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linux/kernel
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Natalie Vock 34f3e25992 cgroup,cgroup/dmem: Add (dmem_)cgroup_common_ancestor helper 
This helps to find a common subtree of two resources, which is important
when determining whether it's helpful to evict one resource in favor of
another.

To facilitate this, add a common helper to find the ancestor of two
cgroups using each cgroup's ancestor array.

Tested-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Signed-off-by: Natalie Vock <natalie.vock@gmx.de>
Link: https://patch.msgid.link/20260804-dmemcg-aggressive-protect-v8-2-07af96681bf8@gmx.de
2026-08-05 10:34:42 +02:00
..
bpf
bpf: Prefer dirty packs for eBPF allocations
2026-07-01 10:34:41 +02:00
cgroup
cgroup,cgroup/dmem: Add (dmem_)cgroup_common_ancestor helper
2026-08-05 10:34:42 +02:00
configs
slab: support for compiler-assisted type-based slab cache partitioning
2026-05-14 10:44:09 +02:00
debug
kgdb: update outdated references to kgdb_wait()
2026-04-21 16:41:54 +01:00
dma
Merge tag 'dma-mapping-7.2-2026-06-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
2026-06-17 12:20:21 -07:00
entry
futex: Provide infrastructure to plug the non contended robust futex unlock race
2026-06-03 11:38:52 +02:00
events
Merge tag 'drm-xe-next-2026-07-03' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next
2026-07-07 15:19:56 +10:00
futex
futex/requeue: Revert "Prevent NULL pointer dereference in remove_waiter() on self-deadlock""
2026-07-02 22:14:08 +02:00
gcov
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
irq
genirq/msi: Correct CONFIG_PCI_MSI_ARCH_FALLBACKS macro name in comment
2026-06-22 22:32:01 +02:00
kcsan
kcsan: test: Adjust "expect" allocation type for kmalloc_obj
2026-02-26 09:54:08 -08:00
livepatch
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
liveupdate
liveupdate: Remove limit on the number of files per session
2026-06-03 21:15:46 +03:00
locking
locking/rt: Fix the incorrect RCU protection in rt_spin_unlock()
2026-06-21 11:51:13 +02:00
module
module: decompress: check return value of module_extend_max_pages()
2026-06-04 16:37:32 +00:00
power
Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2026-06-19 10:14:34 -07:00
printk
printk: fix typos in comments
2026-06-02 15:36:06 +02:00
rcu
Merge tag 'timers-nohz-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
2026-06-15 13:48:52 +05:30
sched
Merge tag 'pm-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
2026-06-26 13:14:18 -07:00
time
time: Fix off-by-one in compat settimeofday() usec validation
2026-06-22 13:20:20 +02:00
trace
Merge tag 'probes-fixes-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2026-06-30 17:50:44 -10:00
unwind
Convert more 'alloc_obj' cases to default GFP_KERNEL arguments
2026-02-21 20:03:00 -08:00
.gitignore
kheaders: rebuild kheaders_data.tar.xz when a file is modified within a minute
2025-06-24 20:30:37 +09:00
acct.c
fs: move SB_I_USERNS_VISIBLE to FS_USERNS_MOUNT_RESTRICTED
2026-05-11 23:13:01 +02:00
async.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
audit_fsnotify.c
audit: fix recursive locking deadlock in audit_dupe_exe()
2026-05-27 19:15:34 -04:00
audit_tree.c
audit: use 'unsigned int' instead of 'unsigned'
2026-05-26 17:15:30 -04:00
audit_watch.c
audit: fix recursive locking deadlock in audit_dupe_exe()
2026-05-27 19:15:34 -04:00
audit.c
Merge tag 'audit-pr-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2026-06-17 12:55:09 +01:00
audit.h
audit: fix recursive locking deadlock in audit_dupe_exe()
2026-05-27 19:15:34 -04:00
auditfilter.c
audit: fix recursive locking deadlock in audit_dupe_exe()
2026-05-27 19:15:34 -04:00
auditsc.c
Merge tag 'audit-pr-20260615' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/audit
2026-06-17 12:55:09 +01:00
backtracetest.c
…
bounds.c
x86/asm: Remove ANNOTATE_DATA_SPECIAL usage
2025-12-03 16:53:19 +01:00
capability.c
capability: Remove unused has_capability
2025-03-07 22:03:09 -06:00
cfi.c
cfi: Move BPF CFI types and helpers to generic code
2025-07-31 18:23:53 -07:00
compat.c
…
configs.c
…
context_tracking.c
