diff options
Diffstat (limited to 'block/vvfat.c')
| -rw-r--r-- | block/vvfat.c | 34 |
1 files changed, 20 insertions, 14 deletions
diff --git a/block/vvfat.c b/block/vvfat.c index f55104c338..4fd28e1e87 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -1482,24 +1482,27 @@ static int vvfat_read(BlockDriverState *bs, int64_t sector_num, if (sector_num >= bs->total_sectors) return -1; if (s->qcow) { - int n; + int64_t n; int ret; - ret = bdrv_is_allocated(s->qcow->bs, sector_num, - nb_sectors - i, &n); + ret = bdrv_is_allocated(s->qcow->bs, sector_num * BDRV_SECTOR_SIZE, + (nb_sectors - i) * BDRV_SECTOR_SIZE, &n); if (ret < 0) { return ret; } if (ret) { - DLOG(fprintf(stderr, "sectors %d+%d allocated\n", - (int)sector_num, n)); - if (bdrv_read(s->qcow, sector_num, buf + i * 0x200, n)) { + DLOG(fprintf(stderr, "sectors %" PRId64 "+%" PRId64 + " allocated\n", sector_num, + n >> BDRV_SECTOR_BITS)); + if (bdrv_read(s->qcow, sector_num, buf + i * 0x200, + n >> BDRV_SECTOR_BITS)) { return -1; } - i += n - 1; - sector_num += n - 1; + i += (n >> BDRV_SECTOR_BITS) - 1; + sector_num += (n >> BDRV_SECTOR_BITS) - 1; continue; } -DLOG(fprintf(stderr, "sector %d not allocated\n", (int)sector_num)); + DLOG(fprintf(stderr, "sector %" PRId64 " not allocated\n", + sector_num)); } if (sector_num < s->offset_to_root_dir) { if (sector_num < s->offset_to_fat) { @@ -1779,7 +1782,7 @@ static inline bool cluster_was_modified(BDRVVVFATState *s, uint32_t cluster_num) { int was_modified = 0; - int i, dummy; + int i; if (s->qcow == NULL) { return 0; @@ -1787,8 +1790,9 @@ static inline bool cluster_was_modified(BDRVVVFATState *s, for (i = 0; !was_modified && i < s->sectors_per_cluster; i++) { was_modified = bdrv_is_allocated(s->qcow->bs, - cluster2sector(s, cluster_num) + i, - 1, &dummy); + (cluster2sector(s, cluster_num) + + i) * BDRV_SECTOR_SIZE, + BDRV_SECTOR_SIZE, NULL); } /* @@ -1935,7 +1939,7 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s, } if (copy_it) { - int i, dummy; + int i; /* * This is horribly inefficient, but that is okay, since * it is rarely executed, if at all. @@ -1946,7 +1950,9 @@ static uint32_t get_cluster_count_for_direntry(BDRVVVFATState* s, for (i = 0; i < s->sectors_per_cluster; i++) { int res; - res = bdrv_is_allocated(s->qcow->bs, offset + i, 1, &dummy); + res = bdrv_is_allocated(s->qcow->bs, + (offset + i) * BDRV_SECTOR_SIZE, + BDRV_SECTOR_SIZE, NULL); if (res < 0) { return -1; } |