diff options
author | Kevin Wolf <kwolf@redhat.com> | 2010-04-16 21:27:51 +0200 |
---|---|---|
committer | Kevin Wolf <kwolf@redhat.com> | 2010-05-03 10:07:31 +0200 |
commit | 6511ef77375100ecf9134f85f08cef31fd196cdf (patch) | |
tree | 8d6a4f97c4ff6479a8f24ad10bcb4093cd501a13 | |
parent | 9949f97e84c8040fde6116cb438f2999c52f023a (diff) |
vmdk: Convert to bdrv_open
It's a format driver, so implement bdrv_open instead of bdrv_file_open.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
-rw-r--r-- | block/vmdk.c | 51 |
1 files changed, 21 insertions, 30 deletions
diff --git a/block/vmdk.c b/block/vmdk.c index e44769b88a..e659908028 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -108,14 +108,13 @@ static int vmdk_probe(const uint8_t *buf, int buf_size, const char *filename) static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent) { - BDRVVmdkState *s = bs->opaque; char desc[DESC_SIZE]; uint32_t cid; const char *p_name, *cid_str; size_t cid_str_size; /* the descriptor offset = 0x200 */ - if (bdrv_pread(s->hd, 0x200, desc, DESC_SIZE) != DESC_SIZE) + if (bdrv_pread(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE) return 0; if (parent) { @@ -136,12 +135,11 @@ static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent) static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid) { - BDRVVmdkState *s = bs->opaque; char desc[DESC_SIZE], tmp_desc[DESC_SIZE]; char *p_name, *tmp_str; /* the descriptor offset = 0x200 */ - if (bdrv_pread(s->hd, 0x200, desc, DESC_SIZE) != DESC_SIZE) + if (bdrv_pread(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE) return -1; tmp_str = strstr(desc,"parentCID"); @@ -152,7 +150,7 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid) pstrcat(desc, sizeof(desc), tmp_desc); } - if (bdrv_pwrite(s->hd, 0x200, desc, DESC_SIZE) != DESC_SIZE) + if (bdrv_pwrite(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE) return -1; return 0; } @@ -339,12 +337,11 @@ fail: static int vmdk_parent_open(BlockDriverState *bs) { - BDRVVmdkState *s = bs->opaque; char *p_name; char desc[DESC_SIZE]; /* the descriptor offset = 0x200 */ - if (bdrv_pread(s->hd, 0x200, desc, DESC_SIZE) != DESC_SIZE) + if (bdrv_pread(bs->file, 0x200, desc, DESC_SIZE) != DESC_SIZE) return -1; if ((p_name = strstr(desc,"parentFileNameHint")) != NULL) { @@ -362,23 +359,20 @@ static int vmdk_parent_open(BlockDriverState *bs) return 0; } -static int vmdk_open(BlockDriverState *bs, const char *filename, int flags) +static int vmdk_open(BlockDriverState *bs, int flags) { BDRVVmdkState *s = bs->opaque; uint32_t magic; - int l1_size, i, ret; + int l1_size, i; - ret = bdrv_file_open(&s->hd, filename, flags); - if (ret < 0) - return ret; - if (bdrv_pread(s->hd, 0, &magic, sizeof(magic)) != sizeof(magic)) + if (bdrv_pread(bs->file, 0, &magic, sizeof(magic)) != sizeof(magic)) goto fail; magic = be32_to_cpu(magic); if (magic == VMDK3_MAGIC) { VMDK3Header header; - if (bdrv_pread(s->hd, sizeof(magic), &header, sizeof(header)) != sizeof(header)) + if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header)) != sizeof(header)) goto fail; s->cluster_sectors = le32_to_cpu(header.granularity); s->l2_size = 1 << 9; @@ -390,7 +384,7 @@ static int vmdk_open(BlockDriverState *bs, const char *filename, int flags) } else if (magic == VMDK4_MAGIC) { VMDK4Header header; - if (bdrv_pread(s->hd, sizeof(magic), &header, sizeof(header)) != sizeof(header)) + if (bdrv_pread(bs->file, sizeof(magic), &header, sizeof(header)) != sizeof(header)) goto fail; bs->total_sectors = le64_to_cpu(header.capacity); s->cluster_sectors = le64_to_cpu(header.granularity); @@ -415,7 +409,7 @@ static int vmdk_open(BlockDriverState *bs, const char *filename, int flags) /* read the L1 table */ l1_size = s->l1_size * sizeof(uint32_t); s->l1_table = qemu_malloc(l1_size); - if (bdrv_pread(s->hd, s->l1_table_offset, s->l1_table, l1_size) != l1_size) + if (bdrv_pread(bs->file, s->l1_table_offset, s->l1_table, l1_size) != l1_size) goto