Commit 8b2bd093 authored by Pavel Butsykin's avatar Pavel Butsykin Committed by Kevin Wolf
Browse files

qcow2: fix iovec size at qcow2_co_pwritev_compressed 



Use bytes as the size would be more exact than s->cluster_size.  Although
qemu_iovec_to_buf() will not allow to go beyond the qiov.

Signed-off-by: default avatarPavel Butsykin <pbutsykin@virtuozzo.com>
Signed-off-by: default avatarKevin Wolf <kwolf@redhat.com>
parent 980e6621

block/qcow2.c

+1 −1
Original line number Diff line number Diff line
@@ -2565,7 +2565,7 @@ qcow2_co_pwritev_compressed(BlockDriverState *bs, uint64_t offset, 
        /* Zero-pad last write if image size is not cluster aligned */

        memset(buf + bytes, 0, s->cluster_size - bytes);

    }

    qemu_iovec_to_buf(qiov, 0, buf, s->cluster_size);

    qemu_iovec_to_buf(qiov, 0, buf, bytes);



    out_buf = g_malloc(s->cluster_size);