context_tracking: Remove rcu_task_trace_heavyweight_{enter,exit}()
2026-01-01 16:39:46 +08:00
cpu_pm.c
syscore: Pass context data to callbacks
2025-11-14 10:01:52 +01:00
cpu.c
Merge tag 'smp-urgent-2026-06-23' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2026-06-23 16:43:24 -07:00
crash_core_test.c
crash: add KUnit tests for crash_exclude_mem_range
2025-09-13 17:32:55 -07:00
crash_core.c
kernel/crash: remove inclusion of crypto/sha1.h
2026-03-27 21:19:46 -07:00
crash_dump_dm_crypt.c
crash_dump/dm-crypt: don't print in arch-specific code
2026-04-02 23:36:24 -07:00
crash_reserve.c
kernel/crash: remove inclusion of crypto/sha1.h
2026-03-27 21:19:46 -07:00
cred.c
exec_state: relocate dumpable information
2026-05-26 11:02:01 +02:00
delayacct.c
delayacct: fix uapi timespec64 definition
2026-02-08 00:13:32 -08:00
dma.c
…
elfcorehdr.c
…
exec_domain.c
…
exec_state.c
exec_state: relocate dumpable information
2026-05-26 11:02:01 +02:00
exit.c
Merge tag 'sched-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip
2026-06-15 14:50:18 +05:30
exit.h
…
extable.c
…
fail_function.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
fork.c
bpf,fork: wipe ->bpf_storage before bailouts that access it
2026-06-29 15:08:23 -07:00
freezer.c
freezer: Clarify that only cgroup1 freezer uses PM freezer
2025-10-30 20:10:27 +01:00
gen_kheaders.sh
kheaders: make it possible to override TAR
2025-08-06 10:23:36 +09:00
groups.c
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
hung_task.c
hung_task: explicitly report I/O wait state in log output
2026-03-27 21:19:40 -07:00
iomem.c
mm/memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()
2025-02-21 15:05:38 +01:00
irq_work.c
irq_work: Fix use-after-free in irq_work_single() on PREEMPT_RT
2026-05-11 16:28:04 +02:00
jump_label.c
jump_label: use ATOMIC_INIT() for initialization of .enabled
2026-03-16 13:16:48 +01:00
kallsyms_internal.h
kallsyms: Get rid of kallsyms relative base
2026-01-22 15:58:22 -07:00
kallsyms_selftest.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
kallsyms_selftest.h
…
kallsyms.c
Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2026-02-12 12:13:01 -08:00
kcmp.c
kcmp: improve performance adding an unlikely hint to task comparisons
2025-02-21 10:25:33 +01:00
Kconfig.freezer
…
Kconfig.hz
kernel: Fix "select" wording on HZ_250 description
2025-02-21 09:20:30 +01:00
Kconfig.kexec
liveupdate: kho: move to kernel/liveupdate
2025-11-27 14:24:33 -08:00
Kconfig.locks
…
Kconfig.preempt
sched: Further restrict the preemption modes
2026-01-08 12:43:57 +01:00
kcov.c
kcov: use WRITE_ONCE() for selftest mode stores
2026-06-04 14:49:26 -07:00
kexec_core.c
liveupdate: skip serialization for context-preserving kexec
2026-06-01 09:19:38 +03:00
kexec_elf.c
kexec: initialize ELF lowest address to ULONG_MAX
2025-03-16 22:30:47 -07:00
kexec_file.c
kexec: derive purgatory entry from symbol
2026-01-31 16:16:07 -08:00
kexec_internal.h
kexec: enable CMA based contiguous allocation
2025-08-02 12:01:38 -07:00
kexec.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
kheaders.c
kheaders: Simplify attribute through __BIN_ATTR_SIMPLE_RO()
2024-12-24 09:46:49 +01:00
kprobes.c
kprobes: Remove unneeded warnings from __arm_kprobe_ftrace()
2026-03-13 23:15:26 +09:00
kstack_erase.c
sysctl: remove __user qualifier from stack_erasing_sysctl buffer argument
2025-11-27 15:44:53 +01:00
ksyms_common.c
…
ksysfs.c
kernel: ksysfs: initialize kernel_kobj earlier
2026-04-03 19:39:52 +02:00
kthread.c
exec_state: relocate dumpable information
2026-05-26 11:02:01 +02:00
latencytop.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
Makefile
exec: introduce struct task_exec_state
2026-05-26 11:02:01 +02:00
module_signature.c
module: Give 'enum pkey_id_type' a more specific name
2026-03-24 21:42:37 +00:00
notifier.c
…
nscommon.c
nsfs: tighten permission checks for ns iteration ioctls
2026-02-27 22:00:08 +01:00
nsproxy.c
Merge tag 'vfs-7.1-rc1.mount.v2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2026-04-14 19:59:25 -07:00
nstree.c
nstree: tighten permission checks for listing
2026-02-27 22:00:11 +01:00
padata.c
