From 8582972227196c289bb3b28086b3b2d01071d958 Mon Sep 17 00:00:00 2001 From: Liu Yuan Date: Wed, 7 Aug 2013 16:59:53 +0800 Subject: sheepdog: implement .bdrv_get_allocated_file_size With this patch, qemu-img info sheepdog:image will show disk size for sheepdog images. Cc: Kevin Wolf Cc: Stefan Hajnoczi Cc: MORITA Kazutaka Signed-off-by: Liu Yuan Reviewed-by: MORITA Kazutaka Signed-off-by: Kevin Wolf --- block/sheepdog.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/block/sheepdog.c b/block/sheepdog.c index ef387de71f..252d7ad3a2 100644 --- a/block/sheepdog.c +++ b/block/sheepdog.c @@ -2407,6 +2407,22 @@ sd_co_get_block_status(BlockDriverState *bs, int64_t sector_num, int nb_sectors, return ret; } +static int64_t sd_get_allocated_file_size(BlockDriverState *bs) +{ + BDRVSheepdogState *s = bs->opaque; + SheepdogInode *inode = &s->inode; + unsigned long i, last = DIV_ROUND_UP(inode->vdi_size, SD_DATA_OBJ_SIZE); + uint64_t size = 0; + + for (i = 0; i < last; i++) { + if (inode->data_vdi_id[i] == 0) { + continue; + } + size += SD_DATA_OBJ_SIZE; + } + return size; +} + static QEMUOptionParameter sd_create_options[] = { { .name = BLOCK_OPT_SIZE, @@ -2436,6 +2452,7 @@ static BlockDriver bdrv_sheepdog = { .bdrv_create = sd_create, .bdrv_has_zero_init = bdrv_has_zero_init_1, .bdrv_getlength = sd_getlength, + .bdrv_get_allocated_file_size = sd_get_allocated_file_size, .bdrv_truncate = sd_truncate, .bdrv_co_readv = sd_co_readv, @@ -2465,6 +2482,7 @@ static BlockDriver bdrv_sheepdog_tcp = { .bdrv_create = sd_create, .bdrv_has_zero_init = bdrv_has_zero_init_1, .bdrv_getlength = sd_getlength, + .bdrv_get_allocated_file_size = sd_get_allocated_file_size, .bdrv_truncate = sd_truncate, .bdrv_co_readv = sd_co_readv, @@ -2494,6 +2512,7 @@ static BlockDriver bdrv_sheepdog_unix = { .bdrv_create = sd_create, .bdrv_has_zero_init = bdrv_has_zero_init_1, .bdrv_getlength = sd_getlength, + .bdrv_get_allocated_file_size = sd_get_allocated_file_size, .bdrv_truncate = sd_truncate, .bdrv_co_readv = sd_co_readv, -- cgit v1.2.3