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linux-stable/fs/btrfs
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David Sterba 321f4992c1 btrfs: reduce size of struct btrfs_ref 
We can reduce two members' size that in turn reduce size of struct
btrfs_ref from 64 to 56 bytes. As the structure is often used as a local
variable several functions reduce their stack usage.

- make enum btrfs_ref_type packed, there are only 4 values

- switch action and its values to a packed enum

Final structure layout:

struct btrfs_ref {
        enum btrfs_ref_type        type;                 /*     0     1 */
        enum btrfs_delayed_ref_action action;            /*     1     1 */
        bool                       skip_qgroup;          /*     2     1 */

        /* XXX 5 bytes hole, try to pack */

        u64                        bytenr;               /*     8     8 */
        u64                        len;                  /*    16     8 */
        u64                        parent;               /*    24     8 */
        union {
                struct btrfs_data_ref data_ref;          /*    32    24 */
                struct btrfs_tree_ref tree_ref;          /*    32    16 */
        };                                               /*    32    24 */

        /* size: 56, cachelines: 1, members: 7 */
        /* sum members: 51, holes: 1, sum holes: 5 */
        /* last cacheline: 56 bytes */
};

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2023-10-12 16:44:04 +02:00
..
tests btrfs: tests: test invalid splitting when skipping pinned drop extent_map 2023-08-21 14:54:49 +02:00
accessors.c btrfs: add eb to btrfs_node_key_ptr_offset 2022-12-05 18:00:58 +01:00
accessors.h btrfs: include asm/unaligned.h in accessors.h 2023-10-12 16:44:02 +02:00
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: include trace header in where necessary 2023-10-12 16:44:03 +02:00
async-thread.h btrfs: use alloc_ordered_workqueue() to create ordered workqueues 2023-06-19 13:59:30 +02:00
backref.c btrfs: remove v0 extent handling 2023-08-21 14:54:48 +02:00
backref.h btrfs: reduce size of prelim_ref::level 2023-10-12 16:44:04 +02:00
bio.c btrfs: add an ordered_extent pointer to struct btrfs_bio 2023-06-19 13:59:36 +02:00
bio.h btrfs: add an ordered_extent pointer to struct btrfs_bio 2023-06-19 13:59:36 +02:00
block-group.c btrfs: fix race between finishing block group creation and its item update 2023-09-08 14:10:36 +02:00
block-group.h btrfs: rename add_new_free_space() to btrfs_add_new_free_space() 2023-08-21 14:52:12 +02:00
block-rsv.c btrfs: account block group tree when calculating global reserve size 2023-07-20 19:22:54 +02:00
block-rsv.h btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c 2023-06-19 13:59:24 +02:00
btrfs_inode.h btrfs: reduce size and reorder compression members in struct btrfs_inode 2023-10-12 16:44:04 +02:00
check-integrity.c btrfs: rename __btrfs_map_block to btrfs_map_block 2023-06-19 13:59:34 +02:00
check-integrity.h
compression.c btrfs: make btrfs_compressed_bioset static 2023-06-19 17:01:44 +02:00
compression.h btrfs: pass an ordered_extent to btrfs_submit_compressed_write 2023-06-19 13:59:36 +02:00
ctree.c btrfs: reduce arguments of helpers space accounting root item 2023-10-12 16:44:04 +02:00
ctree.h btrfs: remove extraneous includes from ctree.h 2023-10-12 16:44:03 +02:00
defrag.c btrfs: drop gfp from parameter extent state helpers 2023-06-19 13:59:30 +02:00
defrag.h
delalloc-space.c btrfs: count extents before taking inode's spinlock when reserving metadata 2023-04-17 18:01:19 +02:00
delalloc-space.h
