linux/mm
Yanfei Xu 073c78edf5 memory tier: fix deadlock warning while onlining pages
commit 823430c8e9 ("memory tier: consolidate the initialization of
memory tiers") introduces a locking change that use guard(mutex) to
instead of mutex_lock/unlock() for memory_tier_lock.  It unexpectedly
expanded the locked region to include the hotplug_memory_notifier(), as a
result, it triggers an locking dependency detected of ABBA deadlock. 
Exclude hotplug_memory_notifier() from the locked region to fixing it.

The deadlock scenario is that when a memory online event occurs, the
execution of memory notifier will access the read lock of the
memory_chain.rwsem, then the reigistration of the memory notifier in
memory_tier_init() acquires the write lock of the memory_chain.rwsem while
holding memory_tier_lock.  Then the memory online event continues to
invoke the memory hotplug callback registered by memory_tier_init(). 
Since this callback tries to acquire the memory_tier_lock, a deadlock
occurs.

In fact, this deadlock can't happen because memory_tier_init() always
executes before memory online events happen due to the subsys_initcall()
has an higher priority than module_init().

[  133.491106] WARNING: possible circular locking dependency detected
[  133.493656] 6.11.0-rc2+ #146 Tainted: G           O     N
[  133.504290] ------------------------------------------------------
[  133.515194] (udev-worker)/1133 is trying to acquire lock:
[  133.525715] ffffffff87044e28 (memory_tier_lock){+.+.}-{3:3}, at: memtier_hotplug_callback+0x383/0x4b0
[  133.536449]
[  133.536449] but task is already holding lock:
[  133.549847] ffffffff875d3310 ((memory_chain).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x60/0xb0
[  133.556781]
[  133.556781] which lock already depends on the new lock.
[  133.556781]
[  133.569957]
[  133.569957] the existing dependency chain (in reverse order) is:
[  133.577618]
[  133.577618] -> #1 ((memory_chain).rwsem){++++}-{3:3}:
[  133.584997]        down_write+0x97/0x210
[  133.588647]        blocking_notifier_chain_register+0x71/0xd0
[  133.592537]        register_memory_notifier+0x26/0x30
[  133.596314]        memory_tier_init+0x187/0x300
[  133.599864]        do_one_initcall+0x117/0x5d0
[  133.603399]        kernel_init_freeable+0xab0/0xeb0
[  133.606986]        kernel_init+0x28/0x2f0
[  133.610312]        ret_from_fork+0x59/0x90
[  133.613652]        ret_from_fork_asm+0x1a/0x30
[  133.617012]
[  133.617012] -> #0 (memory_tier_lock){+.+.}-{3:3}:
[  133.623390]        __lock_acquire+0x2efd/0x5c60
[  133.626730]        lock_acquire+0x1ce/0x580
[  133.629757]        __mutex_lock+0x15c/0x1490
[  133.632731]        mutex_lock_nested+0x1f/0x30
[  133.635717]        memtier_hotplug_callback+0x383/0x4b0
[  133.638748]        notifier_call_chain+0xbf/0x370
[  133.641647]        blocking_notifier_call_chain+0x76/0xb0
[  133.644636]        memory_notify+0x2e/0x40
[  133.647427]        online_pages+0x597/0x720
[  133.650246]        memory_subsys_online+0x4f6/0x7f0
[  133.653107]        device_online+0x141/0x1d0
[  133.655831]        online_memory_block+0x4d/0x60
[  133.658616]        walk_memory_blocks+0xc0/0x120
[  133.661419]        add_memory_resource+0x51d/0x6c0
[  133.664202]        add_memory_driver_managed+0xf5/0x180
[  133.667060]        dev_dax_kmem_probe+0x7f7/0xb40 [kmem]
