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Chuck Lever ecba88a3b3 libfs: Add simple_offset_empty() 
For simple filesystems that use directory offset mapping, rely
strictly on the directory offset map to tell when a directory has
no children.

After this patch is applied, the emptiness test holds only the RCU
read lock when the directory being tested has no children.

In addition, this adds another layer of confirmation that
simple_offset_add/remove() are working as expected.

Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Link: https://lore.kernel.org/r/170820143463.6328.7872919188371286951.stgit@91.116.238.104.host.secureserver.net
Signed-off-by: Christian Brauner <brauner@kernel.org>
2024-02-21 09:34:25 +01:00
..
damon
mm/damon/vaddr: change asm-generic/mman-common.h to linux/mman.h
2023-12-29 11:58:57 -08:00
kasan
kasan: avoid resetting aux_lock
2024-01-12 15:20:45 -08:00
kfence
KFENCE: cleanup kfence_guarded_alloc() after CONFIG_SLAB removal
2023-12-05 11:17:58 +01:00
kmsan
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
backing-dev.c
writeback: remove redundant checks for root memcg
2023-08-21 13:37:48 -07:00
balloon_compaction.c
…
bootmem_info.c
bootmem: use kmemleak_free_part_phys in put_page_bootmem
2023-10-25 16:47:13 -07:00
cma_debug.c
…
cma_sysfs.c
mm: cma: make kobj_type structure constant
2023-03-28 16:20:06 -07:00
cma.c
mm: cma: remove unnecessary initialization of ret
2023-12-12 10:57:08 -08:00
cma.h
…
compaction.c
Generic:
2024-01-17 13:03:37 -08:00
debug_page_alloc.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
debug.c
mm: update validate_mm() to use vma iterator
2023-06-09 16:25:31 -07:00
dmapool_test.c
dmapool: add alloc/free performance test
2023-04-05 19:42:38 -07:00
dmapool.c
mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs
2023-12-05 11:17:58 +01:00
early_ioremap.c
mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup()
2023-06-09 16:25:56 -07:00
fadvise.c
mm: remove unnecessary pagevec includes
2023-06-23 16:59:31 -07:00
fail_page_alloc.c
mm: page_alloc: split out FAIL_PAGE_ALLOC
2023-06-09 16:25:23 -07:00
failslab.c
…
filemap.c
vfs-6.8.netfs
2024-01-19 09:10:23 -08:00
folio-compat.c
mm: remove page_add_new_anon_rmap and lru_cache_add_inactive_or_unevictable
2023-12-29 11:58:27 -08:00
gup_test.c
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-06-23 16:58:19 -07:00
gup_test.h
…
gup.c
mm: convert page_try_share_anon_rmap() to folio_try_share_anon_rmap_[pte|pmd]()
2023-12-29 11:58:56 -08:00
highmem.c
x86/kexec: use pr_err() instead of kexec_dprintk() when an error occurs
2023-12-29 12:22:28 -08:00
hmm.c
mm: enable page walking API to lock vmas during the walk
2023-08-21 13:07:20 -07:00
huge_memory.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
hugetlb_cgroup.c
mm, hugetlb: remove HUGETLB_CGROUP_MIN_ORDER
2023-10-18 14:34:17 -07:00
hugetlb_vmemmap.c
mm: hugetlb_vmemmap: move mmap lock to vmemmap_remap_range()
2023-12-12 10:57:08 -08:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: fix reference to nonexistent file
2023-10-25 16:47:14 -07:00
hugetlb.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
hwpoison-inject.c
…
init-mm.c
