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linux-kernelorg-stable/fs/btrfs
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Filipe Manana 88694f74f4 btrfs: add assertions and comment about path expectations to btrfs_cross_ref_exist() 
We should always call check_delayed_ref() with a path having a locked leaf
from the extent tree where either the extent item is located or where it
should be located in case it doesn't exist yet (when there's a pending
unflushed delayed ref to do it), as we need to lock any existing delayed
ref head while holding such leaf locked in order to avoid races with
flushing delayed references, which could make us think an extent is not
shared when it really is.

So add some assertions and a comment about such expectations to
btrfs_cross_ref_exist(), which is the only caller of check_delayed_ref().

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
 		2025-01-13 14:53:16 +01:00
..
tests btrfs: selftests: add delayed ref self test cases 2025-01-13 14:53:13 +01:00
Kconfig btrfs: split out CONFIG_BTRFS_EXPERIMENTAL from CONFIG_BTRFS_DEBUG 2024-11-11 14:34:12 +01:00
Makefile btrfs: selftests: add delayed ref self test cases 2025-01-13 14:53:13 +01:00
accessors.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
accessors.h move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
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: remove detached list from struct btrfs_backref_cache 2025-01-13 14:53:15 +01:00
backref.h btrfs: remove detached list from struct btrfs_backref_cache 2025-01-13 14:53:15 +01:00
bio.c for-6.13-rc3-tag 2024-12-18 14:17:21 -08:00
bio.h btrfs: fix error propagation of split bios 2024-10-23 18:17:43 +02:00
block-group.c btrfs: drop fs_info argument from btrfs_update_space_info_*() 2025-01-13 14:53:14 +01:00
block-group.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
block-rsv.c btrfs: drop fs_info argument from btrfs_update_space_info_*() 2025-01-13 14:53:14 +01:00
block-rsv.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
btrfs_inode.h btrfs: remove no longer needed strict argument from can_nocow_extent() 2025-01-13 14:53:16 +01:00
compression.c btrfs: use filemap_get_folio() helper 2024-11-11 14:34:19 +01:00
compression.h btrfs: lzo: drop unused paramter level from lzo_alloc_workspace() 2024-11-11 14:34:16 +01:00
ctree.c btrfs: fix use-after-free when COWing tree bock and tracing is enabled 2024-12-23 21:59:32 +01:00
ctree.h btrfs: fix improper generation check in snapshot delete 2024-12-17 19:54:32 +01:00
defrag.c btrfs: fix defrag not merging contiguous extents due to merged extent maps 2024-10-31 16:46:41 +01:00
defrag.h btrfs: drop transaction parameter from btrfs_add_inode_defrag() 2024-09-10 16:51:19 +02:00
delalloc-space.c btrfs: drop fs_info argument from btrfs_update_space_info_*() 2025-01-13 14:53:14 +01:00
delalloc-space.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
delayed-inode.c btrfs: pass a btrfs_inode to btrfs_readdir_get_delayed_items() 2024-07-11 15:33:28 +02:00
delayed-inode.h btrfs: remove hole from struct btrfs_delayed_node 2024-11-11 14:34:22 +01:00
delayed-ref.c btrfs: drop fs_info argument from btrfs_update_space_info_*() 2025-01-13 14:53:14 +01:00
delayed-ref.h btrfs: move select_delayed_ref() and export it 2025-01-13 14:53:13 +01:00
dev-replace.c btrfs: correct typos in multiple comments across various files 2024-11-11 14:34:14 +01:00
dev-replace.h
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dir-item.c btrfs: drop unused parameter fs_info from btrfs_match_dir_item_name() 2024-11-11 14:34:17 +01:00
dir-item.h btrfs: drop unused parameter fs_info from btrfs_match_dir_item_name() 2024-11-11 14:34:17 +01:00
direct-io.c btrfs: remove no longer needed strict argument from can_nocow_extent() 2025-01-13 14:53:16 +01:00
direct-io.h btrfs: move the direct IO code into its own file 2024-07-11 15:33:29 +02:00
discard.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
discard.h
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disk-io.c btrfs: flush delalloc workers queue before stopping cleaner kthread during unmount 2024-12-06 15:04:18 +01:00
