Commit 4306acd0 authored by Jan Beulich's avatar Jan Beulich Committed by Sasha Levin

xenbus: don't look up transaction IDs for ordinary writes

[ Upstream commit 9a035a40 ]

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: 0beef634 ("xenbus: don't BUG() on user mode induced condition")
Reported-by: default avatarRichard Schütz <rschuetz@uni-koblenz.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarJan Beulich <jbeulich@suse.com>
Tested-by: default avatarRichard Schütz <rschuetz@uni-koblenz.de>
Signed-off-by: default avatarDavid Vrabel <david.vrabel@citrix.com>
Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
parent 189f6d32
...@@ -316,7 +316,7 @@ static int xenbus_write_transaction(unsigned msg_type, ...@@ -316,7 +316,7 @@ static int xenbus_write_transaction(unsigned msg_type,
rc = -ENOMEM; rc = -ENOMEM;
goto out; goto out;
} }
} else { } else if (msg_type == XS_TRANSACTION_END) {
list_for_each_entry(trans, &u->transactions, list) list_for_each_entry(trans, &u->transactions, list)
if (trans->handle.id == u->u.msg.tx_id) if (trans->handle.id == u->u.msg.tx_id)
break; break;
......
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