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authorEric Blake <eblake@redhat.com>2017-07-07 15:30:42 -0500
committerPaolo Bonzini <pbonzini@redhat.com>2017-07-14 12:04:41 +0200
commit37ec36f622d46b7d13421533efe686af2326771e (patch)
tree8f1225767da146401a431489b250e2c5a6e87e18
parent004a89fce9b5ec1b027bf4d104d83aa682db7b7a (diff)
nbd: Don't bother tracing an NBD_OPT_ABORT response failure
We really don't care if our spec-compliant reply to NBD_OPT_ABORT was received, so shave off some lines of code by not even tracing it. Signed-off-by: Eric Blake <eblake@redhat.com> Message-Id: <20170707203049.534-3-eblake@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
-rw-r--r--nbd/server.c15
-rw-r--r--nbd/trace-events1
2 files changed, 4 insertions, 12 deletions
diff --git a/nbd/server.c b/nbd/server.c
index 9b0c588146..e15385b777 100644
--- a/nbd/server.c
+++ b/nbd/server.c
@@ -376,7 +376,6 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
{
uint32_t flags;
bool fixedNewstyle = false;
- Error *local_err = NULL;
/* Client sends:
[ 0 .. 3] client flags
@@ -479,7 +478,9 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
if (ret < 0) {
return ret;
}
- /* Let the client keep trying, unless they asked to quit */
+ /* Let the client keep trying, unless they asked to
+ * quit. In this mode, we've already sent an error, so
+ * we can't ack the abort. */
if (option == NBD_OPT_ABORT) {
return 1;
}
@@ -498,15 +499,7 @@ static int nbd_negotiate_options(NBDClient *client, Error **errp)
/* NBD spec says we must try to reply before
* disconnecting, but that we must also tolerate
* guests that don't wait for our reply. */
- nbd_negotiate_send_rep(client->ioc, NBD_REP_ACK, option,
- &local_err);
-
- if (local_err != NULL) {
- const char *error = error_get_pretty(local_err);
- trace_nbd_opt_abort_reply_failed(error);
- error_free(local_err);
- }
-
+ nbd_negotiate_send_rep(client->ioc, NBD_REP_ACK, option, NULL);
return 1;
case NBD_OPT_EXPORT_NAME:
diff --git a/nbd/trace-events b/nbd/trace-events
index 4b233b8510..c6f898e0d4 100644
--- a/nbd/trace-events
+++ b/nbd/trace-events
@@ -40,7 +40,6 @@ nbd_negotiate_options_newstyle(void) "Client supports fixed newstyle handshake"
nbd_negotiate_options_no_zeroes(void) "Client supports no zeroes at handshake end"
nbd_negotiate_options_check_magic(uint64_t magic) "Checking opts magic 0x%" PRIx64
nbd_negotiate_options_check_option(uint32_t option) "Checking option 0x%" PRIx32
-nbd_opt_abort_reply_failed(const char *error) "Reply to NBD_OPT_ABORT request failed: %s"
nbd_negotiate_begin(void) "Beginning negotiation"
nbd_negotiate_old_style(uint64_t size, unsigned flags) "advertising size %" PRIu64 " and flags %x"
nbd_negotiate_new_style_size_flags(uint64_t size, unsigned flags) "advertising size %" PRIu64 " and flags %x"