[Xen-devel] [PATCH] xenbus: don't look up transaction IDs for ordinary writes

["Jan Beulich" <JBeulich@xxxxxxxx>]

This should really only be done for XS_TRANSACTION_END messages, or
else at least some of the xenstore-* tools don't work anymore.

Fixes: 0beef634b8 ("xenbus: don't BUG() on user mode induced condition")
Reported-by: Richard Schütz <rschuetz@xxxxxxxxxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Tested-by: Richard Schütz <rschuetz@xxxxxxxxxxxxxx>
---
 drivers/xen/xenbus/xenbus_dev_frontend.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- 4.8-rc2/drivers/xen/xenbus/xenbus_dev_frontend.c
+++ 
4.8-rc2-xen-xenbus-dev-write-oridinary/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -316,7 +316,7 @@ static int xenbus_write_transaction(unsi
                        rc = -ENOMEM;
                        goto out;
                }
-       } else {
+       } else if (msg_type == XS_TRANSACTION_END) {
                list_for_each_entry(trans, &u->transactions, list)
                        if (trans->handle.id == u->u.msg.tx_id)
                                break;



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
https://lists.xen.org/xen-devel