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From 8edbab3c2116944b96ba6bcbd36e8c2c5236cf5f Mon Sep 17 00:00:00 2001
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Message-Id: <8edbab3c2116944b96ba6bcbd36e8c2c5236cf5f.1389014116.git.minovotn@redhat.com>
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In-Reply-To: <c8cc35838d42aa286242772d97e3a9be7bb786ba.1389014116.git.minovotn@redhat.com>
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References: <c8cc35838d42aa286242772d97e3a9be7bb786ba.1389014116.git.minovotn@redhat.com>
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Mon, 9 Dec 2013 14:08:59 +0100
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Subject: [PATCH 11/50] block/iscsi: add .bdrv_get_info
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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Message-id: <1386598178-11845-14-git-send-email-pbonzini@redhat.com>
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Patchwork-id: 56048
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O-Subject: [RHEL 7.0 qemu-kvm PATCH 13/52] block/iscsi: add .bdrv_get_info
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Bugzilla: 1007815
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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From: Peter Lieven <pl@kamp.de>
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Signed-off-by: Peter Lieven <pl@kamp.de>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 186d4f2b1deaae5c404798959bfbdb781e762045)
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---
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block/iscsi.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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Signed-off-by: Michal Novotny <minovotn@redhat.com>
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---
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block/iscsi.c | 9 +++++++++
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1 file changed, 9 insertions(+)
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diff --git a/block/iscsi.c b/block/iscsi.c
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index 3a34eb7..1e8a2bb 100644
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--- a/block/iscsi.c
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+++ b/block/iscsi.c
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@@ -1508,6 +1508,14 @@ out:
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return ret;
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}
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+static int iscsi_get_info(BlockDriverState *bs, BlockDriverInfo *bdi)
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+{
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+ IscsiLun *iscsilun = bs->opaque;
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+ bdi->unallocated_blocks_are_zero = !!iscsilun->lbprz;
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+ bdi->can_write_zeroes_with_unmap = iscsilun->lbprz && iscsilun->lbp.lbpws;
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+ return 0;
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+}
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+
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static QEMUOptionParameter iscsi_create_options[] = {
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{
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.name = BLOCK_OPT_SIZE,
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@@ -1528,6 +1536,7 @@ static BlockDriver bdrv_iscsi = {
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.create_options = iscsi_create_options,
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.bdrv_getlength = iscsi_getlength,
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+ .bdrv_get_info = iscsi_get_info,
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.bdrv_truncate = iscsi_truncate,
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.bdrv_co_get_block_status = iscsi_co_get_block_status,
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--
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1.7.11.7
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