From 1981ebaabd88a9b3e550b6163c570a498c32a1f5 Mon Sep 17 00:00:00 2001 From: Steve French Date: Thu, 29 Aug 2019 22:33:38 -0500 Subject: 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 Reviewed-by: Ronnie Sahlberg --- fs/cifs/connect.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'fs/cifs/connect.c') diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 4e622953dd5a..072c01f4e9c1 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -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); -- cgit v1.2.3-59-g8ed1b