deletions
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index ad3ecda1314d..fa359f473e3d 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -2629,6 +2629,11 @@ smbd_connected: tcp_ses->min_offload = volume_info->min_offload; tcp_ses->tcpStatus = CifsNeedNegotiate; + if ((volume_info->max_credits < 20) || (volume_info->max_credits > 60000)) + tcp_ses->max_credits = SMB2_MAX_CREDITS_AVAILABLE; + else + tcp_ses->max_credits = volume_info->max_credits; + tcp_ses->nr_targets = 1; tcp_ses->ignore_signature = volume_info->ignore_signature; /* thread spawned, put it on the list */ @@ -4077,11 +4082,6 @@ static int mount_get_conns(struct smb_vol *vol, struct cifs_sb_info *cifs_sb, *nserver = server; - if ((vol->max_credits < 20) || (vol->max_credits > 60000)) - server->max_credits = SMB2_MAX_CREDITS_AVAILABLE; - else - server->max_credits = vol->max_credits; - /* get a reference to a SMB session */ ses = cifs_get_smb_ses(server, vol); if (IS_ERR(ses)) { diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c index de564368a887..c2fe85ca2ded 100644 --- a/fs/cifs/sess.c +++ b/fs/cifs/sess.c @@ -224,6 +224,7 @@ cifs_ses_add_channel(struct cifs_ses *ses, struct cifs_server_iface *iface) vol.noautotune = ses->server->noautotune; vol.sockopt_tcp_nodelay = ses->server->tcp_nodelay; vol.echo_interval = ses->server->echo_interval / HZ; + vol.max_credits = ses->server->max_credits; /* * This will be used for encoding/decoding user/domain/pw |