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6ce6ba5344
linux/fs/btrfs
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Filipe Manana 6ce6ba5344 btrfs: use a single argument for extent offset in backref walking functions 
The interface for find_parent_nodes() has two extent offset related
arguments:

1) One u64 pointer argument for the extent offset;

2) One boolean argument to tell if the extent offset should be ignored or
   not.

These are confusing, becase the extent offset pointer can be NULL and in
some cases callers pass a NULL value as a way to tell the backref walking
code to ignore offsets in file extent items (and simply consider all file
extent items that point to the target data extent).

The boolean argument was added in commit c995ab3cda ("btrfs: add a flag
to iterate_inodes_from_logical to find all extent refs for uncompressed
extents"), but it was never really necessary, it was enough if it could
find a way to get a NULL value passed to the "extent_item_pos" argument of
find_parent_nodes(). The arguments are also passed to functions called
by find_parent_nodes() and respective helper functions, which further
makes everything more complicated than needed.

Then we have several backref walking related functions that end up calling
find_parent_nodes(), either directly or through some other function that
they call, and for many we have to use an "extent_item_pos" (u64) argument
and a boolean "ignore_offset" argument too.

This is confusing and not really necessary. So use a single argument to
specify the extent offset, as a simple u64 and not as a pointer, but
using a special value of (u64)-1, defined as a documented constant, to
indicate when the extent offset should be ignored.

