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nbd: don't change socket block during negotiate 

The caller might handle non-blocking using coroutine. Leave the choice
to the caller to use a blocking or non-blocking negotiate.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This commit is contained in:
Marc-André Lureau 2013-12-01 22:23:42 +01:00 committed by Gerd Hoffmann
parent 2302c1cafb
commit e53a18e488
2 changed files with 1 additions and 2 deletions
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1
block/nbd-client.c
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@ -348,6 +348,7 @@ int nbd_client_session_init(NbdClientSession *client,
int ret;
/* NBD handshake */
qemu_set_block(sock);
ret = nbd_receive_negotiate(sock, client->export_name,
&client->nbdflags, &client->size,
&client->blocksize);

2
nbd.c
View File

@ -443,7 +443,6 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
TRACE("Receiving negotiation.");
qemu_set_block(csock);
rc = -EINVAL;
if (read_sync(csock, buf, 8) != 8) {
@ -558,7 +557,6 @@ int nbd_receive_negotiate(int csock, const char *name, uint32_t *flags,
rc = 0;
fail:
qemu_set_nonblock(csock);
return rc;
}