linux/drivers/char
Linus Torvalds 9ea925c806 Updates for timers and timekeeping:
- Core:
 
 	- Overhaul of posix-timers in preparation of removing the
 	  workaround for periodic timers which have signal delivery
 	  ignored.
 
         - Remove the historical extra jiffie in msleep()
 
 	  msleep() adds an extra jiffie to the timeout value to ensure
 	  minimal sleep time. The timer wheel ensures minimal sleep
 	  time since the large rewrite to a non-cascading wheel, but the
 	  extra jiffie in msleep() remained unnoticed. Remove it.
 
         - Make the timer slack handling correct for realtime tasks.
 
 	  The procfs interface is inconsistent and does neither reflect
 	  reality nor conforms to the man page. Show the correct 0 slack
 	  for real time tasks and enforce it at the core level instead of
 	  having inconsistent individual checks in various timer setup
 	  functions.
 
         - The usual set of updates and enhancements all over the place.
 
   - Drivers:
 
         - Allow the ACPI PM timer to be turned off during suspend
 
 	- No new drivers
 
 	- The usual updates and enhancements in various drivers
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Merge tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer updates from Thomas Gleixner:
 "Core:

   - Overhaul of posix-timers in preparation of removing the workaround
     for periodic timers which have signal delivery ignored.

   - Remove the historical extra jiffie in msleep()

     msleep() adds an extra jiffie to the timeout value to ensure
     minimal sleep time. The timer wheel ensures minimal sleep time
     since the large rewrite to a non-cascading wheel, but the extra
     jiffie in msleep() remained unnoticed. Remove it.

   - Make the timer slack handling correct for realtime tasks.

     The procfs interface is inconsistent and does neither reflect
     reality nor conforms to the man page. Show the correct 0 slack for
     real time tasks and enforce it at the core level instead of having
     inconsistent individual checks in various timer setup functions.

   - The usual set of updates and enhancements all over the place.

  Drivers:

   - Allow the ACPI PM timer to be turned off during suspend

   - No new drivers

   - The usual updates and enhancements in various drivers"

* tag 'timers-core-2024-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits)
  ntp: Make sure RTC is synchronized when time goes backwards
  treewide: Fix wrong singular form of jiffies in comments
  cpu: Use already existing usleep_range()
  timers: Rename next_expiry_recalc() to be unique
  platform/x86:intel/pmc: Fix comment for the pmc_core_acpi_pm_timer_suspend_resume function
  clocksource/drivers/jcore: Use request_percpu_irq()
  clocksource/drivers/cadence-ttc: Add missing clk_disable_unprepare in ttc_setup_clockevent
  clocksource/drivers/asm9260: Add missing clk_disable_unprepare in asm9260_timer_init
  clocksource/drivers/qcom: Add missing iounmap() on errors in msm_dt_timer_init()
  clocksource/drivers/ingenic: Use devm_clk_get_enabled() helpers
  platform/x86:intel/pmc: Enable the ACPI PM Timer to be turned off when suspended
  clocksource: acpi_pm: Add external callback for suspend/resume
  clocksource/drivers/arm_arch_timer: Using for_each_available_child_of_node_scoped()
  dt-bindings: timer: rockchip: Add rk3576 compatible
  timers: Annotate possible non critical data race of next_expiry
  timers: Remove historical extra jiffie for timeout in msleep()
  hrtimer: Use and report correct timerslack values for realtime tasks
  hrtimer: Annotate hrtimer_cpu_base_.*_expiry() for sparse.
  timers: Add sparse annotation for timer_sync_wait_running().
  signal: Replace BUG_ON()s
  ...
2024-09-17 07:25:37 +02:00
..
agp Char/Misc and other driver changes for 6.11-rc1 2024-07-19 15:55:08 -07:00
hw_random hwrng: mtk - Use devm_pm_runtime_enable 2024-09-06 14:50:45 +08:00
ipmi treewide: Fix wrong singular form of jiffies in comments 2024-09-08 20:47:40 +02:00
mwave char/mwave: Adjust io port register size 2021-12-03 14:27:06 +01:00
tpm tpm: ibmvtpm: Call tpm2_sessions_init() to initialize session support 2024-08-27 21:11:44 +03:00
xilinx_hwicap char: xilinx_hwicap: Fix NULL vs IS_ERR() bug 2024-03-07 21:48:38 +00:00
xillybus char: xillybus: Check USB endpoints when probing device 2024-08-16 09:57:56 +02:00
adi.c vfs-6.12.file 2024-09-16 09:14:02 +02:00
apm-emulation.c apm-emulation: drop unexpected word "the" in the comments 2022-06-27 16:15:27 +02:00
applicom.c applicom: Fix PCI device refcount leak in applicom_init() 2023-01-20 13:05:39 +01:00
applicom.h
bsr.c bsr: add missing MODULE_DESCRIPTION() macro 2024-07-03 16:40:53 +02:00
ds1620.c char: add missing NetWinder MODULE_DESCRIPTION() macros 2024-07-31 13:47:45 +02:00
dsp56k.c dsp56k: add missing MODULE_DESCRIPTION() macro 2024-07-03 16:40:26 +02:00
dtlk.c dtlk: add missing MODULE_DESCRIPTION() macro 2024-07-03 16:40:23 +02:00
hangcheck-timer.c
hpet.c hpet: Support 32-bit userspace 2024-07-03 16:20:03 +02:00
Kconfig arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
lp.c parport: Remove parport_driver.devmodel 2024-07-03 16:44:22 +02:00
Makefile arch: Remove Itanium (IA-64) architecture 2023-09-11 08:13:17 +00:00
mem.c fs: move FMODE_UNSIGNED_OFFSET to fop_flags 2024-08-30 08:22:36 +02:00
misc.c char: misc: make misc_class a static const structure 2023-06-23 10:27:15 +02:00
nsc_gpio.c
nvram.c char: add missing MODULE_DESCRIPTION() macros 2024-06-04 17:40:17 +02:00
nwbutton.c char: add missing NetWinder MODULE_DESCRIPTION() macros 2024-07-31 13:47:45 +02:00
nwbutton.h
nwflash.c char: add missing NetWinder MODULE_DESCRIPTION() macros 2024-07-31 13:47:45 +02:00
pc8736x_gpio.c
powernv-op-panel.c powerpc/powernv: Convert to platform remove callback returning void 2024-04-11 15:26:59 +02:00
ppdev.c parport: Remove parport_driver.devmodel 2024-07-03 16:44:22 +02:00
ps3flash.c
random.c sysctl: treewide: constify the ctl_table argument of proc_handlers 2024-07-24 20:59:29 +02:00
scx200_gpio.c
sonypi.c sonypi: Convert to platform remove callback returning void 2024-04-11 15:27:02 +02:00
tlclk.c tlclk: add missing MODULE_DESCRIPTION() macro 2024-06-04 17:40:14 +02:00
toshiba.c
ttyprintk.c char: add missing MODULE_DESCRIPTION() macros 2024-06-04 17:40:17 +02:00
uv_mmtimer.c
virtio_console.c virtio: rename virtio_find_vqs_info() to virtio_find_vqs() 2024-07-17 05:20:58 -04:00