From bde54c08b4854aceee3dee25121a2b835cb81166 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 20 Nov 2012 12:48:19 +0100 Subject: [PATCH] buffered_file: do not send more than s->bytes_xfer bytes per tick Sending more was possible if the buffer was large. Cc: qemu-stable@nongnu.org Signed-off-by: Paolo Bonzini Signed-off-by: Juan Quintela --- buffered_file.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/buffered_file.c b/buffered_file.c index 27627a1b71..1de47e04a8 100644 --- a/buffered_file.c +++ b/buffered_file.c @@ -65,9 +65,9 @@ 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;