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linux/fs/btrfs
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Matthew Wilcox (Oracle) f9a6f9a85a minmax: add in_range() macro 
[ Upstream commit f9bff0e318 ]

Patch series "New page table range API", v6.

This patchset changes the API used by the MM to set up page table entries.
The four APIs are:

    set_ptes(mm, addr, ptep, pte, nr)
    update_mmu_cache_range(vma, addr, ptep, nr)
    flush_dcache_folio(folio)
    flush_icache_pages(vma, page, nr)

flush_dcache_folio() isn't technically new, but no architecture
implemented it, so I've done that for them.  The old APIs remain around
but are mostly implemented by calling the new interfaces.

The new APIs are based around setting up N page table entries at once.
The N entries belong to the same PMD, the same folio and the same VMA, so
ptep++ is a legitimate operation, and locking is taken care of for you.
Some architectures can do a better job of it than just a loop, but I have
hesitated to make too deep a change to architectures I don't understand
well.

One thing I have changed in every architecture is that PG_arch_1 is now a
per-folio bit instead of a per-page bit when used for dcache clean/dirty
tracking.  This was something that would have to happen eventually, and it
makes sense to do it now rather than iterate over every page involved in a
cache flush and figure out if it needs to happen.

The point of all this is better performance, and Fengwei Yin has measured
improvement on x86.  I suspect you'll see improvement on your architecture
too.  Try the new will-it-scale test mentioned here:
https://lore.kernel.org/linux-mm/20230206140639.538867-5-fengwei.yin@intel.com/
You'll need to run it on an XFS filesystem and have
CONFIG_TRANSPARENT_HUGEPAGE set.

This patchset is the basis for much of the anonymous large folio work
being done by Ryan, so it's received quite a lot of testing over the last
few months.

This patch (of 38):

Determine if a value lies within a range more efficiently (subtraction +
comparison vs two comparisons and an AND).  It also has useful (under some
circumstances) behaviour if the range exceeds the maximum value of the
type.  Convert all the conflicting definitions of in_range() within the
kernel; some can use the generic definition while others need their own
definition.

