2
0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-12-23 12:43:55 +08:00
linux-next/kernel
Linus Torvalds 442489c219 Time, timers and related driver updates:
- Prevent unnecessary timer softirq invocations by extending the tracking
    of the next expiring timer in the timer wheel beyond the existing NOHZ
    functionality. The tracking overhead at enqueue time is within the
    noise, but on sensitive workloads the avoidance of the soft interrupt
    invocation is a measurable improvement.
 
  - The obligatory new clocksource driver for Ingenic X100 OST
 
  - The usual fixes, improvements, cleanups and extensions for newer chip
    variants all over the driver space.
 -----BEGIN PGP SIGNATURE-----
 
 iQJHBAABCgAxFiEEQp8+kY+LLUocC4bMphj1TA10mKEFAl8pD7ITHHRnbHhAbGlu
 dXRyb25peC5kZQAKCRCmGPVMDXSYoRIXD/9VRiGKHIP27O0aoPj9HGFiZyY+bXbC
 xv5HA9CTlJjG23JTZWg13Kk26l8+mzIJoH54nMnceVDdCwPb1e7iRFgefyHOgEW4
 oKpJnwqvGOA9cvAnu8Tl9oNNILUoS2k0dHDeGICMCOqqjycUoKGRPpiizsbXZ08x
 yOLUMktX0wtNnL6DOqOpvmfN+b3T8gO0fuNzgRcvcHZpamQxo7wN2P05mt9nmWLV
 zfEwyhn33Xy9toGPZfkbCYNzVSI3fkMXuMDIkLo5jOtt18i06AeUZov8Z0V7xk9B
 S1lu2HmP4PnX00/P7KB8LwtlhzhM/H7IxK4bxYJYlHmGcd2hJHjKdIfCg3bqo41d
 YmsIelukI3jLvnrB6YXyWx3mt1a8p/i3zf/+Fwqs81qV/60FXhp0zD2QnltJEEC3
 INXrb93CkC5vMqOs0otizL5cPnPhTS0fMe/GhnHlsteUXlqEeJ1HU5f+j0FFaIJA
 h+dEPT57eJwDyuh6iWNHjvAI/HtLSBTsHC0CPWa+DxHKxzItZWpiVl+EEw5ofepX
 zJyf8nxq1nOMDOROCiTxdbyp4yacDk3dak/trbRZCfX9fapSuzJFzDRCM0Ums2lH
 lh12jR9nRZgKb5atC31UUpw4HYZfvcbj2NGr27SAx9b3hh5q6SRW8yowL8tta1lK
 /Afs0OhmQS5Raw==
 =uJnp
 -----END PGP SIGNATURE-----

Merge tag 'timers-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Time, timers and related driver updates:

   - Prevent unnecessary timer softirq invocations by extending the
     tracking of the next expiring timer in the timer wheel beyond the
     existing NOHZ functionality.

     The tracking overhead at enqueue time is within the noise, but on
     sensitive workloads the avoidance of the soft interrupt invocation
     is a measurable improvement.

   - The obligatory new clocksource driver for Ingenic X100 OST

   - The usual fixes, improvements, cleanups and extensions for newer
     chip variants all over the driver space"

