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block: Convert bdrv_pread(v) to BdrvChild

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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
This commit is contained in:
Kevin Wolf 2016-06-20 18:24:02 +02:00
parent 18d51c4bac
commit cf2ab8fc34
18 changed files with 108 additions and 101 deletions
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16
block/qcow2.c
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@ -107,7 +107,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
printf("attempting to read extended header in offset %lu\n", offset);
#endif
ret = bdrv_pread(bs->file->bs, offset, &ext, sizeof(ext));
ret = bdrv_pread(bs->file, offset, &ext, sizeof(ext));
if (ret < 0) {
error_setg_errno(errp, -ret, "qcow2_read_extension: ERROR: "
"pread fail from offset %" PRIu64, offset);
@ -135,7 +135,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
sizeof(bs->backing_format));
return 2;
}
ret = bdrv_pread(bs->file->bs, offset, bs->backing_format, ext.len);
ret = bdrv_pread(bs->file, offset, bs->backing_format, ext.len);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_backing_format: "
"Could not read format name");
@ -151,7 +151,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
case QCOW2_EXT_MAGIC_FEATURE_TABLE:
if (p_feature_table != NULL) {
void* feature_table = g_malloc0(ext.len + 2 * sizeof(Qcow2Feature));
ret = bdrv_pread(bs->file->bs, offset , feature_table, ext.len);
ret = bdrv_pread(bs->file, offset , feature_table, ext.len);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: ext_feature_table: "
"Could not read table");
@ -172,7 +172,7 @@ static int qcow2_read_extensions(BlockDriverState *bs, uint64_t start_offset,
uext->len = ext.len;
QLIST_INSERT_HEAD(&s->unknown_header_ext, uext, next);
ret = bdrv_pread(bs->file->bs, offset , uext->data, uext->len);
ret = bdrv_pread(bs->file, offset , uext->data, uext->len);
if (ret < 0) {
error_setg_errno(errp, -ret, "ERROR: unknown extension: "
"Could not read data");
@ -817,7 +817,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
uint64_t ext_end;
uint64_t l1_vm_state_index;
ret = bdrv_pread(bs->file->bs, 0, &header, sizeof(header));
ret = bdrv_pread(bs->file, 0, &header, sizeof(header));
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read qcow2 header");
goto fail;
@ -892,7 +892,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
if (header.header_length > sizeof(header)) {
s->unknown_header_fields_size = header.header_length - sizeof(header);
s->unknown_header_fields = g_malloc(s->unknown_header_fields_size);
ret = bdrv_pread(bs->file->bs, sizeof(header), s->unknown_header_fields,
ret = bdrv_pread(bs->file, sizeof(header), s->unknown_header_fields,
s->unknown_header_fields_size);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read unknown qcow2 header "
@ -1066,7 +1066,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
ret = -ENOMEM;
goto fail;
}
ret = bdrv_pread(bs->file->bs, s->l1_table_offset, s->l1_table,
ret = bdrv_pread(bs->file, s->l1_table_offset, s->l1_table,
s->l1_size * sizeof(uint64_t));
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read L1 table");
@ -1122,7 +1122,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
ret = -EINVAL;
goto fail;
}
ret = bdrv_pread(bs->file->bs, header.backing_file_offset,
ret = bdrv_pread(bs->file, header.backing_file_offset,
bs->backing_file, len);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read backing file name");