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CIFS: Propagate min offload along with other parameters from primary to secondary channels.

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In a multichannel setup, it was observed that a few fields were not being
copied over to the secondary channels, which impacted performance in cases
where these options were relevant but not properly synchronized. To address
this, this patch introduces copying the following parameters from the
primary channel to the secondary channels:

- min_offload
- compression.requested
- dfs_conn
- ignore_signature
- leaf_fullpath
- noblockcnt
- retrans
- sign

By copying these parameters, we ensure consistency across channels and
prevent performance degradation due to missing or outdated settings.

Cc: stable@vger.kernel.org
Signed-off-by: Aman <aman1@microsoft.com>
Reviewed-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Aman 2025-03-06 17:46:43 +00:00 committed by Steve French
parent b26df4f57b
commit 1821e90be0
2 changed files with 8 additions and 0 deletions
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1
fs/smb/client/connect.c
View File

@ -1676,6 +1676,7 @@ cifs_get_tcp_session(struct smb3_fs_context *ctx,
/* Grab netns reference for this server. */
cifs_set_net_ns(tcp_ses, get_net(current->nsproxy->net_ns));
tcp_ses->sign = ctx->sign;
tcp_ses->conn_id = atomic_inc_return(&tcpSesNextId);
tcp_ses->noblockcnt = ctx->rootfs;
tcp_ses->noblocksnd = ctx->noblocksnd || ctx->rootfs;

7
fs/smb/client/sess.c
View File

@ -522,6 +522,13 @@ cifs_ses_add_channel(struct cifs_ses *ses,
ctx->sockopt_tcp_nodelay = ses->server->tcp_nodelay;
ctx->echo_interval = ses->server->echo_interval / HZ;
ctx->max_credits = ses->server->max_credits;
ctx->min_offload = ses->server->min_offload;
ctx->compress = ses->server->compression.requested;
ctx->dfs_conn = ses->server->dfs_conn;
ctx->ignore_signature = ses->server->ignore_signature;
ctx->leaf_fullpath = ses->server->leaf_fullpath;
ctx->rootfs = ses->server->noblockcnt;
ctx->retrans = ses->server->retrans;
/*
* This will be used for encoding/decoding user/domain/pw