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VMDK: fix coding style 

Conform coding style in vmdk.c to pass scripts/checkpatch.pl checks.

Signed-off-by: Fam Zheng <famcool@gmail.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Fam Zheng 2011-07-12 19:56:38 +08:00 committed by Kevin Wolf
parent f66fd6c383
commit ae261c86aa
1 changed files with 46 additions and 30 deletions
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76
block/vmdk.c
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@ -102,8 +102,9 @@ static int vmdk_probe(const uint8_t *buf, int buf_size, const char *filename)
{
uint32_t magic;
if (buf_size < 4)
if (buf_size < 4) {
return 0;
}
magic = be32_to_cpu(*(uint32_t *)buf);
if (magic == VMDK3_MAGIC ||
magic == VMDK4_MAGIC) {
@ -193,9 +194,10 @@ static uint32_t vmdk_read_cid(BlockDriverState *bs, int parent)
cid_str_size = sizeof("CID");
}
if ((p_name = strstr(desc,cid_str)) != NULL) {
p_name = strstr(desc, cid_str);
if (p_name != NULL) {
p_name += cid_str_size;
sscanf(p_name,"%x",&cid);
sscanf(p_name, "%x", &cid);
}
return cid;
@ -212,9 +214,10 @@ static int vmdk_write_cid(BlockDriverState *bs, uint32_t cid)
return -EIO;
}
tmp_str = strstr(desc,"parentCID");
tmp_str = strstr(desc, "parentCID");
pstrcpy(tmp_desc, sizeof(tmp_desc), tmp_str);
if ((p_name = strstr(desc,"CID")) != NULL) {
p_name = strstr(desc, "CID");
if (p_name != NULL) {
p_name += sizeof("CID");
snprintf(p_name, sizeof(desc) - (p_name - desc), "%x\n", cid);
pstrcat(desc, sizeof(desc), tmp_desc);
@ -234,13 +237,14 @@ static int vmdk_is_cid_valid(BlockDriverState *bs)
uint32_t cur_pcid;
if (p_bs) {
cur_pcid = vmdk_read_cid(p_bs,0);
if (s->parent_cid != cur_pcid)
// CID not valid
cur_pcid = vmdk_read_cid(p_bs, 0);
if (s->parent_cid != cur_pcid) {
/* CID not valid */
return 0;
}
}
#endif
// CID valid
/* CID valid */
return 1;
}
@ -255,14 +259,18 @@ static int vmdk_parent_open(BlockDriverState *bs)
return -1;
}
if ((p_name = strstr(desc,"parentFileNameHint")) != NULL) {
p_name = strstr(desc, "parentFileNameHint");
if (p_name != NULL) {
char *end_name;
p_name += sizeof("parentFileNameHint") + 1;
if ((end_name = strchr(p_name,'\"')) == NULL)
end_name = strchr(p_name, '\"');
if (end_name == NULL) {
return -1;
if ((end_name - p_name) > sizeof (bs->backing_file) - 1)
}
if ((end_name - p_name) > sizeof(bs->backing_file) - 1) {
return -1;
}
pstrcpy(bs->backing_file, end_name - p_name + 1, p_name);
}
@ -595,8 +603,9 @@ static int get_whole_cluster(BlockDriverState *bs,
if (bs->backing_hd) {
int ret;
if (!vmdk_is_cid_valid(bs))
if (!vmdk_is_cid_valid(bs)) {
return -1;
}
/* floor offset to cluster */
offset -= offset % (extent->cluster_sectors * 512);
@ -655,8 +664,9 @@ static int get_cluster_offset(BlockDriverState *bs,
int min_index, i, j;
uint32_t min_count, *l2_table, tmp = 0;
if (m_data)
if (m_data) {
m_data->valid = 0;
}
if (extent->flat) {
*cluster_offset = extent->flat_start_offset;
return 0;
@ -712,7 +722,7 @@ static int get_cluster_offset(BlockDriverState *bs,
return -1;
}
// Avoid the L2 tables update for the images that have snapshots.
/* Avoid the L2 tables update for the images that have snapshots. */
*cluster_offset = bdrv_getlength(extent->file);
bdrv_truncate(
extent->file,
@ -729,8 +739,9 @@ static int get_cluster_offset(BlockDriverState *bs,
* or inappropriate VM shutdown.
*/
if (get_whole_cluster(
bs, extent, *cluster_offset, offset, allocate) == -1)
bs, extent, *cluster_offset, offset, allocate) == -1) {
return -1;
}
if (m_data) {
m_data->offset = tmp;
@ -780,8 +791,9 @@ static int vmdk_is_allocated(BlockDriverState *bs, int64_t sector_num,
index_in_cluster = sector_num % extent->cluster_sectors;
n = extent->cluster_sectors - index_in_cluster;
if (n > nb_sectors)
if (n > nb_sectors) {
n = nb_sectors;
}
*pnum = n;
return ret;
}
@ -805,16 +817,19 @@ static int vmdk_read(BlockDriverState *bs, int64_t sector_num,
sector_num << 9, 0, &cluster_offset);
index_in_cluster = sector_num % extent->cluster_sectors;
n = extent->cluster_sectors - index_in_cluster;
if (n > nb_sectors)
if (n > nb_sectors) {
n = nb_sectors;
}
if (ret) {
/* if not allocated, try to read from parent image, if exist */
if (bs->backing_hd) {
if (!vmdk_is_cid_valid(bs))
if (!vmdk_is_cid_valid(bs)) {
return -EINVAL;
}
ret = bdrv_read(bs->backing_hd, sector_num, buf, n);
if (ret < 0)
if (ret < 0) {
return ret;
}
} else {
memset(buf, 0, 512 * n);
}
@ -888,7 +903,8 @@ static int vmdk_write(BlockDriverState *bs, int64_t sector_num,
sector_num += n;
buf += n * 512;
// update CID on the first write every time the virtual disk is opened
/* update CID on the first write every time the virtual disk is
* opened */
if (!s->cid_updated) {
vmdk_write_cid(bs, time(NULL));
s->cid_updated = true;
@ -1301,16 +1317,16 @@ static QEMUOptionParameter vmdk_create_options[] = {
};
static BlockDriver bdrv_vmdk = {
.format_name = "vmdk",
.instance_size = sizeof(BDRVVmdkState),
.bdrv_probe = vmdk_probe,
.format_name = "vmdk",
.instance_size = sizeof(BDRVVmdkState),
.bdrv_probe = vmdk_probe,
.bdrv_open = vmdk_open,
.bdrv_read = vmdk_read,
.bdrv_write = vmdk_write,
.bdrv_close = vmdk_close,
.bdrv_create = vmdk_create,
.bdrv_flush = vmdk_flush,
.bdrv_is_allocated = vmdk_is_allocated,
.bdrv_read = vmdk_read,
.bdrv_write = vmdk_write,
.bdrv_close = vmdk_close,
.bdrv_create = vmdk_create,
.bdrv_flush = vmdk_flush,
.bdrv_is_allocated = vmdk_is_allocated,
.create_options = vmdk_create_options,
};