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cifs: handle "nolease" option for vers=1.0

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The "nolease" mount option is only supported for SMB2+ mounts.
Fail with appropriate error message if vers=1.0 option is passed.

Signed-off-by: Kenneth D'souza <kdsouza@redhat.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
This commit is contained in:
Kenneth D'souza
2020-05-18 13:01:34 +05:30
committed by Steve French
parent 3d77e6a880
commit 8fd6e1d694
1 changed files with 10 additions and 1 deletions
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11
fs/cifs/connect.c
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@@ -3580,6 +3580,16 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
cifs_dbg(VFS, "cache=singleclient requested on mount but NO_CACHING flag set on share\n");
}
if (volume_info->no_lease) {
if (ses->server->vals->protocol_id == 0) {
cifs_dbg(VFS,
"SMB2 or later required for nolease option\n");
rc = -EOPNOTSUPP;
goto out_fail;
} else
tcon->no_lease = volume_info->no_lease;
}
/*
* We can have only one retry value for a connection to a share so for
* resources mounted more than once to the same server share the last
@@ -3589,7 +3599,6 @@ cifs_get_tcon(struct cifs_ses *ses, struct smb_vol *volume_info)
tcon->nocase = volume_info->nocase;
tcon->nohandlecache = volume_info->nohandlecache;
tcon->local_lease = volume_info->local_lease;
tcon->no_lease = volume_info->no_lease;
INIT_LIST_HEAD(&tcon->pending_opens);
spin_lock(&cifs_tcp_ses_lock);