Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for... | linuxppc-dev

[PATCH v2 00/13] perf/hw_breakpoint: Optimize for thousands of tasks · Marco Elver <elver@google.com> · 2022-06-28
[PATCH v2 01/13] perf/hw_breakpoint: Add KUnit test for constraints accounting · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 01/13] perf/hw_breakpoint: Add KUnit test for constraints accounting · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
Re: [PATCH v2 01/13] perf/hw_breakpoint: Add KUnit test for constraints accounting · Marco Elver <elver@google.com> · 2022-06-28
[PATCH v2 02/13] perf/hw_breakpoint: Clean up headers · Marco Elver <elver@google.com> · 2022-06-28
[PATCH v2 03/13] perf/hw_breakpoint: Optimize list of per-task breakpoints · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 03/13] perf/hw_breakpoint: Optimize list of per-task breakpoints · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
Re: [PATCH v2 03/13] perf/hw_breakpoint: Optimize list of per-task breakpoints · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 03/13] perf/hw_breakpoint: Optimize list of per-task breakpoints · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 04/13] perf/hw_breakpoint: Mark data __ro_after_init · Marco Elver <elver@google.com> · 2022-06-28
[PATCH v2 05/13] perf/hw_breakpoint: Optimize constant number of breakpoint slots · Marco Elver <elver@google.com> · 2022-06-28
[PATCH v2 06/13] perf/hw_breakpoint: Make hw_breakpoint_weight() inlinable · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 06/13] perf/hw_breakpoint: Make hw_breakpoint_weight() inlinable · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 07/13] perf/hw_breakpoint: Remove useless code related to flexible breakpoints · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 07/13] perf/hw_breakpoint: Remove useless code related to flexible breakpoints · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 08/13] powerpc/hw_breakpoint: Avoid relying on caller synchronization · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 08/13] powerpc/hw_breakpoint: Avoid relying on caller synchronization · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
Re: [PATCH v2 08/13] powerpc/hw_breakpoint: Avoid relying on caller synchronization · Christophe Leroy <hidden> · 2022-07-01
Re: [PATCH v2 08/13] powerpc/hw_breakpoint: Avoid relying on caller synchronization · Marco Elver <elver@google.com> · 2022-07-01
Re: [PATCH v2 08/13] powerpc/hw_breakpoint: Avoid relying on caller synchronization · Christophe Leroy <hidden> · 2022-07-01
[PATCH v2 09/13] locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked() · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 09/13] locking/percpu-rwsem: Add percpu_is_write_locked() and percpu_is_read_locked() · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 10/13] perf/hw_breakpoint: Reduce contention with large number of tasks · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 10/13] perf/hw_breakpoint: Reduce contention with large number of tasks · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 11/13] perf/hw_breakpoint: Introduce bp_slots_histogram · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 11/13] perf/hw_breakpoint: Introduce bp_slots_histogram · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 12/13] perf/hw_breakpoint: Optimize max_bp_pinned_slots() for CPU-independent task targets · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 12/13] perf/hw_breakpoint: Optimize max_bp_pinned_slots() for CPU-independent task targets · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
[PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets · Marco Elver <elver@google.com> · 2022-06-28
Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets · Dmitry Vyukov <dvyukov@google.com> · 2022-06-28
Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets · Marco Elver <elver@google.com> · 2022-06-28

Re: [PATCH v2 13/13] perf/hw_breakpoint: Optimize toggle_bp_slot() for CPU-independent task targets

From: Marco Elver <elver@google.com>
Date: 2022-06-28 10:55:16
Also in: linux-perf-users, linux-sh, lkml

On Tue, 28 Jun 2022 at 11:59, Marco Elver [off-list ref] wrote:
[...]

+       /*
+        * Update the pinned task slots, in per-CPU bp_cpuinfo and in the global
+        * histogram. We need to take care of 5 cases:

This is a typo: "5 cases" -> "4 cases".

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