Alberto Garcia 4d6f8cbba7 commit: get the overlay node before manipulating the backing chain ... The 'block-commit' command has a 'top' parameter to specify the topmost node from which the data is going to be copied. [E] <- [D] <- [C] <- [B] <- [A] In this case if [C] is the top node then this is the result: [E] <- [B] <- [A] [B] must be modified so its backing image string points to [E] instead of [C]. commit_start() takes care of reopening [B] in read-write mode, and commit_complete() puts it back in read-only mode once the operation has finished. In order to find [B] (the overlay node) we look for the node that has [C] (the top node) as its backing image. However in commit_complete() we're doing it after [C] has been removed from the chain, so [B] is never found and remains in read-write mode. This patch gets the overlay node before the backing chain is manipulated. Signed-off-by: Alberto Garcia <berto@igalia.com> Message-id: 1471836963-28548-1-git-send-email-berto@igalia.com Signed-off-by: Max Reitz <mreitz@redhat.com>		2016-09-20 22:12:57 +02:00
..
accounting.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
archipelago.c	coccinelle: Remove unnecessary variables for function return value	2016-06-20 16:38:13 +02:00
backup.c	Backup: export interfaces for extra serialization	2016-09-13 11:00:56 +01:00
blkdebug.c	block/blkdebug: Store config filename	2016-08-15 15:52:28 +02:00
blkreplay.c	blkreplay: Switch .bdrv_co_discard() to byte-based	2016-07-20 14:11:55 +01:00
blkverify.c	block: Convert bdrv_aio_writev() to BdrvChild	2016-07-05 16:46:26 +02:00
block-backend.c	block: remove BlockDriver.bdrv_write_compressed	2016-09-05 19:06:48 +02:00
bochs.c	block: Convert bdrv_co_preadv/pwritev to BdrvChild	2016-07-05 16:46:27 +02:00
cloop.c	block: Convert bdrv_pread(v) to BdrvChild	2016-07-05 16:46:27 +02:00
commit.c	commit: get the overlay node before manipulating the backing chain	2016-09-20 22:12:57 +02:00
crypto.c	crypto: make PBKDF iterations configurable for LUKS format	2016-09-19 16:30:45 +01:00
curl.c	curl: Operate on zero-length file	2016-09-15 15:32:22 +03:00
dirty-bitmap.c	dirty-bitmap: operate with int64_t amount	2016-07-19 16:54:46 -04:00
dmg.c	block: Convert bdrv_pread(v) to BdrvChild	2016-07-05 16:46:27 +02:00
gluster.c	block/gluster: add support to choose libgfapi logfile	2016-09-13 01:34:47 -04:00
io.c	block/io: turn on dirty_bitmaps for the compressed writes	2016-09-05 19:06:48 +02:00
iscsi.c	blockdev: prepare iSCSI block driver for dynamic loading	2016-09-20 22:10:57 +02:00
linux-aio.c	linux-aio: process completions from ioq_submit()	2016-09-13 11:00:56 +01:00
Makefile.objs	blockdev: Modularize nfs block driver	2016-09-20 22:12:57 +02:00
mirror.c	mirror: auto complete active commit	2016-09-13 11:00:56 +01:00
nbd-client.c	nbd: Convert to byte-based interface	2016-07-20 14:24:25 +01:00
nbd-client.h	nbd: Limit nbdflags to 16 bits	2016-08-03 18:44:56 +02:00
nbd.c	block/nbd: Store runtime option values	2016-08-15 15:52:29 +02:00
nfs.c	coroutine: move entry argument to qemu_coroutine_create	2016-07-13 13:26:02 +02:00
null.c	block/null: Implement bdrv_refresh_filename()	2016-06-16 15:20:37 +02:00
