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Hou Tao 1d8b82c613 bpf: Always use raw spinlock for hash bucket lock 
For a non-preallocated hash map on RT kernel, regular spinlock instead
of raw spinlock is used for bucket lock. The reason is that on RT kernel
memory allocation is forbidden under atomic context and regular spinlock
is sleepable under RT.

Now hash map has been fully converted to use bpf_map_alloc, and there
will be no synchronous memory allocation for non-preallocated hash map,
so it is safe to always use raw spinlock for bucket lock on RT. So
removing the usage of htab_use_raw_lock() and updating the comments
accordingly.

Signed-off-by: Hou Tao <houtao1@huawei.com>
Link: https://lore.kernel.org/r/20220921073826.2365800-1-houtao@huaweicloud.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
2022-09-21 18:08:54 -07:00
..
bpf
bpf: Always use raw spinlock for hash bucket lock
2022-09-21 18:08:54 -07:00
cgroup
Merge https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
2022-09-06 23:21:18 +02:00
configs
xen: branch for v6.0-rc1b
2022-08-14 09:28:54 -07:00
debug
Modules updates for v5.19-rc1
2022-05-26 17:13:43 -07:00
dma
remoteproc updates for v5.20
2022-08-08 15:16:29 -07:00
entry
context_tracking: Take NMI eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
events
Misc fixes to kprobes and the faddr2line script, plus a cleanup.
2022-08-06 17:28:12 -07:00
futex
drm for 5.19-rc1
2022-05-25 16:18:27 -07:00
gcov
gcov: Remove compiler version check
2021-12-02 17:25:21 +09:00
irq
irqchip/genirq updates for 5.20:
2022-07-28 12:36:35 +02:00
kcsan
kcsan: test: Add a .kunitconfig to run KCSAN tests
2022-07-22 09:22:59 -06:00
livepatch
Livepatching changes for 5.19
2022-06-02 08:55:01 -07:00
locking
RCU pull request for v5.20 (or whatever)
2022-08-02 19:12:45 -07:00
module
module: kunit: Load .kunit_test_suites section when CONFIG_KUNIT=m
2022-08-15 13:51:07 -06:00
power
Char / Misc driver changes for 6.0-rc1
2022-08-04 11:05:48 -07:00
printk
printk: do not wait for consoles when suspended
2022-07-15 10:52:11 +02:00
rcu
- The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
2022-08-05 16:32:45 -07:00
sched
wait_on_bit: add an acquire memory barrier
2022-08-26 09:30:25 -07:00
time
time: Correct the prototype of ns_to_kernel_old_timeval and ns_to_timespec64
2022-08-09 20:02:13 +02:00
trace
bpf: Prevent bpf program recursion for raw tracepoint probes
2022-09-21 18:05:44 -07:00
.gitignore
…
acct.c
kernel/acct: move acct sysctls to its own file
2022-04-06 13:43:44 -07:00
async.c
Revert "module, async: async_synchronize_full() on module init iff async is used"
2022-02-03 11:20:34 -08:00
audit_fsnotify.c
audit: fix potential double free on error path from fsnotify_add_inode_mark
2022-08-22 18:50:06 -04:00
audit_tree.c
audit: use fsnotify group lock helpers
2022-04-25 14:37:28 +02:00
audit_watch.c
fsnotify: pass flags argument to fsnotify_alloc_group()
2022-04-25 14:37:12 +02:00
audit.c
audit: make is_audit_feature_set() static
2022-06-13 14:08:57 -04:00
audit.h
audit: log AUDIT_TIME_* records only from rules
2022-02-22 13:51:40 -05:00
auditfilter.c
audit/stable-5.17 PR 20220110
2022-01-11 13:08:21 -08:00
auditsc.c
audit: move audit_return_fixup before the filters
2022-08-25 17:25:08 -04:00
backtracetest.c
…
bounds.c
…
capability.c
xfs: don't generate selinux audit messages for capability testing
