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linux-stable/fs/btrfs
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Josef Bacik 3b5a4a18a7 btrfs: do not delete mismatched root refs 
commit 423a716cd7 upstream.

btrfs_del_root_ref() will simply WARN_ON() if the ref doesn't match in
any way, and then continue to delete the reference.  This shouldn't
happen, we have these values because there's more to the reference than
the original root and the sub root.  If any of these checks fail, return
-ENOENT.

CC: stable@vger.kernel.org # 4.4+
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-23 08:21:31 +01:00
..
tests btrfs: return error pointer from alloc_test_extent_buffer 2019-12-31 16:36:20 +01:00
acl.c Btrfs: setup a nofs context for memory allocation at __btrfs_set_acl 2019-03-23 20:10:00 +01:00
async-thread.c btrfs: don't prematurely free work in run_ordered_work() 2019-12-31 16:36:05 +01:00
async-thread.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
backref.c Btrfs: fix deadlock between fiemap and transaction commits 2019-08-25 10:47:54 +02:00
backref.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
btrfs_inode.h btrfs: use tagged writepage to mitigate livelock of snapshot 2019-02-12 19:47:11 +01:00
check-integrity.c btrfs: open-code bio_set_op_attrs 2018-08-06 13:12:44 +02:00
check-integrity.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
compression.c btrfs: correctly validate compression type 2019-09-16 08:22:19 +02:00
compression.h btrfs: correctly validate compression type 2019-09-16 08:22:19 +02:00
ctree.c Btrfs: fix removal logic of the tree mod log that leads to use-after-free issues 2019-12-31 16:34:44 +01:00
ctree.h Btrfs: fix missing data checksums after replaying a log tree 2019-12-31 16:34:42 +01:00
dedupe.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
delayed-inode.c btrfs: use refcount_inc_not_zero in kill_all_nodes 2019-12-17 20:34:46 +01:00
delayed-inode.h btrfs: Remove fs_info from btrfs_delete_delayed_dir_index 2018-08-06 13:13:00 +02:00
delayed-ref.c btrfs: only track ref_heads in delayed_ref_updates 2019-12-05 09:20:23 +01:00
delayed-ref.h btrfs: Remove fs_info from btrfs_add_delayed_data_ref 2018-08-06 13:12:34 +02:00
dev-replace.c btrfs: dev-replace: set result code of cancel by status of scrub 2019-12-05 09:20:21 +01:00
dev-replace.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
dir-item.c btrfs: Remove fs_info from btrfs_insert_delayed_dir_index 2018-08-06 13:13:00 +02:00
disk-io.c btrfs: don't prematurely free work in end_workqueue_fn() 2019-12-31 16:36:04 +01:00
disk-io.h btrfs: Check the first key and level for cached extent buffer 2019-05-22 07:37:42 +02:00
export.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
export.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
extent-tree.c Btrfs: fix missing data checksums after replaying a log tree 2019-12-31 16:34:42 +01:00
extent_io.c btrfs: return error pointer from alloc_test_extent_buffer 2019-12-31 16:36:20 +01:00
extent_io.h Btrfs: allow clear_extent_dirty() to receive a cached extent state record 2019-12-05 09:20:22 +01:00
extent_map.c btrfs: use fs_info for btrfs_handle_em_exist tracepoint 2018-05-28 18:07:17 +02:00
extent_map.h btrfs: use fs_info for btrfs_handle_em_exist tracepoint 2018-05-28 18:07:17 +02:00
file-item.c Btrfs: fix missing data checksums after replaying a log tree 2019-12-31 16:34:42 +01:00
file.c btrfs: simplify inode locking for RWF_NOWAIT 2020-01-17 19:47:02 +01:00
free-space-cache.c btrfs: check page->mapping when loading free space cache 2019-12-17 20:34:45 +01:00
free-space-cache.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
free-space-tree.c btrfs: Remove fs_info from btrfs_del_root 2018-08-06 13:13:00 +02:00
free-space-tree.h btrfs: Remove fs_info argument from add_to_free_space_tree 2018-05-28 18:07:36 +02:00
inode-item.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
inode-map.c btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents() 2019-11-06 13:05:13 +01:00
