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Josef Bacik cab5f4c6fd btrfs: record all roots for rename exchange on a subvol 
commit 3e1740993e upstream.

Testing with the new fsstress support for subvolumes uncovered a pretty
bad problem with rename exchange on subvolumes.  We're modifying two
different subvolumes, but we only start the transaction on one of them,
so the other one is not added to the dirty root list.  This is caught by
btrfs_cow_block() with a warning because the root has not been updated,
however if we do not modify this root again we'll end up pointing at an
invalid root because the root item is never updated.

Fix this by making sure we add the destination root to the trans list,
the same as we do with normal renames.  This fixes the corruption.

Fixes: cdd1fedf82 ("btrfs: add support for RENAME_EXCHANGE and RENAME_WHITEOUT")
CC: stable@vger.kernel.org # 4.9+
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Josef Bacik <josef@toxicpanda.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2019-12-17 19:56:07 +01:00
..
tests Btrfs: fix selftests failure due to uninitialized i_mode in test inodes 2019-09-24 14:45:02 +02:00
Kconfig
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Makefile btrfs: migrate the block group lookup code 2019-09-09 14:59:04 +02:00
acl.c
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async-thread.c btrfs: async-thread: convert defines to enums 2019-09-09 14:59:03 +02:00
async-thread.h
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backref.c
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backref.h
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block-group.c btrfs: use btrfs_block_group_cache_done in update_block_group 2019-12-17 19:56:02 +01:00
block-group.h btrfs: move struct io_ctl to free-space-cache.h 2019-09-09 14:59:15 +02:00
block-rsv.c btrfs: use btrfs_try_granting_tickets in update_global_rsv 2019-09-09 14:59:19 +02:00
block-rsv.h
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btrfs_inode.h
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check-integrity.c btrfs: reduce stack usage for btrfsic_process_written_block 2019-09-09 14:58:58 +02:00
check-integrity.h
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compression.c btrfs: move cond_wake_up functions out of ctree 2019-09-09 14:59:15 +02:00
compression.h btrfs: compression: replace set_level callbacks by a common helper 2019-09-09 14:59:11 +02:00
ctree.c btrfs: Don't assign retval of btrfs_try_tree_write_lock/btrfs_tree_read_lock_atomic 2019-09-09 14:59:20 +02:00
ctree.h btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents() 2019-10-15 18:50:07 +02:00
delalloc-space.c Btrfs: fix qgroup double free after failure to reserve metadata for delalloc 2019-10-17 20:13:44 +02:00
delalloc-space.h
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delayed-inode.c btrfs: use refcount_inc_not_zero in kill_all_nodes 2019-12-17 19:56:03 +01:00
delayed-inode.h
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delayed-ref.c btrfs: rename btrfs_space_info_add_old_bytes 2019-09-09 14:59:18 +02:00
delayed-ref.h
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dev-replace.c btrfs: move cond_wake_up functions out of ctree 2019-09-09 14:59:15 +02:00
dev-replace.h
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dir-item.c
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disk-io.c btrfs: don't needlessly create extent-refs kernel thread 2019-10-15 15:43:29 +02:00
disk-io.h btrfs: Make reada_tree_block_flagged private 2019-09-09 14:59:11 +02:00
export.c
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export.h
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extent-tree.c btrfs: refactor the ticket wakeup code 2019-09-09 14:59:18 +02:00
extent_io.c btrfs: Avoid getting stuck during cyclic writebacks 2019-12-17 19:56:06 +01:00
extent_io.h btrfs: Remove delalloc_end argument from extent_clear_unlock_delalloc 2019-09-09 14:58:59 +02:00
extent_map.c btrfs: assert extent map tree lock in add_extent_mapping 2019-09-09 14:59:00 +02:00
extent_map.h
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file-item.c
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file.c Btrfs: fix negative subv_writers counter and data space leak after buffered write 2019-12-17 19:56:05 +01:00
free-space-cache.c btrfs: check page->mapping when loading free space cache 2019-12-17 19:56:02 +01:00
