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linux/fs/btrfs
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Qu Wenruo 4ced85f81a btrfs: reduce type width of btrfs_io_contexts 
That structure is our ultimate object for all __btrfs_map_block()
related functions.  We have some hard to understand members, like
tgtdev_map, but without any comments.

This patch will improve the situation:

- Add extra comments for num_stripes, mirror_num, num_tgtdevs and
  tgtdev_map[]
  Especially for the last two members, add a dedicated (thus very long)
  comments for them, with example to explain it.

- Shrink those int members to u16.
  In fact our on-disk format is only using u16 for num_stripes, thus
  no need to use int at all.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-04-17 18:01:14 +02:00
..
tests
btrfs: replace map_lookup->stripe_len by BTRFS_STRIPE_LEN
2023-04-17 18:01:14 +02:00
accessors.c
btrfs: add eb to btrfs_node_key_ptr_offset
2022-12-05 18:00:58 +01:00
accessors.h
btrfs: add stack helpers for a few btrfs items
2022-12-05 18:00:58 +01:00
acl.c
fs: port acl to mnt_idmap
2023-01-19 09:24:28 +01:00
acl.h
fs: port ->set_acl() to pass mnt_idmap
2023-01-19 09:24:27 +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: ignore fiemap path cache when there are multiple paths for a node
2023-03-29 01:16:23 +02:00
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: fix unnecessary increment of read error stat on write error
2023-03-06 19:28:19 +01:00
bio.h
btrfs: remove the fs_info argument to btrfs_submit_bio
2023-02-15 19:38:53 +01:00
block-group.c
btrfs: reduce div64 calls by limiting the number of stripes of a chunk to u32
2023-04-17 18:01:14 +02:00
block-group.h
btrfs: remove the bdev argument to btrfs_rmap_block
2023-02-15 19:38:55 +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
for-6.3-tag
2023-02-20 12:54:27 -08:00
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 zone append bios in btrfs_submit_bio
2023-02-15 19:38:53 +01:00
compression.h
btrfs: split zone append bios in btrfs_submit_bio
2023-02-15 19:38:53 +01:00
ctree.c
btrfs: handle errors from btrfs_read_node_slot in split
2023-04-17 18:01:13 +02:00
ctree.h
btrfs: do unsigned integer division in the extent buffer binary search loop
2023-02-15 19:38:55 +01:00
defrag.c
btrfs: remove the wait argument to btrfs_start_ordered_extent
2023-02-13 17:50:34 +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: handle btrfs_del_item errors in __btrfs_update_delayed_inode
2023-03-06 19:28:19 +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: directly pass in fs_info to btrfs_merge_delayed_refs
2023-02-13 17:50:33 +01:00
delayed-ref.h
btrfs: directly pass in fs_info to btrfs_merge_delayed_refs
2023-02-13 17:50:33 +01:00
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: hold block group refcount during async discard
2023-02-15 19:38:50 +01:00
discard.h
btrfs: cleanup btrfs_discard_update_discardable usage
2020-12-08 15:54:02 +01:00
disk-io.c
btrfs: move all btree inode initialization into btrfs_init_btree_inode
2023-04-17 18:01:13 +02:00
disk-io.h
btrfs: rename btrfs_clean_tree_block to btrfs_clear_buffer_dirty
2023-02-15 19:38:53 +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
- Daniel Verkamp has contributed a memfd series ("mm/memfd: add
2023-02-23 17:09:35 -08:00
extent_io.h
btrfs: combine btrfs_clear_buffer_dirty and clear_extent_buffer_dirty
2023-02-15 19:38:54 +01:00
extent_map.c
btrfs: fix extent map logging bit not cleared for split maps after dropping range
2023-03-06 19:28:19 +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: fix spelling mistakes found using codespell
2023-02-15 19:38:50 +01:00
extent-io-tree.h
btrfs: remove the io_failure_record infrastructure
2023-02-15 19:38:51 +01:00
extent-tree.c
btrfs: abort the transaction if we get an error during snapshot drop
2023-04-17 18:01:13 +02:00
extent-tree.h
btrfs: introduce size class to block group allocator
2023-02-13 17:50:34 +01:00
file-item.c
btrfs: switch search_file_offset_in_bio to return bool
2023-04-17 18:01:13 +02:00
file-item.h
btrfs: simplify the btrfs_csum_one_bio calling convention
2023-02-15 19:38:52 +01:00
file.c
btrfs: remove the wait argument to btrfs_start_ordered_extent
2023-02-13 17:50:34 +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: zoned: count fresh BG region as zone unusable
2023-03-15 20:51:07 +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: rename btrfs_clean_tree_block to btrfs_clear_buffer_dirty
2023-02-15 19:38:53 +01:00
free-space-tree.h