inode-map.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
inode.c btrfs: fix invalid removal of root ref 2020-01-23 08:21:31 +01:00
ioctl.c btrfs: abort transaction after failed inode updates in create_subvol 2019-12-31 16:34:43 +01:00
Kconfig btrfs: add SPDX header to Kconfig 2018-04-12 16:29:55 +02:00
locking.c btrfs: replace waitqueue_actvie with cond_wake_up 2018-05-28 18:23:09 +02:00
locking.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
lzo.c btrfs: lzo: Harden inline lzo compressed extent decompression 2018-05-30 16:46:43 +02:00
Makefile btrfs: Remove custom crc32c init code 2018-03-26 15:09:39 +02:00
math.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
ordered-data.c btrfs: prune unused includes 2018-08-06 13:12:43 +02:00
ordered-data.h btrfs: remove remaing full_sync logic from btrfs_sync_file 2018-08-06 13:12:31 +02:00
orphan.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
print-tree.c btrfs: annotate unlikely branches after V0 extent type removal 2018-08-06 13:12:41 +02:00
print-tree.h btrfs: print-tree: debugging output enhancement 2018-04-20 19:18:16 +02:00
props.c btrfs: correctly validate compression type 2019-09-16 08:22:19 +02:00
props.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
qgroup.c btrfs: Fix error messages in qgroup_rescan_init 2020-01-12 12:17:14 +01:00
qgroup.h btrfs: qgroup: Avoid calling qgroup functions if qgroup is not enabled 2018-11-13 11:08:56 -08:00
raid56.c btrfs: raid56: properly unmap parity page in finish_parity_scrub() 2019-04-03 06:26:21 +02:00
raid56.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
rcu-string.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
reada.c btrfs: don't prematurely free work in reada_start_machine_worker() 2019-12-31 16:36:16 +01:00
ref-verify.c btrfs: fix uninitialized ret in ref-verify 2019-10-17 13:45:27 -07:00
ref-verify.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
relocation.c btrfs: do not leak reloc root if we fail to read the fs root 2019-12-31 16:34:43 +01:00
root-tree.c btrfs: do not delete mismatched root refs 2020-01-23 08:21:31 +01:00
scrub.c btrfs: don't prematurely free work in scrub_missing_raid56_worker() 2019-12-31 16:36:16 +01:00
send.c btrfs: send: remove WARN_ON for readonly mount 2019-12-31 16:34:42 +01:00
send.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
struct-funcs.c btrfs: prune unused includes 2018-08-06 13:12:43 +02:00
super.c btrfs: avoid link error with CONFIG_NO_AUTO_INLINE 2019-12-01 09:17:19 +01:00
sysfs.c btrfs: sysfs: don't leak memory when failing add fsid 2019-05-31 06:46:02 -07:00
sysfs.h btrfs: sysfs: Use enum/define value for feature array definitions 2018-05-28 18:23:39 +02:00
transaction.c Btrfs: fix deadlock between fiemap and transaction commits 2019-08-25 10:47:54 +02:00
transaction.h Btrfs: fix deadlock between fiemap and transaction commits 2019-08-25 10:47:54 +02:00
tree-checker.c btrfs: tree-checker: Don't check max block group size as current max chunk size limit is unreliable 2018-12-08 12:59:10 +01:00
tree-checker.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
tree-defrag.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
tree-log.c btrfs: skip log replay on orphaned roots 2019-12-31 16:34:43 +01:00
tree-log.h Btrfs: sync log after logging new name 2018-08-23 17:37:26 +02:00
ulist.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
ulist.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
uuid-tree.c btrfs: handle ENOENT in btrfs_uuid_tree_iterate 2019-12-31 16:34:44 +01:00
volumes.c btrfs: fix ncopies raid_attr for RAID56 2019-12-05 09:20:21 +01:00
volumes.h btrfs: Remove btrfs_bio::flags member 2019-12-17 20:34:48 +01:00
xattr.c Btrfs: use nofs context when initializing security xattrs to avoid deadlock 2019-01-16 22:04:37 +01:00
xattr.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
zlib.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
zstd.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00