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Xiu Jianfeng c2fad56b3c mm: memcg: adjust the warning when seq_buf overflows 
Currently it uses WARN_ON_ONCE() if seq_buf overflows when user reads
memory.stat, the only advantage of WARN_ON_ONCE is that the splat is so
verbose that it gets noticed.  And also it panics the system if
panic_on_warn is enabled.  It seems like the warning is just an over
reaction and a simple pr_warn should just achieve the similar effect.

Link: https://lkml.kernel.org/r/20240628072333.2496527-1-xiujianfeng@huawei.com
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Suggested-by: Michal Hocko <mhocko@suse.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-07-04 18:05:59 -07:00
..
damon
mm/damon/paddr: initialize nr_succeeded in __damon_pa_migrate_folio_list()
2024-07-04 18:05:50 -07:00
kasan
kasan: fix bad call to unpoison_slab_object
2024-06-24 20:52:09 -07:00
kfence
mm: kfence: disable KMSAN when checking the canary
2024-07-03 19:30:23 -07:00
kmsan
kmsan: do not pass NULL pointers as 0
2024-07-03 19:30:26 -07:00
backing-dev.c
writeback: support retrieving per group debug writeback stats of bdi
2024-05-05 17:53:51 -07:00
balloon_compaction.c
mm: remove MIGRATE_SYNC_NO_COPY mode
2024-07-03 19:30:00 -07:00
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: add sysfs file 'release_pages_success'
2024-02-22 10:24:57 -08:00
cma.c
mm/cma: drop incorrect alignment check in cma_init_reserved_mem
2024-04-25 20:56:42 -07:00
cma.h
mm/cma: add sysfs file 'release_pages_success'
2024-02-22 10:24:57 -08:00
compaction.c
mm: handle profiling for fake memory allocations during compaction
2024-06-24 20:52:09 -07:00
debug_page_alloc.c
mm: page_alloc: consolidate free page accounting
2024-04-25 20:56:04 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable: drop RANDOM_ORVALUE trick
2024-06-15 10:43:08 -07:00
debug.c
mm/debug: print only page mapcount (excluding folio entire mapcount) in __dump_folio()
2024-05-05 17:53:31 -07:00
dmapool_test.c
mm/dmapool: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
dmapool.c
mm/mempool/dmapool: remove CONFIG_DEBUG_SLAB ifdefs
2023-12-05 11:17:58 +01:00
early_ioremap.c
…
execmem.c
mm/execmem, arch: convert remaining overrides of module_alloc to execmem
2024-05-14 00:31:43 -07:00
fadvise.c
…
fail_page_alloc.c
…
failslab.c
…
filemap.c
filemap: fix page_cache_next_miss() when no hole found
2024-07-03 19:30:27 -07:00
folio-compat.c
mm: remove page_mapping()
2024-07-03 19:29:59 -07:00
gup_test.c
…
gup_test.h
…
gup.c
mm: remove page_mkclean()
2024-07-03 19:30:17 -07:00
highmem.c
mm/highmem: make nr_free_highpages() return "unsigned long"
2024-07-03 19:30:06 -07:00
hmm.c
mm/treewide: replace pXd_huge() with pXd_leaf()
2024-04-25 20:55:46 -07:00
huge_memory.c
mm: refactor folio_undo_large_rmappable()
2024-07-04 18:05:50 -07:00
hugetlb_cgroup.c
mm/hugetlb_cgroup: switch to the new cftypes
2024-07-03 19:30:10 -07:00
hugetlb_vmemmap.c
mm: report per-page metadata information
2024-07-03 19:30:09 -07:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: fix reference to nonexistent file
2023-10-25 16:47:14 -07:00
hugetlb.c
mm/ksm: refactor out try_to_merge_with_zero_page()
2024-07-04 18:05:50 -07:00
hwpoison-inject.c
mm/hwpoison: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
init-mm.c
mm: Deprecate pasid field
2023-12-12 10:11:32 +01:00
internal.h
mm: refactor folio_undo_large_rmappable()
2024-07-04 18:05:50 -07:00
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
kmsan: disable KMSAN when DEFERRED_STRUCT_PAGE_INIT is enabled
2024-07-03 19:30:21 -07:00
Kconfig.debug
mm/slub: unify all sl[au]b parameters with "slab_$param"
2024-01-22 10:31:08 +01:00
khugepaged.c
mm: extend rmap flags arguments for folio_add_new_anon_rmap
