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Radostin Stoyanov 79b0243403 mm: memcg: add NULL check to obj_cgroup_put() 
JIRA: https://issues.redhat.com/browse/RHEL-113275

commit 91b71e78b8e478e1a9af36b15ff1d38810572866
Author: Yosry Ahmed <yosryahmed@google.com>
Date:   Sat Mar 16 01:58:03 2024 +0000

    mm: memcg: add NULL check to obj_cgroup_put()

    9 out of 16 callers perform a NULL check before calling obj_cgroup_put().
    Move the NULL check in the function, similar to mem_cgroup_put().  The
    unlikely() NULL check in current_objcg_update() was left alone to avoid
    dropping the unlikey() annotation as this a fast path.

    Link: https://lkml.kernel.org/r/20240316015803.2777252-1-yosryahmed@google.com
    Signed-off-by: Yosry Ahmed <yosryahmed@google.com>
    Acked-by: Johannes Weiner <hannes@cmpxchg.org>
    Acked-by: Roman Gushchin <roman.gushchin@linux.dev>
    Cc: Michal Hocko <mhocko@kernel.org>
    Cc: Muchun Song <muchun.song@linux.dev>
    Cc: Shakeel Butt <shakeel.butt@linux.dev>
    Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Radostin Stoyanov <rstoyano@redhat.com>
2026-01-23 08:32:52 +00:00
..
damon
mm/damon/lru_sort: reset enabled when DAMON start failed
2025-11-14 11:37:20 -05:00
kasan
kasan: use vmalloc_dump_obj() for vmalloc error reports
2025-11-14 11:37:20 -05:00
kfence
kfence: Defer the assignment of the local variable addr
2024-10-01 11:22:13 -04:00
kmsan
Merge: RHEL 9 MM subsystem proactive follow up fixes
2025-12-03 13:14:13 +00:00
backing-dev.c
writeback: remove redundant checks for root memcg
2024-10-01 11:21:33 -04:00
balloon_compaction.c
…
bootmem_info.c
bootmem: use kmemleak_free_part_phys in put_page_bootmem
2024-12-09 12:22:59 -05:00
cma_debug.c
…
cma_sysfs.c
…
cma.c
mm/cma: drop incorrect alignment check in cma_init_reserved_mem
2024-12-09 12:25:04 -05:00
cma.h
…
compaction.c
NFS: fix nfs_release_folio() to not deadlock via kcompactd writeback
2025-09-15 14:21:45 -04:00
debug_page_alloc.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-12-09 12:24:17 -05:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm/debug_vm_pgtable: clear page table entries at destroy_args()
2025-09-25 14:39:58 -03:00
debug.c
Merge: Enable shadow stack
2025-04-29 18:49:26 -03:00
dmapool_test.c
…
dmapool.c
dmapool: create/destroy cleanup
2024-04-30 17:51:24 -06:00
early_ioremap.c
mm/early_ioremap: add null pointer checks to prevent NULL-pointer dereference
2025-11-17 12:26:31 -05:00
fadvise.c
Revert "mm: support POSIX_FADV_NOREUSE"
2025-03-04 09:24:02 -05:00
fail_page_alloc.c
fault-inject: improve build for CONFIG_FAULT_INJECTION=n
2024-12-17 22:59:23 +01:00
failslab.c
fault-inject: improve build for CONFIG_FAULT_INJECTION=n
2024-12-17 22:59:23 +01:00
filemap.c
mm: fix filemap_get_folios_contig returning batches of identical folios
2025-11-14 11:37:19 -05:00
folio-compat.c
filemap: Add fgf_t typedef
2024-07-12 12:34:59 -04:00
gup_test.c
mm/gup_test.c: convert verify_dma_pinned() to us folios
2024-09-05 20:36:57 -04:00
gup_test.h
…
gup.c
mm/gup: fix wrongly calculated returned value in fault_in_safe_writeable()
2025-11-14 11:37:19 -05:00
highmem.c
x86/kexec: use pr_err() instead of kexec_dprintk() when an error occurs
2024-12-23 09:35:34 +08:00
hmm.c
RDMA/core: Avoid hmm_dma_map_alloc() for virtual DMA devices
2025-10-14 10:22:10 -04:00
huge_memory.c
mm/huge_memory: fix dereferencing invalid pmd migration entry
2025-06-13 20:30:37 -04:00
hugetlb_cgroup.c
…
hugetlb_vmemmap.c
mm: ptep_get() conversion
2024-09-05 20:36:52 -04:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: fix reference to nonexistent file
2025-11-14 11:37:18 -05:00
hugetlb.c
mm: hugetlb: avoid soft lockup when mprotect to large memory area
2026-01-08 09:49:24 -05:00
hwpoison-inject.c
…
init-mm.c
mm: convert mm_lock_seq to a proper seqcount
2025-11-04 10:13:02 -05:00
internal.h
Merge: mm/gup, udmabuf: Complete memfd_pin_folios() for pinning memfd folios
