From: Frederic Weisbecker <frederic@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: LKML <linux-kernel@vger.kernel.org>,
Anna-Maria Behnsen <anna-maria@linutronix.de>,
John Stultz <jstultz@google.com>,
Peter Zijlstra <peterz@infradead.org>,
Ingo Molnar <mingo@kernel.org>, Stephen Boyd <sboyd@kernel.org>,
Eric Biederman <ebiederm@xmission.com>,
Oleg Nesterov <oleg@redhat.com>
Subject: Re: [patch V3 09/51] posix-cpu-timers: Handle interval timers correctly in timer_get()
Date: Sat, 22 Jun 2024 11:04:38 +0200 [thread overview]
Message-ID: <ZnaTplDOun-QPCH8@pavilion.home> (raw)
In-Reply-To: <20240610164026.036097741@linutronix.de>
Le Mon, Jun 10, 2024 at 06:42:16PM +0200, Thomas Gleixner a écrit :
> timer_gettime() must return the remaining time to the next expiry of a
> timer or 0 if the timer is not armed and no signal pending, but posix CPU
> timers fail to forward a timer which is already expired.
>
> Add the required logic to address that.
>
> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
next prev parent reply other threads:[~2024-06-22 9:04 UTC|newest]
Thread overview: 71+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-10 16:42 [patch V3 00/51] posix-timers: Cure inconsistencies and the SIG_IGN mess Thomas Gleixner
2024-06-10 16:42 ` [patch V3 01/51] selftests/timers/posix_timers: Simplify error handling Thomas Gleixner
2024-06-10 16:42 ` [patch V3 02/51] selftests/timers/posix_timers: Add SIG_IGN test Thomas Gleixner
2024-06-10 16:42 ` [patch V3 03/51] selftests/timers/posix_timers: Validate signal rules Thomas Gleixner
2024-06-10 16:42 ` [patch V3 04/51] selftests/timers/posix-timers: Validate SIGEV_NONE Thomas Gleixner
2024-06-10 16:42 ` [patch V3 05/51] selftests/timers/posix-timers: Validate timer_gettime() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 06/51] selftests/timers/posix-timers: Validate overrun after unblock Thomas Gleixner
2024-06-10 16:42 ` [patch V3 07/51] posix-cpu-timers: Split up posix_cpu_timer_get() Thomas Gleixner
2024-06-21 15:28 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 08/51] posix-cpu-timers: Save interval only for armed timers Thomas Gleixner
2024-06-21 15:33 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 09/51] posix-cpu-timers: Handle interval timers correctly in timer_get() Thomas Gleixner
2024-06-22 9:04 ` Frederic Weisbecker [this message]
2024-06-10 16:42 ` [patch V3 10/51] posix-cpu-timers: Handle SIGEV_NONE " Thomas Gleixner
2024-06-22 14:28 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 11/51] posix-cpu-timers: Handle SIGEV_NONE timers correctly in timer_set() Thomas Gleixner
2024-06-22 14:35 ` Frederic Weisbecker
2024-06-22 21:56 ` Thomas Gleixner
2024-06-23 11:16 ` [patch V3-2 " Thomas Gleixner
2024-06-23 19:12 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 12/51] posix-cpu-timers: Replace old expiry retrieval in posix_cpu_timer_set() Thomas Gleixner
2024-06-23 11:17 ` [patch V3-2 " Thomas Gleixner
2024-06-23 20:23 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 13/51] posix-cpu-timers: Do not arm SIGEV_NONE timers Thomas Gleixner
2024-06-23 21:04 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 14/51] posix-cpu-timers: Use @now instead of @val for clarity Thomas Gleixner
2024-06-10 16:42 ` [patch V3 15/51] posix-cpu-timers: Remove incorrect comment in posix_cpu_timer_set() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 16/51] posix-cpu-timers: Simplify posix_cpu_timer_set() Thomas Gleixner
2024-06-23 22:41 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 17/51] posix-timers: Retrieve interval in common timer_settime() code Thomas Gleixner