Link: https://lkml.kernel.org/r/20230802151406.3735276-1-willy@infradead.org
Link: https://lkml.kernel.org/r/20230802151406.3735276-2-willy@infradead.org
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Eliav Farber <farbere@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-10-02 13:40:41 +02:00
..
tests btrfs: tests: allocate dummy fs_info and root in test_find_delalloc() 2024-08-29 17:30:37 +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: fix information leak in btrfs_ioctl_logical_to_ino() 2024-05-02 16:29:28 +02:00
backref.h btrfs: ignore fiemap path cache if we have multiple leaves for a data extent 2022-10-11 14:48:07 +02:00
block-group.c btrfs: zoned: do not remove unwritten non-data block group 2025-08-28 16:26:04 +02:00
block-group.h btrfs: add and use helper to check if block group is used 2024-02-23 09:12:28 +01:00
block-rsv.c btrfs: calculate the right space for delayed refs when updating global reserve 2024-09-30 16:23:55 +02:00
block-rsv.h btrfs: calculate the right space for delayed refs when updating global reserve 2024-09-30 16:23:55 +02:00
btrfs_inode.h btrfs: fix race between setting last_dir_index_offset and inode logging 2025-09-09 18:54:12 +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 btrfs: fix extent map use-after-free when adding pages to compressed bio 2024-09-04 13:25:00 +02:00
compression.h for-5.20-tag 2022-08-03 14:54:52 -07:00
ctree.c btrfs: abort transaction on unexpected eb generation at btrfs_copy_root() 2025-08-28 16:26:11 +02:00
ctree.h btrfs: rename and export __btrfs_cow_block() 2025-01-09 13:30:03 +01:00
delalloc-space.c btrfs: don't reserve space for checksums when writing to nocow files 2024-02-23 09:12:29 +01:00
delalloc-space.h btrfs: add the ability to use NO_FLUSH for data reservations 2022-09-29 17:08:28 +02:00
delayed-inode.c btrfs: change BUG_ON to assertion when checking for delayed_node root 2024-08-29 17:30:37 +02:00
delayed-inode.h btrfs: fix infinite directory reads 2024-01-31 16:17:05 -08:00
delayed-ref.c btrfs: reinitialize delayed ref list after deleting it from the list 2024-11-14 13:15:17 +01:00
delayed-ref.h btrfs: calculate the right space for delayed refs when updating global reserve 2024-09-30 16:23:55 +02:00
dev-replace.c btrfs: dev-replace: properly validate device names 2024-03-06 14:45:10 +00:00
dev-replace.h btrfs: add struct declarations in dev-replace.h 2022-09-26 12:28:07 +02:00
dir-item.c btrfs: fix passing 0 to ERR_PTR in btrfs_search_dir_index_item() 2024-11-01 01:56:06 +01:00
discard.c btrfs: make btrfs_discard_workfn() block_group ref explicit 2025-06-04 14:40:04 +02:00
discard.h btrfs: cleanup btrfs_discard_update_discardable usage 2020-12-08 15:54:02 +01:00
disk-io.c btrfs: handle csum tree error with rescue=ibadroots correctly 2025-07-06 10:57:56 +02:00
disk-io.h btrfs: fix double free of anonymous device after snapshot creation failure 2024-03-06 14:45:10 +00:00
export.c btrfs: export: handle invalid inode or root reference in btrfs_get_parent() 2024-04-13 13:05:01 +02:00
export.h btrfs: fix type of parameter generation in btrfs_get_dentry 2022-10-24 15:28:58 +02:00
extent-io-tree.c btrfs: fix off-by-one in delalloc search during lseek 2023-01-12 12:01:56 +01:00
extent-io-tree.h btrfs: stop tracking failed reads in the I/O tree 2022-09-26 12:28:05 +02:00
extent-tree.c btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info() 2025-05-22 14:10:09 +02:00
extent_io.c btrfs: adjust subpage bit start based on sectorsize 2025-09-09 18:54:19 +02:00
extent_io.h btrfs: move extent io tree unrelated prototypes to their appropriate header 2022-09-26 12:28:04 +02:00
extent_map.c btrfs: fix wrong block_start calculation for btrfs_drop_extent_map_range() 2024-06-21 14:35:38 +02:00
extent_map.h btrfs: get the next extent map during fiemap/lseek more efficiently 2023-04-26 14:28:38 +02:00
file-item.c btrfs: mark the len field in struct btrfs_ordered_sum as unsigned 2024-01-10 17:10:35 +01:00
file.c btrfs: avoid page_lockend underflow in btrfs_punch_hole_lock_range() 2025-05-02 07:46:54 +02:00
free-space-cache.c btrfs: zoned: properly take lock to read/update block group's zoned variables 2024-08-29 17:30:15 +02:00
free-space-cache.h btrfs: remove use btrfs_remove_free_space_cache instead of variant 2022-09-26 12:27:58 +02:00
free-space-tree.c btrfs: fix assertion when building free space tree 2025-07-17 18:32:14 +02:00
free-space-tree.h btrfs: make clear_cache mount option to rebuild FST without disabling it 2023-05-17 11:53:42 +02:00
inode-item.c btrfs: use struct fscrypt_str instead of struct qstr 2023-10-10 22:00:36 +02:00
inode-item.h btrfs: use struct fscrypt_str instead of struct qstr 2023-10-10 22:00:36 +02:00
inode.c btrfs: fix race between setting last_dir_index_offset and inode logging 2025-09-09 18:54:12 +02:00
