qemu/block
Asias He 0d51b4debe block: Introduce bs->zero_beyond_eof
In 4146b46c42e0989cb5842e04d88ab6ccb1713a48 (block: Produce zeros when
protocols reading beyond end of file), we break qemu-iotests ./check
-qcow2 022. This happens because qcow2 temporarily sets ->growable = 1
for vmstate accesses (which are stored beyond the end of regular image
data).

We introduce the bs->zero_beyond_eof to allow qcow2_load_vmstate() to
disable ->zero_beyond_eof temporarily in addition to enable ->growable.

[Since the broken patch "block: Produce zeros when protocols reading
beyond end of file" has not been merged yet, I have applied this fix
*first* and will then apply the next patch to keep the tree bisectable.
-- Stefan]

Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 14:10:21 +02:00
..
backup.c
blkdebug.c
blkverify.c
bochs.c
cloop.c
commit.c
cow.c
curl.c
dmg.c
gluster.c
iscsi.c
linux-aio.c
Makefile.objs
mirror.c
nbd.c
parallels.c
qapi.c
qcow.c
qcow2-cache.c
qcow2-cluster.c
qcow2-refcount.c
qcow2-snapshot.c
qcow2.c
qcow2.h
qed-check.c
qed-cluster.c
qed-gencb.c
qed-l2-cache.c
qed-table.c
qed.c
qed.h
raw-aio.h
raw-posix.c
raw-win32.c
raw.c
rbd.c
sheepdog.c
snapshot.c
ssh.c
stream.c
vdi.c
vhdx.c
vhdx.h
vmdk.c
vpc.c
vvfat.c
win32-aio.c