mm: Deprecate pasid field
2023-12-12 10:11:32 +01:00
internal.h
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed
2023-08-18 10:12:36 -07:00
Kconfig
IOMMU Updates for Linux v6.8
2024-01-18 15:16:57 -08:00
Kconfig.debug
mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile
2023-12-05 11:14:40 +01:00
khugepaged.c
header cleanups for 6.8
2024-01-10 16:43:55 -08:00
kmemleak.c
kmemleak: avoid RCU stalls when freeing metadata for per-CPU pointers
2023-12-12 10:57:07 -08:00
ksm.c
mm: convert page_try_share_anon_rmap() to folio_try_share_anon_rmap_[pte|pmd]()
2023-12-29 11:58:56 -08:00
list_lru.c
mm/list_lru.c: remove unused list_lru_from_kmem()
2023-12-20 14:48:11 -08:00
maccess.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
madvise.c
mm: return a folio from read_swap_cache_async()
2023-12-29 11:58:32 -08:00
Makefile
mm/slab: remove CONFIG_SLAB from all Kconfig and Makefile
2023-12-05 11:14:40 +01:00
mapping_dirty_helpers.c
mm: fix clean_record_shared_mapping_range kernel-doc
2023-08-24 16:20:30 -07:00
memblock.c
memblock: code readability improvement
2024-01-18 16:46:18 -08:00
memcontrol.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
memfd.c
memfd: drop warning for missing exec-related flags
2023-10-04 10:32:22 -07:00
memory_hotplug.c
mm/memory_hotplug: fix memmap_on_memory sysfs value retrieval
2024-01-12 15:20:48 -08:00
memory-failure.c
New code for 6.8:
2024-01-10 08:45:22 -08:00
memory-tiers.c
base/node / acpi: Change 'node_hmem_attrs' to 'access_coordinates'
2023-12-22 14:23:13 -08:00
memory.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
mempolicy.c
Many singleton patches against the MM code. The patch series which are
2023-11-02 19:38:47 -10:00
mempool.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
memremap.c
mm: remove stale example from comment
2023-12-29 11:58:26 -08:00
memtest.c
mm: memtest: convert to memtest_report_meminfo()
2023-08-21 13:37:47 -07:00
migrate_device.c
mm: convert page_try_share_anon_rmap() to folio_try_share_anon_rmap_[pte|pmd]()
2023-12-29 11:58:56 -08:00
migrate.c
Generic:
2024-01-17 13:03:37 -08:00
mincore.c
mm: enable page walking API to lock vmas during the walk
2023-08-21 13:07:20 -07:00
mlock.c
mm: mlock: avoid folio_within_range() on KSM pages
2023-10-25 16:47:14 -07:00
mm_init.c
efi: disable mirror feature during crashkernel
2024-01-12 15:20:47 -08:00
mm_slot.h
…
mmap_lock.c
…
mmap.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
mmu_gather.c
mm/memory: page_remove_rmap() -> folio_remove_rmap_pte()
2023-12-29 11:58:54 -08:00
mmu_notifier.c
mmu_notifiers: rename invalidate_range notifier
2023-08-18 10:12:41 -07:00
mmzone.c
zswap: shrink zswap pool based on memory pressure
2023-12-12 10:57:02 -08:00
mprotect.c
mm: mprotect: use a folio in change_pte_range()
2023-10-25 16:47:12 -07:00
mremap.c
mm: abstract VMA merge and extend into vma_merge_extend() helper
2023-10-18 14:34:18 -07:00
msync.c
…
nommu.c
Many singleton patches against the MM code. The patch series which are
2023-11-02 19:38:47 -10:00
oom_kill.c
mm, oom:dump_tasks add rss detailed information printing
2023-12-10 16:51:53 -08:00
page_alloc.c
Networking changes for 6.8.
