Josef Bacik 637e3b48c2 btrfs: add helpers for manipulating leaf items and data ... We have some gnarly memmove and copy_extent_buffer calls for leaf manipulation. This is because our item offsets aren't absolute, they're based on 0 being where the items start in the leaf, which is after the btrfs_header. This means any manipulation of the data requires adding sizeof(struct btrfs_header) to the offsets we pull from the items. Moving the items themselves is easier as the helpers are absolute offsets, however we of course have to call the helpers to get the offsets for the item numbers. This makes for copy_extent_buffer/memmove_extent_buffer calls that are kind of hard to reason about what's happening. Fix this by pushing this logic into helpers. For data we'll only use the item provided offsets, and the helpers will use the BTRFS_LEAF_DATA_OFFSET addition for the offsets. Additionally for the item manipulation simply pass in the item numbers, and then the helpers will call the offset helper to get the actual offset into the leaf. The diffstat makes this look like more code, but that's simply because I added comments for the helpers, it's net negative for the amount of code, and is easier to reason. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com>		2022-12-05 18:00:58 +01:00
..
tests	btrfs: drop private_data parameter from extent_io_tree_init	2022-12-05 18:00:54 +01:00
accessors.c	btrfs: add eb to btrfs_node_key_ptr_offset	2022-12-05 18:00:58 +01:00
accessors.h	btrfs: add eb to btrfs_node_key_ptr_offset	2022-12-05 18:00:58 +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: move struct btrfs_tree_parent_check out of disk-io.h	2022-12-05 18:00:57 +01:00
backref.h	btrfs: send: skip resolution of our own backref when finding clone source	2022-12-05 18:00:50 +01:00
bio.c	btrfs: move repair_io_failure to bio.c	2022-12-05 18:00:57 +01:00
bio.h	btrfs: split the bio submission path into a separate file	2022-12-05 18:00:57 +01:00
block-group.c	btrfs: convert btrfs_block_group::needs_free_space to runtime flag	2022-12-05 18:00:51 +01:00
block-group.h	btrfs: convert btrfs_block_group::seq_zone to runtime flag	2022-12-05 18:00:51 +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: pass btrfs_inode to btrfs_add_delayed_iput	2022-12-05 18:00:55 +01:00
check-integrity.c	btrfs: use btrfs_dev_name() helper to handle missing devices better	2022-12-05 18:00:57 +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: split the bio submission path into a separate file	2022-12-05 18:00:57 +01:00
compression.h	btrfs: constify input buffer parameter in compression code	2022-12-05 18:00:55 +01:00
ctree.c	btrfs: add helpers for manipulating leaf items and data	2022-12-05 18:00:58 +01:00
ctree.h	btrfs: move the csum helpers into ctree.h	2022-12-05 18:00:58 +01:00
defrag.c	btrfs: pass btrfs_inode to btrfs_inode_unlock	2022-12-05 18:00:53 +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: pass btrfs_inode to btrfs_inode_unlock	2022-12-05 18:00:53 +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: use btrfs_dev_name() helper to handle missing devices better	2022-12-05 18:00:57 +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
disk-io.c	btrfs: move repair_io_failure to bio.c	2022-12-05 18:00:57 +01:00
disk-io.h	btrfs: move struct btrfs_tree_parent_check out of disk-io.h	2022-12-05 18:00:57 +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: add eb to btrfs_node_key_ptr_offset	2022-12-05 18:00:58 +01:00
extent_io.h	btrfs: move eb offset helpers into extent_io.h	2022-12-05 18:00:58 +01:00
extent_map.c	btrfs: remove no longer used btrfs_next_extent_map()	2022-12-05 18:00:56 +01:00
extent_map.h	btrfs: remove no longer used btrfs_next_extent_map()	2022-12-05 18:00:56 +01:00
extent-io-tree.c	btrfs: update stale comment for count_range_bits()	2022-12-05 18:00:56 +01:00
extent-io-tree.h	btrfs: allow passing a cached state record to count_range_bits()	2022-12-05 18:00:56 +01:00
