From: Fam Zheng <famz@redhat.com>
To: qemu-devel@nongnu.org
Cc: Kevin Wolf <kwolf@redhat.com>, Fam Zheng <famz@redhat.com>,
qemu-stable@nongnu.org, qemu-block@nongnu.org
Subject: [Qemu-devel] [PATCH 2/2] vmdk: Use vmdk_find_index_in_cluster everywhere
Date: Thu, 4 Jun 2015 14:02:57 +0800 [thread overview]
Message-ID: <1433397777-6754-3-git-send-email-famz@redhat.com> (raw)
In-Reply-To: <1433397777-6754-1-git-send-email-famz@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
---
block/vmdk.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/block/vmdk.c b/block/vmdk.c
index 3e4d84b..56626b0 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1424,7 +1424,6 @@ static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
BDRVVmdkState *s = bs->opaque;
int ret;
uint64_t n, index_in_cluster;
- uint64_t extent_begin_sector, extent_relative_sector_num;
VmdkExtent *extent = NULL;
uint64_t cluster_offset;
@@ -1436,9 +1435,7 @@ static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
ret = get_cluster_offset(bs, extent, NULL,
sector_num << 9, false, &cluster_offset,
0, 0);
- extent_begin_sector = extent->end_sector - extent->sectors;
- extent_relative_sector_num = sector_num - extent_begin_sector;
- index_in_cluster = extent_relative_sector_num % extent->cluster_sectors;
+ index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num);
n = extent->cluster_sectors - index_in_cluster;
if (n > nb_sectors) {
n = nb_sectors;
@@ -1500,7 +1497,6 @@ static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
VmdkExtent *extent = NULL;
int ret;
int64_t index_in_cluster, n;
- uint64_t extent_begin_sector, extent_relative_sector_num;
uint64_t cluster_offset;
VmdkMetaData m_data;
@@ -1516,9 +1512,7 @@ static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
if (!extent) {
return -EIO;
}
- extent_begin_sector = extent->end_sector - extent->sectors;
- extent_relative_sector_num = sector_num - extent_begin_sector;
- index_in_cluster = extent_relative_sector_num % extent->cluster_sectors;
+ index_in_cluster = vmdk_find_index_in_cluster(extent, sector_num);
n = extent->cluster_sectors - index_in_cluster;
if (n > nb_sectors) {
n = nb_sectors;
--
2.4.2
next prev parent reply other threads:[~2015-06-04 6:03 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-06-04 6:02 [Qemu-devel] [PATCH 0/2] vmdk: Fix vmdk_co_get_block_status Fam Zheng
2015-06-04 6:02 ` [Qemu-devel] [PATCH 1/2] vmdk: Fix index_in_cluster calculation in vmdk_co_get_block_status Fam Zheng
2015-06-05 16:49 ` [Qemu-devel] [Qemu-block] " Max Reitz
2015-06-04 6:02 ` Fam Zheng [this message]
2015-06-05 16:51 ` [Qemu-devel] [Qemu-block] [PATCH 2/2] vmdk: Use vmdk_find_index_in_cluster everywhere Max Reitz
2015-06-08 10:45 ` [Qemu-devel] [PATCH 0/2] vmdk: Fix vmdk_co_get_block_status Kevin Wolf
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1433397777-6754-3-git-send-email-famz@redhat.com \
--to=famz@redhat.com \
--cc=kwolf@redhat.com \
--cc=qemu-block@nongnu.org \
--cc=qemu-devel@nongnu.org \
--cc=qemu-stable@nongnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).