6.1-stable review patch. If anyone has any objections, please let me know.
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From: Steve French stfrench@microsoft.com
commit b365b9d404b7376c60c91cd079218bfef11b7822 upstream.
When mounting the same share twice, once with the "linux" mount parameter (or equivalently "posix") and then once without (or e.g. with "nolinux"), we were incorrectly reusing the same tree connection for both mounts. This meant that the first mount of the share on the client, would cause subsequent mounts of that same share on the same client to ignore that mount parm ("linux" vs. "nolinux") and incorrectly reuse the same tcon.
Cc: stable@vger.kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/client/connect.c | 2 ++ 1 file changed, 2 insertions(+)
--- a/fs/smb/client/connect.c +++ b/fs/smb/client/connect.c @@ -2417,6 +2417,8 @@ static int match_tcon(struct cifs_tcon * return 0; if (tcon->nodelete != ctx->nodelete) return 0; + if (tcon->posix_extensions != ctx->linux_ext) + return 0; return 1; }