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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>
This commit is contained in:
Eric Blake 2017-07-07 15:30:42 -05:00 committed by Paolo Bonzini
parent 004a89fce9
commit 37ec36f622
2 changed files with 4 additions and 12 deletions
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15
nbd/server.c
View File

@ -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:

1
nbd/trace-events
View File

@ -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"