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linux-stable/fs/btrfs
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Boris Burkov 585c5732ca btrfs: qgroup: convert PREALLOC to PERTRANS after record_root_in_trans 
commit 211de93367 upstream.

The transaction is only able to free PERTRANS reservations for a root
once that root has been recorded with the TRANS tag on the roots radix
tree. Therefore, until we are sure that this root will get tagged, it
isn't safe to convert. Generally, this is not an issue as *some*
transaction will likely tag the root before long and this reservation
will get freed in that transaction, but technically it could stick
around until unmount and result in a warning about leaked metadata
reservation space.

This path is most exercised by running the generic/269 fstest with
CONFIG_BTRFS_DEBUG.

Fixes: a649684967 ("btrfs: fix start transaction qgroup rsv double free")
CC: stable@vger.kernel.org # 6.6+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Boris Burkov <boris@bur.io>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2024-04-17 11:19:33 +02:00
..
tests btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
Kconfig MAINTAINERS: remove links to obsolete btrfs.wiki.kernel.org 2023-09-08 14:21:27 +02:00
Makefile
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accessors.c
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accessors.h btrfs: use helper sizeof_field in struct accessors 2023-08-21 14:52:13 +02:00
acl.c
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acl.h
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async-thread.c
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async-thread.h
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backref.c btrfs: fix unwritten extent buffer after snapshotting a new subvolume 2023-10-23 17:17:30 +02:00
backref.h btrfs: fix unwritten extent buffer after snapshotting a new subvolume 2023-10-23 17:17:30 +02:00
bio.c
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bio.h
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block-group.c btrfs: zoned: don't skip block groups with 100% zone unusable 2024-04-03 15:28:54 +02:00
block-group.h btrfs: add and use helper to check if block group is used 2024-02-23 09:24:47 +01:00
block-rsv.c btrfs: fix data race at btrfs_use_block_rsv() when accessing block reserve 2024-03-26 18:19:13 -04:00
block-rsv.h btrfs: fix data race at btrfs_use_block_rsv() when accessing block reserve 2024-03-26 18:19:13 -04:00
btrfs_inode.h btrfs: reduce the number of arguments to btrfs_run_delalloc_range 2023-08-21 14:52:14 +02:00
check-integrity.c
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check-integrity.h
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compression.c
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compression.h
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ctree.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
ctree.h btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
defrag.c btrfs: defrag: avoid unnecessary defrag caused by incorrect extent size 2024-03-01 13:34:58 +01:00
defrag.h
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delalloc-space.c btrfs: don't reserve space for checksums when writing to nocow files 2024-02-23 09:24:48 +01:00
delalloc-space.h
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delayed-inode.c btrfs: record delayed inode root in transaction 2024-04-17 11:19:33 +02:00
delayed-inode.h btrfs: add __counted_by for struct btrfs_delayed_item and use struct_size() 2023-10-11 11:37:19 +02:00
delayed-ref.c btrfs: prevent transaction block reserve underflow when starting transaction 2023-09-20 20:42:18 +02:00
delayed-ref.h btrfs: prevent transaction block reserve underflow when starting transaction 2023-09-20 20:42:18 +02:00
dev-replace.c btrfs: dev-replace: properly validate device names 2024-03-06 14:48:40 +00:00
dev-replace.h
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dir-item.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
dir-item.h
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discard.c
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discard.h
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disk-io.c btrfs: fix double free of anonymous device after snapshot creation failure 2024-03-06 14:48:40 +00:00
disk-io.h btrfs: fix double free of anonymous device after snapshot creation failure 2024-03-06 14:48:40 +00:00
export.c btrfs: export: handle invalid inode or root reference in btrfs_get_parent() 2024-04-13 13:07:32 +02:00
export.h
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extent-io-tree.c btrfs: make find_first_extent_bit() return a boolean 2023-08-21 14:52:12 +02:00
extent-io-tree.h btrfs: make find_first_extent_bit() return a boolean 2023-08-21 14:52:12 +02:00
extent-tree.c btrfs: zoned: optimize hint byte for zoned allocator 2024-01-31 16:19:10 -08:00
extent-tree.h btrfs: wait on uncached block groups on every allocation loop 2023-08-21 14:54:47 +02:00
extent_io.c btrfs: fix race when detecting delalloc ranges during fiemap 2024-04-10 16:35:46 +02:00
extent_io.h btrfs: zoned: introduce block group context to btrfs_eb_write_context 2023-08-21 14:52:19 +02:00
extent_map.c btrfs: fix incorrect splitting in btrfs_drop_extent_map_range 2023-08-18 14:38:10 +02:00
extent_map.h
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file-item.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
file-item.h btrfs: scrub: avoid unnecessary csum tree search preparing stripes 2023-08-21 14:54:48 +02:00
file.c btrfs: fix qgroup_free_reserved_data int overflow 2023-12-20 17:02:03 +01:00
file.h
