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Linus Torvalds ae80b40419 mm: validate the mm before dropping the mmap lock 
Commit 408579cd627a ("mm: Update do_vmi_align_munmap() return
semantics") made the return value and locking semantics of
do_vmi_align_munmap() more straightforward, but in the process it ended
up unlocking the mmap lock just a tad too early: the debug code doing
the mmap layout validation still needs to run with the lock held, or
things might change under it while it's trying to validate things.

So just move the unlocking to after the validate_mm() call.

Reported-by: kernel test robot <oliver.sang@intel.com>
Link: https://lore.kernel.org/lkml/ZKIsoMOT71uwCIZX@xsang-OptiPlex-9020/
Fixes: 408579cd627a ("mm: Update do_vmi_align_munmap() return semantics")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-07-03 10:08:50 -07:00
..
damon
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-06-23 16:58:19 -07:00
kasan
kasan,kmsan: remove __GFP_KSWAPD_RECLAIM usage from kasan/kmsan
2023-06-23 16:59:26 -07:00
kfence
mm/slab: introduce kmem_cache flag SLAB_NO_MERGE
2023-06-02 10:24:33 +02:00
kmsan
kasan,kmsan: remove __GFP_KSWAPD_RECLAIM usage from kasan/kmsan
2023-06-23 16:59:26 -07:00
backing-dev.c
mm: backing-dev: make bdi_class a static const structure
2023-06-23 16:59:27 -07:00
balloon_compaction.c
…
bootmem_info.c
…
cma_debug.c
…
cma_sysfs.c
mm: cma: make kobj_type structure constant
2023-03-28 16:20:06 -07:00
cma.c
mm/page_owner/cma: show pfn in cma/page_owner with hex format
2023-06-19 16:19:32 -07:00
cma.h
…
compaction.c
mm: compaction: convert to use a folio in isolate_migratepages_block()
2023-06-23 16:59:31 -07:00
debug_page_alloc.c
mm: page_alloc: split out DEBUG_PAGEALLOC
2023-06-09 16:25:23 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable,page_table_check: warn pte map fails
2023-06-19 16:19:15 -07:00
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
dmapool: create/destroy cleanup
2023-06-09 16:25:17 -07:00
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
mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
2022-11-22 18:50:44 -08:00
filemap.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
folio-compat.c
- Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of
2023-04-27 19:42:02 -07:00
frontswap.c
mm: zswap: support exclusive loads
2023-06-19 16:19:05 -07:00
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
mm/gup_test: start/stop/read functionality for PIN LONGTERM test
2022-11-08 17:37:15 -08:00
gup.c
Merge branch 'expand-stack'
2023-06-28 20:35:21 -07:00
highmem.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
hmm.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
huge_memory.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
hugetlb_cgroup.c
mm/hugetlb: increase use of folios in alloc_huge_page()
2023-02-13 15:54:27 -08:00
hugetlb_vmemmap.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
hugetlb_vmemmap.h
…
hugetlb.c
hugetlb: revert use of page_cache_next_miss()
2023-06-23 16:59:32 -07:00
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
IOMMU Updates for Linux 6.4
2023-04-30 13:00:38 -07:00
internal.h
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
…
Kconfig
slab updates for 6.5
2023-06-29 16:34:12 -07:00
Kconfig.debug
mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM
2023-05-29 16:14:28 +01:00
khugepaged.c
mm/khugepaged: fix regression in collapse_file()
2023-06-29 09:41:45 -07:00
kmemleak.c
lib/stackdepot, mm: rename stack_depot_want_early_init
2023-02-16 20:43:49 -08:00
ksm.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
list_lru.c
…
maccess.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
madvise.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
Makefile
mm: page_alloc: split out DEBUG_PAGEALLOC
2023-06-09 16:25:23 -07:00
mapping_dirty_helpers.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
memblock.c
memblock: small updates for 6.5-rc1
2023-06-29 23:21:20 -07:00
memcontrol.c
mm/memcontrol: do not tweak node in mem_cgroup_init()
2023-06-23 16:59:26 -07:00
memfd.c
memfd: check for non-NULL file_seals in memfd_create() syscall
2023-06-19 13:19:31 -07:00
memory_hotplug.c
mm: remove unnecessary pagevec includes
2023-06-23 16:59:31 -07:00
memory-failure.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
memory-tiers.c
memory tier: remove unneeded !IS_ENABLED(CONFIG_MIGRATION) check
2023-06-19 16:19:29 -07:00
memory.c
gup: avoid stack expansion warning for known-good case
2023-06-29 12:36:47 -07:00
mempolicy.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
mempool.c
mempool: do not use ksize() for poisoning
2022-11-30 15:58:41 -08:00
memremap.c
mm/memremap.c: fix outdated comment in devm_memremap_pages
2023-02-09 16:51:46 -08:00
memtest.c
mm/memtest: add results of early memtest to /proc/meminfo
