diff options
Diffstat (limited to 'block/vvfat.c')
| -rw-r--r-- | block/vvfat.c | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/block/vvfat.c b/block/vvfat.c index 864bfcf245..970cccf1a4 100644 --- a/block/vvfat.c +++ b/block/vvfat.c @@ -1281,6 +1281,17 @@ DLOG(fprintf(stderr, "sector %d not allocated\n", (int)sector_num)); return 0; } +static coroutine_fn int vvfat_co_read(BlockDriverState *bs, int64_t sector_num, + uint8_t *buf, int nb_sectors) +{ + int ret; + BDRVVVFATState *s = bs->opaque; + qemu_co_mutex_lock(&s->lock); + ret = vvfat_read(bs, sector_num, buf, nb_sectors); + qemu_co_mutex_unlock(&s->lock); + return ret; +} + /* LATER TODO: statify all functions */ /* @@ -2805,7 +2816,7 @@ static BlockDriver bdrv_vvfat = { .format_name = "vvfat", .instance_size = sizeof(BDRVVVFATState), .bdrv_file_open = vvfat_open, - .bdrv_read = vvfat_read, + .bdrv_read = vvfat_co_read, .bdrv_write = vvfat_write, .bdrv_close = vvfat_close, .bdrv_is_allocated = vvfat_is_allocated, |