This is also preparation work for the upcoming patches in the series that
add other arguments to find_parent_nodes() and other related functions
that use it.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-12-05 18:00:50 +01:00
..
tests btrfs: selftests: remove impossible inline extent at non-zero file offset 2022-12-05 18:00:47 +01:00
accessors.c btrfs: move btrfs_map_token to accessors 2022-12-05 18:00:42 +01:00
accessors.h btrfs: extend btrfs_dir_item type to store encryption status 2022-12-05 18:00:43 +01:00
acl.c btrfs: move acl prototypes into acl.h 2022-12-05 18:00:46 +01:00
acl.h btrfs: move acl prototypes into acl.h 2022-12-05 18:00:46 +01:00
async-thread.c btrfs: simplify WQ_HIGHPRI handling in struct btrfs_workqueue 2022-05-16 17:03:15 +02:00
async-thread.h btrfs: remove unused typedefs get_extent_t and btrfs_work_func_t 2022-07-25 17:45:36 +02:00
backref.c btrfs: use a single argument for extent offset in backref walking functions 2022-12-05 18:00:50 +01:00
backref.h btrfs: use a single argument for extent offset in backref walking functions 2022-12-05 18:00:50 +01:00
block-group.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
block-group.h btrfs: skip update of block group item if used bytes are the same 2022-12-05 18:00:40 +01:00
block-rsv.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
block-rsv.h btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
btrfs_inode.h btrfs: move inode prototypes to btrfs_inode.h 2022-12-05 18:00:45 +01:00
check-integrity.c btrfs: move accessor helpers into accessors.h 2022-12-05 18:00:42 +01:00
check-integrity.h btrfs: check-integrity: split submit_bio from btrfsic checking 2022-05-16 17:03:12 +02:00
compression.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
compression.h btrfs: add blk_types.h include to compression.h 2022-12-05 18:00:45 +01:00
ctree.c btrfs: move relocation prototypes into relocation.h 2022-12-05 18:00:47 +01:00
ctree.h btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
defrag.c btrfs: remove new_inline argument from btrfs_extent_item_to_extent_map() 2022-12-05 18:00:48 +01:00
defrag.h btrfs: move defrag related prototypes to their own header 2022-12-05 18:00:46 +01:00
delalloc-space.c btrfs: update function comments 2022-12-05 18:00:45 +01:00
delalloc-space.h btrfs: move delalloc space related prototypes to delalloc-space.h 2022-12-05 18:00:44 +01:00
delayed-inode.c btrfs: move file-item prototypes into their own header 2022-12-05 18:00:46 +01:00
delayed-inode.h btrfs: extend btrfs_dir_item type to store encryption status 2022-12-05 18:00:43 +01:00
delayed-ref.c btrfs: update function comments 2022-12-05 18:00:45 +01:00
delayed-ref.h btrfs: remove btrfs_delayed_extent_op::is_data 2022-05-16 17:17:31 +02:00
dev-replace.c btrfs: move scrub prototypes into scrub.h 2022-12-05 18:00:47 +01:00
dev-replace.h btrfs: move dev-replace prototypes into dev-replace.h 2022-12-05 18:00:47 +01:00
dir-item.c btrfs: move dir-item prototypes into dir-item.h 2022-12-05 18:00:46 +01:00
dir-item.h btrfs: move dir-item prototypes into dir-item.h 2022-12-05 18:00:46 +01:00
discard.c btrfs: update function comments 2022-12-05 18:00:45 +01:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: remove the unused endio_raid56_workers and btrfs_raid_bio::end_io_work 2022-12-05 18:00:49 +01:00
disk-io.h btrfs: remove unused function prototypes 2022-12-05 18:00:44 +01:00
export.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
export.h btrfs: simplify generation check in btrfs_get_dentry 2022-12-05 18:00:41 +01:00
extent_io.c btrfs: merge struct extent_page_data to btrfs_bio_ctrl 2022-12-05 18:00:48 +01:00
extent_io.h btrfs: convert extent_io page op defines to enum bits 2022-12-05 18:00:40 +01:00
extent_map.c btrfs: selftests: remove impossible inline extent at non-zero file offset 2022-12-05 18:00:47 +01:00
extent_map.h btrfs: get the next extent map during fiemap/lseek more efficiently 2022-12-05 18:00:38 +01:00
extent-io-tree.c btrfs: move the printk helpers out of ctree.h 2022-12-05 18:00:41 +01:00
extent-io-tree.h btrfs: remove unused unlock_extent_atomic 2022-12-05 18:00:41 +01:00
extent-tree.c btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
extent-tree.h btrfs: move the snapshot drop related prototypes to extent-tree.h 2022-12-05 18:00:46 +01:00
file-item.c btrfs: remove new_inline argument from btrfs_extent_item_to_extent_map() 2022-12-05 18:00:48 +01:00
file-item.h btrfs: remove new_inline argument from btrfs_extent_item_to_extent_map() 2022-12-05 18:00:48 +01:00
file.c btrfs: update stale comment for nowait direct IO writes 2022-12-05 18:00:48 +01:00
file.h btrfs: move file prototypes to file.h 2022-12-05 18:00:46 +01:00
free-space-cache.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
free-space-cache.h btrfs: convert discard stat defs to enum 2022-12-05 18:00:45 +01:00
free-space-tree.c btrfs: move root tree prototypes to their own header 2022-12-05 18:00:44 +01:00
free-space-tree.h btrfs: rename btrfs_block_group_cache 2019-11-18 17:51:51 +01:00
fs.c btrfs: move accessor helpers into accessors.h 2022-12-05 18:00:42 +01:00
fs.h btrfs: remove the unused endio_raid56_workers and btrfs_raid_bio::end_io_work 2022-12-05 18:00:49 +01:00
inode-item.c btrfs: move file-item prototypes into their own header 2022-12-05 18:00:46 +01:00