parallels.c	block/parallels: check new image size	2016-08-05 09:59:06 +01:00
qapi.c	qapi: Add new visit_complete() function	2016-07-06 10:52:04 +02:00
qcow2-cache.c	block: Convert bdrv_pwrite(v/_sync) to BdrvChild	2016-07-05 16:46:27 +02:00
qcow2-cluster.c	qcow2: avoid memcpy(dst, NULL, len)	2016-09-13 11:00:55 +01:00
qcow2-refcount.c	block: Convert bdrv_discard() to byte-based	2016-07-20 14:11:55 +01:00
qcow2-snapshot.c	block: Convert bdrv_pwrite(v/_sync) to BdrvChild	2016-07-05 16:46:27 +02:00
qcow2.c	qcow2: avoid memcpy(dst, NULL, len)	2016-09-13 11:00:55 +01:00
qcow2.h	Remove unused function declarations	2016-09-15 15:32:22 +03:00
qcow.c	qcow: cleanup qcow_co_pwritev_compressed to avoid the recursion	2016-09-05 19:06:48 +02:00
qed-check.c	qed: Use DIV_ROUND_UP	2016-06-07 18:19:24 +03:00
qed-cluster.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
qed-gencb.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
qed-l2-cache.c	block: Clean up includes	2016-01-20 13:36:23 +01:00
qed-table.c	block: Convert bdrv_aio_writev() to BdrvChild	2016-07-05 16:46:26 +02:00
qed.c	coroutine: move entry argument to qemu_coroutine_create	2016-07-13 13:26:02 +02:00
qed.h	util: move declarations out of qemu-common.h	2016-03-22 22:20:17 +01:00
quorum.c	block: Convert bdrv_aio_writev() to BdrvChild	2016-07-05 16:46:26 +02:00
raw_bsd.c	raw_bsd: Convert to byte-based interface	2016-07-20 14:24:25 +01:00
raw-posix.c	block: Convert .bdrv_aio_discard() to byte-based	2016-07-20 14:11:55 +01:00
raw-win32.c	raw-posix: Switch paio_submit() to byte-based	2016-07-20 14:11:55 +01:00
rbd.c	block: Convert .bdrv_aio_discard() to byte-based	2016-07-20 14:11:55 +01:00
replication.c	replication: Implement new driver for block replication	2016-09-13 11:00:56 +01:00
sheepdog.c	sheepdog: remove useless casts	2016-09-15 15:32:22 +03:00
snapshot.c	error: Remove NULL checks on error_propagate() calls	2016-06-20 16:38:13 +02:00
ssh.c	block/ssh: Use QemuOpts for runtime options	2016-08-15 15:52:28 +02:00
stream.c	Improve block job rate limiting for small bandwidth values	2016-07-13 13:41:38 +02:00
throttle-groups.c	block: Move I/O throttling configuration functions to BlockBackend	2016-05-19 16:45:30 +02:00
trace-events	trace-events: fix first line comment in trace-events	2016-08-12 10:36:01 +01:00
vdi.c	block: Convert bdrv_co_preadv/pwritev to BdrvChild	2016-07-05 16:46:27 +02:00
vhdx-endian.c	qemu-common: stop including qemu/bswap.h from qemu-common.h	2016-05-19 16:42:28 +02:00
vhdx-log.c	block: Convert bdrv_pwrite(v/_sync) to BdrvChild	2016-07-05 16:46:27 +02:00
vhdx.c	block: Convert bdrv_pwrite(v/_sync) to BdrvChild	2016-07-05 16:46:27 +02:00
vhdx.h	block: vhdx - update PAYLOAD_BLOCK_UNMAPPED value to match 1.00 spec	2014-12-12 15:42:22 +00:00
vmdk.c	vmdk: add vmdk_co_pwritev_compressed	2016-09-05 19:06:48 +02:00
vpc.c	block: Convert bdrv_co_preadv/pwritev to BdrvChild	2016-07-05 16:46:27 +02:00
vvfat.c	vvfat: Fix qcow write target driver specification	2016-07-13 13:41:39 +02:00
win32-aio.c	linux-aio: share one LinuxAioState within an AioContext	2016-07-18 15:09:31 +01:00
write-threshold.c	block: Clean up includes	2016-01-20 13:36:23 +01:00