If we have a backup L2 table, we currently flush once after writing to the active L2 table and again after writing to the backup table. A single flush is enough and makes things a little less slow.
Signed-off-by: Kevin Wolf <kw...@redhat.com> Message-Id: <20200430133007.170335-6-kw...@redhat.com> Reviewed-by: Eric Blake <ebl...@redhat.com> Signed-off-by: Kevin Wolf <kw...@redhat.com> --- block/vmdk.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/block/vmdk.c b/block/vmdk.c index 2880d88dea..b18f128816 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1435,7 +1435,7 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data, offset = cpu_to_le32(offset); /* update L2 table */ BLKDBG_EVENT(extent->file, BLKDBG_L2_UPDATE); - if (bdrv_pwrite_sync(extent->file, + if (bdrv_pwrite(extent->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(offset)), &offset, sizeof(offset)) < 0) { @@ -1444,13 +1444,16 @@ static int vmdk_L2update(VmdkExtent *extent, VmdkMetaData *m_data, /* update backup L2 table */ if (extent->l1_backup_table_offset != 0) { m_data->l2_offset = extent->l1_backup_table[m_data->l1_index]; - if (bdrv_pwrite_sync(extent->file, + if (bdrv_pwrite(extent->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(offset)), &offset, sizeof(offset)) < 0) { return VMDK_ERROR; } } + if (bdrv_flush(extent->file->bs) < 0) { + return VMDK_ERROR; + } if (m_data->l2_cache_entry) { *m_data->l2_cache_entry = offset; } -- 2.25.3