From patchwork Tue Nov 20 16:45:34 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [v2, 2/4] buffered_file: do not send more than s->bytes_xfer bytes per tick Date: Tue, 20 Nov 2012 06:45:34 -0000 From: Paolo Bonzini X-Patchwork-Id: 200401 Message-Id: <1353429936-29180-3-git-send-email-pbonzini@redhat.com> To: qemu-devel@nongnu.org Cc: quintela@redhat.com Sending more was possible if the buffer was large. Signed-off-by: Paolo Bonzini --- buffered_file.c | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/buffered_file.c b/buffered_file.c index 49e9089..edead5c 100644 --- a/buffered_file.c +++ b/buffered_file.c @@ -66,9 +66,9 @@ static ssize_t buffered_flush(QEMUFileBuffered *s) DPRINTF("flushing %zu byte(s) of data\n", s->buffer_size); while (s->bytes_xfer < s->xfer_limit && offset < s->buffer_size) { - + size_t to_send = MIN(s->buffer_size - offset, s->xfer_limit - s->bytes_xfer); ret = migrate_fd_put_buffer(s->migration_state, s->buffer + offset, - s->buffer_size - offset); + to_send); if (ret == -EAGAIN) { DPRINTF("backend not ready, freezing\n"); ret = 0;