From 6eea90eba47534d57f05d16c1b7d695574e2395d Mon Sep 17 00:00:00 2001 From: Stefan Weil Date: Fri, 14 Aug 2009 21:50:02 +0200 Subject: [PATCH] block/vdi.c: Fix several bugs * The code for option '-static' was wrong, so image creation always created static images. * Static images created with qemu-img did not set header entry blocks_allocated. * The size of the block map must be rounded to the next multiple of SECTOR_SIZE, otherwise the block map is only read partially for block map sizes which are not a multiple of SECTOR_SIZE. Signed-off-by: Stefan Weil Signed-off-by: Anthony Liguori --- block/vdi.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/block/vdi.c b/block/vdi.c index 4ca8dcb7..c9c8890f 100644 --- a/block/vdi.c +++ b/block/vdi.c @@ -437,9 +437,9 @@ static int vdi_open(BlockDriverState *bs, const char *filename, int flags) s->header = header; bmap_size = header.blocks_in_image * sizeof(uint32_t); - s->bmap = qemu_malloc(bmap_size); - if (bdrv_read(s->hd, s->bmap_sector, - (uint8_t *)s->bmap, bmap_size / SECTOR_SIZE) < 0) { + bmap_size = (bmap_size + SECTOR_SIZE - 1) / SECTOR_SIZE; + s->bmap = qemu_malloc(bmap_size * SECTOR_SIZE); + if (bdrv_read(s->hd, s->bmap_sector, (uint8_t *)s->bmap, bmap_size) < 0) { goto fail_free_bmap; } @@ -817,7 +817,9 @@ static int vdi_create(const char *filename, QEMUOptionParameter *options) #endif #if defined(CONFIG_VDI_STATIC_IMAGE) } else if (!strcmp(options->name, BLOCK_OPT_STATIC)) { - image_type = VDI_TYPE_STATIC; + if (options->value.n) { + image_type = VDI_TYPE_STATIC; + } #endif } options++; @@ -845,6 +847,9 @@ static int vdi_create(const char *filename, QEMUOptionParameter *options) header.disk_size = bytes; header.block_size = block_size; header.blocks_in_image = blocks; + if (image_type == VDI_TYPE_STATIC) { + header.blocks_allocated = blocks; + } uuid_generate(header.uuid_image); uuid_generate(header.uuid_last_snap); /* There is no need to set header.uuid_link or header.uuid_parent here. */ -- 2.11.4.GIT