* tag 'timers-core-2020-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
  timers: Recalculate next timer interrupt only when necessary
  clocksource/drivers/ingenic: Add support for the Ingenic X1000 OST.
  dt-bindings: timer: Add Ingenic X1000 OST bindings.
  clocksource/drivers: Replace HTTP links with HTTPS ones
  clocksource/drivers/nomadik-mtu: Handle 32kHz clock
  clocksource/drivers/sh_cmt: Use "kHz" for kilohertz
  clocksource/drivers/imx: Add support for i.MX TPM driver with ARM64
  clocksource/drivers/ingenic: Add high resolution timer support for SMP/SMT.
  timers: Lower base clock forwarding threshold
  timers: Remove must_forward_clk
  timers: Spare timer softirq until next expiry
  timers: Expand clk forward logic beyond nohz
  timers: Reuse next expiry cache after nohz exit
  timers: Always keep track of next expiry
  timers: Optimize _next_timer_interrupt() level iteration
  timers: Add comments about calc_index() ceiling work
  timers: Move trigger_dyntick_cpu() to enqueue_timer()
  timers: Use only bucket expiry for base->next_expiry value
  timers: Preserve higher bits of expiration on index calculation
  clocksource/drivers/timer-atmel-tcb: Add sama5d2 support
  ...
2020-08-04 18:17:37 -07:00
..
bpf Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf 2020-07-31 17:19:47 -07:00
cgroup for-5.9/block-20200802 2020-08-03 11:57:03 -07:00
configs compiler: remove CONFIG_OPTIMIZE_INLINING entirely 2020-04-07 10:43:42 -07:00
debug Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
dma dma-mapping updates for 5.9 2020-08-04 17:29:57 -07:00
events Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
gcov treewide: replace '---help---' in Kconfig files with 'help' 2020-06-14 01:57:21 +09:00
irq The usual boring updates from the interrupt subsystem: 2020-08-04 18:11:58 -07:00
kcsan Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/core 2020-08-01 09:26:27 +02:00
livepatch livepatch: Make klp_apply_object_relocs static 2020-05-11 00:31:38 +02:00
locking Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
power Merge branches 'pm-sleep', 'pm-domains', 'powercap' and 'pm-tools' 2020-08-03 13:12:44 +02:00
printk Revert "kernel/printk: add kmsg SEEK_CUR handling" 2020-06-21 20:47:20 -07:00
rcu Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu 2020-07-31 00:15:53 +02:00
sched Power management updates for 5.9-rc1 2020-08-03 20:28:08 -07:00
time Time, timers and related driver updates: 2020-08-04 18:17:37 -07:00
trace Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
acct.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
async.c treewide: Remove uninitialized_var() usage 2020-07-16 12:35:15 -07:00
audit_fsnotify.c fsnotify: use helpers to access data by data_type 2020-03-23 18:19:06 +01:00
audit_tree.c audit: Use struct_size() helper in alloc_chunk 2020-06-17 16:43:11 -04:00
audit_watch.c \n 2020-04-06 08:58:42 -07:00
audit.c audit/stable-5.9 PR 20200803 2020-08-04 14:20:26 -07:00
audit.h revert: 1320a4052e ("audit: trigger accompanying records when no rules present") 2020-07-29 10:00:36 -04:00
auditfilter.c audit: fix a net reference leak in audit_list_rules_send() 2020-04-22 15:23:10 -04:00
auditsc.c audit/stable-5.9 PR 20200803 2020-08-04 14:20:26 -07:00
backtracetest.c treewide: Replace DECLARE_TASKLET() with DECLARE_TASKLET_OLD() 2020-07-30 11:15:58 -07:00
bounds.c
capability.c
compat.c uaccess: Selectively open read or write user access 2020-05-01 12:35:21 +10:00
configs.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
context_tracking.c context_tracking: Ensure that the critical path cannot be instrumented 2020-06-11 15:14:36 +02:00
cpu_pm.c kernel/cpu_pm: Fix uninitted local in cpu_pm 2020-05-15 11:44:34 -07:00
cpu.c The changes in this cycle are: 2020-06-03 13:06:42 -07:00
crash_core.c crash_core, vmcoreinfo: Append 'MAX_PHYSMEM_BITS' to vmcoreinfo 2020-07-02 17:56:11 +01:00
crash_dump.c crash_dump: Remove no longer used saved_max_pfn 2020-04-15 11:21:54 +02:00
cred.c exec: Teach prepare_exec_creds how exec treats uids & gids 2020-05-20 14:44:21 -05:00
delayacct.c
dma.c
elfcore.c
exec_domain.c
exit.c Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-08-04 14:27:25 -07:00
extable.c kernel/extable.c: use address-of operator on section symbols 2020-04-07 10:43:42 -07:00
fail_function.c
fork.c close-range-v5.9 2020-08-04 15:12:02 -07:00
freezer.c
futex.c Remove uninitialized_var() macro for v5.9-rc1 2020-08-04 13:49:43 -07:00
gen_kheaders.sh kbuild: add variables for compression tools 2020-06-06 23:42:01 +09:00
groups.c mm: remove the pgprot argument to __vmalloc 2020-06-02 10:59:11 -07:00
hung_task.c kernel/hung_task.c: introduce sysctl to print all traces when a hung task is detected 2020-06-08 11:05:56 -07:00
