Message ID | 1378314038-15525-7-git-send-email-pbonzini@redhat.com |
---|---|
State | New |
Headers | show |
diff --git a/block.c b/block.c index 0e95b47..410d5dd 100644 --- a/block.c +++ b/block.c @@ -3045,9 +3045,15 @@ static int coroutine_fn bdrv_co_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors, int *pnum) { + int64_t length; int64_t n; - if (sector_num >= bs->total_sectors) { + length = bdrv_getlength(bs); + if (length < 0) { + return length; + } + + if (sector_num >= (length >> BDRV_SECTOR_BITS)) { *pnum = 0; return 0; }
This is more robust when the device has removable media. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> --- block.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)