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f3e01e0e3c
linux/fs/btrfs
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Qu Wenruo f3e01e0e3c btrfs: scrub: introduce scrub_block::pages for more efficient memory usage for subpage 
[BACKGROUND]
Currently for scrub, we allocate one page for one sector, this is fine
for PAGE_SIZE == sectorsize support, but can waste extra memory for
subpage support.

[CODE CHANGE]
Make scrub_block contain all the pages, so if we're scrubbing an extent
sized 64K, and our page size is also 64K, we only need to allocate one
page.

[LIFESPAN CHANGE]
Since now scrub_sector no longer holds a page, but is using
scrub_block::pages[] instead, we have to ensure scrub_block has a longer
lifespan for write bio. The lifespan for read bio is already large
enough.

Now scrub_block will only be released after the write bio finished.

[COMING NEXT]
Currently we only added scrub_block::pages[] for this purpose, but
scrub_sector is still utilizing the old scrub_sector::page.

The switch will happen in the next patch.

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
2022-09-26 12:27:55 +02:00
..
tests btrfs: add optimized btrfs_ino() version for 64 bits systems 2022-07-25 17:45:41 +02:00
acl.c btrfs: reserve correct number of items for inode creation 2022-05-16 17:03:08 +02:00
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: sink iterator parameter to btrfs_ioctl_logical_to_ino 2022-07-25 17:45:36 +02:00
backref.h btrfs: sink iterator parameter to btrfs_ioctl_logical_to_ino 2022-07-25 17:45:36 +02:00
block-group.c btrfs: delete btrfs_wait_space_cache_v1_finished 2022-09-26 12:27:55 +02:00
block-group.h btrfs: delete btrfs_wait_space_cache_v1_finished 2022-09-26 12:27:55 +02:00
block-rsv.c btrfs: use enum for btrfs_block_rsv::type 2022-07-25 17:45:40 +02:00
block-rsv.h btrfs: use enum for btrfs_block_rsv::type 2022-07-25 17:45:40 +02:00
btrfs_inode.h btrfs: add optimized btrfs_ino() version for 64 bits systems 2022-07-25 17:45:41 +02:00
check-integrity.c fs/btrfs: Use the enum req_op and blk_opf_t types 2022-07-14 12:14:32 -06:00
check-integrity.h btrfs: check-integrity: split submit_bio from btrfsic checking 2022-05-16 17:03:12 +02:00
compression.c for-5.20-tag 2022-08-03 14:54:52 -07:00
compression.h for-5.20-tag 2022-08-03 14:54:52 -07:00
ctree.c btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
ctree.h btrfs: send: add support for fs-verity 2022-09-26 12:27:55 +02:00
delalloc-space.c btrfs: convert count_max_extents() to use fs_info->max_extent_size 2022-07-25 17:45:41 +02:00
delalloc-space.h
delayed-inode.c btrfs: batch up release of reserved metadata for delayed items used for deletion 2022-07-25 17:45:37 +02:00
delayed-inode.h btrfs: reduce amount of reserved metadata for delayed item insertion 2022-07-25 17:44:36 +02:00
delayed-ref.c btrfs: switch btrfs_block_rsv::full to bool 2022-07-25 17:45:40 +02:00
delayed-ref.h btrfs: remove btrfs_delayed_extent_op::is_data 2022-05-16 17:17:31 +02:00
dev-replace.c btrfs: remove lock protection for BLOCK_GROUP_FLAG_TO_COPY 2022-09-26 12:27:54 +02:00
dev-replace.h btrfs: zoned: mark block groups to copy for device-replace 2021-02-09 02:46:07 +01:00
dir-item.c btrfs: use btrfs_for_each_slot in btrfs_search_dir_index_item 2022-05-16 17:03:07 +02:00
discard.c btrfs: fix typos in comments 2021-06-22 14:11:57 +02:00
discard.h
disk-io.c btrfs: add lockdep annotations for the ordered extents wait event 2022-09-26 12:27:53 +02:00
disk-io.h btrfs: move lockdep class helpers to locking.c 2022-08-17 16:19:10 +02:00
export.c
export.h
extent_io.c btrfs: use atomic_try_cmpxchg in free_extent_buffer 2022-09-26 12:27:55 +02:00
extent_io.h btrfs: fix repair of compressed extents 2022-07-25 19:56:16 +02:00
extent_map.c btrfs: assert we have a write lock when removing and replacing extent maps 2022-03-14 13:13:50 +01:00
extent_map.h btrfs: defrag: don't use merged extent map for their generation check 2022-02-23 17:43:13 +01:00
extent-io-tree.h btrfs: Convert from invalidatepage to invalidate_folio 2022-03-15 08:23:29 -04:00
extent-tree.c btrfs: convert block group bit field to use bit helpers 2022-09-26 12:27:54 +02:00
file-item.c btrfs: rename btrfs_insert_file_extent() to btrfs_insert_hole_extent() 2022-09-26 12:27:54 +02:00
file.c btrfs: rename btrfs_insert_file_extent() to btrfs_insert_hole_extent() 2022-09-26 12:27:54 +02:00
free-space-cache.c btrfs: convert block group bit field to use bit helpers 2022-09-26 12:27:54 +02:00
free-space-cache.h btrfs: change name and type of private member of btrfs_free_space_ctl 2022-01-03 15:09:50 +01:00
free-space-tree.c btrfs: use rbtree with leftmost node cached for tracking lowest block group 2022-05-16 17:03:13 +02:00
free-space-tree.h
