Il 13/09/2012 17:49, Jeff Cody ha scritto:
> +
> + /*
> + * If we didn't have BDRV_O_NOCACHE set before, we may not have allocated
> + * aligned_buf
> + */
> + ret = raw_allocate_aligned_buf(&raw_s->aligned_buf,
> + &raw_s->aligned_buf_size, state->flags);
Aligned_buf is unused, except for checking if it exists here:
if (s->aligned_buf) {
if (!qiov_is_aligned(bs, qiov)) {
type |= QEMU_AIO_MISALIGNED;
#ifdef CONFIG_LINUX_AIO
} else if (s->use_aio) {
return laio_submit(bs, s->aio_ctx, s->fd, sector_num, qiov,
nb_sectors, cb, opaque, type);
#endif
}
}
You can instead check BDRV_O_NOCACHE and kill aligned_buf completely.
Paolo
