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1bfbc267ec915e58c3723a2237bf067f0c4dffa8
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Alexei Starovoitov 1bfbc267ec bpf: Enable bpf_timer and bpf_wq in any context 
Refactor bpf_timer and bpf_wq to allow calling them from any context:
- add refcnt to bpf_async_cb
- map_delete_elem or map_free will drop refcnt to zero
  via bpf_async_cancel_and_free()
- once refcnt is zero timer/wq_start is not allowed to make sure
  that callback cannot rearm itself
- if in_hardirq defer to start/cancel operations to irq_work

Co-developed-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Mykyta Yatsenko <yatsenko@meta.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Link: https://lore.kernel.org/bpf/20260201025403.66625-2-alexei.starovoitov@gmail.com
2026-02-03 16:58:46 -08:00
..
bpf
bpf: Enable bpf_timer and bpf_wq in any context
2026-02-03 16:58:46 -08:00
cgroup
cgroup: Eliminate cgrp_ancestor_storage in cgroup_root
2026-01-07 15:11:03 -10:00
configs
hung_task: panic when there are more than N hung tasks at the same time
2025-11-12 10:00:14 -08:00
debug
kdb: Adapt kdb_msg_write to work with NBCON consoles
2025-10-24 12:56:20 +02:00
dma
Merge tag 'dma-mapping-6.19-2025-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux
2025-12-11 08:14:23 +09:00
entry
rseq: Switch to TIF_RSEQ if supported
2025-11-04 08:35:37 +01:00
events
Merge tag 'perf-urgent-2026-01-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2026-01-11 06:55:27 -10:00
futex
Merge tag 'locking-futex-2025-12-10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-12-10 17:21:30 +09:00
gcov
gcov: add support for GCC 15
2025-11-09 21:19:44 -08:00
irq
treewide: Update email address
2026-01-11 06:09:11 -10:00
kcsan
Merge tag 'kcsan-20250929-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/melver/linux
2025-10-02 08:31:44 -07:00
livepatch
Merge tag 'livepatching-for-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching
2025-12-03 13:46:48 -08:00
liveupdate
mm: memfd_luo: add CONFIG_SHMEM dependency
2025-12-10 16:07:44 -08:00
locking
Merge tag 'rcu.release.v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
2025-12-03 12:18:07 -08:00
module
Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-12-06 14:01:20 -08:00
power
PM: hibernate: Fix crash when freeing invalid crypto compressor
2026-01-05 19:12:56 +01:00
printk
Merge tag 'soc-drivers-6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
2025-12-05 17:29:04 -08:00
rcu
Merge tag 'rcu.release.v6.19' of git://git.kernel.org/pub/scm/linux/kernel/git/rcu/linux
2025-12-03 12:18:07 -08:00
sched
Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf after rc5
2026-01-14 15:22:01 -08:00
time
treewide: Update email address
2026-01-11 06:09:11 -10:00
trace
ftrace: Fix direct_functions leak in update_ftrace_direct_del
2026-02-02 07:56:20 -08:00
unwind
unwind_user/x86: Teach FP unwind about start of function
2025-10-29 10:29:58 +01:00
.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
act: use credential guards in acct_write_process()
2025-11-04 12:36:49 +01:00
async.c
…
audit_fsnotify.c
VFS/audit: introduce kern_path_parent() for audit
2025-09-23 12:37:35 +02:00
audit_tree.c
Merge tag 'pull-mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2025-10-03 10:19:44 -07:00
audit_watch.c
VFS/audit: introduce kern_path_parent() for audit
2025-09-23 12:37:35 +02:00
audit.c
audit: fix skb leak when audit rate limit is exceeded
2025-09-10 19:55:00 -04:00
audit.h
audit: fix comment misindentation in audit.h
2025-10-22 19:28:06 -04:00
auditfilter.c
audit: Use kzalloc() instead of kmalloc()/memset() in audit_krule_to_data()
2025-11-07 16:38:34 -05:00
auditsc.c
audit: merge loops in __audit_inode_child()
2025-11-07 16:50:42 -05:00
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: Make RCU watch ct_kernel_exit_state() warning
2025-03-04 18:44:29 -08:00
cpu_pm.c
syscore: Pass context data to callbacks
2025-11-14 10:01:52 +01:00
cpu.c
cpu: Make atomic hotplug callbacks run with interrupts disabled on UP
2025-12-10 15:49:11 +09:00
crash_core_test.c
crash: add KUnit tests for crash_exclude_mem_range
2025-09-13 17:32:55 -07:00
crash_core.c