free-space-cache.h btrfs: move struct io_ctl to free-space-cache.h 2019-09-09 14:59:15 +02:00
free-space-tree.c btrfs: move basic block_group definitions to their own header 2019-09-09 14:59:03 +02:00
free-space-tree.h btrfs: move basic block_group definitions to their own header 2019-09-09 14:59:03 +02:00
inode-item.c btrfs: Make btrfs_find_name_in_ext_backref return struct btrfs_inode_extref 2019-09-09 14:59:16 +02:00
inode-map.c btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents() 2019-10-15 18:50:07 +02:00
inode-map.h
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inode.c btrfs: record all roots for rename exchange on a subvol 2019-12-17 19:56:07 +01:00
ioctl.c btrfs: un-deprecate ioctls START_SYNC and WAIT_SYNC 2019-11-04 21:42:01 +01:00
locking.c btrfs: move cond_wake_up functions out of ctree 2019-09-09 14:59:15 +02:00
locking.h btrfs: Remove unused locking functions 2019-09-09 14:58:59 +02:00
lzo.c btrfs: compression: replace set_level callbacks by a common helper 2019-09-09 14:59:11 +02:00
misc.h btrfs: move math functions to misc.h 2019-09-09 14:59:15 +02:00
ordered-data.c btrfs: move cond_wake_up functions out of ctree 2019-09-09 14:59:15 +02:00
ordered-data.h
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orphan.c
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print-tree.c
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print-tree.h
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props.c btrfs: rename the btrfs_calc_*_metadata_size helpers 2019-09-09 14:59:13 +02:00
props.h
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qgroup.c btrfs: tracepoints: Fix wrong parameter order for qgroup events 2019-10-17 14:09:31 +02:00
qgroup.h
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raid56.c btrfs: move private raid56 definitions from ctree.h 2019-09-09 14:59:15 +02:00
raid56.h
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rcu-string.h
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reada.c btrfs: Make reada_tree_block_flagged private 2019-09-09 14:59:11 +02:00
ref-verify.c btrfs: fix uninitialized ret in ref-verify 2019-10-03 15:00:56 +02:00
ref-verify.h
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relocation.c btrfs: qgroup: Always free PREALLOC META reserve in btrfs_delalloc_release_extents() 2019-10-15 18:50:07 +02:00
root-tree.c btrfs: rename the btrfs_calc_*_metadata_size helpers 2019-09-09 14:59:13 +02:00
scrub.c btrfs: move basic block_group definitions to their own header 2019-09-09 14:59:03 +02:00
send.c Btrfs: send, skip backreference walking for extents with many references 2019-12-17 19:56:07 +01:00
send.h
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space-info.c Btrfs: fix race leading to metadata space leak after task received signal 2019-10-25 19:11:34 +02:00
space-info.h btrfs: rename btrfs_space_info_add_old_bytes 2019-09-09 14:59:18 +02:00
struct-funcs.c btrfs: tie extent buffer and it's token together 2019-09-09 14:59:16 +02:00
super.c btrfs: move sysfs declarations out of ctree.h 2019-09-09 14:59:06 +02:00
sysfs.c btrfs: sysfs: move helper macros to sysfs.c 2019-09-09 14:59:08 +02:00
sysfs.h btrfs: sysfs: move helper macros to sysfs.c 2019-09-09 14:59:08 +02:00
transaction.c btrfs: move cond_wake_up functions out of ctree 2019-09-09 14:59:15 +02:00
transaction.h
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tree-checker.c btrfs: tree-checker: Fix wrong check on max devid 2019-10-25 19:11:34 +02:00
tree-checker.h
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tree-defrag.c
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tree-log.c for-5.4-rc2-tag 2019-10-10 08:30:51 -07:00
tree-log.h
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ulist.c
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ulist.h
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uuid-tree.c
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volumes.c btrfs: Consider system chunk array size for new SYSTEM chunks 2019-10-25 19:11:34 +02:00
volumes.h btrfs: Remove btrfs_bio::flags member 2019-12-17 19:56:06 +01:00
xattr.c
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xattr.h
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zlib.c btrfs: compression: replace set_level callbacks by a common helper 2019-09-09 14:59:11 +02:00
zstd.c btrfs: move cond_wake_up functions out of ctree 2019-09-09 14:59:15 +02:00