padata: Put CPU offline callback in ONLINE section to allow failure
2026-03-22 11:17:59 +09:00
panic.c
bug/kunit: Core support for suppressing warning backtraces
2026-05-14 10:50:00 -06:00
params.c
kernel: param: initialize module_kset in a pure_initcall
2026-06-08 23:27:56 +02:00
pid_namespace.c
pid_namespace: allow opening pid_for_children before init was created
2026-03-20 14:44:26 +01:00
pid_sysctl.h
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
pid.c
pidfd: refuse access to tasks that have started exiting harder
2026-05-19 08:57:47 +02:00
profile.c
…
ptrace.c
exec_state: relocate dumpable information
2026-05-26 11:02:01 +02:00
range.c
…
reboot.c
treewide: Replace kmalloc with kmalloc_obj for non-scalar types
2026-02-21 01:02:28 -08:00
regset.c
…
relay.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
resource_kunit.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
resource.c
resource: Make resource_alignment() input const resource
2026-06-23 12:08:51 -05:00
rseq.c
rseq: Reenable performance optimizations conditionally
2026-05-06 17:40:27 +02:00
scftorture.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
scs.c
scs: fix a wrong parameter in __scs_magic
2025-11-12 10:00:13 -08:00
seccomp.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
signal.c
signal: clear JOBCTL_PENDING_MASK for caller in zap_other_threads()
2026-05-22 15:19:31 +02:00
smp.c
Merge tag 'trace-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
2026-04-17 09:43:12 -07:00
smpboot.c
sched/smp: Use the SMP version of idle_thread_set_boot_cpu()
2025-06-13 08:47:20 +02:00
smpboot.h
…
softirq.c
softirq: Prepare for deferred hrtimer rearming
2026-02-27 16:40:13 +01:00
stacktrace.c
…
static_call_inline.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
static_call.c
…
stop_machine.c
sched: Simplify ifdeffery around cpu_smt_mask
2026-05-19 12:17:37 +02:00
sys_ni.c
rseq: Implement sys_rseq_slice_yield()
2026-01-22 11:11:17 +01:00
sys.c
exec_state: relocate dumpable information
2026-05-26 11:02:01 +02:00
sysctl-test.c
sysctl: move u8 register test to lib/test_sysctl.c
2025-04-14 14:13:41 +02:00
sysctl.c
sysctl: fix uninitialized variable in proc_do_large_bitmap
2026-03-26 09:32:19 +01:00
task_work.c
task_work: Fix NMI race condition
2025-10-29 10:29:54 +01:00
taskstats.c
taskstats: retain dead thread stats in TGID queries
2026-05-28 21:24:41 -07:00
torture.c
torture: Add torture_sched_set_normal() for user-specified nice values
2026-05-24 09:38:47 +02:00
tracepoint.c
tracepoint: balance regfunc() on func_add() failure in tracepoint_add_func()
2026-04-14 05:17:02 -04:00
tsacct.c
tsacct: skip all kernel threads
2026-01-26 19:07:13 -08:00
ucount.c
Convert 'alloc_obj' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
uid16.c
…
uid16.h
…
umh.c
umh: replace use of system_unbound_wq with system_dfl_wq
2026-05-07 11:30:08 -10:00
up.c
…
user_namespace.c
Convert remaining multi-line kmalloc_obj/flex GFP_KERNEL uses
2026-02-22 08:26:33 -08:00
user-return-notifier.c
…
user.c
ns: drop custom reference count initialization for initial namespaces
2025-11-11 10:01:32 +01:00
utsname_sysctl.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
utsname.c
Merge tag 'namespace-6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-09-29 11:20:29 -07:00
vhost_task.c
vhost_task_create: kill unnecessary .exit_signal initialization
2026-06-10 02:17:00 -04:00
vmcore_info.c
Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2026-04-16 20:11:56 -07:00
watch_queue.c
Convert 'alloc_flex' family to use the new default GFP_KERNEL argument
2026-02-21 17:09:51 -08:00
watchdog_buddy.c
watchdog/hardlockup: improve buddy system detection timeliness
2026-03-27 21:19:47 -07:00
watchdog_perf.c
watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
2026-02-08 00:13:35 -08:00
watchdog.c
watchdog/hardlockup: improve buddy system detection timeliness
2026-03-27 21:19:47 -07:00
workqueue_internal.h
workqueue: Show in-flight work item duration in stall diagnostics
2026-03-05 07:27:48 -10:00
workqueue.c
Merge tag 'wq-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq
2026-06-17 11:57:44 +01:00