2024-06-25 15:13 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 18/51] posix-timers: Clear overrun in common_timer_set() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 19/51] posix-timers: Convert timer list to hlist Thomas Gleixner
2024-06-10 16:42 ` [patch V3 20/51] posix-timers: Consolidate timer setup Thomas Gleixner
2024-06-25 22:19 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 21/51] posix-cpu-timers: Make k_itimer::it_active consistent Thomas Gleixner
2024-06-25 22:36 ` Frederic Weisbecker
2024-06-10 16:42 ` [patch V3 22/51] posix-timers: Consolidate signal queueing Thomas Gleixner
2024-06-10 16:42 ` [patch V3 23/51] signal: Remove task argument from dequeue_signal() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 24/51] signal: Replace BUG_ON()s Thomas Gleixner
2024-06-10 16:42 ` [patch V3 25/51] signal: Confine POSIX_TIMERS properly Thomas Gleixner
2024-06-10 16:42 ` [patch V3 26/51] signal: Prevent user space from setting si_sys_private Thomas Gleixner
2024-06-10 16:42 ` [patch V3 27/51] signal: Get rid of resched_timer logic Thomas Gleixner
2024-06-10 16:42 ` [patch V3 28/51] posix-timers: Cure si_sys_private race Thomas Gleixner
2024-06-10 16:42 ` [patch V3 29/51] signal: Allow POSIX timer signals to be dropped Thomas Gleixner
2024-06-10 16:42 ` [patch V3 30/51] posix-timers: Drop signal if timer has been deleted or reprogrammed Thomas Gleixner
2024-06-10 16:42 ` [patch V3 31/51] posix-timers: Rename k_itimer::it_requeue_pending Thomas Gleixner
2024-06-10 16:42 ` [patch V3 32/51] posix-timers: Add proper state tracking Thomas Gleixner
2024-06-10 16:42 ` [patch V3 33/51] posix-timers: Make signal delivery consistent Thomas Gleixner
2024-06-10 16:42 ` [patch V3 34/51] posix-timers: Make signal overrun accounting sensible Thomas Gleixner
2024-06-10 16:42 ` [patch V3 35/51] posix-cpu-timers: Use dedicated flag for CPU timer nanosleep Thomas Gleixner
2024-06-10 16:42 ` [patch V3 36/51] posix-timers: Add a refcount to struct k_itimer Thomas Gleixner
2024-06-10 16:42 ` [patch V3 37/51] signal: Split up __sigqueue_alloc() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 38/51] signal: Provide posixtimer_sigqueue_init() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 39/51] signal: Add sys_private_ptr to siginfo::_sifields::_timer Thomas Gleixner
2024-06-23 11:17 ` Thomas Gleixner
2024-06-10 16:42 ` [patch V3 40/51] posix-timers: Store PID type in the timer Thomas Gleixner
2024-06-10 16:42 ` [patch V3 41/51] signal: Refactor send_sigqueue() Thomas Gleixner
2024-06-10 16:42 ` [patch V3 42/51] posix-timers: Embed sigqueue in struct k_itimer Thomas Gleixner
2024-06-10 16:42 ` [patch V3 43/51] signal: Cleanup unused posix-timer leftovers Thomas Gleixner
2024-06-10 16:42 ` [patch V3 44/51] signal: Add task argument to flush_sigqueue_mask() Thomas Gleixner
2024-06-10 16:43 ` [patch V3 45/51] signal: Provide ignored_posix_timers list Thomas Gleixner
2024-06-10 16:43 ` [patch V3 46/51] posix-timers: Handle ignored list on delete and exit Thomas Gleixner
2024-06-10 16:43 ` [patch V3 47/51] signal: Handle ignored signals in do_sigaction(action != SIG_IGN) Thomas Gleixner
2024-06-10 16:43 ` [patch V3 48/51] signal: Queue ignored posixtimers on ignore list Thomas Gleixner
2024-06-10 16:43 ` [patch V3 49/51] posix-timers: Cleanup SIG_IGN workaround leftovers Thomas Gleixner
2024-06-10 16:43 ` [patch V3 50/51] alarmtimers: Remove the throttle mechanism from alarm_forward_now() Thomas Gleixner
2024-06-10 16:43 ` [patch V3 51/51] alarmtimers: Remove return value from alarm functions Thomas Gleixner
2024-06-10 19:49 ` [patch V3 00/51] posix-timers: Cure inconsistencies and the SIG_IGN mess Peter Zijlstra
2024-06-11 6:58 ` Thomas Gleixner
2024-06-23 11:24 ` Thomas Gleixner
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