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linux/mm
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Linus Torvalds d0b51bfb23 Revert "mm: shmem: don't truncate page if memory failure happens" 
This reverts commit b9d02f1bdd98f38e6e5ecacc9786a8f58f3f8b2c.

The error handling of that patch was fundamentally broken, and it needs
to be entirely re-done.

For example, in shmem_write_begin() it would call shmem_getpage(), then
ignore the error return from that, and look at the page pointer contents
instead.

And in shmem_read_mapping_page_gfp(), the patch tested PageHWPoison() on
a page pointer that two lines earlier had potentially been set as an
error pointer.

These issues could be individually fixed, but when it has this many
issues, I'm just reverting it instead of waiting for fixes.

Link: https://lore.kernel.org/linux-mm/20211111084617.6746-1-ajaygargnsit@gmail.com/
Reported-by: Ajay Garg <ajaygargnsit@gmail.com>
Reported-by: Jens Axboe <axboe@kernel.dk>
Cc: Yang Shi <shy828301@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-11-13 12:03:03 -08:00
..
damon
mm/damon: remove return value from before_terminate callback
2021-11-06 13:30:46 -07:00
kasan
kasan: add kasan mode messages when kasan init
2021-11-11 09:34:35 -08:00
kfence
kfence: always use static branches to guard kfence_alloc()
2021-11-06 13:30:43 -07:00
backing-dev.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
balloon_compaction.c
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
bootmem_info.c
mm/bootmem_info.c: mark __init on register_page_bootmem_info_section
2021-09-03 09:58:14 -07:00
cleancache.c
Driver Core and debugfs changes for 5.3-rc1
2019-07-12 12:24:03 -07:00
cma_debug.c
mm/cma: change cma mutex to irq safe spinlock
2021-05-05 11:27:21 -07:00
cma_sysfs.c
mm: cma: support sysfs
2021-05-05 11:27:24 -07:00
cma.c
memblock: rename memblock_free to memblock_phys_free
2021-11-06 13:30:41 -07:00
cma.h
mm: cma: support sysfs
2021-05-05 11:27:24 -07:00
compaction.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
debug_page_ref.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
debug_vm_pgtable.c
mm: debug_vm_pgtable: don't use __P000 directly
2021-11-06 13:30:33 -07:00
debug.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
dmapool.c
mm/dmapool: use DEVICE_ATTR_RO macro
2021-06-29 10:53:52 -07:00
early_ioremap.c
mm/early_ioremap.c: remove redundant early_ioremap_shutdown()
2021-09-08 11:50:24 -07:00
fadvise.c
mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED
2020-10-13 18:38:29 -07:00
failslab.c
mm/failslab.c: by default, do not fail allocations with direct reclaim only
2019-07-12 11:05:43 -07:00
filemap.c
Merge branch 'akpm' (patches from Andrew)
2021-11-09 10:11:53 -08:00
folio-compat.c
mm/filemap: Add FGP_STABLE
2021-10-18 07:49:41 -04:00
frontswap.c
mm/mempool: minor coding style tweaks
2021-05-05 11:27:27 -07:00
gup_test.c
selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages
2021-05-05 11:27:26 -07:00
gup_test.h
selftests/vm: gup_test: fix test flag
2021-05-05 11:27:26 -07:00
gup.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
highmem.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
hmm.c
mm/hmm: bypass devmap pte when all pfn requested flags are fulfilled
2021-09-08 18:45:52 -07:00
huge_memory.c
Memory folios
2021-11-01 08:47:59 -07:00
hugetlb_cgroup.c
hugetlb_cgroup: remove unused hugetlb_cgroup_from_counter macro
2021-11-06 13:30:39 -07:00
hugetlb_vmemmap.c
mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON
2021-06-30 20:47:26 -07:00
hugetlb_vmemmap.h
mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate
2021-06-30 20:47:25 -07:00
hugetlb.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
hwpoison-inject.c
mm: hwpoison: don't drop slab caches for offlining non-LRU page
2021-09-03 09:58:15 -07:00
init-mm.c
mm: add setup_initial_init_mm() helper
2021-07-08 11:48:21 -07:00
internal.h
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
interval_tree.c