fail; for(i = 0; i < s->l1_size; i++) { le32_to_cpus(&s->l1_table[i]); @@ -423,7 +417,7 @@ static int vmdk_open(BlockDriverState *bs, const char *filename, int flags) if (s->l1_backup_table_offset) { s->l1_backup_table = qemu_malloc(l1_size); - if (bdrv_pread(s->hd, s->l1_backup_table_offset, s->l1_backup_table, l1_size) != l1_size) + if (bdrv_pread(bs->file, s->l1_backup_table_offset, s->l1_backup_table, l1_size) != l1_size) goto fail; for(i = 0; i < s->l1_size; i++) { le32_to_cpus(&s->l1_backup_table[i]); @@ -436,7 +430,6 @@ static int vmdk_open(BlockDriverState *bs, const char *filename, int flags) qemu_free(s->l1_backup_table); qemu_free(s->l1_table); qemu_free(s->l2_cache); - bdrv_delete(s->hd); return -1; } @@ -464,7 +457,7 @@ static int get_whole_cluster(BlockDriverState *bs, uint64_t cluster_offset, } //Write grain only into the active image - ret = bdrv_write(s->hd, cluster_offset, whole_grain, + ret = bdrv_write(bs->file, cluster_offset, whole_grain, s->cluster_sectors); if (ret < 0) { return -1; @@ -478,13 +471,13 @@ static int vmdk_L2update(BlockDriverState *bs, VmdkMetaData *m_data) BDRVVmdkState *s = bs->opaque; /* update L2 table */ - if (bdrv_pwrite(s->hd, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(m_data->offset)), + if (bdrv_pwrite(bs->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(m_data->offset)), &(m_data->offset), sizeof(m_data->offset)) != sizeof(m_data->offset)) return -1; /* update backup L2 table */ if (s->l1_backup_table_offset != 0) { m_data->l2_offset = s->l1_backup_table[m_data->l1_index]; - if (bdrv_pwrite(s->hd, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(m_data->offset)), + if (bdrv_pwrite(bs->file, ((int64_t)m_data->l2_offset * 512) + (m_data->l2_index * sizeof(m_data->offset)), &(m_data->offset), sizeof(m_data->offset)) != sizeof(m_data->offset)) return -1; } @@ -532,7 +525,7 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, VmdkMetaData *m_data, } } l2_table = s->l2_cache + (min_index * s->l2_size); - if (bdrv_pread(s->hd, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) != + if (bdrv_pread(bs->file, (int64_t)l2_offset * 512, l2_table, s->l2_size * sizeof(uint32_t)) != s->l2_size * sizeof(uint32_t)) return 0; @@ -547,8 +540,8 @@ static uint64_t get_cluster_offset(BlockDriverState *bs, VmdkMetaData *m_data, return 0; // Avoid the L2 tables update for the images that have snapshots. - cluster_offset = bdrv_getlength(s->hd); - bdrv_truncate(s->hd, cluster_offset + (s->cluster_sectors << 9)); + cluster_offset = bdrv_getlength(bs->file); + bdrv_truncate(bs->file, cluster_offset + (s->cluster_sectors << 9)); cluster_offset >>= 9; tmp = cpu_to_le32(cluster_offset); @@ -615,7 +608,7 @@ static int vmdk_read(BlockDriverState *bs, int64_t sector_num, memset(buf, 0, 512 * n); } } else { - if(bdrv_pread(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512) != n * 512) + if(bdrv_pread(bs->file, cluster_offset + index_in_cluster * 512, buf, n * 512) != n * 512) return -1; } nb_sectors -= n; @@ -651,7 +644,7 @@ static int vmdk_write(BlockDriverState *bs, int64_t sector_num, if (!cluster_offset) return -1; - if (bdrv_pwrite(s->hd, cluster_offset + index_in_cluster * 512, buf, n * 512) != n * 512) + if (bdrv_pwrite(bs->file, cluster_offset + index_in_cluster * 512, buf, n * 512) != n * 512) return -1; if (m_data.valid) { /* update L2 tables */ @@ -828,13 +821,11 @@ static void vmdk_close(BlockDriverState *bs) qemu_free(s->l1_table); qemu_free(s->l2_cache); - bdrv_delete(s->hd); } static void vmdk_flush(BlockDriverState *bs) { - BDRVVmdkState *s = bs->opaque; - bdrv_flush(s->hd); + bdrv_flush(bs->file); } @@ -861,7 +852,7 @@ static BlockDriver bdrv_vmdk = { .format_name = "vmdk", .instance_size = sizeof(BDRVVmdkState), .bdrv_probe = vmdk_probe, - .bdrv_file_open = vmdk_open, + .bdrv_open = vmdk_open, .bdrv_read = vmdk_read, .bdrv_write = vmdk_write, .bdrv_close = vmdk_close, |