ioctl.c btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-12-14 19:53:56 +01:00
Kconfig btrfs: use generic Kconfig option for 256kB page size limit 2022-01-20 08:52:55 +02:00
locking.c btrfs: add block-group tree to lockdep classes 2023-07-19 16:22:13 +02:00
locking.h btrfs: implement a nowait option for tree searches 2022-09-26 12:46:42 +02:00
lzo.c btrfs: replace kmap() with kmap_local_page() in lzo.c 2022-07-25 17:45:33 +02:00
Makefile btrfs: move extent state init and alloc functions to their own file 2022-09-26 12:28:03 +02:00
misc.h minmax: add in_range() macro 2025-10-02 13:40:41 +02:00
ordered-data.c btrfs: fix qgroup reservation leak on failure to allocate ordered extent 2025-08-28 16:26:10 +02:00
ordered-data.h btrfs: mark the len field in struct btrfs_ordered_sum as unsigned 2024-01-10 17:10:35 +01:00
orphan.c btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
print-tree.c btrfs: avoid using fixed char array size for tree names 2024-08-14 13:52:59 +02:00
print-tree.h btrfs: print the actual offset in btrfs_root_name 2021-01-07 17:25:05 +01:00
props.c btrfs: remove the unnecessary result variables 2022-09-26 12:28:00 +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: qgroup: fix race between quota disable and quota rescan ioctl 2025-08-28 16:26:11 +02:00
qgroup.h btrfs: fix qgroup_free_reserved_data int overflow 2024-01-10 17:10:35 +01:00
raid56.c btrfs: raid56: avoid double freeing for rbio if full_stripe_write() failed 2022-10-24 15:26:56 +02:00
raid56.h btrfs: properly abstract the parity raid bio handling 2022-09-26 12:27:59 +02:00
rcu-string.h btrfs: replace strncpy() with strscpy() 2023-01-12 12:01:55 +01:00
ref-verify.c btrfs: ref-verify: fix use-after-free after invalid ref action 2024-12-14 19:54:10 +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: replace sb::s_blocksize by fs_info::sectorsize 2024-08-29 17:30:42 +02:00
reflink.h Btrfs: move all reflink implementation code into its own file 2020-03-23 17:01:54 +01:00
relocation.c btrfs: do not allow relocation of partially dropped subvolumes 2025-08-28 16:26:04 +02:00
root-tree.c btrfs: qgroup: fix qgroup prealloc rsv leak in subvolume operations 2024-12-14 19:53:56 +01:00
scrub.c btrfs: scrub: initialize ret in scrub_simple_mirror() to fix compilation warning 2024-07-11 12:47:10 +02:00
send.c btrfs: send: use fallocate for hole punching with send stream v2 2025-08-28 16:26:11 +02:00
send.h btrfs: send: allow protocol version 3 with CONFIG_BTRFS_DEBUG 2022-10-11 14:46:55 +02:00
space-info.c btrfs: zoned: fix zone_unusable accounting on making block group read-write again 2024-08-11 12:36:00 +02:00
space-info.h btrfs: zoned: fix zone_unusable accounting on making block group read-write again 2024-08-11 12:36:00 +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: convert process_page_range() to use filemap_get_folios_contig() 2022-09-11 20:26:03 -07:00
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: correctly escape subvol in btrfs_show_options() 2025-04-25 10:43:53 +02:00
sysfs.c btrfs: sysfs: fix direct super block member reads 2025-01-02 10:30:55 +01:00
sysfs.h btrfs: split and refactor btrfs_sysfs_remove_devices_dir 2020-10-07 12:12:21 +02:00
transaction.c btrfs: fix use-after-free when attempting to join an aborted transaction 2025-02-21 13:49:29 +01:00
transaction.h btrfs: fix race between direct IO write and fsync when using same fd 2024-09-12 11:10:29 +02:00
tree-checker.c btrfs: tree-checker: fix the incorrect inode ref size check 2025-09-25 10:58:52 +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: move the auto defrag code to defrag.c 2023-02-22 12:59:40 +01:00
tree-log.c btrfs: fix invalid extref key setup when replaying dentry 2025-09-25 10:58:51 +02:00
tree-log.h btrfs: use struct fscrypt_str instead of struct qstr 2023-10-10 22:00:36 +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 btrfs: replace GPL boilerplate by SPDX -- sources 2018-04-12 16:29:51 +02:00
ulist.h btrfs: replace GPL boilerplate by SPDX -- headers 2018-04-12 16:29:46 +02:00
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: update superblock's device bytes_used when dropping chunk 2025-07-06 10:58:01 +02:00
volumes.h btrfs: add a helper to read the superblock metadata_uuid 2023-09-23 11:11:08 +02:00
xattr.c btrfs: check if root is readonly while setting security xattr 2022-08-22 18:06:30 +02:00
xattr.h btrfs: cleanup btrfs_setxattr_trans and drop transaction parameter 2019-04-29 19:02:44 +02:00
zlib.c btrfs: zlib: zero-initialize zlib workspace 2023-02-14 19:11:40 +01:00
zoned.c btrfs: zoned: use filesystem size not disk size for reclaim decision 2025-08-28 16:26:04 +02:00
zoned.h btrfs: zoned: clone zoned device info when cloning a device 2022-11-07 14:35:21 +01:00
zstd.c btrfs: zstd: replace kmap() with kmap_local_page() 2022-07-25 17:45:40 +02:00