Messages in this thread Patch in this message | | | Date | Thu, 9 Jun 2022 13:30:40 +0200 | Subject | [PATCH 2/8] perf/hw_breakpoint: Mark data __ro_after_init | From | Marco Elver <> |
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Mark read-only data after initialization as __ro_after_init.
While we are here, turn 'constraints_initialized' into a bool.
Signed-off-by: Marco Elver <elver@google.com> --- kernel/events/hw_breakpoint.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c index 25c94c6e918d..1f718745d569 100644 --- a/kernel/events/hw_breakpoint.c +++ b/kernel/events/hw_breakpoint.c @@ -47,7 +47,7 @@ struct bp_cpuinfo { }; static DEFINE_PER_CPU(struct bp_cpuinfo, bp_cpuinfo[TYPE_MAX]); -static int nr_slots[TYPE_MAX]; +static int nr_slots[TYPE_MAX] __ro_after_init; static struct bp_cpuinfo *get_bp_info(int cpu, enum bp_type_idx type) { @@ -63,7 +63,7 @@ static const struct rhashtable_params task_bps_ht_params = { .automatic_shrinking = true, }; -static int constraints_initialized; +static bool constraints_initialized __ro_after_init; /* Gather the number of total pinned and un-pinned bp in a cpuset */ struct bp_busy_slots { @@ -711,7 +711,7 @@ int __init init_hw_breakpoint(void) if (ret) goto err; - constraints_initialized = 1; + constraints_initialized = true; perf_pmu_register(&perf_breakpoint, "breakpoint", PERF_TYPE_BREAKPOINT); -- 2.36.1.255.ge46751e96f-goog
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