Peter Xu a79390f5d6 mm/mprotect: use long for page accountings and retval ... Switch to use type "long" for page accountings and retval across the whole procedure of change_protection(). The change should have shrinked the possible maximum page number to be half comparing to previous (ULONG_MAX / 2), but it shouldn't overflow on any system either because the maximum possible pages touched by change protection should be ULONG_MAX / PAGE_SIZE. Two reasons to switch from "unsigned long" to "long": 1. It suites better on count_vm_numa_events(), whose 2nd parameter takes a long type. 2. It paves way for returning negative (error) values in the future. Currently the only caller that consumes this retval is change_prot_numa(), where the unsigned long was converted to an int. Since at it, touching up the numa code to also take a long, so it'll avoid any possible overflow too during the int-size convertion. Link: https://lkml.kernel.org/r/20230104225207.1066932-3-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Acked-by: Mike Kravetz <mike.kravetz@oracle.com> Acked-by: James Houghton <jthoughton@google.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Axel Rasmussen <axelrasmussen@google.com> Cc: David Hildenbrand <david@redhat.com> Cc: Muchun Song <songmuchun@bytedance.com> Cc: Nadav Amit <nadav.amit@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2023-01-18 17:12:53 -08:00
..
damon	mm/damon/vaddr: convert hugetlb related functions to use a folio	2023-01-18 17:12:53 -08:00
kasan	kasan: allow sampling page_alloc allocations for HW_TAGS	2023-01-18 17:12:45 -08:00
kfence	hardening updates for v6.2-rc1	2022-12-14 12:20:00 -08:00
kmsan	kmsan: export kmsan_handle_urb	2022-12-21 14:31:52 -08:00
backing-dev.c	mm: add /sys/class/bdi/<bdi>/min_ratio_fine knob	2022-11-30 15:59:06 -08:00
balloon_compaction.c	mm: Convert all PageMovable users to movable_operations	2022-08-02 12:34:03 -04:00
bootmem_info.c	bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem	2022-08-28 14:02:45 -07:00
cma_debug.c	mm/cma_debug: show complete cma name in debugfs directories	2022-09-11 20:25:50 -07:00
cma_sysfs.c
cma.c	cma: tracing: print alloc result in trace_cma_alloc_finish	2023-01-18 17:12:41 -08:00
cma.h
compaction.c	mm, compaction: fix fast_isolate_around() to stay within boundaries	2022-11-30 15:59:07 -08:00
debug_page_ref.c
debug_vm_pgtable.c	mm: remove unused savedwrite infrastructure	2022-11-30 15:58:49 -08:00
debug.c	mm,thp,rmap: simplify compound page mapcount handling	2022-11-30 15:58:46 -08:00
dmapool.c
early_ioremap.c
fadvise.c	mm/fadvise: use LLONG_MAX instead of -1 for eof	2022-12-11 18:12:11 -08:00
failslab.c	mm: fix unexpected changes to {failslab|fail_page_alloc}.attr	2022-11-22 18:50:44 -08:00
filemap.c	filemap: convert replace_page_cache_page() to replace_page_cache_folio()	2022-12-11 18:12:12 -08:00
folio-compat.c	folio-compat: remove lru_cache_add()	2022-12-11 18:12:13 -08:00
frontswap.c	frontswap: don't call ->init if no ops are registered	2022-09-26 12:14:34 -07:00
gup_test.c	mm/gup_test: free memory allocated via kvcalloc() using kvfree()	2022-12-15 16:37:48 -08:00
gup_test.h	mm/gup_test: start/stop/read functionality for PIN LONGTERM test	2022-11-08 17:37:15 -08:00
gup.c	New Feature:	2022-12-17 14:06:53 -06:00
highmem.c	highmem: fix kmap_to_page() for kmap_local_page() addresses	2022-10-12 18:51:51 -07:00
hmm.c	mm/hugetlb: make walk_hugetlb_range() safe to pmd unshare	2023-01-18 17:12:39 -08:00
huge_memory.c	mm: huge_memory: convert split_huge_pages_all() to use a folio	2023-01-18 17:12:51 -08:00
hugetlb_cgroup.c	mm/hugeltb_cgroup: convert hugetlb_cgroup_commit_charge*() to folios	2022-11-30 15:58:43 -08:00
hugetlb_vmemmap.c	mm/hugetlb_vmemmap: remap head page to newly allocated page	2022-11-30 15:58:47 -08:00
hugetlb_vmemmap.h	mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability	2022-08-08 18:06:43 -07:00
hugetlb.c	mm/mprotect: use long for page accountings and retval	2023-01-18 17:12:53 -08:00