2022-03-09 10:32:06 -08:00
cfi.c
context_tracking: Take IRQ eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
compat.c
arch: remove compat_alloc_user_space
2021-09-08 15:32:35 -07:00
configs.c
…
context_tracking.c
MAINTAINERS: Add Paul as context tracking maintainer
2022-07-05 13:33:00 -07:00
cpu_pm.c
context_tracking: Take IRQ eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
cpu.c
Intel Trust Domain Extensions
2022-05-23 17:51:12 -07:00
crash_core.c
vmcoreinfo: add kallsyms_num_syms symbol
2022-08-28 14:02:44 -07:00
crash_dump.c
…
cred.c
x86: Mark __invalid_creds() __noreturn
2022-03-15 10:32:44 +01:00
delayacct.c
delayacct: track delays from write-protect copy
2022-06-01 15:55:25 -07:00
dma.c
…
exec_domain.c
…
exit.c
exit: Fix typo in comment: s/sub-theads/sub-threads
2022-08-03 10:44:54 +02:00
extable.c
context_tracking: Take NMI eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
fail_function.c
…
fork.c
Tracing updates for 5.20 / 6.0
2022-08-05 09:41:12 -07:00
freezer.c
…
gen_kheaders.sh
kheaders: Have cpio unconditionally replace files
2022-05-08 03:16:59 +09:00
groups.c
security: Add LSM hook to setgroups() syscall
2022-07-15 18:21:49 +00:00
hung_task.c
kernel/hung_task: fix address space of proc_dohung_task_timeout_secs
2022-07-29 18:12:35 -07:00
iomem.c
…
irq_work.c
irq_work: use kasan_record_aux_stack_noalloc() record callstack
2022-04-15 14:49:55 -07:00
jump_label.c
jump_label: make initial NOP patching the special case
2022-06-24 09:48:55 +02:00
kallsyms_internal.h
kallsyms: move declarations to internal header
2022-07-17 17:31:39 -07:00
kallsyms.c
Updates to various subsystems which I help look after. lib, ocfs2,
2022-08-07 10:03:24 -07:00
kcmp.c
…
Kconfig.freezer
…
Kconfig.hz
…
Kconfig.locks
…
Kconfig.preempt
Revert "signal, x86: Delay calling signals in atomic on RT enabled kernels"
2022-03-31 10:36:55 +02:00
kcov.c
kcov: update pos before writing pc in trace function
2022-05-25 13:05:42 -07:00
kexec_core.c
kexec: drop weak attribute from functions
2022-07-15 12:21:16 -04:00
kexec_elf.c
…
kexec_file.c
Updates to various subsystems which I help look after. lib, ocfs2,
2022-08-07 10:03:24 -07:00
kexec_internal.h
…
kexec.c
kexec: avoid compat_alloc_user_space
2021-09-08 15:32:34 -07:00
kheaders.c
…
kmod.c
…
kprobes.c
kprobes: don't call disarm_kprobe() for disabled kprobes
2022-08-20 15:17:46 -07:00
ksysfs.c
kernel/ksysfs.c: use helper macro __ATTR_RW
2022-03-23 19:00:33 -07:00
kthread.c
kthread: make it clear that kthread_create_on_node() might be terminated by any fatal signal
2022-06-16 19:11:30 -07:00
latencytop.c
latencytop: move sysctl to its own file
2022-04-21 11:40:59 -07:00
Makefile
kernel: remove platform_has() infrastructure
2022-08-01 07:42:56 +02:00
module_signature.c
…
notifier.c
notifier: Add blocking/atomic_notifier_chain_register_unique_prio()
2022-05-19 19:30:30 +02:00
nsproxy.c
fs/exec: allow to unshare a time namespace on vfork+exec
2022-06-15 07:58:04 -07:00
padata.c
padata: replace cpumask_weight with cpumask_empty in padata.c
2022-01-31 11:21:46 +11:00
panic.c
linux-kselftest-kunit-5.20-rc1
2022-08-02 19:34:45 -07:00
params.c
kobject: remove kset from struct kset_uevent_ops callbacks
2021-12-28 11:26:18 +01:00
pid_namespace.c
kernel: pid_namespace: use NULL instead of using plain integer as pointer