inode-item.c btrfs: make should_throttle loop local in btrfs_truncate_inode_items 2022-01-07 14:18:25 +01:00
inode-item.h btrfs: add inode to truncate control 2022-01-07 14:18:24 +01:00
inode.c btrfs: rename btrfs_insert_file_extent() to btrfs_insert_hole_extent() 2022-09-26 12:27:54 +02:00
ioctl.c btrfs: use fs_info->max_extent_size in get_extent_max_capacity() 2022-07-25 17:45:41 +02:00
Kconfig btrfs: use generic Kconfig option for 256kB page size limit 2022-01-20 08:52:55 +02:00
locking.c btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
locking.h btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
lzo.c btrfs: replace kmap() with kmap_local_page() in lzo.c 2022-07-25 17:45:33 +02:00
Makefile Kbuild: add -Wno-shift-negative-value where -Wextra is used 2022-03-13 17:30:31 +09:00
misc.h btrfs: use correct header for div_u64 in misc.h 2021-09-07 14:29:50 +02:00
ordered-data.c btrfs: add lockdep annotations for the ordered extents wait event 2022-09-26 12:27:53 +02:00
ordered-data.h btrfs: remove the finish_func argument to btrfs_mark_ordered_io_finished 2022-07-25 17:45:37 +02:00
orphan.c
print-tree.c btrfs: unify the error handling pattern for read_tree_block() 2022-03-14 13:13:53 +01:00
print-tree.h
props.c btrfs: move common inode creation code into btrfs_create_new_inode() 2022-05-16 17:03:08 +02:00
props.h btrfs: move common inode creation code into btrfs_create_new_inode() 2022-05-16 17:03:08 +02:00
qgroup.c btrfs: avoid blocking on space revervation when doing nowait dio writes 2022-05-16 17:03:10 +02:00
qgroup.h btrfs: avoid blocking on space revervation when doing nowait dio writes 2022-05-16 17:03:10 +02:00
raid56.c for-5.20-tag 2022-08-03 14:54:52 -07:00
raid56.h btrfs: do not return errors from raid56_parity_recover 2022-07-25 17:45:39 +02:00
rcu-string.h
ref-verify.c btrfs: stop accessing ->extent_root directly 2022-01-03 15:09:49 +01:00
ref-verify.h
reflink.c btrfs: clean up chained assignments 2022-07-25 17:45:39 +02:00
reflink.h
relocation.c btrfs: fix lockdep splat with reloc root extent buffers 2022-08-17 16:19:12 +02:00
root-tree.c btrfs: fix silent failure when deleting root reference 2022-08-23 22:15:21 +02:00
scrub.c btrfs: scrub: introduce scrub_block::pages for more efficient memory usage for subpage 2022-09-26 12:27:55 +02:00
send.c btrfs: send: add support for fs-verity 2022-09-26 12:27:55 +02:00
send.h btrfs: send: add support for fs-verity 2022-09-26 12:27:55 +02:00
space-info.c btrfs: convert block group bit field to use bit helpers 2022-09-26 12:27:54 +02:00
space-info.h btrfs: handle space_info setting of bg in btrfs_add_bg_to_space_info 2022-09-26 12:27:54 +02:00
struct-funcs.c btrfs: remove redundant check in up check_setget_bounds 2022-07-25 17:45:33 +02:00
subpage.c btrfs: remove extent writepage address space operation 2022-07-25 17:45:37 +02:00
subpage.h btrfs: make nodesize >= PAGE_SIZE case to reuse the non-subpage routine 2022-05-16 17:03:11 +02:00
super.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
sysfs.c btrfs: sysfs: use sysfs_streq for string matching 2022-09-26 12:27:53 +02:00
sysfs.h
transaction.c btrfs: add lockdep annotations for pending_ordered wait event 2022-09-26 12:27:53 +02:00
transaction.h btrfs: pass btrfs_fs_info for deleting snapshots and cleaner 2022-03-14 13:13:52 +01:00
tree-checker.c btrfs: tree-checker: check for overlapping extent items 2022-08-17 16:20:25 +02:00
tree-checker.h btrfs: tree-checker: check extent buffer owner against owner rootid 2022-05-16 17:03:09 +02:00
tree-defrag.c btrfs: remove unnecessary extent root check in btrfs_defrag_leaves 2022-01-03 15:09:48 +01:00
tree-log.c btrfs: rename btrfs_insert_file_extent() to btrfs_insert_hole_extent() 2022-09-26 12:27:54 +02:00
tree-log.h btrfs: tree-log: make the return value for log syncing consistent 2022-07-25 17:45:34 +02:00
tree-mod-log.c btrfs: fix race when picking most recent mod log operation for an old root 2021-04-20 19:27:17 +02:00
tree-mod-log.h btrfs: add and use helper to get lowest sequence number for the tree mod log 2021-04-19 17:25:17 +02:00
ulist.c
ulist.h
uuid-tree.c btrfs: drop the _nr from the item helpers 2022-01-03 15:09:43 +01:00
verity.c btrfs: send: add support for fs-verity 2022-09-26 12:27:55 +02:00
volumes.c btrfs: remove lock protection for BLOCK_GROUP_FLAG_RELOCATING_REPAIR 2022-09-26 12:27:54 +02:00
volumes.h btrfs: do not return errors from btrfs_map_bio 2022-07-25 17:45:39 +02:00
xattr.c btrfs: check if root is readonly while setting security xattr 2022-08-22 18:06:30 +02:00
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: convert block group bit field to use bit helpers 2022-09-26 12:27:54 +02:00
zoned.h btrfs: zoned: activate metadata block group on flush_space 2022-07-25 17:45:42 +02:00
zstd.c btrfs: zstd: replace kmap() with kmap_local_page() 2022-07-25 17:45:40 +02:00