[  133.669949]        dax_bus_probe+0x147/0x230
[  133.672687]        really_probe+0x27f/0xac0
[  133.675463]        __driver_probe_device+0x1f3/0x460
[  133.678493]        driver_probe_device+0x56/0x1b0
[  133.681366]        __driver_attach+0x277/0x570
[  133.684149]        bus_for_each_dev+0x145/0x1e0
[  133.686937]        driver_attach+0x49/0x60
[  133.689673]        bus_add_driver+0x2f3/0x6b0
[  133.692421]        driver_register+0x170/0x4b0
[  133.695118]        __dax_driver_register+0x141/0x1b0
[  133.697910]        dax_kmem_init+0x54/0xff0 [kmem]
[  133.700794]        do_one_initcall+0x117/0x5d0
[  133.703455]        do_init_module+0x277/0x750
[  133.706054]        load_module+0x5d1d/0x74f0
[  133.708602]        init_module_from_file+0x12c/0x1a0
[  133.711234]        idempotent_init_module+0x3f1/0x690
[  133.713937]        __x64_sys_finit_module+0x10e/0x1a0
[  133.716492]        x64_sys_call+0x184d/0x20d0
[  133.719053]        do_syscall_64+0x6d/0x140
[  133.721537]        entry_SYSCALL_64_after_hwframe+0x76/0x7e
[  133.724239]
[  133.724239] other info that might help us debug this:
[  133.724239]
[  133.730832]  Possible unsafe locking scenario:
[  133.730832]
[  133.735298]        CPU0                    CPU1
[  133.737759]        ----                    ----
[  133.740165]   rlock((memory_chain).rwsem);
[  133.742623]                                lock(memory_tier_lock);
[  133.745357]                                lock((memory_chain).rwsem);
[  133.748141]   lock(memory_tier_lock);
[  133.750489]
[  133.750489]  *** DEADLOCK ***
[  133.750489]
[  133.756742] 6 locks held by (udev-worker)/1133:
[  133.759179]  #0: ffff888207be6158 (&dev->mutex){....}-{3:3}, at: __driver_attach+0x26c/0x570
[  133.762299]  #1: ffffffff875b5868 (device_hotplug_lock){+.+.}-{3:3}, at: lock_device_hotplug+0x20/0x30
[  133.765565]  #2: ffff88820cf6a108 (&dev->mutex){....}-{3:3}, at: device_online+0x2f/0x1d0
[  133.768978]  #3: ffffffff86d08ff0 (cpu_hotplug_lock){++++}-{0:0}, at: mem_hotplug_begin+0x17/0x30
[  133.772312]  #4: ffffffff8702dfb0 (mem_hotplug_lock){++++}-{0:0}, at: mem_hotplug_begin+0x23/0x30
[  133.775544]  #5: ffffffff875d3310 ((memory_chain).rwsem){++++}-{3:3}, at: blocking_notifier_call_chain+0x60/0xb0
[  133.779113]
[  133.779113] stack backtrace:
[  133.783728] CPU: 5 UID: 0 PID: 1133 Comm: (udev-worker) Tainted: G           O     N 6.11.0-rc2+ #146
[  133.787220] Tainted: [O]=OOT_MODULE, [N]=TEST
[  133.789948] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 0.0.0 02/06/2015
[  133.793291] Call Trace:
[  133.795826]  <TASK>
[  133.798284]  dump_stack_lvl+0xea/0x150
[  133.801025]  dump_stack+0x19/0x20
[  133.803609]  print_circular_bug+0x477/0x740
[  133.806341]  check_noncircular+0x2f4/0x3e0
[  133.809056]  ? __pfx_check_noncircular+0x10/0x10
[  133.811866]  ? __pfx_lockdep_lock+0x10/0x10
[  133.814670]  ? __sanitizer_cov_trace_const_cmp8+0x1c/0x30
[  133.817610]  __lock_acquire+0x2efd/0x5c60
[  133.820339]  ? __pfx___lock_acquire+0x10/0x10
[  133.823128]  ? __dax_driver_register+0x141/0x1b0
[  133.825926]  ? do_one_initcall+0x117/0x5d0
[  133.828648]  lock_acquire+0x1ce/0x580
[  133.831349]  ? memtier_hotplug_callback+0x383/0x4b0
[  133.834293]  ? __pfx_lock_acquire+0x10/0x10
[  133.837134]  __mutex_lock+0x15c/0x1490
[  133.839829]  ? memtier_hotplug_callback+0x383/0x4b0