2024-07-03 19:30:18 -07:00
kmemleak.c
mm: lift gfp_kmemleak_mask() to gfp.h
2024-05-19 14:40:44 -07:00
ksm.c
mm/ksm: optimize the chain()/chain_prune() interfaces
2024-07-04 18:05:51 -07:00
list_lru.c
mm/zswap: stop lru list shrinking when encounter warm region
2024-02-22 10:24:54 -08:00
maccess.c
…
madvise.c
mm/madvise: add MF_ACTION_REQUIRED to madvise(MADV_HWPOISON)
2024-07-03 19:29:57 -07:00
Makefile
mm: memcg: put cgroup v1-specific code under a config option
2024-07-04 18:05:54 -07:00
mapping_dirty_helpers.c
mm: fix clean_record_shared_mapping_range kernel-doc
2023-08-24 16:20:30 -07:00
memblock.c
memblock: use numa_valid_node() helper to check for invalid node ID
2024-06-16 10:17:57 +03:00
memcontrol-v1.c
mm: memcg: gather memcg1-specific fields initialization in memcg1_memcg_init()
2024-07-04 18:05:56 -07:00
memcontrol-v1.h
mm: memcg: gather memcg1-specific fields initialization in memcg1_memcg_init()
2024-07-04 18:05:56 -07:00
memcontrol.c
mm: memcg: adjust the warning when seq_buf overflows
2024-07-04 18:05:59 -07:00
memfd.c
mm/memfd: refactor memfd_tag_pins() and memfd_wait_for_pins()
2024-03-04 17:01:21 -08:00
memory_hotplug.c
mm/memory_hotplug: skip adjust_managed_page_count() for PageOffline() pages when offlining
2024-07-03 19:30:18 -07:00
memory-failure.c
mm/memory-failure: refactor log format in unpoison_memory
2024-07-03 19:30:19 -07:00
memory-tiers.c
memory tier: create CPUless memory tiers after obtaining HMAT info
2024-05-05 17:53:26 -07:00
memory.c
mm/migrate: move NUMA hinting fault folio isolation + checks under PTL
2024-07-03 19:30:26 -07:00
mempolicy.c
mm: mempolicy: use folio_alloc_mpol() in alloc_migration_target_by_mpol()
2024-07-03 19:29:53 -07:00
mempool.c
mm: fix xyz_noprof functions calling profiled functions
2024-06-05 19:19:26 -07:00
memremap.c
mm: convert put_devmap_managed_page_refs() to put_devmap_managed_folio_refs()
2024-05-05 17:53:49 -07:00
memtest.c
memtest: use {READ,WRITE}_ONCE in memory scanning
2024-03-13 12:12:21 -07:00
migrate_device.c
mm: extend rmap flags arguments for folio_add_new_anon_rmap
2024-07-03 19:30:18 -07:00
migrate.c
mm/migrate: move NUMA hinting fault folio isolation + checks under PTL
2024-07-03 19:30:26 -07:00
mincore.c
mm/swap: reduce swap cache search space
2024-07-03 19:29:56 -07:00
mlock.c
mm/mlock: implement folio_mlock_step() using folio_pte_batch()
2024-07-03 19:30:09 -07:00
mm_init.c
mm/mm_init.c: move build check on MAX_ZONELISTS out of ifdef
2024-07-03 19:30:19 -07:00
mm_slot.h
…
mmap_lock.c
mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer
2024-07-03 19:30:26 -07:00
mmap.c
mm: batch unlink_file_vma calls in free_pgd_range
2024-07-03 19:29:58 -07:00
mmu_gather.c
mm/mmu_gather: improve cond_resched() handling with large folios and expensive page freeing
2024-02-22 15:27:17 -08:00
mmu_notifier.c
mmu_notifier: remove the .change_pte() callback
2024-04-11 13:18:36 -04:00
mmzone.c
zswap: shrink zswap pool based on memory pressure
2023-12-12 10:57:02 -08:00
mprotect.c
mm: introduce pmd|pte_needs_soft_dirty_wp helpers for softdirty write-protect
2024-07-03 19:30:07 -07:00
mremap.c
mm: remove page_mkclean()
2024-07-03 19:30:17 -07:00
mseal.c
mseal: add mseal syscall
2024-05-23 19:40:26 -07:00
msync.c
…
nommu.c
The usual shower of singleton fixes and minor series all over MM,
2024-05-19 09:21:03 -07:00
oom_kill.c
memory: remove the now superfluous sentinel element from ctl_table array
2024-04-25 20:56:32 -07:00
page_alloc.c
mm: refactor folio_undo_large_rmappable()
2024-07-04 18:05:50 -07:00
page_counter.c
…
page_ext.c
mm: report per-page metadata information
2024-07-03 19:30:09 -07:00
page_idle.c
…
page_io.c
mm: zswap: handle incorrect attempts to load large folios
