Andrew Morton 36b537e8f3 mm: revert "mm: shmem: fix data-race in shmem_getattr()" ...

commit d1aa0c04294e29883d65eac6c2f72fe95cc7c049 upstream.

Revert d949d1d14fa2 ("mm: shmem: fix data-race in shmem_getattr()") as
suggested by Chuck [1].  It is causing deadlocks when accessing tmpfs over
NFS.

As Hugh commented, "added just to silence a syzbot sanitizer splat: added
where there has never been any practical problem".

Link: https://lkml.kernel.org/r/ZzdxKF39VEmXSSyN@tissot.1015granger.net [1]
Fixes: d949d1d14fa2 ("mm: shmem: fix data-race in shmem_getattr()")
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Chuck Lever <chuck.lever@oracle.com>
Cc: Jeongjun Park <aha310510@gmail.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2024-12-05 10:59:29 +01:00

..

kasan

panic: Consolidate open-coded panic_on_warn checks

2023-02-06 07:49:46 +01:00

backing-dev.c

mm: bdi: initialize bdi_min_ratio when bdi is unregistered

2021-12-14 10:18:05 +01:00

balloon_compaction.c

…

bootmem.c

…

cleancache.c

…

cma_debug.c

…

cma.c

…

cma.h

…

compaction.c

mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations

2024-04-13 12:50:12 +02:00

debug_page_ref.c

…

debug.c

…

dmapool.c

…

early_ioremap.c

…

fadvise.c

…

failslab.c

…

filemap.c

mm: fs: initialize fsdata passed to write_begin/write_end interface

2022-11-25 17:40:29 +01:00

frame_vector.c

v4l2: don't fall back to follow_pfn() if pin_user_pages_fast() fails

2022-12-08 11:18:32 +01:00

frontswap.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

gup_benchmark.c

mm/gup_benchmark.c: prevent integer overflow in ioctl

2019-12-01 09:17:07 +01:00

gup.c

gup: document and work around "COW can break either way" issue

2021-04-28 13:16:51 +02:00

highmem.c

…

hmm.c

mm/memory_hotplug: shrink zones when offlining memory

2020-01-29 16:43:27 +01:00

huge_memory.c

mm/huge_memory.c: don't discard hugepage if other processes are mapping it

2021-07-20 16:15:58 +02:00

hugetlb_cgroup.c

mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()

2019-11-20 18:45:20 +01:00

hugetlb.c

mm,hugetlb: take hugetlb_lock before decrementing h->resv_huge_pages

2022-11-03 23:52:29 +09:00

hwpoison-inject.c

…

init-mm.c

…

internal.h

mm/thp: fix vma_address() if virtual address below file offset

2021-07-11 12:49:28 +02:00

interval_tree.c

…

Kconfig

…

Kconfig.debug

…

khugepaged.c

mm/khugepaged: invoke MMU notifiers in shmem/file collapse paths

2023-01-18 11:29:59 +01:00

kmemleak-test.c

…

kmemleak.c

Revert "mm: kmemleak: take a full lowmem check in kmemleak_*_phys()"

2022-09-15 12:17:02 +02:00

ksm.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

list_lru.c

mm: list_lru: set shrinker map bit when child nr_items is not zero

2020-12-11 13:25:02 +01:00

maccess.c

uaccess: Add non-pagefault user-space write function

2020-09-09 19:04:29 +02:00

madvise.c

…

Makefile

…

memblock.c

memblock: use kfree() to release kmalloced memblock regions

2022-03-02 11:38:14 +01:00

memcontrol.c

memcg_write_event_control(): fix a user-triggerable oops

2024-09-04 13:12:59 +02:00

memfd.c

memfd: fix F_SEAL_WRITE after shmem huge page allocated

2022-03-08 19:04:10 +01:00

memory_hotplug.c

mm/memory_hotplug: use "unsigned long" for PFN in zone_for_pfn_range()

2021-09-22 11:48:12 +02:00

memory-failure.c

mm/memory-failure: fix an incorrect use of tail pages

2024-04-13 12:50:09 +02:00

memory.c

x86/mm/pat: fix VM_PAT handling in COW mappings

2024-04-13 12:50:17 +02:00

mempolicy.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

mempool.c

…

memtest.c

memtest: use {READ,WRITE}_ONCE in memory scanning

2024-04-13 12:50:07 +02:00

migrate.c

mm/migrate: set swap entry values of THP tail pages properly.