crash: fix crashkernel resource shrink
2025-11-15 10:52:01 -08:00
crash_dump_dm_crypt.c
crash_dump: retrieve dm crypt keys in kdump kernel
2025-05-21 10:48:21 -07:00
crash_reserve.c
crash: let architecture decide crash memory export to iomem_resource
2025-11-12 10:00:15 -08:00
cred.c
Merge tag 'kernel-6.19-rc1.cred' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
2025-12-01 13:45:41 -08:00
delayacct.c
delayacct: remove redundant code and adjust indentation
2025-05-27 19:40:33 -07:00
dma.c
…
elfcorehdr.c
…
exec_domain.c
…
exit.c
Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-12-06 14:01:20 -08:00
exit.h
…
extable.c
…
fail_function.c
…
fork.c
Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-12-06 14:01:20 -08:00
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
…
hung_task.c
hung_task: add hung_task_sys_info sysctl to dump sys info on task-hung
2025-11-20 14:03:43 -08:00
iomem.c
mm/memremap: Pass down MEMREMAP_* flags to arch_memremap_wb()
2025-02-21 15:05:38 +01:00
irq_work.c
kasan: make kasan_record_aux_stack_noalloc() the default behaviour
2025-01-13 22:40:36 -08:00
jump_label.c
jump_label: Use RCU in all users of __module_text_address().
2025-03-10 11:54:46 +01:00
kallsyms_internal.h
…
kallsyms_selftest.c
kallsyms: use kmalloc_array() instead of kmalloc()
2025-09-28 11:36:14 -07:00
kallsyms_selftest.h
…
kallsyms.c
kallsyms: Fix wrong "big" kernel symbol type read from procfs
2025-11-24 16:56:24 +01:00
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
softirq: Allow to drop the softirq-BKL lock on PREEMPT_RT
2025-09-17 16:25:41 +02:00
kcov.c
kcov: use write memory barrier after memcpy() in kcov_move_area()
2025-09-13 17:32:44 -07:00
kexec_core.c
kernel/kexec: fix IMA when allocation happens in CMA area
2025-12-23 11:23:14 -08:00
kexec_elf.c
kexec: initialize ELF lowest address to ULONG_MAX
2025-03-16 22:30:47 -07:00
kexec_file.c
x86/kexec: carry forward the boot DTB on kexec
2025-09-13 17:32:43 -07:00
kexec_internal.h
kexec: enable CMA based contiguous allocation
2025-08-02 12:01:38 -07:00
kexec.c
kexec: enable CMA based contiguous allocation
2025-08-02 12:01:38 -07:00
kheaders.c
kheaders: Simplify attribute through __BIN_ATTR_SIMPLE_RO()
2024-12-24 09:46:49 +01:00
kprobes.c
kprobes: Add missing kerneldoc for __get_insn_slot
2025-07-15 18:45:34 +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
kexec: move sysfs entries to /sys/kernel/kexec
2025-11-27 14:24:42 -08:00
kthread.c
kthread: Warn if mm_struct lacks user_ns in kthread_use_mm()
2025-12-24 21:32:58 +01:00
latencytop.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
Makefile
liveupdate: kho: move to kernel/liveupdate
2025-11-27 14:24:33 -08:00
module_signature.c
…
notifier.c
reboot: move reboot_notifier_list to kernel/reboot.c
2024-11-05 17:12:31 -08:00
nscommon.c
ns: rename is_initial_namespace()
2025-11-11 10:01:31 +01:00
nsproxy.c
nsproxy: fix free_nsproxy() and simplify create_new_namespaces()
2025-11-14 13:10:38 +01:00
nstree.c
nstree: fix kernel-doc comments for internal functions
2025-11-14 13:10:38 +01:00
padata.c
padata: remove __padata_list_init()
2025-11-14 18:15:49 +08:00
panic.c
Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-12-06 14:01:20 -08:00
params.c
params: Replace deprecated strcpy() with strscpy() and memcpy()
2025-08-16 21:47:25 +02:00
pid_namespace.c
pid: rely on common reference count behavior
2025-11-11 10:01:32 +01:00
pid_sysctl.h
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
pid.c
ns: drop custom reference count initialization for initial namespaces
2025-11-11 10:01:32 +01:00
profile.c
…
ptrace.c
rseq: Introduce struct rseq_data
2025-11-04 08:30:50 +01:00
range.c
…
reboot.c
Merge tag 'mm-nonmm-stable-2025-03-30-18-23' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 10:06:52 -07:00
regset.c
…
relay.c
relay: update relay to use mmap_prepare
2025-11-16 17:28:11 -08:00
resource_kunit.c
…
resource.c
Reinstate "resource: avoid unnecessary lookups in find_next_iomem_res()"
2025-11-27 14:24:45 -08:00
rseq.c
rseq: Switch to fast path processing on exit to user
2025-11-04 08:34:39 +01:00
scftorture.c
scftorture: Handle NULL argument passed to scf_add_to_free_list().