2025-05-26 10:33:39 +02:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed
2024-10-01 11:17:53 -04:00
Kconfig
mm: introduce ARCH_SUPPORTS_HUGE_PFNMAP and special bits to pmd/pud
2025-03-26 22:00:44 -04:00
Kconfig.debug
mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM
2024-07-16 09:30:15 -04:00
khugepaged.c
mm: khugepaged: fix call hpage_collapse_scan_file() for anonymous vma
2025-04-18 08:39:57 -04:00
kmemleak.c
Merge: [RHEL 9.7] IOMMU and DMA Mapping API subsystem updates
2025-05-09 16:20:06 -03:00
ksm.c
mm/ksm: fix ksm_zero_pages accounting
2024-10-01 11:22:31 -04:00
list_lru.c
mm: list_lru: fix UAF for memory cgroup
2024-09-10 09:15:37 -04:00
maccess.c
…
madvise.c
mm,madvise,hugetlb: check for 0-length range after end address adjustment
2025-04-18 08:39:56 -04:00
Makefile
mm: memcg: introduce memcontrol-v1.c
2025-04-28 19:13:10 +01:00
mapping_dirty_helpers.c
mm: fix clean_record_shared_mapping_range kernel-doc
2024-10-01 11:21:58 -04:00
memblock.c
mm/memblock: repeat setting reserved region nid if array is doubled
2025-11-14 11:37:19 -05:00
memcontrol-v1.c
mm: memcg: move soft limit reclaim code to memcontrol-v1.c
2025-04-28 19:13:10 +01:00
memcontrol-v1.h
mm: memcg: move soft limit reclaim code to memcontrol-v1.c
2025-04-28 19:13:10 +01:00
memcontrol.c
mm: memcg: add NULL check to obj_cgroup_put()
2026-01-23 08:32:52 +00:00
memfd.c
mm/hugetlb: simplify refs in memfd_alloc_folio
2025-04-03 09:22:45 -07:00
memory_hotplug.c
Merge: Refresh s390x subsystem, enable virtio-mem support on s390x and dynamic update of vfio-ap mediated devices
2025-06-23 11:03:03 -03:00
memory-failure.c
mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn
2025-11-14 11:37:19 -05:00
memory-tiers.c
memory tiers: use default_dram_perf_ref_source in log message
2024-12-09 12:25:43 -05:00
memory.c
Merge: RHEL 9 MM subsystem proactive follow up fixes
2025-12-03 13:14:13 +00:00
mempolicy.c
mm: hugetlb: make the hugetlb migration strategy consistent
2025-05-06 12:00:30 -04:00
mempool.c
mempool: introduce mempool_use_prealloc_only
2024-11-28 16:18:44 -05:00
memremap.c
…
memtest.c
mm: memtest: convert to memtest_report_meminfo()
2024-10-01 11:21:31 -04:00
migrate_device.c
mm/migrate: Add migrate_device_pfns
2025-09-16 16:11:23 +02:00
migrate.c
mm/migrate: fix do_pages_stat in compat mode
2025-11-14 11:37:20 -05:00
mincore.c
fs: port inode_owner_or_capable() to mnt_idmap
2024-10-16 10:45:27 +08:00
mlock.c
mm/mlock: set the correct prev on failure
2024-12-09 12:25:57 -05:00
mm_init.c
mm/mm_init.c: print mem_init info after defer_init is done
2025-03-31 12:16:36 -04:00
mm_slot.h
…
mmap_lock.c
mm: mmap_lock: replace get_memcg_path_buf() with on-stack buffer
2024-12-09 12:25:20 -05:00
mmap.c
mm: respect mmap hint address when aligning for THP
2025-11-14 11:37:18 -05:00
mmu_gather.c
mm: fix kernel-doc warning from tlb_flush_rmaps()
2024-10-01 11:21:56 -04:00
mmu_notifier.c
…
mmzone.c
mm: remove page_cpupid_xchg_last()
2025-04-28 19:12:47 +01:00
mprotect.c
mm: mprotect: use a folio in change_pte_range()
2025-04-28 11:26:52 +01:00
mremap.c
mm/mremap: correctly handle partial mremap() of VMA starting at 0
2025-11-14 11:37:18 -05:00
msync.c
…
nommu.c
mm: Add vmalloc_huge_node()
2025-11-04 10:13:02 -05:00
oom_kill.c
mm: remove redundant K() macro definition
2024-10-01 11:20:53 -04:00
page_alloc.c
mm: pcp: increase pcp->free_count threshold to trigger free_high
2025-11-14 11:37:19 -05:00
page_counter.c
…
page_ext.c
mm/page_ext: move functions around for minor cleanups to page_ext
2024-10-01 11:19:00 -04:00
page_idle.c
…
page_io.c
mm: ignore data-race in __swap_writepage
2024-12-09 12:25:26 -05:00
page_isolation.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-12-09 12:24:17 -05:00
page_owner.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-12-09 12:24:17 -05:00
page_poison.c
mm/page_poison: remove unused page_ext.h from page_poison
2024-10-01 11:19:03 -04:00
page_reporting.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-12-09 12:24:17 -05:00
page_reporting.h