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free-space-cache.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
free-space-cache.h
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free-space-tree.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
free-space-tree.h
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fs.c
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fs.h btrfs: zoned: activate metadata block group on write time 2023-08-21 14:52:19 +02:00
inode-item.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
inode-item.h
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inode.c btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-04-17 11:19:33 +02:00
ioctl.c btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-04-17 11:19:33 +02:00
ioctl.h
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locking.c
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locking.h btrfs: do not block starts waiting on previous transaction commit 2023-09-08 14:10:49 +02:00
lru_cache.c
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lru_cache.h
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lzo.c
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messages.c btrfs: remove v0 extent handling 2023-08-21 14:54:48 +02:00
messages.h btrfs: remove v0 extent handling 2023-08-21 14:54:48 +02:00
misc.h minmax: add in_range() macro 2023-08-24 16:20:18 -07:00
ordered-data.c btrfs: fix qgroup_free_reserved_data int overflow 2023-12-20 17:02:03 +01:00
ordered-data.h
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orphan.c
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orphan.h
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print-tree.c btrfs: remove v0 extent handling 2023-08-21 14:54:48 +02:00
print-tree.h
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props.c
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props.h
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qgroup.c btrfs: qgroup: correctly model root qgroup rsv in convert 2024-04-17 11:19:33 +02:00
qgroup.h btrfs: qgroup: iterate qgroups without memory allocation for qgroup_reserve() 2024-01-01 12:42:24 +00:00
raid56.c btrfs: scrub: avoid unnecessary csum tree search preparing stripes 2023-08-21 14:54:48 +02:00
raid56.h btrfs: raid56: remove unused BTRFS_RBIO_REBUILD_MISSING 2023-08-21 14:52:12 +02:00
rcu-string.h
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ref-verify.c btrfs: ref-verify: free ref cache before clearing mount opt 2024-01-31 16:19:06 -08:00
ref-verify.h
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reflink.c btrfs: convert to ctime accessor functions 2023-07-13 10:28:04 +02:00
reflink.h
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relocation.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
relocation.h
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root-tree.c btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-04-17 11:19:33 +02:00
root-tree.h btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-04-17 11:19:33 +02:00
scrub.c btrfs: zoned: use zone aware sb location for scrub 2024-04-03 15:28:54 +02:00
scrub.h
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send.c btrfs: send: handle path ref underflow in header iterate_inode_ref() 2024-04-13 13:07:32 +02:00
send.h
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space-info.c btrfs: fix data races when accessing the reserved amount of block reserves 2024-03-26 18:19:13 -04:00
space-info.h
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subpage.c
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subpage.h
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super.c btrfs: add dmesg output for first mount and last unmount of a filesystem 2023-12-08 08:52:20 +01:00
super.h
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sysfs.c btrfs: sysfs: validate scrub_speed_max value 2024-01-31 16:18:49 -08:00
sysfs.h
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transaction.c btrfs: qgroup: convert PREALLOC to PERTRANS after record_root_in_trans 2024-04-17 11:19:33 +02:00
transaction.h btrfs: free qgroup pertrans reserve on transaction abort 2024-01-01 12:42:24 +00:00
tree-checker.c btrfs: tree-checker: fix inline ref size in error messages 2024-01-31 16:19:06 -08:00
tree-checker.h
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tree-log.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
tree-log.h
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tree-mod-log.c
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tree-mod-log.h
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ulist.c
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ulist.h
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uuid-tree.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
uuid-tree.h
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verity.c btrfs: convert btrfs_read_merkle_tree_page() to use a folio 2023-09-13 18:40:54 +02:00
verity.h
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volumes.c btrfs: handle chunk tree lookup error in btrfs_relocate_sys_chunks() 2024-04-13 13:07:32 +02:00
volumes.h btrfs: add a helper to read the superblock metadata_uuid 2023-08-21 14:54:48 +02:00
xattr.c btrfs: abort transaction on generation mismatch when marking eb as dirty 2023-11-28 17:19:35 +00:00
xattr.h
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zlib.c
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zoned.c btrfs: zoned: fix lock ordering in btrfs_zone_activate() 2024-01-31 16:19:05 -08:00
zoned.h btrfs: zoned: reserve zones for an active metadata/system block group 2023-08-21 14:52:19 +02:00
zstd.c
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