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[Qemu-devel] [PATCH 16/55] block: reinitialize across bdrv_close()/bdrv_
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [PATCH 16/55] block: reinitialize across bdrv_close()/bdrv_open() |
Date: |
Mon, 31 Oct 2011 14:29:51 +0100 |
From: Stefan Hajnoczi <address@hidden>
Several BlockDriverState fields are not being reinitialized across
bdrv_close()/bdrv_open(). Make sure they are reset to their default
values.
Signed-off-by: Stefan Hajnoczi <address@hidden>
Signed-off-by: Kevin Wolf <address@hidden>
---
block.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/block.c b/block.c
index cb37086..96f3c3f 100644
--- a/block.c
+++ b/block.c
@@ -472,10 +472,13 @@ static int bdrv_open_common(BlockDriverState *bs, const
char *filename,
bs->total_sectors = 0;
bs->encrypted = 0;
bs->valid_key = 0;
+ bs->sg = 0;
bs->open_flags = flags;
+ bs->growable = 0;
bs->buffer_alignment = 512;
pstrcpy(bs->filename, sizeof(bs->filename), filename);
+ bs->backing_file[0] = '\0';
if (use_bdrv_whitelist && !bdrv_is_whitelisted(drv)) {
return -ENOTSUP;
@@ -484,8 +487,7 @@ static int bdrv_open_common(BlockDriverState *bs, const
char *filename,
bs->drv = drv;
bs->opaque = g_malloc0(drv->instance_size);
- if (flags & BDRV_O_CACHE_WB)
- bs->enable_write_cache = 1;
+ bs->enable_write_cache = !!(flags & BDRV_O_CACHE_WB);
/*
* Clear flags that are internal to the block layer before opening the
--
1.7.6.4
- [Qemu-devel] [PATCH 07/55] qcow: Fix bdrv_write_compressed error handling, (continued)
- [Qemu-devel] [PATCH 07/55] qcow: Fix bdrv_write_compressed error handling, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 09/55] vmdk: Fix use of uninitialised value, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 08/55] ide: Fix off-by-one error in array index check, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 12/55] Documentation: Describe NBD URL syntax, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 13/55] block: fix qcow2_co_flush deadlock, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 10/55] vmdk: Improve error handling, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 11/55] vmdk: Fix possible segfaults, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 14/55] qemu-io: delete bs instead of leaking it, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 15/55] block: set bs->read_only before .bdrv_open(), Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 17/55] Documentation: Add syntax for using sheepdog devices, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 16/55] block: reinitialize across bdrv_close()/bdrv_open(),
Kevin Wolf <=
- [Qemu-devel] [PATCH 18/55] scsi: pass correct sense code for ENOMEDIUM, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 35/55] scsi: allow arbitrary LUNs, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 33/55] scsi: remove devs array from SCSIBus, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 38/55] scsi-disk: fix retrying a flush, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 37/55] scsi-disk: fail READ CAPACITY if LBA != 0 but PMI == 0, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 45/55] scsi-disk: remove cluster_size, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 44/55] scsi-disk: do not duplicate BlockDriverState member, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 46/55] scsi-disk: small clean up to INQUIRY, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 47/55] scsi: move max_lba to SCSIDevice, Kevin Wolf, 2011/10/31
- [Qemu-devel] [PATCH 50/55] scsi: pass cdb to alloc_req, Kevin Wolf, 2011/10/31