[  133.842753]  ? memtier_hotplug_callback+0x383/0x4b0
[  133.845602]  ? __this_cpu_preempt_check+0x21/0x30
[  133.848438]  ? __pfx___mutex_lock+0x10/0x10
[  133.851200]  ? __pfx_lock_acquire+0x10/0x10
[  133.853935]  ? global_dirty_limits+0xc0/0x160
[  133.856699]  ? __sanitizer_cov_trace_switch+0x58/0xa0
[  133.859564]  mutex_lock_nested+0x1f/0x30
[  133.862251]  ? mutex_lock_nested+0x1f/0x30
[  133.864964]  memtier_hotplug_callback+0x383/0x4b0
[  133.867752]  notifier_call_chain+0xbf/0x370
[  133.870550]  ? writeback_set_ratelimit+0xe8/0x160
[  133.873372]  blocking_notifier_call_chain+0x76/0xb0
[  133.876311]  memory_notify+0x2e/0x40
[  133.879013]  online_pages+0x597/0x720
[  133.881686]  ? irqentry_exit+0x3e/0xa0
[  133.884397]  ? __pfx_online_pages+0x10/0x10
[  133.887244]  ? __sanitizer_cov_trace_const_cmp8+0x1c/0x30
[  133.890299]  ? mhp_init_memmap_on_memory+0x7a/0x1c0
[  133.893203]  memory_subsys_online+0x4f6/0x7f0
[  133.896099]  ? __pfx_memory_subsys_online+0x10/0x10
[  133.899039]  ? xa_load+0x16d/0x2e0
[  133.901667]  ? __pfx_xa_load+0x10/0x10
[  133.904366]  ? __pfx_memory_subsys_online+0x10/0x10
[  133.907218]  device_online+0x141/0x1d0
[  133.909845]  online_memory_block+0x4d/0x60
[  133.912494]  walk_memory_blocks+0xc0/0x120
[  133.915104]  ? __pfx_online_memory_block+0x10/0x10
[  133.917776]  add_memory_resource+0x51d/0x6c0
[  133.920404]  ? __pfx_add_memory_resource+0x10/0x10
[  133.923104]  ? _raw_write_unlock+0x31/0x60
[  133.925781]  ? register_memory_resource+0x119/0x180
[  133.928450]  add_memory_driver_managed+0xf5/0x180
[  133.931036]  dev_dax_kmem_probe+0x7f7/0xb40 [kmem]
[  133.933665]  ? __pfx_dev_dax_kmem_probe+0x10/0x10 [kmem]
[  133.936332]  ? __pfx___up_read+0x10/0x10
[  133.938878]  dax_bus_probe+0x147/0x230
[  133.941332]  ? __pfx_dax_bus_probe+0x10/0x10
[  133.943954]  really_probe+0x27f/0xac0
[  133.946387]  ? __sanitizer_cov_trace_const_cmp1+0x1e/0x30
[  133.949106]  __driver_probe_device+0x1f3/0x460
[  133.951704]  ? parse_option_str+0x149/0x190
[  133.954241]  driver_probe_device+0x56/0x1b0
[  133.956749]  __driver_attach+0x277/0x570
[  133.959228]  ? __pfx___driver_attach+0x10/0x10
[  133.961776]  bus_for_each_dev+0x145/0x1e0
[  133.964367]  ? __pfx_bus_for_each_dev+0x10/0x10
[  133.967019]  ? __kasan_check_read+0x15/0x20
[  133.969543]  ? _raw_spin_unlock+0x31/0x60
[  133.972132]  driver_attach+0x49/0x60
[  133.974536]  bus_add_driver+0x2f3/0x6b0
[  133.977044]  driver_register+0x170/0x4b0
[  133.979480]  __dax_driver_register+0x141/0x1b0
[  133.982126]  ? __pfx_dax_kmem_init+0x10/0x10 [kmem]
[  133.984724]  dax_kmem_init+0x54/0xff0 [kmem]
[  133.987284]  ? __pfx_dax_kmem_init+0x10/0x10 [kmem]
[  133.989965]  do_one_initcall+0x117/0x5d0
[  133.992506]  ? __pfx_do_one_initcall+0x10/0x10
[  133.995185]  ? __kasan_kmalloc+0x88/0xa0
[  133.997748]  ? kasan_poison+0x3e/0x60
[  134.000288]  ? kasan_unpoison+0x2c/0x60
[  134.002762]  ? kasan_poison+0x3e/0x60
[  134.005202]  ? __asan_register_globals+0x62/0x80
[  134.007753]  ? __pfx_dax_kmem_init+0x10/0x10 [kmem]
[  134.010439]  do_init_module+0x277/0x750
[  134.012953]  load_module+0x5d1d/0x74f0
[  134.015406]  ? __pfx_load_module+0x10/0x10
[  134.017887]  ? __pfx_ima_post_read_file+0x10/0x10
[  134.020470]  ? __sanitizer_cov_trace_const_cmp8+0x1c/0x30
