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From 67a51a2fa1212326602dac399027ca94e382a7f2 Mon Sep 17 00:00:00 2001
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From: Fam Zheng <famz@redhat.com>
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Date: Wed, 20 Nov 2013 09:16:44 +0100
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Subject: [PATCH 05/14] block: Round up total_sectors
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RH-Author: Fam Zheng <famz@redhat.com>
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Message-id: <1384939004-30831-3-git-send-email-famz@redhat.com>
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Patchwork-id: 55785
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O-Subject: [RHEL-7 qemu-kvm PATCH 2/2] block: Round up total_sectors
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Bugzilla: 1025138
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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RH-Acked-by: Kevin Wolf <kwolf@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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Since b94a2610, bdrv_getlength() is omitted when probing image. VMDK
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monolithicFlat is broken by that because a file < 512 bytes can't be
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read with its total_sectors truncated to 0. This patch round up the size
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to BDRV_SECTOR_SIZE, when a image size is not sector aligned.
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Signed-off-by: Fam Zheng <famz@redhat.com>
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Reviewed-by: Benoit Canet <benoit@irqsave.net>
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 7e382003f1bd9d8a441ecc5ac8a74bad3564d943)
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Signed-off-by: Fam Zheng <famz@redhat.com>
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---
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block.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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Signed-off-by: Fam Zheng <famz@redhat.com>
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---
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block.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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block.c | 2 +-
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1 files changed, 1 insertions(+), 1 deletions(-)
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diff --git a/block.c b/block.c
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index 301c4fb..72ab36c 100644
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--- a/block.c
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+++ b/block.c
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@@ -612,7 +612,7 @@ static int refresh_total_sectors(BlockDriverState *bs, int64_t hint)
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if (length < 0) {
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return length;
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}
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- hint = length >> BDRV_SECTOR_BITS;
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+ hint = DIV_ROUND_UP(length, BDRV_SECTOR_SIZE);
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}
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bs->total_sectors = hint;
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--
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1.7.1
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