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From 815d053228bffeb0c2774f283c249ddf7f5fb03e Mon Sep 17 00:00:00 2001
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From: Paolo Bonzini <pbonzini@redhat.com>
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Date: Fri, 18 Oct 2013 08:14:46 +0200
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Subject: [PATCH 21/81] block: add default get_block_status implementation for protocols
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RH-Author: Paolo Bonzini <pbonzini@redhat.com>
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Message-id: <1382084091-16636-22-git-send-email-pbonzini@redhat.com>
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Patchwork-id: 55004
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O-Subject: [RHEL 7.0 qemu-kvm PATCH 21/26] block: add default get_block_status implementation for protocols
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Bugzilla: 989646
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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Protocols return raw data, so you can assume the offsets to pass
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through unchanged.
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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(cherry picked from commit 918e92d71b38306a6bf4fedfd1109367f1425587)
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---
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block.c | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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block.c | 6 +++++-
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1 files changed, 5 insertions(+), 1 deletions(-)
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diff --git a/block.c b/block.c
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index 36a2f24..2a4a9dd 100644
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--- a/block.c
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+++ b/block.c
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@@ -3060,7 +3060,11 @@ static int64_t coroutine_fn bdrv_co_get_block_status(BlockDriverState *bs,
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if (!bs->drv->bdrv_co_get_block_status) {
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*pnum = nb_sectors;
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- return BDRV_BLOCK_DATA;
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+ ret = BDRV_BLOCK_DATA;
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+ if (bs->drv->protocol_name) {
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+ ret |= BDRV_BLOCK_OFFSET_VALID | (sector_num * BDRV_SECTOR_SIZE);
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+ }
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+ return ret;
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}
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ret = bs->drv->bdrv_co_get_block_status(bs, sector_num, nb_sectors, pnum);
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--
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1.7.1
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