[  134.023127]  ? __sanitizer_cov_trace_const_cmp4+0x1a/0x20
[  134.025767]  ? security_kernel_post_read_file+0xa2/0xd0
[  134.028429]  ? __sanitizer_cov_trace_const_cmp4+0x1a/0x20
[  134.031162]  ? kernel_read_file+0x503/0x820
[  134.033645]  ? __pfx_kernel_read_file+0x10/0x10
[  134.036232]  ? __pfx___lock_acquire+0x10/0x10
[  134.038766]  init_module_from_file+0x12c/0x1a0
[  134.041291]  ? init_module_from_file+0x12c/0x1a0
[  134.043936]  ? __pfx_init_module_from_file+0x10/0x10
[  134.046516]  ? __this_cpu_preempt_check+0x21/0x30
[  134.049091]  ? __kasan_check_read+0x15/0x20
[  134.051551]  ? do_raw_spin_unlock+0x60/0x210
[  134.054077]  idempotent_init_module+0x3f1/0x690
[  134.056643]  ? __pfx_idempotent_init_module+0x10/0x10
[  134.059318]  ? __sanitizer_cov_trace_const_cmp4+0x1a/0x20
[  134.061995]  ? __fget_light+0x17d/0x210
[  134.064428]  __x64_sys_finit_module+0x10e/0x1a0
[  134.066976]  x64_sys_call+0x184d/0x20d0
[  134.069405]  do_syscall_64+0x6d/0x140
[  134.071926]  entry_SYSCALL_64_after_hwframe+0x76/0x7e

[yanfei.xu@intel.com: add mutex_lock/unlock() pair back]
  Link: https://lkml.kernel.org/r/20240830102447.1445296-1-yanfei.xu@intel.com
Link: https://lkml.kernel.org/r/20240827113614.1343049-1-yanfei.xu@intel.com
Fixes: 823430c8e9 ("memory tier: consolidate the initialization of memory tiers")
Signed-off-by: Yanfei Xu <yanfei.xu@intel.com>
Reviewed-by: "Huang, Ying" <ying.huang@intel.com>
Cc: Ho-Ren (Jack) Chuang <horen.chuang@linux.dev>
Cc: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-09-03 21:15:56 -07:00
..
damon mm/damon/lru_sort: adjust local variable to dynamic allocation 2024-09-01 20:25:45 -07:00
kasan kasan: fix bad call to unpoison_slab_object 2024-06-24 20:52:09 -07:00
kfence kfence: save freeing stack trace at calling time instead of freeing time 2024-09-01 20:26:12 -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: add cma_{alloc,free}_folio() 2024-09-03 21:15:36 -07:00
cma.h mm/cma: add sysfs file 'release_pages_success' 2024-02-22 10:24:57 -08:00
compaction.c mm:page_alloc: fix the NULL ac->nodemask in __alloc_pages_slowpath() 2024-09-03 21:15:47 -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: support only one page_type per page 2024-09-03 21:15:43 -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 mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC 2024-07-17 21:05:18 -07:00
failslab.c mm, slab: put should_failslab() back behind CONFIG_SHOULD_FAILSLAB 2024-07-17 21:05:18 -07:00
filemap.c mm: allow read-ahead with IOCB_NOWAIT set 2024-09-03 21:15:40 -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 follow_page() 2024-09-01 20:26:01 -07:00
highmem.c mm/highmem: make nr_free_highpages() return "unsigned long" 2024-07-03 19:30:06 -07:00
hmm.c mm: provide mm_struct and address to huge_ptep_get() 2024-07-12 15:52:15 -07:00
huge_memory.c x86: remove PG_uncached 2024-09-03 21:15:46 -07:00
hugetlb_cgroup.c mm: memcg: don't call propagate_protected_usage() needlessly 2024-09-01 20:25:50 -07:00
hugetlb_vmemmap.c mm/hugetlb_vmemmap: don't synchronize_rcu() without HVO 2024-09-01 20:25:45 -07:00
hugetlb_vmemmap.h mm: hugetlb_vmemmap: fix reference to nonexistent file 2023-10-25 16:47:14 -07:00