delayed-inode.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +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: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
delayed-ref.h btrfs: reduce size of struct btrfs_ref 2023-10-12 16:44:04 +02:00
dev-replace.c btrfs: make find_first_extent_bit() return a boolean 2023-08-21 14:52:12 +02:00
dev-replace.h btrfs: move dev-replace prototypes into dev-replace.h 2022-12-05 18:00:47 +01:00
dir-item.c
dir-item.h btrfs: add fscrypt related dependencies to respective headers 2023-10-12 16:44:02 +02:00
discard.c btrfs: unexport btrfs_run_discard_work and make it static 2023-06-19 13:59:25 +02:00
discard.h btrfs: unexport btrfs_run_discard_work and make it static 2023-06-19 13:59:25 +02:00
disk-io.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
disk-io.h btrfs: make btrfs_cleanup_fs_roots() static 2023-08-21 14:52:18 +02:00
export.c btrfs: move super_block specific helpers into super.h 2022-12-05 18:00:47 +01:00
export.h
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: reduce parameters of btrfs_pin_extent_for_log_replay 2023-10-12 16:44:04 +02:00
extent-tree.h btrfs: reduce parameters of btrfs_pin_extent_for_log_replay 2023-10-12 16:44:04 +02:00
extent_io.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +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 btrfs: pass the new logical address to split_extent_map 2023-06-19 13:59:33 +02:00
file-item.c btrfs: scrub: avoid unnecessary csum tree search preparing stripes 2023-08-21 14:54:48 +02:00
file-item.h btrfs: scrub: avoid unnecessary csum tree search preparing stripes 2023-08-21 14:54:48 +02:00
file.c btrfs: include linux/iomap.h in file.c 2023-10-12 16:44:02 +02:00
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: remove btrfs_crc32c wrapper 2023-10-12 16:44:02 +02:00
free-space-cache.h btrfs: move btrfs_check_trunc_cache_free_space into block-rsv.c 2023-06-19 13:59:24 +02:00
free-space-tree.c btrfs: rename add_new_free_space() to btrfs_add_new_free_space() 2023-08-21 14:52:12 +02:00
free-space-tree.h btrfs: make clear_cache mount option to rebuild FST without disabling it 2023-05-10 14:51:27 +02:00
fs.c btrfs: sysfs: update fs features directory asynchronously 2023-02-13 17:50:35 +01:00
fs.h btrfs: zoned: activate metadata block group on write time 2023-08-21 14:52:19 +02:00
inode-item.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
inode-item.h btrfs: add fscrypt related dependencies to respective headers 2023-10-12 16:44:02 +02:00
inode.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
ioctl.c for-6.6-rc4-tag 2023-10-06 08:07:47 -07:00
ioctl.h fs: port ->fileattr_set() to pass mnt_idmap 2023-01-19 09:24:27 +01:00
Kconfig MAINTAINERS: remove links to obsolete btrfs.wiki.kernel.org 2023-09-08 14:21:27 +02:00
locking.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
locking.h btrfs: do not block starts waiting on previous transaction commit 2023-09-08 14:10:49 +02:00
lru_cache.c btrfs: send: cache utimes operations for directories if possible 2023-02-15 19:38:50 +01:00
lru_cache.h btrfs: remove btrfs_lru_cache_is_full() inline function 2023-04-17 18:01:18 +02:00
lzo.c btrfs: disable allocation warnings for compression workspaces 2023-06-19 13:59:34 +02:00
Makefile btrfs: send: genericize the backref cache to allow it to be reused 2023-02-13 17:50:35 +01:00
messages.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +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: check for BTRFS_FS_ERROR in pending ordered assert 2023-09-08 14:10:59 +02:00
ordered-data.h btrfs: add a btrfs_finish_ordered_extent helper 2023-06-19 13:59:37 +02:00