disk-io.h btrfs: remove fs_info parameter from btrfs_cleanup_one_transaction() 2024-11-11 14:34:19 +01:00
export.c btrfs: remove super block argument from btrfs_iget() 2024-07-11 15:33:25 +02:00
export.h
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extent-io-tree.c btrfs: introduce EXTENT_DIO_LOCKED 2024-09-10 16:51:20 +02:00
extent-io-tree.h btrfs: introduce EXTENT_DIO_LOCKED 2024-09-10 16:51:20 +02:00
extent-tree.c btrfs: add assertions and comment about path expectations to btrfs_cross_ref_exist() 2025-01-13 14:53:16 +01:00
extent-tree.h btrfs: simplify arguments for btrfs_cross_ref_exist() 2025-01-13 14:53:16 +01:00
extent_io.c btrfs: use PTR_ERR() instead of PTR_ERR_OR_ZERO() for btrfs_get_extent() 2025-01-13 14:53:14 +01:00
extent_io.h btrfs: convert try_release_extent_mapping() to take a folio 2024-09-10 16:51:21 +02:00
extent_map.c btrfs: rename extent map shrinker members from struct btrfs_fs_info 2024-11-11 14:34:17 +01:00
extent_map.h btrfs: make the extent map shrinker run asynchronously as a work queue job 2024-11-11 14:34:17 +01:00
fiemap.c btrfs: correct typos in multiple comments across various files 2024-11-11 14:34:14 +01:00
fiemap.h btrfs: move fiemap code into its own file 2024-07-11 15:33:20 +02:00
file-item.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
file-item.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
file.c btrfs: remove no longer needed strict argument from can_nocow_extent() 2025-01-13 14:53:16 +01:00
file.h btrfs: convert btrfs_buffered_write() to use folios 2024-11-11 14:34:19 +01:00
free-space-cache.c btrfs: convert btrfs_buffered_write() to use folios 2024-11-11 14:34:19 +01:00
free-space-cache.h btrfs: add cancellation points to trim loops 2024-10-07 23:21:56 +02:00
free-space-tree.c btrfs: do not BUG_ON() when freeing tree block after error 2024-07-11 15:33:26 +02:00
free-space-tree.h
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fs.c
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fs.h btrfs: rename extent map shrinker members from struct btrfs_fs_info 2024-11-11 14:34:17 +01:00
inode-item.c btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
inode-item.h btrfs: constify more pointer parameters 2024-09-10 16:51:22 +02:00
inode.c btrfs: simplify arguments for btrfs_cross_ref_exist() 2025-01-13 14:53:16 +01:00
ioctl.c btrfs: handle FS_IOC_READ_VERITY_METADATA ioctl 2025-01-13 14:53:14 +01:00
ioctl.h btrfs: add io_uring command for encoded reads (ENCODED_READ ioctl) 2024-11-11 14:34:21 +01:00
locking.c btrfs: remove unused btrfs_try_tree_write_lock() 2024-11-11 14:34:14 +01:00
locking.h btrfs: add assertions and comment about path expectations to btrfs_cross_ref_exist() 2025-01-13 14:53:16 +01:00
lru_cache.c
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lru_cache.h btrfs: cleanup recursive include of the same header 2024-07-11 15:33:22 +02:00
lzo.c btrfs: lzo: drop unused paramter level from lzo_alloc_workspace() 2024-11-11 14:34:16 +01:00
messages.c btrfs: disable rate limiting when debug enabled 2024-10-01 19:29:41 +02:00
messages.h
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misc.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
ordered-data.c cxl changes for v6.13 2024-11-22 12:33:52 -08:00
ordered-data.h btrfs: convert btrfs_mark_ordered_io_finished() to take a folio 2024-09-10 16:51:14 +02:00
orphan.c btrfs: BTRFS_PATH_AUTO_FREE in orphan.c 2024-09-10 16:51:22 +02:00
orphan.h
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print-tree.c btrfs: avoid using fixed char array size for tree names 2024-08-02 22:44:27 +02:00
print-tree.h
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props.c btrfs: pass a btrfs_inode to btrfs_set_prop() 2024-07-11 15:33:29 +02:00
props.h btrfs: pass a btrfs_inode to btrfs_set_prop() 2024-07-11 15:33:29 +02:00
qgroup.c btrfs: improve the warning and error message for btrfs_remove_qgroup() 2025-01-13 14:53:15 +01:00
qgroup.h btrfs: drop unused transaction parameter from btrfs_qgroup_add_swapped_blocks() 2024-11-11 14:34:16 +01:00
raid-stripe-tree.c btrfs: remove unused variable length in btrfs_insert_one_raid_extent() 2025-01-13 14:53:16 +01:00