hugetlb.c mm/hugetlb: use __GFP_COMP for gigantic folios 2024-09-03 21:15:36 -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 printf: remove %pGt support 2024-09-03 21:15:42 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig x86: remove PG_uncached 2024-09-03 21:15:46 -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: khugepaged: support shmem mTHP collapse 2024-09-03 21:15:39 -07:00
kmemleak.c mm/kmemleak: use IS_ERR_PCPU() for pointer in the percpu address space 2024-09-03 21:15:38 -07:00
ksm.c mm: remove PageSwapCache 2024-09-03 21:15:44 -07:00
list_lru.c mm: list_lru: fix UAF for memory cgroup 2024-08-07 18:33:56 -07:00
maccess.c
madvise.c mseal: replace can_modify_mm_madv with a vma variant 2024-09-03 21:15:41 -07:00
Makefile mm: introduce numa_emulation 2024-09-03 21:15:31 -07:00
mapping_dirty_helpers.c
memblock.c mm: rework accept memory helpers 2024-09-01 20:26:07 -07:00
memcontrol-v1.c memcg: initiate deprecation of pressure_level 2024-09-01 20:26:21 -07:00
memcontrol-v1.h memcg: allocate v1 event percpu only on v1 deployment 2024-09-01 20:26:20 -07:00
memcontrol.c mm,memcg: provide per-cgroup counters for NUMA balancing operations 2024-09-03 21:15:36 -07:00
memfd.c mm/gup: introduce memfd_pin_folios() for pinning memfd folios 2024-07-12 15:52:09 -07:00
memory_hotplug.c mm/memory_hotplug: get rid of __ref 2024-09-01 20:25:56 -07:00
memory-failure.c mm/memory-failure: use raw_spinlock_t in struct memory_failure_cpu 2024-08-15 22:16:14 -07:00
memory-tiers.c memory tier: fix deadlock warning while onlining pages 2024-09-03 21:15:56 -07:00
memory.c mm,memcg: provide per-cgroup counters for NUMA balancing operations 2024-09-03 21:15:36 -07:00
mempolicy.c mm,memcg: provide per-cgroup counters for NUMA balancing operations 2024-09-03 21:15:36 -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: remove PageSwapCache 2024-09-03 21:15:44 -07:00
mincore.c mm: provide mm_struct and address to huge_ptep_get() 2024-07-12 15:52:15 -07:00
mlock.c Random number generator updates for Linux 6.11-rc1. 2024-07-24 10:29:50 -07:00
mm_init.c mm: drop CONFIG_HAVE_ARCH_NODEDATA_EXTENSION 2024-09-03 21:15:28 -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: avoid using vma_merge() for new VMAs 2024-09-03 21:15:54 -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 mm: move internal core VMA manipulation functions to own file 2024-09-01 20:25:54 -07:00
mmzone.c mm: improve code consistency with zonelist_* helper functions 2024-09-01 20:25:55 -07:00
mprotect.c mm/mprotect: replace can_modify_mm with can_modify_vma 2024-09-03 21:15:41 -07:00
mremap.c mm/mremap: replace can_modify_mm with can_modify_vma 2024-09-03 21:15:41 -07:00
mseal.c mm: remove can_modify_mm() 2024-09-03 21:15:42 -07:00
msync.c
nommu.c mm: remove follow_page() 2024-09-01 20:26:01 -07:00
numa_emulation.c mm: introduce numa_emulation 2024-09-03 21:15:31 -07:00
numa_memblks.c mm: make range-to-target_node lookup facility a part of numa_memblks 2024-09-03 21:15:32 -07:00
numa.c mm: make range-to-target_node lookup facility a part of numa_memblks 2024-09-03 21:15:32 -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:page_alloc: fix the NULL ac->nodemask in __alloc_pages_slowpath() 2024-09-03 21:15:47 -07:00
page_counter.c mm, memcg: cg2 memory{.swap,}.peak write handlers 2024-09-01 20:25:53 -07:00
page_ext.c mm: don't account memmap per-node 2024-08-15 22:16:14 -07:00
page_idle.c
page_io.c mm: store zero pages to be swapped out in a bitmap 2024-09-03 21:15:47 -07:00
