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charset="utf-8" The caches are now recalculated upon image resizing. This is done because the new default behavior of assigning L2 cache relatively to the image size, implies that the cache will be adapted accordingly after an image resize. Signed-off-by: Leonid Bloch Reviewed-by: Alberto Garcia --- block/qcow2.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/block/qcow2.c b/block/qcow2.c index 434fb89076..ba4dfae735 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -3418,6 +3418,7 @@ static int coroutine_fn qcow2_co_truncate(BlockDriver= State *bs, int64_t offset, uint64_t old_length; int64_t new_l1_size; int ret; + QDict *options; =20 if (prealloc !=3D PREALLOC_MODE_OFF && prealloc !=3D PREALLOC_MODE_MET= ADATA && prealloc !=3D PREALLOC_MODE_FALLOC && prealloc !=3D PREALLOC_MODE_= FULL) @@ -3642,6 +3643,8 @@ static int coroutine_fn qcow2_co_truncate(BlockDriver= State *bs, int64_t offset, } } =20 + bs->total_sectors =3D offset / BDRV_SECTOR_SIZE; + /* write updated header.size */ offset =3D cpu_to_be64(offset); ret =3D bdrv_pwrite_sync(bs->file, offsetof(QCowHeader, size), @@ -3652,6 +3655,13 @@ static int coroutine_fn qcow2_co_truncate(BlockDrive= rState *bs, int64_t offset, } =20 s->l1_vm_state_index =3D new_l1_size; + + /* Update cache sizes */ + options =3D qdict_clone_shallow(bs->options); + ret =3D qcow2_update_options(bs, options, s->flags, errp); + if (ret < 0) { + goto fail; + } ret =3D 0; fail: qemu_co_mutex_unlock(&s->lock); --=20 2.17.1