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Vladimir Sementsov-Ogievskiy 18775ff326 block/mirror: check backing in bdrv_mirror_top_refresh_filename 
Backing may be zero after failed bdrv_attach_child in
bdrv_set_backing_hd, which leads to SIGSEGV.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20170928120300.58164-1-vsementsov@virtuozzo.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
 		2017-10-06 16:30:47 +02:00
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Makefile.objs block: add throttle block filter driver 2017-09-06 10:12:02 +02:00
accounting.c
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backup.c dirty-bitmap: Change bdrv_dirty_iter_next() to report byte offset 2017-10-06 16:28:58 +02:00
blkdebug.c block: add default implementations for bdrv_co_get_block_status() 2017-09-04 18:31:13 +02:00
blkreplay.c
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blkverify.c
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block-backend.c block: tidy ThrottleGroupMember initializations 2017-09-05 16:47:52 +02:00
bochs.c
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cloop.c
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commit.c commit: Remove overlay_bs 2017-10-06 16:28:58 +02:00
crypto.c block: support passthrough of BDRV_REQ_FUA in crypto driver 2017-10-06 16:30:47 +02:00
crypto.h
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curl.c
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dirty-bitmap.c dirty-bitmap: Convert internal hbitmap size/granularity 2017-10-06 16:28:58 +02:00
dmg-bz2.c
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dmg.c
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dmg.h
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file-posix.c file-posix: Clear out first sector in hdev_create 2017-09-26 14:46:23 +02:00
file-win32.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
gluster.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
io.c block: Perform copy-on-read in loop 2017-10-06 16:28:58 +02:00
iscsi-opts.c
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iscsi.c scsi: move block/scsi.h to include/scsi/constants.h 2017-09-19 14:09:31 +02:00
linux-aio.c
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mirror.c block/mirror: check backing in bdrv_mirror_top_refresh_filename 2017-10-06 16:30:47 +02:00
nbd-client.c block/nbd-client: nbd_co_send_request: fix return code 2017-09-25 08:21:26 -05:00
nbd-client.h
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nbd.c
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nfs.c qapi: Mechanically convert FOO_lookup[...] to FOO_str(...) 2017-09-04 13:09:13 +02:00
null.c
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parallels.c qapi: drop the sentinel in enum array 2017-09-04 13:09:13 +02:00
qapi.c block: move ThrottleGroup membership to ThrottleGroupMember 2017-09-05 16:47:51 +02:00
qcow.c block: convert qcrypto_block_encrypt|decrypt to take bytes offset 2017-10-06 16:30:47 +02:00
qcow2-bitmap.c qcow2: Switch store_bitmap_data() to byte-based iteration 2017-10-06 16:28:58 +02:00
qcow2-cache.c qcow2: add qcow2_cache_discard 2017-09-26 15:00:32 +02:00
qcow2-cluster.c block: convert qcrypto_block_encrypt|decrypt to take bytes offset 2017-10-06 16:30:47 +02:00
qcow2-refcount.c qcow2: add shrink image support 2017-09-26 15:00:32 +02:00
qcow2-snapshot.c
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qcow2.c block: convert qcrypto_block_encrypt|decrypt to take bytes offset 2017-10-06 16:30:47 +02:00
qcow2.h qcow2: add shrink image support 2017-09-26 15:00:32 +02:00
qed-check.c
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qed-cluster.c
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qed-l2-cache.c
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qed-table.c
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qed.c qapi: Mechanically convert FOO_lookup[...] to FOO_str(...) 2017-09-04 13:09:13 +02:00
qed.h
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quorum.c qapi: Change data type of the FOO_lookup generated for enum FOO 2017-09-04 13:09:13 +02:00
raw-format.c block: remove unused bdrv_media_changed 2017-09-04 18:31:13 +02:00
rbd.c qapi: Mechanically convert FOO_lookup[...] to FOO_str(...) 2017-09-04 13:09:13 +02:00
replication.c block: Add reopen_queue to bdrv_child_perm() 2017-09-26 14:46:23 +02:00
sheepdog.c Merge QEMU I/O 2017/09/05 v2 2017-09-05 14:14:33 +01:00
snapshot.c
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ssh.c util: remove the obsolete non-blocking connect 2017-09-05 13:21:58 +01:00
stream.c
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throttle-groups.c block/throttle-groups.c: allocate RestartData on the heap 2017-09-26 14:46:23 +02:00
throttle.c block: add throttle block filter driver 2017-09-06 10:12:02 +02:00
trace-events
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vdi.c
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vhdx-endian.c
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vhdx-log.c
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vhdx.c
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vhdx.h
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vmdk.c
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vpc.c
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vvfat.c block: Add reopen_queue to bdrv_child_perm() 2017-09-26 14:46:23 +02:00
vxhs.c
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win32-aio.c
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write-threshold.c
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