inode-item.h btrfs: use struct fscrypt_str instead of struct qstr 2022-12-05 18:00:43 +01:00
inode.c btrfs: extract the inline extent read code into its own function 2022-12-05 18:00:48 +01:00
ioctl.c btrfs: move super prototypes into super.h 2022-12-05 18:00:47 +01:00
ioctl.h btrfs: move ioctl prototypes into ioctl.h 2022-12-05 18:00:46 +01:00
Kconfig btrfs: use generic Kconfig option for 256kB page size limit 2022-01-20 08:52:55 +02:00
locking.c btrfs: move accessor helpers into accessors.h 2022-12-05 18:00:42 +01:00
locking.h btrfs: move the lockdep helpers into locking.h 2022-12-05 18:00:44 +01:00
lzo.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
Makefile btrfs: rename tree-defrag.c to defrag.c 2022-12-05 18:00:45 +01:00
messages.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
messages.h btrfs: move the 32bit warn defines into messages.h 2022-12-05 18:00:46 +01:00
misc.h btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
ordered-data.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
ordered-data.h btrfs: use cached_state for btrfs_check_nocow_lock 2022-12-05 18:00:36 +01:00
orphan.c btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
orphan.h btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
print-tree.c btrfs: extend btrfs_dir_item type to store encryption status 2022-12-05 18:00:43 +01:00
print-tree.h btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
props.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
props.h btrfs: make module init/exit match their sequence 2022-12-05 18:00:40 +01:00
qgroup.c btrfs: move root tree prototypes to their own header 2022-12-05 18:00:44 +01:00
qgroup.h btrfs: sink gfp_t parameter to btrfs_qgroup_trace_extent 2022-12-05 18:00:43 +01:00
raid56.c btrfs: raid56: switch scrub path to use a single function 2022-12-05 18:00:49 +01:00
raid56.h btrfs: remove the unused endio_raid56_workers and btrfs_raid_bio::end_io_work 2022-12-05 18:00:49 +01:00
rcu-string.h btrfs: rcu-string: Replace zero-length array with flexible-array member 2020-03-23 17:01:53 +01:00
ref-verify.c btrfs: move accessor helpers into accessors.h 2022-12-05 18:00:42 +01:00
ref-verify.h btrfs: ref-verify: Use btrfs_ref to refactor btrfs_ref_tree_mod() 2019-04-29 19:02:49 +02:00
reflink.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
reflink.h Btrfs: move all reflink implementation code into its own file 2020-03-23 17:01:54 +01:00
relocation.c btrfs: use a single argument for extent offset in backref walking functions 2022-12-05 18:00:50 +01:00
relocation.h btrfs: move relocation prototypes into relocation.h 2022-12-05 18:00:47 +01:00
root-tree.c btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
root-tree.h btrfs: move root tree prototypes to their own header 2022-12-05 18:00:44 +01:00
scrub.c btrfs: use a single argument for extent offset in backref walking functions 2022-12-05 18:00:50 +01:00
scrub.h btrfs: move scrub prototypes into scrub.h 2022-12-05 18:00:47 +01:00
send.c btrfs: use a single argument for extent offset in backref walking functions 2022-12-05 18:00:50 +01:00
send.h btrfs: send add define for v2 buffer size 2022-12-05 18:00:41 +01:00
space-info.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
space-info.h btrfs: move btrfs_account_ro_block_groups_free_space into space-info.c 2022-12-05 18:00:44 +01:00
subpage.c btrfs: move the printk helpers out of ctree.h 2022-12-05 18:00:41 +01:00
subpage.h btrfs: make nodesize >= PAGE_SIZE case to reuse the non-subpage routine 2022-05-16 17:03:11 +02:00
super.c btrfs: move super prototypes into super.h 2022-12-05 18:00:47 +01:00
super.h btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
sysfs.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
transaction.h btrfs: remove fs_info::pending_changes and related code 2022-12-05 18:00:42 +01:00
tree-checker.c btrfs: extend btrfs_dir_item type to store encryption status 2022-12-05 18:00:43 +01:00
tree-checker.h btrfs: tree-checker: check extent buffer owner against owner rootid 2022-05-16 17:03:09 +02:00
tree-log.c btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
tree-log.h btrfs: use struct fscrypt_str instead of struct qstr 2022-12-05 18:00:43 +01:00
tree-mod-log.c btrfs: move accessor helpers into accessors.h 2022-12-05 18:00:42 +01:00
tree-mod-log.h btrfs: fix SPDX comment in tree-mod-log.h 2022-12-05 18:00:48 +01:00
ulist.c btrfs: update function comments 2022-12-05 18:00:45 +01:00
ulist.h
uuid-tree.c btrfs: move uuid tree prototypes to uuid-tree.h 2022-12-05 18:00:46 +01:00
uuid-tree.h btrfs: move uuid tree prototypes to uuid-tree.h 2022-12-05 18:00:46 +01:00
verity.c btrfs: move orphan prototypes into orphan.h 2022-12-05 18:00:47 +01:00
verity.h btrfs: move verity prototypes into verity.h 2022-12-05 18:00:47 +01:00
volumes.c btrfs: simplify percent calculation helpers, rename div_factor 2022-12-05 18:00:48 +01:00
volumes.h btrfs: move btrfs_chunk_item_size out of ctree.h 2022-12-05 18:00:45 +01:00
xattr.c btrfs: move dir-item prototypes into dir-item.h 2022-12-05 18:00:46 +01:00
xattr.h
zlib.c btrfs: zlib: replace kmap() with kmap_local_page() in zlib_decompress_bio() 2022-07-25 17:45:41 +02:00
zoned.c btrfs: update function comments 2022-12-05 18:00:45 +01:00
zoned.h btrfs: move the printk helpers out of ctree.h 2022-12-05 18:00:41 +01:00
zstd.c btrfs: update function comments 2022-12-05 18:00:45 +01:00