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block: add .bdrv_reopen_prepare() stub for iscsi 

To suppport reopen(), the .bdrv_reopen_prepare() stub must exist.
iSCSI does not have anything that needs to be done to support reopen,
so we can just implement the _prepare() stub.

Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jeff Cody 2014-01-14 13:10:24 -05:00 committed by Paolo Bonzini
parent 49fb65c7f9
commit dc6afb99b3
1 changed files with 9 additions and 0 deletions
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9
block/iscsi.c
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@ -1326,6 +1326,14 @@ static void iscsi_close(BlockDriverState *bs)
memset(iscsilun, 0, sizeof(IscsiLun));
}
/* We have nothing to do for iSCSI reopen, stub just returns
* success */
static int iscsi_reopen_prepare(BDRVReopenState *state,
BlockReopenQueue *queue, Error **errp)
{
return 0;
}
static int iscsi_truncate(BlockDriverState *bs, int64_t offset)
{
IscsiLun *iscsilun = bs->opaque;
@ -1434,6 +1442,7 @@ static BlockDriver bdrv_iscsi = {
.bdrv_close = iscsi_close,
.bdrv_create = iscsi_create,
.create_options = iscsi_create_options,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_getlength = iscsi_getlength,
.bdrv_get_info = iscsi_get_info,