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block/iscsi: add .bdrv_get_info

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Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Peter Lieven 2013-10-24 12:06:55 +02:00 committed by Kevin Wolf
parent 4ce786914b
commit 186d4f2b1d
1 changed files with 9 additions and 0 deletions
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9
block/iscsi.c
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@ -1506,6 +1506,14 @@ out:
return ret; return ret;
} }
static int iscsi_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
{
IscsiLun *iscsilun = bs->opaque;
bdi->unallocated_blocks_are_zero = !!iscsilun->lbprz;
bdi->can_write_zeroes_with_unmap = iscsilun->lbprz && iscsilun->lbp.lbpws;
return 0;
}
static QEMUOptionParameter iscsi_create_options[] = { static QEMUOptionParameter iscsi_create_options[] = {
{ {
.name = BLOCK_OPT_SIZE, .name = BLOCK_OPT_SIZE,
@ -1527,6 +1535,7 @@ static BlockDriver bdrv_iscsi = {
.create_options = iscsi_create_options, .create_options = iscsi_create_options,
.bdrv_getlength = iscsi_getlength, .bdrv_getlength = iscsi_getlength,
.bdrv_get_info = iscsi_get_info,
.bdrv_truncate = iscsi_truncate, .bdrv_truncate = iscsi_truncate,
#if defined(LIBISCSI_FEATURE_IOVECTOR) #if defined(LIBISCSI_FEATURE_IOVECTOR)