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[Qemu-devel] [PATCH 03/14] block: fix physical_block_size calculation
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH 03/14] block: fix physical_block_size calculation |
Date: |
Tue, 22 Jun 2010 16:09:22 +0200 |
From: Christoph Hellwig <address@hidden>
Both SCSI and virtio expect the physical block size relative to the
logical block size. So get the factor first before calculating the
log2.
Reported-by: Mike Cao <address@hidden>
Signed-off-by: Christoph Hellwig <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block_int.h | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/block_int.h b/block_int.h
index e3bfd19..b64a009 100644
--- a/block_int.h
+++ b/block_int.h
@@ -224,7 +224,9 @@ static inline unsigned int get_physical_block_exp(BlockConf
*conf)
{
unsigned int exp = 0, size;
- for (size = conf->physical_block_size; size > 512; size >>= 1) {
+ for (size = conf->physical_block_size;
+ size > conf->logical_block_size;
+ size >>= 1) {
exp++;
}
--
1.6.6.1
- [Qemu-devel] [PULL 00/14] Block patches, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 02/14] scsi-bus: Add MAINTENANCE_IN and MAINTENANCE_OUT SCSIRequest xfer and mode assignments, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 03/14] block: fix physical_block_size calculation,
Kevin Wolf <=
- [Qemu-devel] [PATCH 01/14] scsi-bus: Add PERSISTENT_RESERVE_OUT SCSIRequest->cmd.mode setup, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 05/14] block: Add bdrv_(p)write_sync, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 04/14] monitor: allow device to be ejected if no disk is inserted, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 07/14] qcow: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 09/14] vmdk: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 06/14] cow: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 11/14] qemu-io: check registered fds in command_loop(), Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 12/14] virtio-blk: fix the list operation in virtio_blk_load()., Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 08/14] qcow2: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/06/22
- [Qemu-devel] [PATCH 13/14] qcow2: Fix qemu-img check segfault on corrupted images, Kevin Wolf, 2010/06/22