2024-11-14 16:09:51 -08:00
scs.c
scs: fix a wrong parameter in __scs_magic
2025-11-12 10:00:13 -08:00
seccomp.c
Merge tag 'perf-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
2025-09-30 11:11:21 -07:00
signal.c
signal: Move MMCID exit out of sighand lock
2025-11-25 19:45:40 +01:00
smp.c
smp: Introduce a helper function to check for pending IPIs
2025-11-19 18:06:50 +01:00
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: Allow to drop the softirq-BKL lock on PREEMPT_RT
2025-09-17 16:25:41 +02:00
stacktrace.c
…
static_call_inline.c
Merge tag 'modules-6.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux
2025-03-30 15:44:36 -07:00
static_call.c
…
stop_machine.c
sched/core: Fix migrate_swap() vs. hotplug
2025-07-01 15:02:03 +02:00
sys_ni.c
uprobes/x86: Add uprobe syscall to speed up uprobe
2025-08-21 20:09:20 +02:00
sys.c
Merge tag 'mm-nonmm-stable-2025-10-02-15-29' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-10-02 18:44:54 -07:00
sysctl-test.c
sysctl: move u8 register test to lib/test_sysctl.c
2025-04-14 14:13:41 +02:00
sysctl.c
sysctl: Wrap do_proc_douintvec with the public function proc_douintvec_conv
2025-11-27 15:45:38 +01:00
task_work.c
task_work: Fix NMI race condition
2025-10-29 10:29:54 +01:00
taskstats.c
fdget(), more trivial conversions
2024-11-03 01:28:06 -05:00
torture.c
torture: Delay CPU-hotplug operations until boot completes
2025-08-14 15:26:30 -07:00
tracepoint.c
tracepoint: Print the function symbol when tracepoint_debug is set
2025-03-21 15:30:10 -04:00
tsacct.c
pid: change bacct_add_tsk() to use task_ppid_nr_ns()
2025-08-19 13:38:20 +02:00
ucount.c
ucount: use atomic_long_try_cmpxchg() in atomic_long_inc_below()
2025-08-02 12:01:38 -07:00
uid16.c
…
uid16.h
…
umh.c
treewide: const qualify ctl_tables where applicable
2025-01-28 13:48:37 +01:00
up.c
…
user_namespace.c
ns: move ns type into struct ns_common
2025-09-25 09:23:54 +02:00
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: Take a reference on the task in struct vhost_task.
2025-09-21 17:44:20 -04:00
vmcore_info.c
vmcoreinfo: track and log recoverable hardware errors
2025-11-27 14:24:44 -08:00
watch_queue.c
watch_queue: Use local kmap in post_one_notification()
2025-11-19 12:17:28 +01:00
watchdog_buddy.c
watchdog: fix opencoded cpumask_next_wrap() in watchdog_next_cpu()
2025-07-31 11:28:03 -04:00
watchdog_perf.c
watchdog: skip checks when panic is in progress
2025-09-13 17:32:53 -07:00
watchdog.c
Merge tag 'mm-nonmm-stable-2025-12-06-11-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-12-06 14:01:20 -08:00
workqueue_internal.h
…
workqueue.c
workqueue: Don't rely on wq->rescuer to stop rescuer
2025-11-21 09:45:36 -10:00