raid-stripe-tree.h btrfs: tests: add selftests for raid-stripe-tree 2024-11-11 14:34:14 +01:00
raid56.c btrfs: make assert_rbio() to only check CONFIG_BTRFS_ASSERT 2024-11-11 14:34:12 +01:00
raid56.h
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rcu-string.h
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ref-verify.c btrfs: ref-verify: fix use-after-free after invalid ref action 2024-11-29 16:52:29 +01:00
ref-verify.h
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reflink.c btrfs: convert copy_inline_to_page() to use folio 2024-09-10 16:51:21 +02:00
reflink.h
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relocation.c btrfs: remove detached list from struct btrfs_backref_cache 2025-01-13 14:53:15 +01:00
relocation.h
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root-tree.c btrfs: change root->root_key.objectid to btrfs_root_id() 2024-05-07 21:31:06 +02:00
root-tree.h btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-04-02 19:18:23 +02:00
scrub.c btrfs: avoid NULL pointer dereference if no valid extent tree 2025-01-06 16:32:31 +01:00
scrub.h
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send.c btrfs: send: remove redundant assignments to variable ret 2025-01-13 14:53:14 +01:00
send.h btrfs: split out CONFIG_BTRFS_EXPERIMENTAL from CONFIG_BTRFS_DEBUG 2024-11-11 14:34:12 +01:00
space-info.c btrfs: zoned: reclaim unused zone by zone resetting 2025-01-13 14:53:14 +01:00
space-info.h btrfs: zoned: reclaim unused zone by zone resetting 2025-01-13 14:53:14 +01:00
subpage.c btrfs: remove check for NULL fs_info at btrfs_folio_end_lock_bitmap() 2024-11-11 14:34:22 +01:00
subpage.h btrfs: rename btrfs_folio_(set|start|end)_writer_lock() 2024-11-11 14:34:18 +01:00
super.c btrfs: output the reason for open_ctree() failure 2025-01-13 14:53:15 +01:00
super.h btrfs: change BTRFS_MOUNT_* flags to 64bit type 2024-07-19 17:20:23 +02:00
sysfs.c btrfs: sysfs: fix direct super block member reads 2024-12-23 22:06:44 +01:00
sysfs.h
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transaction.c btrfs: drop fs_info argument from btrfs_update_space_info_*() 2025-01-13 14:53:14 +01:00
transaction.h btrfs: correct typos in multiple comments across various files 2024-11-11 14:34:14 +01:00
tree-checker.c btrfs: tree-checker: reject inline extent items with 0 ref count 2024-12-17 19:54:32 +01:00
tree-checker.h btrfs: simplify arguments for btrfs_verify_level_key() 2024-11-11 14:34:18 +01:00
tree-log.c btrfs: drop unused parameter ctx from batch_delete_dir_index_items() 2024-11-11 14:34:15 +01:00
tree-log.h btrfs: avoid transaction commit on any fsync after subvolume creation 2024-07-11 15:33:24 +02:00
tree-mod-log.c btrfs: drop unused parameter path from btrfs_tree_mod_log_rewind() 2024-11-11 14:34:15 +01:00
tree-mod-log.h btrfs: drop unused parameter path from btrfs_tree_mod_log_rewind() 2024-11-11 14:34:15 +01:00
ulist.c btrfs: preallocate ulist memory for qgroup rsv 2024-07-11 15:33:26 +02:00
ulist.h btrfs: preallocate ulist memory for qgroup rsv 2024-07-11 15:33:26 +02:00
uuid-tree.c move asm/unaligned.h to linux/unaligned.h 2024-10-02 17:23:23 -04:00
uuid-tree.h btrfs: move uuid tree related code to uuid-tree.[ch] 2024-09-10 16:51:12 +02:00
verity.c btrfs: add and use helper to verify the calling task has locked the inode 2024-09-10 16:51:22 +02:00
verity.h
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volumes.c btrfs: do not clear read-only when adding sprout device 2024-11-11 14:34:18 +01:00
volumes.h btrfs: remove unused btrfs_is_parity_mirror() 2024-11-11 14:34:14 +01:00
xattr.c btrfs: drop unused parameter fs_info from btrfs_match_dir_item_name() 2024-11-11 14:34:17 +01:00
xattr.h btrfs: constify pointer parameters where applicable 2024-07-11 15:33:22 +02:00
zlib.c btrfs: zlib: fix avail_in bytes for s390 zlib HW compression path 2025-01-06 16:32:43 +01:00
zoned.c btrfs: zoned: reclaim unused zone by zone resetting 2025-01-13 14:53:14 +01:00
zoned.h btrfs: zoned: reclaim unused zone by zone resetting 2025-01-13 14:53:14 +01:00
zstd.c btrfs: zstd: assert the timer pointer in callback 2024-11-11 14:34:15 +01:00