Max Reitz 705dde27c6 backup-top: Refuse I/O in inactive state ... When the backup-top node transitions from active to inactive in bdrv_backup_top_drop(), the BlockCopyState is freed and the filtered child is removed, so the node effectively becomes unusable. However, noone told its I/O functions this, so they will happily continue accessing bs->backing and s->bcs. Prevent that by aborting early when s->active is false. (After the preceding patch, the node should be gone after bdrv_backup_top_drop(), so this should largely be a theoretical problem. But still, better to be safe than sorry, and also I think it just makes sense to check s->active in the I/O functions.) Signed-off-by: Max Reitz <mreitz@redhat.com> Message-Id: <20210219153348.41861-3-mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>		2021-03-08 14:55:18 +01:00
..
export	qapi: Use QAPI_LIST_APPEND in trivial cases	2021-01-28 08:08:45 +01:00
monitor	block: rename and alter bdrv_all_find_snapshot semantics	2021-02-08 11:19:51 +00:00
accounting.c	block/accounting: Use lock guard macros	2020-12-11 17:52:39 +01:00
aio_task.c
amend.c
backup-top.c	backup-top: Refuse I/O in inactive state	2021-03-08 14:55:18 +01:00
backup-top.h	qapi: backup: add perf.use-copy-range parameter	2021-01-26 14:36:37 +01:00
backup.c	backup: Remove nodes from job in .clean()	2021-03-08 14:55:18 +01:00
blkdebug.c
blklogwrites.c
blkreplay.c
blkverify.c	block/io: support int64_t bytes in read/write wrappers	2021-02-03 08:17:12 -06:00
block-backend.c	block: Separate blk_is_writable() and blk_supports_write_perm()	2021-01-27 20:45:20 +01:00
block-copy.c	block/block-copy: drop unused argument of block_copy()	2021-01-26 14:36:37 +01:00
block-gen.h
bochs.c
cloop.c
commit.c	block: use return status of bdrv_append()	2021-02-12 15:39:44 -06:00
copy-on-read.c	copy-on-read: skip non-guest reads if no copy needed	2021-01-26 14:36:37 +01:00
copy-on-read.h	copy-on-read: add filter drop function	2021-01-26 11:26:54 +01:00
coroutines.h
create.c
crypto.c	block: add bdrv_co_delete_file_noerr	2021-02-15 15:10:14 +01:00
crypto.h
curl.c	curl: remove compatibility code, require 7.29.0	2021-01-02 21:03:37 +01:00
dirty-bitmap.c	qapi: Use QAPI_LIST_APPEND in trivial cases	2021-01-28 08:08:45 +01:00
dmg-bz2.c
dmg-lzfse.c
dmg.c
dmg.h
file-posix.c	block: refactor bdrv_check_request: add errp	2021-02-03 08:00:33 -06:00
file-win32.c
filter-compress.c
gluster.c	qapi: More complex uses of QAPI_LIST_APPEND	2021-01-28 08:08:45 +01:00
io_uring.c
io.c	block: add new BlockDriver handler: bdrv_cancel_in_flight	2021-02-12 09:45:18 -06:00
iscsi-opts.c
iscsi.c	Remove superfluous timer_del() calls	2021-01-08 15:13:38 +00:00
linux-aio.c
meson.build	meson: Propagate gnutls dependency	2021-01-12 12:38:03 +01:00
mirror.c	bitmaps patches for 2021-02-12	2021-02-13 21:26:00 +00:00
nbd.c	block/nbd: implement .bdrv_cancel_in_flight	2021-02-12 09:45:18 -06:00
nfs.c	block/nfs: fix int overflow in nfs_client_open_qdict	2020-12-18 11:48:39 +01:00
null.c
nvme.c	block/nvme: Trace NVMe spec version supported by the controller	2021-02-02 17:05:38 +01:00
parallels.c
parallels.h
preallocate.c	block: introduce preallocate filter	2020-12-18 12:35:55 +01:00
qapi-sysemu.c
qapi.c	block: Fix VM size column width in bdrv_snapshot_dump()	2021-02-02 17:23:55 +01:00
qcow2-bitmap.c	qapi: Use QAPI_LIST_APPEND in trivial cases	2021-01-28 08:08:45 +01:00
qcow2-cache.c
qcow2-cluster.c	qcow2: Fix corruption on write_zeroes with MAY_UNMAP	2020-11-24 11:29:41 +01:00
qcow2-refcount.c
qcow2-snapshot.c
qcow2-threads.c
qcow2.c	block: qcow2: remove the created file on initialization error	2021-02-15 15:10:14 +01:00
qcow2.h
qcow.c
qed-check.c
qed-cluster.c
qed-l2-cache.c
qed-table.c
qed.c
qed.h
quorum.c	quorum: Implement bdrv_co_pwrite_zeroes()	2020-12-18 12:35:55 +01:00
raw-format.c	block/raw-format: implement .bdrv_cancel_in_flight handler	2021-02-12 09:45:18 -06:00
rbd.c	qobject: Change qobject_to_json()'s value to GString	2020-12-19 10:38:43 +01:00
replication.c	qapi: backup: add max-chunk and max-workers to x-perf struct	2021-01-26 14:36:37 +01:00
sheepdog.c
snapshot.c	block: rename and alter bdrv_all_find_snapshot semantics	2021-02-08 11:19:51 +00:00
ssh.c
stream.c	block: apply COR-filter to block-stream jobs	2021-01-26 14:36:37 +01:00
throttle-groups.c	block/throttle-groups: throttle_group_co_io_limits_intercept(): 64bit bytes	2021-02-03 08:14:00 -06:00
throttle.c
trace-events	block/io: use int64_t bytes in copy_range	2021-02-03 08:17:12 -06:00
trace.h
vdi.c
vhdx-endian.c
vhdx-log.c
vhdx.c
vhdx.h
vmdk.c	qapi: Use QAPI_LIST_APPEND in trivial cases	2021-01-28 08:08:45 +01:00
vpc.c	block/vpc: Use sizeof() instead of HEADER_SIZE for footer size	2020-12-18 12:43:30 +01:00
vvfat.c
win32-aio.c
write-threshold.c