2024-04-13 12:50:09 +02:00

mincore.c

…

mlock.c

…

mm_init.c

…

mmap.c

mm: Fix TLB flush for not-first PFNMAP mappings in unmap_region()

2022-09-20 12:26:48 +02:00

mmu_context.c

…

mmu_notifier.c

…

mmzone.c

…

mprotect.c

mm, numa: fix bad pmd by atomically check for pmd_trans_huge when marking page tables prot_numa

2020-03-11 14:15:00 +01:00

mremap.c

mmmremap.c: avoid pointless invalidate_range_start/end on mremap(old_size=0)

2022-04-15 14:15:05 +02:00

msync.c

…

nobootmem.c

…

nommu.c

x86/mm: split vmalloc_sync_all()

2020-03-25 08:06:13 +01:00

oom_kill.c

mm, oom: do not trigger out_of_memory from the #PF

2021-11-26 11:36:17 +01:00

page_alloc.c

mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations

2024-04-13 12:50:12 +02:00

page_counter.c

mm/page_counter.c: fix protection usage propagation

2020-08-21 11:05:33 +02:00

page_ext.c

…

page_idle.c

…

page_io.c

mm: fix unexpected zeroed page mapping with zram swap

2022-05-12 12:20:25 +02:00

page_isolation.c

…

page_owner.c

…

page_poison.c

…

page_vma_mapped.c

mm/thp: another PVMW_SYNC fix in page_vma_mapped_walk()

2021-07-11 12:49:30 +02:00

page-writeback.c

mm: avoid overflows in dirty throttling logic

2024-08-19 05:32:07 +02:00

pagewalk.c

mm: pagewalk: fix termination condition in walk_pte_range()

2020-10-01 13:14:32 +02:00

percpu-internal.h

…

percpu-km.c

…

percpu-stats.c

…

percpu-vm.c

…

percpu.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

pgtable-generic.c

mm/thp: fix __split_huge_pmd_locked() on shmem migration entry

2021-07-11 12:49:27 +02:00

process_vm_access.c

…

quicklist.c

…

readahead.c

vfs: fix readahead(2) on block devices

2023-11-20 10:29:16 +01:00

rmap.c

mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse

2022-09-05 10:26:34 +02:00

rodata_test.c

…

shmem.c

mm: revert "mm: shmem: fix data-race in shmem_getattr()"

2024-12-05 10:59:29 +01:00

slab_common.c

mm: slab: fix kmem_cache_create failed when sysfs node not destroyed

2021-07-28 11:13:44 +02:00

slab.c

…

slab.h

mm: kmemleak: slob: respect SLAB_NOLEAKTRACE flag

2021-11-26 11:36:23 +01:00

slob.c

…

slub.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

sparse-vmemmap.c

…

sparse.c

mm/sparse: add the missing sparse_buffer_fini() in error branch

2021-05-22 10:59:38 +02:00

swap_cgroup.c

…

swap_slots.c

…

swap_state.c

mm/swap_state: fix a data race in swapin_nr_pages

2020-10-01 13:14:47 +02:00

swap.c

treewide: Remove uninitialized_var() usage

2023-08-11 11:45:01 +02:00

swapfile.c

mm/swap: fix swap_info_struct race between swapoff and get_swap_pages()

2023-04-20 12:04:39 +02:00

truncate.c

mm/thp: unmap_mapping_page() to fix THP truncate_cleanup_page()

2021-07-11 12:49:28 +02:00

usercopy.c

mm/usercopy: return 1 from hardened_usercopy __setup() handler

2022-04-15 14:14:59 +02:00

userfaultfd.c

userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb

2024-03-01 13:06:08 +01:00

util.c

random: move randomize_page() into mm where it belongs

2022-06-25 11:49:12 +02:00

vmacache.c

…

vmalloc.c

mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()

2020-06-03 08:19:49 +02:00

vmpressure.c

…

vmscan.c

mm, vmscan: prevent infinite loop for costly GFP_NOIO | __GFP_RETRY_MAYFAIL allocations

2024-04-13 12:50:12 +02:00

vmstat.c

mm, vmstat: drop zone->lock in /proc/pagetypeinfo

2021-06-03 08:38:02 +02:00

workingset.c

…

z3fold.c

…

zbud.c

…

zpool.c

…

zsmalloc.c

zsmalloc: fix races between asynchronous zspage free and page migration

2022-06-06 08:24:21 +02:00

zswap.c

…