2023-04-05 19:42:55 -07:00
migrate_device.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
migrate.c
mm: remove unnecessary pagevec includes
2023-06-23 16:59:31 -07:00
mincore.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
mlock.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
mm_init.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
mm_slot.h
…
mmap_lock.c
…
mmap.c
mm: validate the mm before dropping the mmap lock
2023-07-03 10:08:50 -07:00
mmu_gather.c
mm: prefer xxx_page() alloc/free functions for order-0 pages
2023-03-28 16:20:16 -07:00
mmu_notifier.c
mm/mmu_notifier: remove unused mmu_notifier_range_update_to_read_only export
2023-02-02 22:32:54 -08:00
mmzone.c
…
mprotect.c
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-06-23 16:58:19 -07:00
mremap.c
mm: Update do_vmi_align_munmap() return semantics
2023-07-01 08:10:56 -07:00
msync.c
…
nommu.c
xtensa: fix lock_mm_and_find_vma in case VMA not found
2023-07-01 08:00:05 -07:00
oom_kill.c
mm, oom: do not check 0 mask in out_of_memory()
2023-06-09 16:25:20 -07:00
page_alloc.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
page_counter.c
…
page_ext.c
mm/page_ext: init page_ext early if there are no deferred struct pages
2023-02-02 22:33:22 -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
swap: use __bio_add_page to add page to bio
2023-05-31 09:50:02 -06:00
page_isolation.c
mm: page_isolation: write proper kerneldoc
2023-06-19 16:18:59 -07:00
page_owner.c
mm/page_owner/cma: show pfn in cma/page_owner with hex format
2023-06-19 16:19:32 -07:00
page_poison.c
…
page_reporting.c
mm, treewide: redefine MAX_ORDER sanely
2023-04-05 19:42:46 -07:00
page_reporting.h
…
page_table_check.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
page_vma_mapped.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
page-writeback.c
mm: kill lock|unlock_page_memcg()
2023-06-19 16:19:33 -07:00
pagewalk.c
mm/pagewalk: walk_pte_range() allow for pte_offset_map()
2023-06-19 16:19:14 -07:00
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: memcontrol: rename memcg_kmem_enabled()
2023-02-16 20:43:56 -08:00
pgalloc-track.h
…
pgtable-generic.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
process_vm_access.c
mm/gup: remove unused vmas parameter from pin_user_pages_remote()
2023-06-09 16:25:25 -07:00
ptdump.c
mm: ptdump should use ptep_get_lockless()
2023-06-19 16:19:24 -07:00
readahead.c
mm: remove unnecessary pagevec includes
2023-06-23 16:59:31 -07:00
rmap.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
rodata_test.c
mm/rodata_test: use PAGE_ALIGNED() helper
2022-10-03 14:03:05 -07:00
secretmem.c
mm/mlock: rename mlock_future_check() to mlock_future_ok()
2023-06-09 16:25:38 -07:00
shmem.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
show_mem.c
mm: page_alloc: collect mem statistic into show_mem.c
2023-06-09 16:25:22 -07:00
shrinker_debug.c
Revert "mm: shrinkers: make count and scan in shrinker debugfs lockless"
2023-06-19 13:19:34 -07:00
shuffle.c
mm/shuffle: convert module_param_call to module_param_cb
2022-10-03 14:03:07 -07:00
shuffle.h
mm, treewide: redefine MAX_ORDER sanely
2023-04-05 19:42:46 -07:00
slab_common.c
slab updates for 6.5
2023-06-29 16:34:12 -07:00
slab.c
slab updates for 6.5
2023-06-29 16:34:12 -07:00
slab.h
slab updates for 6.5
2023-06-29 16:34:12 -07:00
slub.c
slab updates for 6.5
2023-06-29 16:34:12 -07:00
sparse-vmemmap.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
sparse.c
- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in
2023-06-28 10:59:38 -07:00
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
…
swap_state.c
mm: remove unnecessary pagevec includes
2023-06-23 16:59:31 -07:00
swap.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
swap.h
mm: remove the __swap_writepage return value
2023-02-02 22:33:33 -08:00
swapfile.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
truncate.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
usercopy.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
userfaultfd.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
util.c
mm: uninline kstrdup()
2023-04-08 13:45:37 -07:00
vmalloc.c
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-06-23 16:58:19 -07:00
vmpressure.c
…
vmscan.c
mm/vmscan: fix root proactive reclaim unthrottling unbalanced node
2023-06-23 16:59:32 -07:00
vmstat.c
- Yosry Ahmed brought back some cgroup v1 stats in OOM logs.
2023-06-28 10:28:11 -07:00
workingset.c
Multi-gen LRU: fix workingset accounting
2023-06-09 16:25:46 -07:00
z3fold.c
mm: zswap: remove shrink from zpool interface
2023-06-19 16:19:27 -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: zswap: remove shrink from zpool interface
2023-06-19 16:19:27 -07:00
zswap.c
mm: zswap: fix double invalidate with exclusive loads
2023-06-23 16:59:31 -07:00