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qemu-nbd: Permit --shared=0 for unlimited clients

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This gives us better feature parity with QMP nbd-server-start, where
max-connections defaults to 0 for unlimited.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210209152759.209074-3-eblake@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This commit is contained in:
Eric Blake
2021-02-09 09:27:59 -06:00
parent 582d4210eb
commit 3dcf56e625
2 changed files with 5 additions and 5 deletions
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6
qemu-nbd.c
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@ -328,7 +328,7 @@ static void *nbd_client_thread(void *arg)
static int nbd_can_accept(void)
{
return state == RUNNING && nb_fds < shared;
return state == RUNNING && (shared == 0 || nb_fds < shared);
}
static void nbd_update_server_watch(void);
@ -707,7 +707,7 @@ int main(int argc, char **argv)
break;
case 'e':
if (qemu_strtoi(optarg, NULL, 0, &shared) < 0 ||
shared < 1) {
shared < 0) {
error_report("Invalid shared device number '%s'", optarg);
exit(EXIT_FAILURE);
}
@ -966,7 +966,7 @@ int main(int argc, char **argv)
if (socket_activation == 0) {
int backlog;
if (persistent) {
if (persistent || shared == 0) {
backlog = SOMAXCONN;
} else {
backlog = MIN(shared, SOMAXCONN);