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: remove v0 extent handling 2023-08-21 14:54:48 +02:00
print-tree.h btrfs: print-tree: pass const extent buffer pointer 2023-06-19 13:59:22 +02:00
props.c btrfs: move btrfs_name_hash to dir-item.h 2023-10-12 16:44:02 +02:00
props.h
qgroup.c btrfs: move functions comments from qgroup.h to qgroup.c 2023-10-12 16:44:04 +02:00
qgroup.h btrfs: move functions comments from qgroup.h to qgroup.c 2023-10-12 16:44:04 +02:00
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 btrfs: replace strncpy() with strscpy() 2022-12-05 18:00:59 +01:00
ref-verify.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
ref-verify.h
reflink.c btrfs: convert to ctime accessor functions 2023-07-13 10:28:04 +02:00
reflink.h
relocation.c btrfs: drop __must_check annotations 2023-10-12 16:44:04 +02:00
relocation.h btrfs: pass an ordered_extent to btrfs_reloc_clone_csums 2023-06-19 13:59:36 +02:00
root-tree.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
root-tree.h btrfs: drop __must_check annotations 2023-10-12 16:44:04 +02:00
scrub.c btrfs: scrub: move write back of repaired sectors to scrub_stripe_read_repair_worker() 2023-08-21 14:54:49 +02:00
scrub.h btrfs: scrub: remove scrub_bio structure 2023-04-17 18:01:24 +02:00
send.c btrfs: remove btrfs_crc32c wrapper 2023-10-12 16:44:02 +02:00
send.h
space-info.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
space-info.h btrfs: include trace header in where necessary 2023-10-12 16:44:03 +02:00
subpage.c btrfs: stop setting PageError in the data I/O path 2023-06-19 13:59:35 +02:00
subpage.h btrfs: stop setting PageError in the data I/O path 2023-06-19 13:59:35 +02:00
super.c btrfs: include linux/security.h in super.c 2023-10-12 16:44:03 +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: show if ACL support has been compiled in 2023-08-21 14:52:12 +02:00
sysfs.h btrfs: sysfs: update fs features directory asynchronously 2023-02-13 17:50:35 +01:00
transaction.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
transaction.h btrfs: always print transaction aborted messages with an error level 2023-10-04 01:03:59 +02:00
tree-checker.c btrfs: move btrfs_name_hash to dir-item.h 2023-10-12 16:44:02 +02:00
tree-checker.h btrfs: move btrfs_verify_level_key into tree-checker.c 2023-06-19 13:59:25 +02:00
tree-log.c btrfs: reduce parameters of btrfs_pin_extent_for_log_replay 2023-10-12 16:44:04 +02:00
tree-log.h btrfs: change for_rename argument of btrfs_record_unlink_dir() to bool 2023-06-19 13:59:26 +02:00
tree-mod-log.c btrfs: avoid tree mod log ENOMEM failures when we don't need to log 2023-06-19 13:59:38 +02:00
tree-mod-log.h btrfs: fix SPDX comment in tree-mod-log.h 2022-12-05 18:00:48 +01:00
ulist.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
ulist.h btrfs: constify ulist parameter of ulist_next() 2022-12-05 18:00:50 +01:00
uuid-tree.c
uuid-tree.h
verity.c btrfs: convert btrfs_read_merkle_tree_page() to use a folio 2023-09-13 18:40:54 +02:00
verity.h btrfs: move verity prototypes into verity.h 2022-12-05 18:00:47 +01:00
volumes.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00
volumes.h btrfs: comment about fsid and metadata_uuid relationship 2023-10-12 16:44:04 +02:00
xattr.c btrfs: convert to ctime accessor functions 2023-07-13 10:28:04 +02:00
xattr.h
zlib.c btrfs: disable allocation warnings for compression workspaces 2023-06-19 13:59:34 +02:00
zoned.c btrfs: do not require EXTENT_NOWAIT for btrfs_redirty_list_add() 2023-10-12 16:44:02 +02:00
zoned.h btrfs: zoned: reserve zones for an active metadata/system block group 2023-08-21 14:52:19 +02:00
zstd.c btrfs: reformat remaining kdoc style comments 2023-10-12 16:44:04 +02:00