…
page_table_check.c
mm/page_table_check: support userfault wr-protect entries
2024-12-09 12:25:08 -05:00
page_vma_mapped.c
mm: correct stale comment of function check_pte
2024-10-01 11:18:02 -04:00
page-writeback.c
treewide, timers: Rename from_timer() to timer_container_of()
2025-11-05 10:06:30 +01:00
pagewalk.c
mm: enable page walking API to lock vmas during the walk
2024-04-30 17:51:27 -06:00
percpu-internal.h
Merge: percpu-internal/pcpu_chunk: re-layout pcpu_chunk structure to reduce false sharing
2024-05-27 13:49:28 +00:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c
percpu: scoped objcg protection
2024-12-09 12:22:58 -05:00
pgalloc-track.h
…
pgtable-generic.c
mm: fix race between __split_huge_pmd_locked() and GUP-fast
2024-12-09 12:25:09 -05:00
process_vm_access.c
Merge: Rebase kexec/kdump to upstream kernel v6.5
2024-05-27 13:52:25 +00:00
ptdump.c
mm: ptdump should use ptep_get_lockless()
2024-09-05 20:36:47 -04:00
readahead.c
mm: support order-1 folios in the page cache
2024-12-09 12:24:28 -05:00
rmap.c
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
2025-11-14 11:37:18 -05:00
rodata_test.c
…
secretmem.c
fs: export anon_inode_make_secure_inode() and fix secretmem LSM bypass
2025-08-29 09:19:45 -04:00
shmem_quota.c
tmpfs: fix race on handling dquot rbtree
2024-07-17 07:49:46 +02:00
shmem.c
mm: shmem: add missing shmem_unacct_size() in __shmem_file_setup()
2025-11-14 11:37:19 -05:00
show_mem.c
mm, treewide: introduce NR_PAGE_ORDERS
2024-12-09 12:24:14 -05:00
shrinker_debug.c
saner replacement for debugfs_rename()
2025-06-02 13:41:52 +02:00
shrinker.c
mm: shrinker: add infrastructure for dynamically allocating shrinker
2024-10-01 11:22:25 -04:00
shuffle.c
…
shuffle.h
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-12-09 12:24:17 -05:00
slab_common.c
mm: krealloc: Fix MTE false alarm in __do_krealloc
2024-12-09 12:25:55 -05:00
slab.c
Merge: io_uring: Update to upstream v6.10 + fixes
2025-01-13 18:58:47 +00:00
slab.h
mm/slub: Avoid list corruption when removing a slab from the full list
2025-01-08 18:16:46 -05:00
slub.c
mm: slub: avoid wake up kswapd in set_track_prepare
2025-10-31 11:56:30 -04:00
sparse-vmemmap.c
mm/vmemmap: allow architectures to override how vmemmap optimization works
2024-10-01 11:19:45 -04:00
sparse.c
drivers/base/memory: improve add_boot_memory_block()
2025-12-03 16:00:09 -05:00
swap_cgroup.c
…
swap_slots.c
…
swap_state.c
mm/swap_state: update zswap LRU's protection range with the folio locked
2024-12-09 12:24:21 -05:00
swap.c
mm: page_alloc: move mlocked flag clearance into free_pages_prepare()
2024-12-09 12:25:59 -05:00
swap.h
mm: convert swap_cluster_readahead and swap_vma_readahead to return a folio
2024-12-09 12:24:09 -05:00
swapfile.c
mm/swapfile: skip HugeTLB pages for unuse_vma
2024-12-09 12:25:48 -05:00
truncate.c
mm: zero range of eof folio exposed by inode size extension
2025-09-25 12:29:30 -04:00
usercopy.c
…
userfaultfd.c
mm/uffd: add missing pte_mkdirty() to mfill_atomic_install_pte()
2025-11-11 14:59:42 -06:00
util.c
Revert "mm: fix BUG splat with kvmalloc + GFP_ATOMIC"
2025-07-02 15:38:08 -04:00
vmalloc.c
mm: Add vmalloc_huge_node()
2025-11-04 10:13:02 -05:00
vmpressure.c
net-memcg: Fix scope of sockmem pressure indicators
2024-10-01 11:21:42 -04:00
vmscan.c
mm: multi-gen LRU: use {ptep,pmdp}_clear_young_notify()
2025-11-14 11:37:18 -05:00
vmstat.c
mm, treewide: rename MAX_ORDER to MAX_PAGE_ORDER
2024-12-09 12:24:17 -05:00
workingset.c
mm: memcg: use rstat for non-hierarchical stats
2026-01-23 08:32:28 +00:00
z3fold.c
mm/z3fold: remove obsolete comment for struct z3fold_pool
2024-10-01 11:21:44 -04:00
zbud.c
mm: zswap: remove shrink from zpool interface
2024-06-28 12:24:02 -04:00
zpool.c
mm: zswap: remove shrink from zpool interface
2024-06-28 12:24:02 -04:00
zsmalloc.c
minmax: make generic MIN() and MAX() macros available everywhere
2024-11-18 10:30:14 -03:00
zswap.c
mm: memcg: add NULL check to obj_cgroup_put()
2026-01-23 08:32:52 +00:00