diff options
| author | Fam Zheng <famcool@gmail.com> | 2011-07-12 19:56:39 +0800 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2011-07-19 15:39:08 +0200 |
| commit | 4a1d5e1fded54358ddc4d8cbd53388ca7c93499b (patch) | |
| tree | e317502ecc47e7cf31ab53bbc3f4dd2c9b92c7f0 /block/vmdk.c | |
| parent | ae261c86aaed62e7acddafab8262a2bf286d40b7 (diff) | |
block: add bdrv_get_allocated_file_size() operation
qemu-img.c wants to count allocated file size of image. Previously it
counts a single bs->file by 'stat' or Window API. As VMDK introduces
multiple file support, the operation becomes format specific with
platform specific meanwhile.
The functions are moved to block/raw-{posix,win32}.c and qemu-img.c calls
bdrv_get_allocated_file_size to count the bs. And also added VMDK code
to count his own extents.
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>
Diffstat (limited to 'block/vmdk.c')
| -rw-r--r-- | block/vmdk.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/block/vmdk.c b/block/vmdk.c index de08d0ce2d..37478d2553 100644 --- a/block/vmdk.c +++ b/block/vmdk.c @@ -1289,6 +1289,29 @@ static int vmdk_flush(BlockDriverState *bs) return ret; } +static int64_t vmdk_get_allocated_file_size(BlockDriverState *bs) +{ + int i; + int64_t ret = 0; + int64_t r; + BDRVVmdkState *s = bs->opaque; + + ret = bdrv_get_allocated_file_size(bs->file); + if (ret < 0) { + return ret; + } + for (i = 0; i < s->num_extents; i++) { + if (s->extents[i].file == bs->file) { + continue; + } + r = bdrv_get_allocated_file_size(s->extents[i].file); + if (r < 0) { + return r; + } + ret += r; + } + return ret; +} static QEMUOptionParameter vmdk_create_options[] = { { @@ -1327,6 +1350,7 @@ static BlockDriver bdrv_vmdk = { .bdrv_create = vmdk_create, .bdrv_flush = vmdk_flush, .bdrv_is_allocated = vmdk_is_allocated, + .bdrv_get_allocated_file_size = vmdk_get_allocated_file_size, .create_options = vmdk_create_options, }; |