hwpoison-inject.c	mm/hwpoison: add __init/__exit annotations to module init/exit funcs	2022-10-03 14:03:05 -07:00
init-mm.c	mm: remove rb tree.	2022-09-26 19:46:16 -07:00
internal.h	mm: move folio_set_compound_order() to mm/internal.h	2023-01-18 17:12:36 -08:00
interval_tree.c
io-mapping.c
ioremap.c	mm: ioremap: Add ioremap/iounmap_allowed()	2022-06-27 12:22:31 +01:00
Kconfig	New Feature:	2022-12-17 14:06:53 -06:00
Kconfig.debug	mm, slub: add CONFIG_SLUB_TINY	2022-11-27 23:38:02 +01:00
khugepaged.c	mm/MADV_COLLAPSE: don't expand collapse when vm_end is past requested end	2023-01-11 16:14:20 -08:00
kmemleak.c	mm/kmemleak: use %pK to display kernel pointers in backtrace	2022-12-15 16:37:49 -08:00
ksm.c	mm/ksm: convert break_ksm() to use walk_page_range_vma()	2022-12-11 18:12:09 -08:00
list_lru.c	mm: kmem: make mem_cgroup_from_obj() vmalloc()-safe	2022-06-16 19:48:31 -07:00
maccess.c	maccess: Fix writing offset in case of fault in strncpy_from_kernel_nofault()	2022-11-11 11:44:46 -08:00
madvise.c	mm/swap: convert deactivate_page() to folio_deactivate()	2023-01-18 17:12:47 -08:00
Makefile	mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol	2022-10-03 14:03:36 -07:00
mapping_dirty_helpers.c	mm: Rename pmd_read_atomic()	2022-12-15 10:37:27 -08:00
memblock.c	mm: Always release pages to the buddy allocator in memblock_free_late().	2023-01-08 18:49:33 +02:00
memcontrol.c	mm: memcg: add folio_memcg_check()	2023-01-18 17:12:52 -08:00
memfd.c	mm/memfd: add write seals when apply SEAL_EXEC to executable memfd	2023-01-18 17:12:37 -08:00
memory_hotplug.c	mm: add pageblock_aligned() macro	2022-10-03 14:03:04 -07:00
memory-failure.c	mm/memory-failure.c: cleanup in unpoison_memory	2022-11-30 15:59:08 -08:00
memory-tiers.c	mm/demotion: fix NULL vs IS_ERR checking in memory_tier_init	2022-11-30 15:58:54 -08:00
memory.c	mm/memory: add vm_normal_folio()	2023-01-18 17:12:47 -08:00
mempolicy.c	mm/mprotect: use long for page accountings and retval	2023-01-18 17:12:53 -08:00
mempool.c	mempool: do not use ksize() for poisoning	2022-11-30 15:58:41 -08:00
memremap.c	mm/memremap.c: map FS_DAX device memory as decrypted	2022-11-08 15:57:23 -08:00
memtest.c
migrate_device.c	mm/migrate_device: return number of migrating pages in args->cpages	2022-11-22 18:50:43 -08:00
migrate.c	mm/hugetlb: move swap entry handling into vma lock when faulted	2023-01-18 17:12:38 -08:00
mincore.c	mm: convert find_get_incore_page() to filemap_get_incore_folio()	2022-11-08 17:37:18 -08:00
mlock.c	mm/mlock: drop dead code in count_mm_mlocked_page_nr()	2022-09-26 19:46:27 -07:00
mm_init.c	memory: move hotplug memory notifier priority to same file for easy sorting	2022-11-08 17:37:17 -08:00
mm_slot.h	mm: introduce common struct mm_slot	2022-10-03 14:02:43 -07:00
mmap_lock.c
mmap.c	mm: update mmap_sem comments to refer to mmap_lock	2023-01-11 16:14:22 -08:00
mmu_gather.c	mm: mmu_gather: allow more than one batch of delayed rmaps	2022-12-11 18:12:21 -08:00
mmu_notifier.c
mmzone.c	mm: multi-gen LRU: groundwork	2022-09-26 19:46:09 -07:00
mprotect.c	mm/mprotect: use long for page accountings and retval	2023-01-18 17:12:53 -08:00
mremap.c	mm, mremap: fix mremap() expanding vma with addr inside vma	2022-12-21 14:31:51 -08:00
msync.c	mm/msync: use vma_find() instead of vma linked list	2022-09-26 19:46:25 -07:00
nommu.c	nommu: fix split_vma() map_count error	2023-01-11 16:14:23 -08:00
oom_kill.c	mm: reduce noise in show_mem for lowmem allocations	2022-09-26 19:46:29 -07:00
page_alloc.c	mm: multi-gen LRU: per-node lru_gen_folio lists	2023-01-18 17:12:49 -08:00
page_counter.c	mm: page_counter: remove unneeded atomic ops for low/min	2022-09-11 20:26:01 -07:00
page_ext.c	Merge branch 'mm-hotfixes-stable' into mm-stable	2022-11-30 14:58:42 -08:00
page_idle.c	mm: page_idle: convert page idle to use a folio	2023-01-18 17:12:52 -08:00
page_io.c	page_io: remove buffer_head include	2023-01-18 17:12:40 -08:00
page_isolation.c	mm/page_isolation: fix clang deadcode warning	2022-10-28 13:37:22 -07:00
