From patchwork Mon Jul 26 14:01:15 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [5/7] block: default to 0 minimal / optiomal I/O size Date: Mon, 26 Jul 2010 04:01:15 -0000 From: Kevin Wolf X-Patchwork-Id: 59918 Message-Id: <1280152877-29037-6-git-send-email-kwolf@redhat.com> 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 */