Commit 1981ebaa authored Aug 29, 2019 by Steve French

smb3: add some more descriptive messages about share when mounting cache=ro



Add some additional logging so the user can see if the share they
mounted with cache=ro is considered read only by the server

CIFS: Attempting to mount //localhost/test
CIFS VFS: mounting share with read only caching. Ensure that the share will not be modified while in use.
CIFS VFS: read only mount of RW share

CIFS: Attempting to mount //localhost/test-ro
CIFS VFS: mounting share with read only caching. Ensure that the share will not be modified while in use.
CIFS VFS: mounted to read only share

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>

parent 83bbfa70

fs/cifs/connect.c

+9 −1

Original line number	Diff line number	Diff line
		@@ -4197,8 +4197,16 @@ static int mount_get_conns(struct smb_vol vol, struct cifs_sb_info cifs_sb,
		tcon->unix_ext = 0; /* server does not support them */

		/* do not care if a following call succeed - informational */
		if (!tcon->pipe && server->ops->qfs_tcon)
		if (!tcon->pipe && server->ops->qfs_tcon) {
		server->ops->qfs_tcon(*xid, tcon);
		if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_RO_CACHE) {
		if (tcon->fsDevInfo.DeviceCharacteristics &
		FILE_READ_ONLY_DEVICE)
		cifs_dbg(VFS, "mounted to read only share\n");
		else
		cifs_dbg(VFS, "read only mount of RW share\n");
		}
		}

		cifs_sb->wsize = server->ops->negotiate_wsize(tcon, vol);
		cifs_sb->rsize = server->ops->negotiate_rsize(tcon, vol);

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