iomem.c
irq_work.c irq_work, smp: Allow irq_work on call_single_queue 2020-05-28 10:54:15 +02:00
jump_label.c
kallsyms.c Linux 5.8-rc7 2020-07-28 13:18:01 +02:00
kcmp.c kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve 2020-03-25 10:04:01 -05:00
Kconfig.freezer
Kconfig.hz
Kconfig.locks sched/rt, locking: Use CONFIG_PREEMPTION 2019-12-08 14:37:36 +01:00
Kconfig.preempt
kcov.c kcov: check kcov_softirq in kcov_remote_stop() 2020-06-10 19:14:17 -07:00
kexec_core.c kexec: add machine_kexec_post_load() 2020-01-08 16:32:55 +00:00
kexec_elf.c
kexec_file.c kexec: do not verify the signature without the lockdown or mandatory signature 2020-06-26 00:27:36 -07:00
kexec_internal.h kexec: add machine_kexec_post_load() 2020-01-08 16:32:55 +00:00
kexec.c kexec: add machine_kexec_post_load() 2020-01-08 16:32:55 +00:00
kheaders.c
kmod.c kmod: make request_module() return an error when autoloading is disabled 2020-04-10 15:36:22 -07:00
kprobes.c kprobes: Remove unnecessary module_mutex locking from kprobe_optimizer() 2020-07-28 13:19:05 +02:00
ksysfs.c
kthread.c Merge branch 'sched/urgent' 2020-07-08 11:38:59 +02:00
latencytop.c sysctl: pass kernel pointers to ->proc_handler 2020-04-27 02:07:40 -04:00
Makefile Merge branch 'exec-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2020-08-04 14:27:25 -07:00
module_signature.c
module_signing.c
module-internal.h
module.c Refactor kallsyms_show_value() users for correct cred 2020-07-09 13:09:30 -07:00
notifier.c mm: remove vmalloc_sync_(un)mappings() 2020-06-02 10:59:12 -07:00
nsproxy.c nsproxy: support CLONE_NEWTIME with setns() 2020-07-08 11:14:22 +02:00
padata.c padata: remove padata_parallel_queue 2020-07-23 17:34:18 +10:00
panic.c bug: Annotate WARN/BUG/stackfail as noinstr safe 2020-06-11 15:14:36 +02:00
params.c
pid_namespace.c pid_namespace: use checkpoint_restore_ns_capable() for ns_last_pid 2020-07-19 20:14:42 +02:00
pid.c cap-checkpoint-restore-v5.9 2020-08-04 15:02:07 -07:00
profile.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
ptrace.c ptrace: reintroduce usage of subjective credentials in ptrace_has_cap() 2020-01-18 13:51:39 +01:00
range.c
reboot.c arch: remove unicore32 port 2020-07-01 12:09:13 +03:00
relay.c mmap locking API: convert mmap_sem comments 2020-06-09 09:39:14 -07:00
resource.c /dev/mem: Revoke mappings when a driver claims the region 2020-05-27 11:10:05 +02:00
rseq.c rseq: Reject unknown flags on rseq unregister 2019-12-25 10:41:20 +01:00
scs.c scs: Report SCS usage in bytes rather than number of entries 2020-06-04 16:14:56 +01:00
seccomp.c seccomp: Introduce addfd ioctl to seccomp user notifier 2020-07-14 16:29:42 -07:00
signal.c signal: fix typo in dequeue_synchronous_signal() 2020-07-26 23:57:52 +02:00
smp.c smp: Fix a potential usage of stale nr_cpus 2020-07-22 10:22:04 +02:00
smpboot.c
smpboot.h
softirq.c tasklets API update for v5.9-rc1 2020-08-04 13:40:35 -07:00
stackleak.c gcc-plugins/stackleak: Use asm instrumentation to avoid useless register saving 2020-06-24 07:48:28 -07:00
stacktrace.c
stop_machine.c stop_machine: Make stop_cpus() static 2020-01-17 10:19:21 +01:00
sys_ni.c
sys.c prctl: exe link permission error changed from -EINVAL to -EPERM 2020-07-19 20:14:42 +02:00
sysctl_binary.c
sysctl-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
sysctl.c sched/uclamp: Add a new sysctl to control RT default boost value 2020-07-29 13:51:47 +02:00
task_work.c task_work: teach task_work_add() to do signal_wake_up() 2020-06-30 12:18:08 -06:00
taskstats.c
test_kprobes.c
torture.c torture: Dump ftrace at shutdown only if requested 2020-06-29 12:01:45 -07:00
tracepoint.c
tsacct.c tsacct: add 64-bit btime field 2019-12-18 18:07:31 +01:00
ucount.c ucount: Make sure ucounts in /proc/sys/user don't regress again 2020-04-07 21:51:27 +02:00
uid16.c
uid16.h
umh.c exec: Implement kernel_execve 2020-07-21 08:24:52 -05:00
up.c smp/up: Make smp_call_function_single() match SMP semantics 2020-02-07 15:34:12 +01:00
user_namespace.c nsproxy: add struct nsset 2020-05-09 13:57:12 +02:00
user-return-notifier.c
user.c user.c: make uidhash_table static 2020-06-04 19:06:24 -07:00
usermode_driver.c umd: Stop using split_argv 2020-07-07 11:58:59 -05:00
utsname_sysctl.c sysctl: pass kernel pointers to ->proc_handler 2020-04-27 02:07:40 -04:00
utsname.c nsproxy: add struct nsset 2020-05-09 13:57:12 +02:00
watch_queue.c Notifications over pipes + Keyring notifications 2020-06-13 09:56:21 -07:00
watchdog_hld.c
watchdog.c kernel/watchdog.c: convert {soft/hard}lockup boot parameters to sysctl aliases 2020-06-08 11:05:56 -07:00
workqueue_internal.h
workqueue.c maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault 2020-06-17 10:57:41 -07:00