mm/interval_tree: add comments to improve code readability
2021-04-30 11:20:38 -07:00
io-mapping.c
mm: add a io_mapping_map_user helper
2021-04-30 11:20:39 -07:00
ioremap.c
mm: move ioremap_page_range to vmalloc.c
2021-09-08 11:50:24 -07:00
Kconfig
kernel/resource: disallow access to exclusive system RAM regions
2021-11-09 10:02:52 -08:00
Kconfig.debug
mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO
2020-12-15 12:13:46 -08:00
khugepaged.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
kmemleak.c
mm/kmemleak: allow __GFP_NOLOCKDEP passed to kmemleak's gfp
2021-09-08 18:45:53 -07:00
ksm.c
mm/migrate: Add folio_migrate_flags()
2021-10-18 07:49:39 -04:00
list_lru.c
mm: list_lru: only add memcg-aware lrus to the global lru list
2021-11-06 13:30:35 -07:00
maccess.c
ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault
2021-08-20 11:39:25 +01:00
madvise.c
mm: use pidfd_get_task()
2021-10-14 13:29:22 +02:00
Makefile
mm/util: Add folio_mapping() and folio_file_mapping()
2021-09-27 09:27:30 -04:00
mapping_dirty_helpers.c
mm/mapping_dirty_helpers: remove double Note in kerneldoc
2021-07-01 11:06:02 -07:00
memblock.c
arm64 fixes for -rc1
2021-11-10 11:29:30 -08:00
memcontrol.c
mm: unexport {,un}lock_page_memcg
2021-11-11 09:34:35 -08:00
memfd.c
mm,hugetlb: remove mlock ulimit for SHM_HUGETLB
2021-11-09 10:02:48 -08:00
memory_hotplug.c
mm/memory_hotplug: indicate MEMBLOCK_DRIVER_MANAGED with IORESOURCE_SYSRAM_DRIVER_MANAGED
2021-11-06 13:30:42 -07:00
memory-failure.c
Revert "mm: shmem: don't truncate page if memory failure happens"
2021-11-13 12:03:03 -08:00
memory.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
mempolicy.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
mempool.c
mm: remove spurious blkdev.h includes
2021-10-18 06:17:01 -06:00
memremap.c
mm/memcg: Convert mem_cgroup_uncharge() to take a folio
2021-09-27 09:27:31 -04:00
memtest.c
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
migrate.c
mm/migrate.c: remove MIGRATE_PFN_LOCKED
2021-11-11 09:34:35 -08:00
mincore.c
inode: make init and permission helpers idmapped mount aware
2021-01-24 14:27:16 +01:00
mlock.c
mm/memcg: Add folio_lruvec_relock_irq() and folio_lruvec_relock_irqsave()
2021-09-27 09:27:31 -04:00
mm_init.c
include/linux/page-flags-layout.h: cleanups
2021-04-30 11:20:42 -07:00
mmap_lock.c
mm: mmap_lock: fix disabling preemption directly
2021-07-23 17:43:28 -07:00
mmap.c
mm,hugetlb: remove mlock ulimit for SHM_HUGETLB
2021-11-09 10:02:48 -08:00
mmu_gather.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
mmu_notifier.c
mm/mmu_notifiers: ensure range_end() is paired with range_start()
2021-03-25 09:22:55 -07:00
mmzone.c
mm/lru: replace pgdat lru_lock with lruvec lock
2020-12-15 14:48:04 -08:00
mprotect.c
mm/mprotect.c: avoid repeated assignment in do_mprotect_pkey()
2021-11-06 13:30:36 -07:00
mremap.c
mm, hugepages: add mremap() support for hugepage backed vma
2021-11-06 13:30:39 -07:00
msync.c
mm/msync: exit early when the flags is an MS_ASYNC and start < vm_start
2021-04-30 11:20:37 -07:00
nommu.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
oom_kill.c
pidfd.v5.16
2021-11-10 16:02:08 -08:00
page_alloc.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
page_counter.c
mm: page_counter: mitigate consequences of a page_counter underflow
2021-04-30 11:20:38 -07:00
page_ext.c
mm/page_ext.c: fix a comment
2021-11-06 13:30:34 -07:00
page_idle.c
mm/idle_page_tracking: make PG_idle reusable
2021-09-08 11:50:24 -07:00
page_io.c
for-5.16/block-2021-10-29
2021-11-01 09:19:50 -07:00
page_isolation.c
mm/page_isolation: guard against possible putback unisolated page
2021-11-06 13:30:40 -07:00
page_owner.c
mm/page_owner.c: modify the type of argument "order" in some functions
2021-11-11 09:34:35 -08:00
page_poison.c
mm: page_poison: print page info when corruption is caught
2021-04-30 11:20:36 -07:00
page_reporting.c
mm/page_reporting: allow driver to specify reporting order
2021-06-29 10:53:47 -07:00
page_reporting.h