2022-04-29 14:38:00 -07:00
pid.c
pid: add pidfd_get_task() helper
2021-10-14 13:29:18 +02:00
profile.c
profile: setup_profiling_timer() is moslty not implemented
2022-07-29 18:12:36 -07:00
ptrace.c
ptrace: fix clearing of JOBCTL_TRACED in ptrace_unfreeze_traced()
2022-07-09 11:06:19 -07:00
range.c
…
reboot.c
Merge branch 'rework/kthreads' into for-linus
2022-06-23 19:11:28 +02:00
regset.c
…
relay.c
relay: remove redundant assignment to pointer buf
2022-05-12 20:38:37 -07:00
resource_kunit.c
…
resource.c
resource: Introduce alloc_free_mem_region()
2022-07-21 17:19:25 -07:00
rseq.c
rseq: Kill process when unknown flags are encountered in ABI structures
2022-08-01 15:21:42 +02:00
scftorture.c
scftorture: Fix distribution of short handler delays
2022-04-11 17:07:29 -07:00
scs.c
kasan, vmalloc: only tag normal vmalloc allocations
2022-03-24 19:06:48 -07:00
seccomp.c
seccomp: Add wait_killable semantic to seccomp user notifier
2022-05-03 14:11:58 -07:00
signal.c
signal handling: don't use BUG_ON() for debugging
2022-07-07 09:53:43 -07:00
smp.c
locking/csd_lock: Change csdlock_debug from early_param to __setup
2022-07-19 11:40:00 -07:00
smpboot.c
cpu/hotplug: Allow the CPU in CPU_UP_PREPARE state to be brought up again.
2022-04-12 14:13:01 +02:00
smpboot.h
…
softirq.c
context_tracking: Take IRQ eqs entrypoints over RCU
2022-07-05 13:32:59 -07:00
stackleak.c
stackleak: add on/off stack variants
2022-05-08 01:33:09 -07:00
stacktrace.c
uaccess: remove CONFIG_SET_FS
2022-02-25 09:36:06 +01:00
static_call_inline.c
static_call: Don't make __static_call_return0 static
2022-04-05 09:59:38 +02:00
static_call.c
static_call: Don't make __static_call_return0 static
2022-04-05 09:59:38 +02:00
stop_machine.c
Scheduler changes in this cycle were:
2022-05-24 11:11:13 -07:00
sys_ni.c
kernel/sys_ni: add compat entry for fadvise64_64
2022-08-20 15:17:45 -07:00
sys.c
arm64/sme: Implement vector length configuration prctl()s
2022-04-22 18:50:54 +01:00
sysctl-test.c
…
sysctl.c
kernel/sysctl.c: Remove trailing white space
2022-08-08 09:01:36 -07:00
task_work.c
task_work: allow TWA_SIGNAL without a rescheduling IPI
2022-04-30 08:39:32 -06:00
taskstats.c
genetlink: start to validate reserved header bytes
2022-08-29 12:47:15 +01:00
torture.c
torture: Wake up kthreads after storing task_struct pointer
2022-02-01 17:24:39 -08:00
tracepoint.c
…
tsacct.c
taskstats: version 12 with thread group and exe info
2022-04-29 14:38:03 -07:00
ucount.c
ucounts: Handle wrapping in is_ucounts_overlimit
2022-02-17 09:11:57 -06:00
uid16.c
…
uid16.h
…
umh.c
kthread: Don't allocate kthread_struct for init and umh
2022-05-06 14:49:44 -05:00
up.c
…
user_namespace.c
ucounts: Fix systemd LimitNPROC with private users regression
2022-02-25 10:40:14 -06:00
user-return-notifier.c
…
user.c
fs/epoll: use a per-cpu counter for user's watches count
2021-09-08 11:50:27 -07:00
usermode_driver.c
blob_to_mnt(): kern_unmount() is needed to undo kern_mount()
2022-05-19 23:25:47 -04:00
utsname_sysctl.c
…
utsname.c
…
watch_queue.c
This was a moderately busy cycle for documentation, but nothing all that
2022-08-02 19:24:24 -07:00
watchdog_hld.c
Revert "printk: add functions to prefer direct printing"
2022-06-23 18:41:40 +02:00
watchdog.c
powerpc updates for 6.0
2022-08-06 16:38:17 -07:00
workqueue_internal.h
…
workqueue.c
drm for 5.20/6.0
2022-08-03 19:52:08 -07:00