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From 1ca9e169f34ef1c548b45a05f460f69e97ae0201 Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Fri, 22 Mar 2019 03:22:38 +0100
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Subject: [PATCH 071/163] nbd/server: Advertise all contexts in response to
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bare LIST
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RH-Author: John Snow <jsnow@redhat.com>
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Message-id: <20190322032241.8111-26-jsnow@redhat.com>
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Patchwork-id: 85109
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O-Subject: [RHEL-7.7 qemu-kvm-rhev PATCH 25/28] nbd/server: Advertise all contexts in response to bare LIST
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Bugzilla: 1691563
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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From: Eric Blake <eblake@redhat.com>
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The NBD spec, and even our code comment, says that if the client
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asks for NBD_OPT_LIST_META_CONTEXT with 0 queries, then we should
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reply with (a possibly-compressed representation of) ALL contexts
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that we are willing to let them try. But commit 3d068aff forgot
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to advertise qemu:dirty-bitmap:FOO.
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Signed-off-by: Eric Blake <eblake@redhat.com>
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Message-Id: <20181130023232.3079982-2-eblake@redhat.com>
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Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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(cherry picked from commit e31d802479df9daff1994a7ed1e36bbc5bb19d03)
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Signed-off-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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nbd/server.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/nbd/server.c b/nbd/server.c
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index e8fd6b4..abf03e8 100644
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--- a/nbd/server.c
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+++ b/nbd/server.c
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@@ -978,6 +978,7 @@ static int nbd_negotiate_meta_queries(NBDClient *client,
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if (client->opt == NBD_OPT_LIST_META_CONTEXT && !nb_queries) {
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/* enable all known contexts */
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meta->base_allocation = true;
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+ meta->bitmap = !!meta->exp->export_bitmap;
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} else {
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for (i = 0; i < nb_queries; ++i) {
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ret = nbd_negotiate_meta_query(client, meta, errp);
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--
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1.8.3.1
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