From db1e80ee2ed6fc9eb6b203873b39752144f5577f Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Mon, 20 Jun 2016 22:05:39 +0200 Subject: vhdx: Some more BlockBackend use in vhdx_create() This does some easy conversions from bdrv_* to blk_* functions in vhdx_create(). We should avoid bypassing the BlockBackend layer whenever possible. Signed-off-by: Kevin Wolf Reviewed-by: Max Reitz Acked-by: Stefan Hajnoczi --- block/vhdx.c | 41 +++++++++++++++++++++-------------------- 1 file changed, 21 insertions(+), 20 deletions(-) (limited to 'block/vhdx.c') diff --git a/block/vhdx.c b/block/vhdx.c index f5605a2ff4..33b81e29b4 100644 --- a/block/vhdx.c +++ b/block/vhdx.c @@ -1387,9 +1387,10 @@ exit: * There are 2 headers, and the highest sequence number will represent * the active header */ -static int vhdx_create_new_headers(BlockDriverState *bs, uint64_t image_size, +static int vhdx_create_new_headers(BlockBackend *blk, uint64_t image_size, uint32_t log_size) { + BlockDriverState *bs = blk_bs(blk); int ret = 0; VHDXHeader *hdr = NULL; @@ -1442,7 +1443,7 @@ exit: * The first 64KB of the Metadata section is reserved for the metadata * header and entries; beyond that, the metadata items themselves reside. */ -static int vhdx_create_new_metadata(BlockDriverState *bs, +static int vhdx_create_new_metadata(BlockBackend *blk, uint64_t image_size, uint32_t block_size, uint32_t sector_size, @@ -1538,13 +1539,13 @@ static int vhdx_create_new_metadata(BlockDriverState *bs, VHDX_META_FLAGS_IS_VIRTUAL_DISK; vhdx_metadata_entry_le_export(&md_table_entry[4]); - ret = bdrv_pwrite(bs, metadata_offset, buffer, VHDX_HEADER_BLOCK_SIZE); + ret = blk_pwrite(blk, metadata_offset, buffer, VHDX_HEADER_BLOCK_SIZE, 0); if (ret < 0) { goto exit; } - ret = bdrv_pwrite(bs, metadata_offset + (64 * KiB), entry_buffer, - VHDX_METADATA_ENTRY_BUFFER_SIZE); + ret = blk_pwrite(blk, metadata_offset + (64 * KiB), entry_buffer, + VHDX_METADATA_ENTRY_BUFFER_SIZE, 0); if (ret < 0) { goto exit; } @@ -1564,7 +1565,7 @@ exit: * Fixed images: default state of the BAT is fully populated, with * file offsets and state PAYLOAD_BLOCK_FULLY_PRESENT. */ -static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, +static int vhdx_create_bat(BlockBackend *blk, BDRVVHDXState *s, uint64_t image_size, VHDXImageType type, bool use_zero_blocks, uint64_t file_offset, uint32_t length) @@ -1588,12 +1589,12 @@ static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, if (type == VHDX_TYPE_DYNAMIC) { /* All zeroes, so we can just extend the file - the end of the BAT * is the furthest thing we have written yet */ - ret = bdrv_truncate(bs, data_file_offset); + ret = blk_truncate(blk, data_file_offset); if (ret < 0) { goto exit; } } else if (type == VHDX_TYPE_FIXED) { - ret = bdrv_truncate(bs, data_file_offset + image_size); + ret = blk_truncate(blk, data_file_offset + image_size); if (ret < 0) { goto exit; } @@ -1604,7 +1605,7 @@ static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, if (type == VHDX_TYPE_FIXED || use_zero_blocks || - bdrv_has_zero_init(bs) == 0) { + bdrv_has_zero_init(blk_bs(blk)) == 0) { /* for a fixed file, the default BAT entry is not zero */ s->bat = g_try_malloc0(length); if (length && s->bat == NULL) { @@ -1620,12 +1621,12 @@ static int vhdx_create_bat(BlockDriverState *bs, BDRVVHDXState *s, sinfo.file_offset = data_file_offset + (sector_num << s->logical_sector_size_bits); sinfo.file_offset = ROUND_UP(sinfo.file_offset, MiB); - vhdx_update_bat_table_entry(bs, s, &sinfo, &unused, &unused, + vhdx_update_bat_table_entry(blk_bs(blk), s, &sinfo, &unused, &unused, block_state); cpu_to_le64s(&s->bat[sinfo.bat_idx]); sector_num += s->sectors_per_block; } - ret = bdrv_pwrite(bs, file_offset, s->bat, length); + ret = blk_pwrite(blk, file_offset, s->bat, length, 0); if (ret < 0) { goto exit; } @@ -1645,7 +1646,7 @@ exit: * to create the BAT itself, we will also cause the BAT to be * created. */ -static int vhdx_create_new_region_table(BlockDriverState *bs, +static int vhdx_create_new_region_table(BlockBackend *blk, uint64_t image_size, uint32_t block_size, uint32_t sector_size, @@ -1720,21 +1721,21 @@ static int vhdx_create_new_region_table(BlockDriverState *bs, /* The region table gives us the data we need to create the BAT, * so do that now */ - ret = vhdx_create_bat(bs, s, image_size, type, use_zero_blocks, + ret = vhdx_create_bat(blk, s, image_size, type, use_zero_blocks, bat_file_offset, bat_length); if (ret < 0) { goto exit; } /* Now write out the region headers to disk */ - ret = bdrv_pwrite(bs, VHDX_REGION_TABLE_OFFSET, buffer, - VHDX_HEADER_BLOCK_SIZE); + ret = blk_pwrite(blk, VHDX_REGION_TABLE_OFFSET, buffer, + VHDX_HEADER_BLOCK_SIZE, 0); if (ret < 0) { goto exit; } - ret = bdrv_pwrite(bs, VHDX_REGION_TABLE2_OFFSET, buffer, - VHDX_HEADER_BLOCK_SIZE); + ret = blk_pwrite(blk, VHDX_REGION_TABLE2_OFFSET, buffer, + VHDX_HEADER_BLOCK_SIZE, 0); if (ret < 0) { goto exit; } @@ -1871,13 +1872,13 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp) /* Creates (B),(C) */ - ret = vhdx_create_new_headers(blk_bs(blk), image_size, log_size); + ret = vhdx_create_new_headers(blk, image_size, log_size); if (ret < 0) { goto delete_and_exit; } /* Creates (D),(E),(G) explicitly. (F) created as by-product */ - ret = vhdx_create_new_region_table(blk_bs(blk), image_size, block_size, 512, + ret = vhdx_create_new_region_table(blk, image_size, block_size, 512, log_size, use_zero_blocks, image_type, &metadata_offset); if (ret < 0) { @@ -1885,7 +1886,7 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp) } /* Creates (H) */ - ret = vhdx_create_new_metadata(blk_bs(blk), image_size, block_size, 512, + ret = vhdx_create_new_metadata(blk, image_size, block_size, 512, metadata_offset, image_type); if (ret < 0) { goto delete_and_exit; -- cgit v1.2.1