mm/page_reporting: export reporting order as module parameter
2021-06-29 10:53:47 -07:00
page_vma_mapped.c
mm: device exclusive memory access
2021-07-01 11:06:03 -07:00
page-writeback.c
folio: Add a function to get the host inode for a folio
2021-11-10 21:16:52 +00:00
pagewalk.c
mm: pagewalk: fix walk for hugepage tables
2021-06-29 10:53:49 -07:00
percpu-internal.h
Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu
2021-07-01 17:17:24 -07:00
percpu-km.c
percpu: flush tlb in pcpu_reclaim_populated()
2021-07-04 18:30:17 +00:00
percpu-stats.c
percpu: rework memcg accounting
2021-06-05 20:43:15 +00:00
percpu-vm.c
percpu: flush tlb in pcpu_reclaim_populated()
2021-07-04 18:30:17 +00:00
percpu.c
memblock: use memblock_free for freeing virtual pointers
2021-11-06 13:30:41 -07:00
pgalloc-track.h
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
pgtable-generic.c
mm/thp: fix __split_huge_pmd_locked() on shmem migration entry
2021-06-16 09:24:42 -07:00
process_vm_access.c
mm/process_vm_access.c: remove duplicate include
2021-05-05 11:27:27 -07:00
ptdump.c
mm: ptdump: fix build failure
2021-04-16 16:10:37 -07:00
readahead.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
rmap.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
rodata_test.c
mm/rodata_test.c: fix missing function declaration
2020-08-21 09:52:53 -07:00
secretmem.c
mm/secretmem: avoid letting secretmem_users drop to zero
2021-10-28 17:18:55 -07:00
shmem.c
Revert "mm: shmem: don't truncate page if memory failure happens"
2021-11-13 12:03:03 -08:00
shuffle.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
shuffle.h
mm/shuffle: fix section mismatch warning
2021-05-22 15:09:07 -10:00
slab_common.c
mm: remove HARDENED_USERCOPY_FALLBACK
2021-11-06 13:30:43 -07:00
slab.c
mm: remove HARDENED_USERCOPY_FALLBACK
2021-11-06 13:30:43 -07:00
slab.h
mm/memcg: fix NULL pointer dereference in memcg_slab_free_hook()
2021-07-30 10:14:39 -07:00
slob.c
mm: Don't build mm_dump_obj() on CONFIG_PRINTK=n kernels
2021-03-08 14:18:46 -08:00
slub.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
sparse-vmemmap.c
mm: remove redundant smp_wmb()
2021-11-06 13:30:36 -07:00
sparse.c
memblock: use memblock_free for freeing virtual pointers
2021-11-06 13:30:41 -07:00
swap_cgroup.c
mm: memcontrol: make swap tracking an integral part of memory control
2020-06-03 20:09:48 -07:00
swap_slots.c
mm: Replace deprecated CPU-hotplug functions.
2021-08-28 01:46:17 +02:00
swap_state.c
mm/workingset: Convert workingset_refault() to take a folio
2021-10-18 07:49:40 -04:00
swap.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
swapfile.c
Merge branch 'akpm' (patches from Andrew)
2021-11-06 14:08:17 -07:00
truncate.c
vfs: keep inodes with page cache off the inode shrinker LRU
2021-11-09 10:02:48 -08:00
usercopy.c
mm/usercopy.c: delete duplicated word
2020-08-12 10:57:58 -07:00
userfaultfd.c
Revert "mm: shmem: don't truncate page if memory failure happens"
2021-11-13 12:03:03 -08:00
util.c
mm/migrate: Add folio_migrate_copy()
2021-10-18 07:49:39 -04:00
vmacache.c
kernel: better document the use_mm/unuse_mm API contract
2020-06-10 19:14:18 -07:00
vmalloc.c
mm/vmalloc: introduce alloc_pages_bulk_array_mempolicy to accelerate memory allocation
2021-11-06 13:30:37 -07:00
vmpressure.c
mm/vmpressure: fix data-race with memcg->socket_pressure
2021-11-06 13:30:40 -07:00
vmscan.c
Merge branch 'akpm' (patches from Andrew)
2021-11-09 10:11:53 -08:00
vmstat.c
mm: vmstat.c: make extfrag_index show more pretty
2021-11-06 13:30:42 -07:00
workingset.c
Merge branch 'akpm' (patches from Andrew)
2021-11-09 10:11:53 -08:00
z3fold.c
mm/z3fold: add kerneldoc fields for z3fold_pool
2021-07-01 11:06:03 -07:00
zbud.c
mm/zbud: add kerneldoc fields for zbud_pool
2021-07-01 11:06:03 -07:00
zpool.c
mm: fix typos in comments
2021-05-07 00:26:35 -07:00
zsmalloc.c
mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration()
2021-11-06 13:30:43 -07:00
zswap.c
mm/zswap.c: fix two bugs in zswap_writeback_entry()
2021-06-30 20:47:31 -07:00