2024-07-03 19:30:09 -07:00
page_isolation.c
mm: page_isolation: prepare for hygienic freelists
2024-04-25 20:56:04 -07:00
page_owner.c
mm/page-owner: use gfp_nested_mask() instead of open coded masking
2024-05-19 14:40:44 -07:00
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/page_table_check: fix crash on ZONE_DEVICE
2024-06-15 10:43:04 -07:00
page_vma_mapped.c
mm: make page_mapped_in_vma conditional on CONFIG_MEMORY_FAILURE
2024-05-05 17:53:45 -07:00
page-writeback.c
mm: avoid overflows in dirty throttling logic
2024-07-03 19:30:15 -07:00
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
mm: percpu: add codetag reference into pcpuobj_ext
2024-04-25 20:55:56 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
percpu: clean up all mappings when pcpu_map_pages() fails
2024-04-25 20:55:49 -07:00
percpu.c
mm: percpu: enable per-cpu allocation tagging
2024-04-25 20:55:56 -07:00
pgalloc-track.h
…
pgtable-generic.c
mm: fix race between __split_huge_pmd_locked() and GUP-fast
2024-05-07 10:37:00 -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: add check_wx_pages debugfs attribute
2024-02-22 10:24:47 -08:00
readahead.c
readahead: simplify gotos in page_cache_sync_ra()
2024-07-03 19:30:28 -07:00
rmap.c
mm: remove folio_test_anon(folio)==false path in __folio_add_anon_rmap()
2024-07-03 19:30:18 -07:00
rodata_test.c
…
secretmem.c
mm/secretmem: use a folio in secretmem_fault()
2023-08-21 13:38:02 -07:00
shmem_quota.c
tmpfs: fix race on handling dquot rbtree
2024-03-26 11:07:23 -07:00
shmem.c
mm: shmem: add mTHP counters for anonymous shmem
2024-07-03 19:30:04 -07:00
show_mem.c
lib: add memory allocations report in show_mem()
2024-04-25 20:55:57 -07:00
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
The usual shower of singleton fixes and minor series all over MM,
2024-05-19 09:21:03 -07:00
slab.h
The usual shower of singleton fixes and minor series all over MM,
2024-05-19 09:21:03 -07:00
slub.c
mm: slub: disable KMSAN when checking the padding bytes
2024-07-03 19:30:23 -07:00
sparse-vmemmap.c
mm: report per-page metadata information
2024-07-03 19:30:09 -07:00
sparse.c
mm/sparse: nr_pages won't be 0
2024-07-03 19:30:19 -07:00
swap_cgroup.c
…
swap_slots.c
mm: swap: update get_swap_pages() to take folio order
2024-04-25 20:56:37 -07:00
swap_state.c
mm: swap: remove 'synchronous' argument to swap_read_folio()
2024-07-03 19:30:06 -07:00
swap.c
mm: refactor folio_undo_large_rmappable()
2024-07-04 18:05:50 -07:00
swap.h
mm: swap: remove 'synchronous' argument to swap_read_folio()
2024-07-03 19:30:06 -07:00
swapfile.c
mm: use folio_add_new_anon_rmap() if folio_test_anon(folio)==false
2024-07-03 19:30:18 -07:00
truncate.c
mm/vmscan: update stale references to shrink_page_list
2024-07-03 19:29:52 -07:00
usercopy.c
…
userfaultfd.c
mm: extend rmap flags arguments for folio_add_new_anon_rmap
2024-07-03 19:30:18 -07:00
util.c
hardening fixes for v6.10-rc5
2024-06-17 12:00:22 -07:00
vmalloc.c
vmalloc: modify the alloc_vmap_area() error message for better diagnostics
2024-07-03 19:30:18 -07:00
vmpressure.c
eventfd: simplify eventfd_signal()
2023-11-28 14:08:38 +01:00
vmscan.c
mm: add swappiness= arg to memory.reclaim
2024-07-04 18:05:55 -07:00
vmstat.c
mm: report per-page metadata information
2024-07-03 19:30:09 -07:00
workingset.c
mm: cleanup WORKINGSET_NODES in workingset
2024-05-07 10:36:59 -07:00
z3fold.c
mm: zpool: return pool size in pages
2024-04-25 20:55:48 -07:00
zbud.c
mm: zpool: return pool size in pages
2024-04-25 20:55:48 -07:00
zpool.c
mm: zpool: return pool size in pages
2024-04-25 20:55:48 -07:00
zsmalloc.c
mm/zsmalloc: use a proper page type
2024-07-03 19:30:16 -07:00
zswap.c
mm: zswap: handle incorrect attempts to load large folios
2024-07-03 19:30:09 -07:00