2024-01-11 10:07:29 -08:00
page_counter.c
…
page_ext.c
mm/page_ext: move functions around for minor cleanups to page_ext
2023-08-18 10:12:31 -07:00
page_idle.c
…
page_io.c
zswap: memcontrol: implement zswap writeback disabling
2023-12-29 20:22:11 -08:00
page_isolation.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
page_owner.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
page_poison.c
mm/page_poison: replace kmap_atomic() with kmap_local_page()
2023-12-10 16:51:50 -08:00
page_reporting.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
page_reporting.h
…
page_table_check.c
mm: convert page_table_check_pte_set() to page_table_check_ptes_set()
2023-08-24 16:20:18 -07:00
page_vma_mapped.c
mm: thp: introduce multi-size THP sysfs interface
2023-12-20 14:48:12 -08:00
page-writeback.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
pagewalk.c
mm: pagewalk: assert write mmap lock only for walking the user page tables
2023-12-10 16:51:53 -08:00
percpu-internal.h
percpu-internal/pcpu_chunk: re-layout pcpu_chunk structure to reduce false sharing
2023-06-19 16:19:29 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c
mm: Introduce flush_cache_vmap_early()
2023-12-14 00:23:17 -08:00
pgalloc-track.h
…
pgtable-generic.c
mm/pgtable: notes on pte_offset_map[_lock]()
2023-08-18 10:12:25 -07:00
process_vm_access.c
mm: fix process_vm_rw page counts
2023-12-10 16:51:39 -08:00
ptdump.c
mm: ptdump should use ptep_get_lockless()
2023-06-19 16:19:24 -07:00
readahead.c
mm/readahead: do not allow order-1 folio
2023-12-12 10:57:06 -08:00
rmap.c
mm/rmap: rename COMPOUND_MAPPED to ENTIRELY_MAPPED
2023-12-29 11:58:56 -08:00
rodata_test.c
…
secretmem.c
mm/secretmem: use a folio in secretmem_fault()
2023-08-21 13:38:02 -07:00
shmem_quota.c
shmem: Add default quota limit mount options
2023-08-09 09:15:40 +02:00
shmem.c
libfs: Add simple_offset_empty()
2024-02-21 09:34:25 +01:00
show_mem.c
mm, treewide: introduce NR_PAGE_ORDERS
2024-01-08 15:27:15 -08:00
shrinker_debug.c
mm: shrinker: convert shrinker_rwsem to mutex
2023-10-04 10:32:26 -07:00
shrinker.c
mm: shrinker: use kvzalloc_node() from expand_one_shrinker_info()
2024-01-05 09:58:32 -08:00
shuffle.c
…
shuffle.h
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
slab_common.c
slub: use a folio in __kmalloc_large_node
2024-01-05 10:17:46 -08:00
slab.h
mm/slab: move kmalloc() functions from slab_common.c to slub.c
2023-12-06 11:57:21 +01:00
slub.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
sparse-vmemmap.c
mm/vmemmap: allow architectures to override how vmemmap optimization works
2023-08-18 10:12:53 -07:00
sparse.c
mm/sparsemem: fix race in accessing memory_section->usage
2023-12-29 11:58:43 -08:00
swap_cgroup.c
…
swap_slots.c
…
swap_state.c
mm: convert swap_cluster_readahead and swap_vma_readahead to return a folio
2023-12-29 11:58:32 -08:00
swap.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
swap.h
mm: convert swap_cluster_readahead and swap_vma_readahead to return a folio
2023-12-29 11:58:32 -08:00
swapfile.c
header cleanups for 6.8
2024-01-10 16:43:55 -08:00
truncate.c
fs: convert error_remove_page to error_remove_folio
2023-12-10 16:51:42 -08:00
usercopy.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
userfaultfd.c
userfaultfd: avoid huge_zero_page in UFFDIO_MOVE
2024-01-12 15:20:49 -08:00
util.c
mm/util: use kmap_local_page() in memcmp_pages()
2023-12-10 16:51:49 -08:00
vmalloc.c
mm/vmalloc: fix the unchecked dereference warning in vread_iter()
2023-11-01 12:38:35 -07:00
vmpressure.c
eventfd: simplify eventfd_signal()
2023-11-28 14:08:38 +01:00
vmscan.c
Many singleton patches against the MM code. The patch series which
2024-01-09 11:18:47 -08:00
vmstat.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-01-08 15:27:15 -08:00
workingset.c
mm: ratelimit stat flush from workingset shrinker
2024-01-05 10:17:45 -08:00
z3fold.c
mm/z3fold: remove obsolete comment for struct z3fold_pool
2023-08-21 13:37:51 -07:00
zbud.c
mm: zswap: remove shrink from zpool interface
2023-06-19 16:19:27 -07:00
zpool.c
mm: zswap: remove shrink from zpool interface
2023-06-19 16:19:27 -07:00
zsmalloc.c
mm: zsmalloc: return -ENOSPC rather than -EINVAL in zs_malloc while size is too large
2024-01-05 10:17:47 -08:00
zswap.c
zswap: memcontrol: implement zswap writeback disabling
2023-12-29 20:22:11 -08:00