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