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From b84814bde02585f990a32f2ebfbdda1de1fce5a8 Mon Sep 17 00:00:00 2001
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From: John Snow <jsnow@redhat.com>
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Date: Wed, 18 Jul 2018 22:55:00 +0200
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Subject: [PATCH 242/268] nbd/server: fix trace
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RH-Author: John Snow <jsnow@redhat.com>
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Message-id: <20180718225511.14878-25-jsnow@redhat.com>
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Patchwork-id: 81401
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O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 24/35] nbd/server: fix trace
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Bugzilla: 1207657
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RH-Acked-by: Eric Blake <eblake@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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Return code = 1 doesn't mean that we parsed base:allocation. Use
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correct traces in both -parsed and -skipped cases.
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Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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Message-Id: <20180609151758.17343-2-vsementsov@virtuozzo.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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[eblake: comment tweaks]
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Signed-off-by: Eric Blake <eblake@redhat.com>
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(cherry picked from commit dbb8b396bb46388cee92e9094c563297d04c43ed)
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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 | 14 ++++++++++----
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1 file changed, 10 insertions(+), 4 deletions(-)
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diff --git a/nbd/server.c b/nbd/server.c
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index 493a926..942c016 100644
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--- a/nbd/server.c
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+++ b/nbd/server.c
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@@ -736,12 +736,16 @@ static int nbd_negotiate_send_meta_context(NBDClient *client,
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/* nbd_meta_base_query
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*
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- * Handle query to 'base' namespace. For now, only base:allocation context is
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- * available in it. 'len' is the amount of text remaining to be read from
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+ * Handle queries to 'base' namespace. For now, only the base:allocation
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+ * context is available. 'len' is the amount of text remaining to be read from
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* the current name, after the 'base:' portion has been stripped.
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*
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* Return -errno on I/O error, 0 if option was completely handled by
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- * sending a reply about inconsistent lengths, or 1 on success. */
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+ * sending a reply about inconsistent lengths, or 1 on success.
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+ *
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+ * Note: return code = 1 doesn't mean that we've parsed the "base:allocation"
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+ * namespace. It only means that there are no errors.
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+ */
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static int nbd_meta_base_query(NBDClient *client, NBDExportMetaContexts *meta,
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uint32_t len, Error **errp)
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{
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@@ -768,10 +772,12 @@ static int nbd_meta_base_query(NBDClient *client, NBDExportMetaContexts *meta,
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}
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if (strncmp(query, "allocation", alen) == 0) {
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+ trace_nbd_negotiate_meta_query_parse("base:allocation");
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meta->base_allocation = true;
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+ } else {
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+ trace_nbd_negotiate_meta_query_skip("not base:allocation");
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}
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- trace_nbd_negotiate_meta_query_parse("base:allocation");
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return 1;
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}
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--
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1.8.3.1
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