extent-tree.c	btrfs: split the bio submission path into a separate file	2022-12-05 18:00:57 +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: split the bio submission path into a separate file	2022-12-05 18:00:57 +01:00
file-item.h	btrfs: move file_extent_item helpers into file-item.h	2022-12-05 18:00:58 +01:00
file.c	btrfs: use cached state when looking for delalloc ranges with lseek	2022-12-05 18:00:57 +01:00
file.h	btrfs: use cached state when looking for delalloc ranges with fiemap	2022-12-05 18:00:56 +01:00
free-space-cache.c	btrfs: pass btrfs_inode to btrfs_add_delayed_iput	2022-12-05 18:00:55 +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: convert btrfs_block_group::needs_free_space to runtime flag	2022-12-05 18:00:51 +01:00
free-space-tree.h
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: split the bio submission path into a separate file	2022-12-05 18:00:57 +01:00
ioctl.c	btrfs: use btrfs_dev_name() helper to handle missing devices better	2022-12-05 18:00:57 +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: constify input buffer parameter in compression code	2022-12-05 18:00:55 +01:00
Makefile	btrfs: split the bio submission path into a separate file	2022-12-05 18:00:57 +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: pass btrfs_inode to btrfs_add_delayed_iput	2022-12-05 18:00:55 +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: move struct btrfs_tree_parent_check out of disk-io.h	2022-12-05 18:00:57 +01:00
print-tree.h
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 struct btrfs_tree_parent_check out of disk-io.h	2022-12-05 18:00:57 +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: do data csum verification during RMW cycle	2022-12-05 18:00:57 +01:00
raid56.h	btrfs: raid56: prepare data checksums for later RMW verification	2022-12-05 18:00:57 +01:00
rcu-string.h
ref-verify.c	btrfs: move accessor helpers into accessors.h	2022-12-05 18:00:42 +01:00
ref-verify.h
reflink.c	btrfs: pass btrfs_inode to btrfs_inode_unlock	2022-12-05 18:00:53 +01:00
reflink.h
relocation.c	btrfs: split the bio submission path into a separate file	2022-12-05 18:00:57 +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: introduce a bitmap based csum range search function	2022-12-05 18:00:57 +01:00
scrub.h	btrfs: move scrub prototypes into scrub.h	2022-12-05 18:00:47 +01:00
send.c	btrfs: send: bump the extent reference count limit for backref walking	2022-12-05 18:00:51 +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: split the bio submission path into a separate file	2022-12-05 18:00:57 +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
transaction.c	btrfs: drop private_data parameter from extent_io_tree_init	2022-12-05 18:00:54 +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: pass the extent buffer for the btrfs_item_nr helpers	2022-12-05 18:00:58 +01:00
tree-checker.h	btrfs: move struct btrfs_tree_parent_check out of disk-io.h	2022-12-05 18:00:57 +01:00
tree-log.c	btrfs: split the bio submission path into a separate file	2022-12-05 18:00:57 +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: add eb to btrfs_node_key_ptr_offset	2022-12-05 18:00:58 +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: constify ulist parameter of ulist_next()	2022-12-05 18:00:50 +01:00
ulist.h	btrfs: constify ulist parameter of ulist_next()	2022-12-05 18:00:50 +01:00
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: split the bio submission path into a separate file	2022-12-05 18:00:57 +01:00
volumes.h	btrfs: split the bio submission path into a separate file	2022-12-05 18:00:57 +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: constify input buffer parameter in compression code	2022-12-05 18:00:55 +01:00
zoned.c	btrfs: convert btrfs_block_group::seq_zone to runtime flag	2022-12-05 18:00:51 +01:00
zoned.h	btrfs: move the printk helpers out of ctree.h	2022-12-05 18:00:41 +01:00
zstd.c	btrfs: constify input buffer parameter in compression code	2022-12-05 18:00:55 +01:00