[Top][All Lists]
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [PATCH 6/8] block: Add SG_IO device check in refresh_total_
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH 6/8] block: Add SG_IO device check in refresh_total_sectors() |
Date: |
Thu, 20 May 2010 15:10:41 +0200 |
From: Nicholas Bellinger <address@hidden>
This patch adds a special case check for scsi-generic devices in
refresh_total_sectors() to skip the subsequent BlockDriver->bdrv_getlength()
that will be returning -ESPIPE from block/raw-posic.c:raw_getlength() for
BlockDriverState->sg=1 devices.
Signed-off-by: Nicholas A. Bellinger <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/block.c b/block.c
index 6a95768..0b0966c 100644
--- a/block.c
+++ b/block.c
@@ -361,6 +361,10 @@ static int refresh_total_sectors(BlockDriverState *bs,
int64_t hint)
{
BlockDriver *drv = bs->drv;
+ /* Do not attempt drv->bdrv_getlength() on scsi-generic devices */
+ if (bs->sg)
+ return 0;
+
/* query actual device if possible, otherwise just trust the hint */
if (drv->bdrv_getlength) {
int64_t length = drv->bdrv_getlength(bs);
--
1.6.6.1
- [Qemu-devel] [PULL 0/8] Block patches, Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 2/8] virtio-blk: Avoid zeroing every request structure, Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 4/8] block: fix sector comparism in multiwrite_req_compare, Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 3/8] virtio-blk: fix barrier support, Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 1/8] block: fix aio_flush segfaults for read-only protocols (e.g. curl), Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 5/8] block: Make find_image_format() return 'raw' BlockDriver for SG_IO devices, Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 6/8] block: Add SG_IO device check in refresh_total_sectors(),
Kevin Wolf <=
- [Qemu-devel] [PATCH 8/8] vvfat: More build fixes with DEBUG, Kevin Wolf, 2010/05/20
- [Qemu-devel] [PATCH 7/8] vvfat: Fix compilation with DEBUG defined, Kevin Wolf, 2010/05/20