From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=49943 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1OdOFM-0002OX-O8 for qemu-devel@nongnu.org; Mon, 26 Jul 2010 10:01:45 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.69) (envelope-from ) id 1OdOFB-0005Qi-BJ for qemu-devel@nongnu.org; Mon, 26 Jul 2010 10:01:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:59641) by eggs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1OdOFB-0005Qd-4o for qemu-devel@nongnu.org; Mon, 26 Jul 2010 10:01:25 -0400 From: Kevin Wolf Date: Mon, 26 Jul 2010 16:01:15 +0200 Message-Id: <1280152877-29037-6-git-send-email-kwolf@redhat.com> In-Reply-To: <1280152877-29037-1-git-send-email-kwolf@redhat.com> References: <1280152877-29037-1-git-send-email-kwolf@redhat.com> Subject: [Qemu-devel] [PATCH 5/7] block: default to 0 minimal / optiomal I/O size List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: anthony@codemonkey.ws Cc: kwolf@redhat.com, qemu-devel@nongnu.org From: Christoph Hellwig Currently we set them to 512 bytes unless manually specified. Unforuntaly some brain-dead partitioning tools create unaligned partitions if they get low enough optiomal I/O size values, so don't report any at all unless explicitly set. Signed-off-by: Christoph Hellwig Signed-off-by: Kevin Wolf --- block_int.h | 4 ++-- 1 files changed, 2 insertions(+), 2 deletions(-) diff --git a/block_int.h b/block_int.h index 96ff4cf..f075a8c 100644 --- a/block_int.h +++ b/block_int.h @@ -243,7 +243,7 @@ static inline unsigned int get_physical_block_exp(BlockConf *conf) _conf.logical_block_size, 512), \ DEFINE_PROP_UINT16("physical_block_size", _state, \ _conf.physical_block_size, 512), \ - DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 512), \ - DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 512) + DEFINE_PROP_UINT16("min_io_size", _state, _conf.min_io_size, 0), \ + DEFINE_PROP_UINT32("opt_io_size", _state, _conf.opt_io_size, 0) #endif /* BLOCK_INT_H */ -- 1.7.1.1