[GIT PULL] posix-timers updates

[Frederic Weisbecker <frederic@kernel.org>]

Thomas,

Please pull the latest tags/posix-timers-2024-07-29 tag from:

  git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git tags/posix-timers-2024-07-29

up to 7f8af7bac5380f2d95a63a6f19964e22437166e1:

  signal: Replace BUG_ON()s (2024-07-29 21:57:35 +0200)

----------------------------------------------------------------
Updates for posix timers and related signal code:

* Prepare posix timers selftests for upcoming changes:

	- Check signal behaviour sanity against SIG_IGN

	- Check signal behaviour sanity against timer
	  reprogramm/deletion

	- Check SIGEV_NONE pending expiry read

	- Check interval timer read on a pending SIGNAL

	- Check correct overrun count after signal block/unblock

* Various consolidations:

	- timer get/set

	- signal queue

* Fixes:
	- Correctly read SIGEV_NONE timers

	- Forward expiry while reading expired interval timers
	  with pending signal

	- Don't arm SIGEV_NONE timers

* Various cleanups all over the place

----------------------------------------------------------------
Thomas Gleixner (24):
      selftests/timers/posix_timers: Simplify error handling
      selftests/timers/posix_timers: Add SIG_IGN test
      selftests/timers/posix_timers: Validate signal rules
      selftests/timers/posix-timers: Validate SIGEV_NONE
      selftests/timers/posix-timers: Validate timer_gettime()
      selftests/timers/posix-timers: Validate overrun after unblock
      posix-cpu-timers: Split up posix_cpu_timer_get()
      posix-cpu-timers: Save interval only for armed timers
      posix-cpu-timers: Handle interval timers correctly in timer_get()
      posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_get()
      posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_set()
      posix-cpu-timers: Replace old expiry retrieval in posix_cpu_timer_set()
      posix-cpu-timers: Do not arm SIGEV_NONE timers
      posix-cpu-timers: Use @now instead of @val for clarity
      posix-cpu-timers: Remove incorrect comment in posix_cpu_timer_set()
      posix-cpu-timers: Simplify posix_cpu_timer_set()
      posix-timers: Retrieve interval in common timer_settime() code
      posix-timers: Clear overrun in common_timer_set()
      posix-timers: Convert timer list to hlist
      posix-timers: Consolidate timer setup
      posix-cpu-timers: Make k_itimer::it_active consistent
      posix-timers: Consolidate signal queueing
      signal: Remove task argument from dequeue_signal()
      signal: Replace BUG_ON()s

 fs/proc/base.c                                |   6 +-
 fs/signalfd.c                                 |   4 +-
 include/linux/posix-timers.h                  |   2 +-
 include/linux/sched/signal.h                  |   7 +-
 init/init_task.c                              |   2 +-
 kernel/fork.c                                 |   2 +-
 kernel/signal.c                               |  34 +-
 kernel/time/alarmtimer.c                      |   7 +-
 kernel/time/posix-cpu-timers.c                | 207 ++++------
 kernel/time/posix-timers.c                    |  69 ++--
 kernel/time/posix-timers.h                    |   3 +-
 tools/testing/selftests/timers/posix_timers.c | 550 +++++++++++++++++++++-----
 12 files changed, 607 insertions(+), 286 deletions(-)