btrfs: rename btrfs_block_group_cache
2019-11-18 17:51:51 +01:00
fs.c
btrfs: sysfs: update fs features directory asynchronously
2023-02-13 17:50:35 +01:00
fs.h
btrfs: rename BTRFS_FS_NO_OVERCOMMIT to BTRFS_FS_ACTIVE_ZONE_TRACKING
2023-03-15 20:51:06 +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: open code btrfs_csum_ptr
2023-04-17 18:01:13 +02:00
ioctl.c
for-6.3-rc4-tag
2023-04-02 10:57:12 -07:00
ioctl.h
fs: port ->fileattr_set() to pass mnt_idmap
2023-01-19 09:24:27 +01:00
Kconfig
fs/btrfs: Remove "select SRCU"
2023-02-02 16:26:06 -08:00
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
lru_cache.c
btrfs: send: cache utimes operations for directories if possible
2023-02-15 19:38:50 +01:00
lru_cache.h
btrfs: send: cache utimes operations for directories if possible
2023-02-15 19:38:50 +01:00
lzo.c
btrfs: use PAGE_{ALIGN, ALIGNED, ALIGN_DOWN} macro
2023-02-13 17:50:34 +01:00
Makefile
btrfs: send: genericize the backref cache to allow it to be reused
2023-02-13 17:50:35 +01:00
messages.c
btrfs: move btrfs_abort_transaction to transaction.c
2023-02-13 17:50:33 +01:00
messages.h
btrfs: move btrfs_abort_transaction to transaction.c
2023-02-13 17:50:33 +01:00
misc.h
btrfs: simplify percent calculation helpers, rename div_factor
2022-12-05 18:00:48 +01:00
ordered-data.c
btrfs: remove the wait argument to btrfs_start_ordered_extent
2023-02-13 17:50:34 +01:00
ordered-data.h
btrfs: don't rely on unchanging ->bi_bdev for zone append remaps
2023-02-15 19:38:55 +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
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: fix race between quota disable and quota assign ioctls
2023-03-28 00:46:53 +02:00
qgroup.h
btrfs: sink gfp_t parameter to btrfs_qgroup_trace_extent
2022-12-05 18:00:43 +01:00
raid56.c
btrfs: raid56: no need for irqsafe locking
2023-04-17 18:01:13 +02:00
raid56.h
btrfs: fix spelling mistakes found using codespell
2023-02-15 19:38:50 +01:00
rcu-string.h
btrfs: replace strncpy() with strscpy()
2022-12-05 18:00:59 +01:00
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
Btrfs: move all reflink implementation code into its own file
2020-03-23 17:01:54 +01:00
relocation.c
btrfs: use PAGE_{ALIGN, ALIGNED, ALIGN_DOWN} macro
2023-02-13 17:50:34 +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: reduce div64 calls by limiting the number of stripes of a chunk to u32
2023-04-17 18:01:14 +02:00
scrub.h
btrfs: move scrub prototypes into scrub.h
2022-12-05 18:00:47 +01:00
send.c
btrfs: send: cache utimes operations for directories if possible
2023-02-15 19:38:50 +01:00
send.h
btrfs: send add define for v2 buffer size
2022-12-05 18:00:41 +01:00
space-info.c
btrfs: zoned: drop space_info->active_total_bytes
2023-03-15 20:51:07 +01:00
space-info.h
btrfs: zoned: drop space_info->active_total_bytes
2023-03-15 20:51:07 +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: use btrfs_handle_fs_error in btrfs_fill_super
2023-04-17 18:01:12 +02:00
super.h
btrfs: move super_block specific helpers into super.h
2022-12-05 18:00:47 +01:00
sysfs.c
btrfs: sysfs: add size class stats
2023-03-01 19:27:20 +01:00
sysfs.h
btrfs: sysfs: update fs features directory asynchronously
2023-02-13 17:50:35 +01:00
transaction.c
btrfs: fix deadlock when aborting transaction during relocation with scrub
2023-03-28 00:47:00 +02:00
transaction.h
btrfs: move btrfs_abort_transaction to transaction.c
2023-02-13 17:50:33 +01:00
tree-checker.c
btrfs: reduce div64 calls by limiting the number of stripes of a chunk to u32
2023-04-17 18:01:14 +02:00
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: replace btrfs_wait_tree_block_writeback by wait_on_extent_buffer_writeback
2023-02-15 19:38:54 +01:00
tree-log.h
btrfs: use a negative value for BTRFS_LOG_FORCE_COMMIT
2023-02-13 17:50:34 +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
fsverity: pass pos and size to ->write_merkle_tree_block
2023-01-01 15:46:48 -08:00
verity.h
btrfs: move verity prototypes into verity.h
2022-12-05 18:00:47 +01:00
volumes.c
btrfs: reduce type width of btrfs_io_contexts
2023-04-17 18:01:14 +02:00
volumes.h
btrfs: reduce type width of btrfs_io_contexts
2023-04-17 18:01:14 +02:00
xattr.c
fs: port xattr to mnt_idmap
2023-01-19 09:24:28 +01:00
xattr.h
…
zlib.c
btrfs: zlib: zero-initialize zlib workspace
2023-01-25 20:11:08 +01:00
zoned.c
btrfs: zoned: drop space_info->active_total_bytes
2023-03-15 20:51:07 +01:00
zoned.h
btrfs: pass a btrfs_bio to btrfs_use_append
2023-02-15 19:38:55 +01:00
zstd.c
btrfs: constify input buffer parameter in compression code
2022-12-05 18:00:55 +01:00