page_owner.c	mm: reuse pageblock_start/end_pfn() macro	2022-10-03 14:03:03 -07:00
page_poison.c
page_reporting.c	mm/page_reporting: replace rcu_access_pointer() with rcu_dereference_protected()	2023-01-18 17:12:50 -08:00
page_reporting.h
page_table_check.c	mm: use kstrtobool() instead of strtobool()	2022-11-30 15:58:45 -08:00
page_vma_mapped.c	mm/hugetlb: introduce hugetlb_walk()	2023-01-18 17:12:39 -08:00
page-writeback.c	mm: remove generic_writepages	2023-01-18 17:12:51 -08:00
pagewalk.c	mm/hugetlb: introduce hugetlb_walk()	2023-01-18 17:12:39 -08:00
percpu-internal.h	percpu: improve percpu_alloc_percpu event trace	2022-05-13 07:20:18 -07:00
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c	mm/percpu.c: remove the lcm code since block size is fixed at page size	2022-11-07 22:59:18 -08:00
pgalloc-track.h
pgtable-generic.c	mm: avoid unnecessary flush on change_huge_pmd()	2022-05-13 07:20:05 -07:00
process_vm_access.c	use less confusing names for iov_iter direction initializers	2022-11-25 13:01:55 -05:00
ptdump.c	mm: pagewalk: Fix race between unmap and page walker	2022-09-03 10:13:13 -07:00
readahead.c	mm: add PSI accounting around ->read_folio and ->readahead calls	2022-09-20 08:24:38 -06:00
rmap.c	mm: rmap: remove lock_page_memcg()	2023-01-18 17:12:42 -08:00
rodata_test.c	mm/rodata_test: use PAGE_ALIGNED() helper	2022-10-03 14:03:05 -07:00
secretmem.c	mm/secretmem: remove reduntant return value	2022-10-03 14:03:36 -07:00
shmem.c	swap: avoid holding swap reference in swap_cache_get_folio	2023-01-18 17:12:45 -08:00
shrinker_debug.c	mm: shrinkers: fix double kfree on shrinker name	2022-07-29 18:07:13 -07:00
shuffle.c	mm/shuffle: convert module_param_call to module_param_cb	2022-10-03 14:03:07 -07:00
shuffle.h
slab_common.c	hardening updates for v6.2-rc1	2022-12-14 12:20:00 -08:00
slab.c	Merge branch 'slab/for-6.2/kmalloc_redzone' into slab/for-next	2022-11-21 10:36:09 +01:00
slab.h	Merge branch 'slub-tiny-v1r6' into slab/for-next	2022-12-01 00:14:00 +01:00
slob.c	Merge branch 'slab/for-6.1/kmalloc_size_roundup' into slab/for-next	2022-09-29 11:30:55 +02:00
slub.c	MM patches for 6.2-rc1.	2022-12-13 19:29:45 -08:00
sparse-vmemmap.c	mm/sparse-vmemmap: generalise vmemmap_populate_hugepages()	2022-12-11 18:12:12 -08:00
sparse.c	mm/hwpoison: introduce per-memory_block hwpoison counter	2022-11-08 17:37:22 -08:00
swap_cgroup.c	mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled	2022-10-03 14:03:36 -07:00
swap_slots.c	mm/swap: convert put_swap_page() to put_swap_folio()	2022-10-03 14:02:46 -07:00
swap_state.c	swap: avoid holding swap reference in swap_cache_get_folio	2023-01-18 17:12:45 -08:00
swap.c	mm/swap: convert deactivate_page() to folio_deactivate()	2023-01-18 17:12:47 -08:00
swap.h	mm: convert find_get_incore_page() to filemap_get_incore_folio()	2022-11-08 17:37:18 -08:00
swapfile.c	swapfile: get rid of volatile and avoid redundant read	2023-01-18 17:12:44 -08:00
truncate.c	folio-compat: remove lru_cache_add()	2022-12-11 18:12:13 -08:00
usercopy.c	mm: use kstrtobool() instead of strtobool()	2022-11-30 15:58:45 -08:00
userfaultfd.c	mm/mprotect: drop pgprot_t parameter from change_protection()	2023-01-18 17:12:50 -08:00
util.c	mm: new primitive kvmemdup()	2023-01-18 17:12:47 -08:00
vmalloc.c	mm: vmalloc: replace BUG_ON() by WARN_ON_ONCE()	2023-01-18 17:12:48 -08:00
vmpressure.c
vmscan.c	mm: multi-gen LRU: simplify arch_has_hw_pte_young() check	2023-01-18 17:12:49 -08:00
vmstat.c	mm: vmscan: split khugepaged stats from direct reclaim stats	2022-11-30 15:58:41 -08:00
workingset.c	mm: multi-gen LRU: rename lru_gen_struct to lru_gen_folio	2023-01-18 17:12:48 -08:00
z3fold.c	zpool: clean out dead code	2022-12-11 18:12:10 -08:00
zbud.c	zpool: clean out dead code	2022-12-11 18:12:10 -08:00
zpool.c	zpool: clean out dead code	2022-12-11 18:12:10 -08:00
zsmalloc.c	zsmalloc: implement writeback mechanism for zsmalloc	2022-12-11 18:12:10 -08:00
zswap.c	zswap: fix writeback lock ordering for zsmalloc	2022-12-11 18:12:09 -08:00