cifs: fix mounts to subdirectories of target

The "prefixpath" mount option needs to be ignored
which was missed in the recent conversion to the
new mount API (prefixpath would be set by the mount
helper if mounting a subdirectory of the root of a
share e.g. //server/share/subdir)

Fixes: 24e0a1eff9e2 ("cifs: switch to new mount api")
Suggested-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>

diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index 62818b142e2e806d9d7196563c07c664d9465cf6..818c413db82d26bcb433cb6512a91245cde06bc9 100644 (file)
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -178,6 +178,7 @@ const struct fs_parameter_spec smb3_fs_parameters[] = {
        fsparam_flag_no("auto", Opt_ignore),
        fsparam_string("cred", Opt_ignore),
        fsparam_string("credentials", Opt_ignore),
+       fsparam_string("prefixpath", Opt_ignore),
        {}
 };