page_isolation.c mm: remove migration for HugePage in isolate_single_pageblock() 2024-09-03 21:15:40 -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:page-writeback: use folio_next_index() helper in writeback_iter() 2024-09-03 21:15:46 -07:00
pagewalk.c mm/pagewalk: introduce folio_walk_start() + folio_walk_end() 2024-09-01 20:25:59 -07:00
percpu-internal.h mm: remove CONFIG_MEMCG_KMEM 2024-07-10 12:14:54 -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 percpu: remove pcpu_alloc_size() 2024-09-01 20:26:04 -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 Merge branch 'mm-hotfixes-stable' into mm-stable to pick up "mm: fix 2024-07-06 11:44:41 -07:00
rmap.c mm/rmap: use folio->_mapcount for small folios 2024-09-03 21:15:37 -07:00
rodata_test.c
secretmem.c
shmem_quota.c shmem_quota: build the object file conditionally to the config option 2024-09-01 20:25:45 -07:00
shmem.c mm: remove PageSwapCache 2024-09-03 21:15:44 -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: use min() to improve shrinker_debugfs_scan_write() 2024-09-03 21:15:40 -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 mm: krealloc: clarify valid usage of __GFP_ZERO 2024-09-03 21:15:37 -07:00
slab.h - 875fa64577da ("mm/hugetlb_vmemmap: fix race with speculative PFN 2024-07-21 17:15:46 -07:00
slub.c mm, slub: do not call do_slab_free for kfence object 2024-07-30 11:50:00 +02:00
sparse-vmemmap.c mm: don't account memmap per-node 2024-08-15 22:16:14 -07:00
sparse.c mm: don't account memmap per-node 2024-08-15 22:16:14 -07:00
swap_cgroup.c mm: attempt to batch free swap entries for zap_pte_range() 2024-09-03 21:15:33 -07:00
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: return the folio from swapin_readahead 2024-09-01 20:26:05 -07:00
swap.c mm/swap: take folio refcount after testing the LRU flag 2024-09-01 20:26:10 -07:00
swap.h mm: return the folio from swapin_readahead 2024-09-01 20:26:05 -07:00
swapfile.c mm: store zero pages to be swapped out in a bitmap 2024-09-03 21:15:47 -07:00
truncate.c mm: Fix missing folio invalidation calls during truncation 2024-08-24 16:09:16 +02:00
usercopy.c
userfaultfd.c userfaultfd: move core VMA manipulation logic to mm/userfaultfd.c 2024-09-01 20:25:53 -07:00
util.c mm: only enforce minimum stack gap size if it's sensible 2024-09-01 20:26:02 -07:00
vma_internal.h mm: remove duplicated include in vma_internal.h 2024-09-01 20:26:02 -07:00
vma.c mm: rework vm_ops->close() handling on VMA merge 2024-09-03 21:15:55 -07:00
vma.h mm: make vma_prepare() and friends static and internal to vma.c 2024-09-03 21:15:54 -07:00
vmalloc.c mm: vmalloc: refactor vm_area_alloc_pages() function 2024-09-03 21:15:55 -07:00
vmpressure.c eventfd: simplify eventfd_signal() 2023-11-28 14:08:38 +01:00
vmscan.c mm,memcg: provide per-cgroup counters for NUMA balancing operations 2024-09-03 21:15:36 -07:00
vmstat.c mm: print the promo watermark in zoneinfo 2024-09-01 20:25:59 -07:00
workingset.c cachestat: do not flush stats in recency check 2024-07-03 22:40:37 -07:00
z3fold.c mm/z3fold: add __percpu annotation to *unbuddied pointer in struct z3fold_pool 2024-09-01 20:25:56 -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 zsmalloc: use all available 24 bits of page_type 2024-09-03 21:15:43 -07:00
zswap.c mm: remove code to handle same filled pages 2024-09-03 21:15:47 -07:00