From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> To: linux-kernel@vger.kernel.org Cc: tglx@linutronix.de, Peter Zijlstra <peterz@infradead.org>, Sebastian Andrzej Siewior <bigeasy@linutronix.de>, Andrew Morton <akpm@linux-foundation.org>, linux-mm@kvack.org Subject: [PATCH 20/38] mm: Replace deprecated CPU-hotplug functions. Date: Tue, 3 Aug 2021 16:16:03 +0200 [thread overview] Message-ID: <20210803141621.780504-21-bigeasy@linutronix.de> (raw) In-Reply-To: <20210803141621.780504-1-bigeasy@linutronix.de> The functions get_online_cpus() and put_online_cpus() have been deprecated during the CPU hotplug rework. They map directly to cpus_read_lock() and cpus_read_unlock(). Replace deprecated CPU-hotplug functions with the official version. The behavior remains unchanged. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> --- mm/swap_slots.c | 4 ++-- mm/vmstat.c | 12 ++++++------ 2 files changed, 8 insertions(+), 8 deletions(-) diff --git a/mm/swap_slots.c b/mm/swap_slots.c index a66f3e0ec9733..16f706c55d925 100644 --- a/mm/swap_slots.c +++ b/mm/swap_slots.c @@ -70,9 +70,9 @@ void disable_swap_slots_cache_lock(void) swap_slot_cache_enabled = false; if (swap_slot_cache_initialized) { /* serialize with cpu hotplug operations */ - get_online_cpus(); + cpus_read_lock(); __drain_swap_slots_cache(SLOTS_CACHE|SLOTS_CACHE_RET); - put_online_cpus(); + cpus_read_unlock(); } } diff --git a/mm/vmstat.c b/mm/vmstat.c index b0534e068166c..a7ed56ac4c0b4 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -129,9 +129,9 @@ static void sum_vm_events(unsigned long *ret) */ void all_vm_events(unsigned long *ret) { - get_online_cpus(); + cpus_read_lock(); sum_vm_events(ret); - put_online_cpus(); + cpus_read_unlock(); } EXPORT_SYMBOL_GPL(all_vm_events); @@ -1948,7 +1948,7 @@ static void vmstat_shepherd(struct work_struct *w) { int cpu; - get_online_cpus(); + cpus_read_lock(); /* Check processors whose vmstat worker threads have been disabled */ for_each_online_cpu(cpu) { struct delayed_work *dw = &per_cpu(vmstat_work, cpu); @@ -1958,7 +1958,7 @@ static void vmstat_shepherd(struct work_struct *w) cond_resched(); } - put_online_cpus(); + cpus_read_unlock(); schedule_delayed_work(&shepherd, round_jiffies_relative(sysctl_stat_interval)); @@ -2037,9 +2037,9 @@ void __init init_mm_internals(void) if (ret < 0) pr_err("vmstat: failed to register 'online' hotplug state\n"); - get_online_cpus(); + cpus_read_lock(); init_cpu_node_state(); - put_online_cpus(); + cpus_read_unlock(); start_shepherd_timer(); #endif -- 2.32.0
next prev parent reply other threads:[~2021-08-03 14:18 UTC|newest] Thread overview: 113+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-08-03 14:15 [PATCH 00/38] Replace deprecated CPU-hotplug Sebastian Andrzej Siewior 2021-08-03 14:15 ` Sebastian Andrzej Siewior 2021-08-03 14:15 ` [Nouveau] " Sebastian Andrzej Siewior 2021-08-03 14:15 ` Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 01/38] Documentation: Replace deprecated CPU-hotplug functions Sebastian Andrzej Siewior 2021-08-27 23:53 ` [tip: smp/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 02/38] MIPS: " Sebastian Andrzej Siewior 2021-08-05 9:02 ` Thomas Bogendoerfer 2021-08-03 14:15 ` [PATCH 03/38] powerpc: " Sebastian Andrzej Siewior 2021-08-03 14:15 ` Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 04/38] s390: " Sebastian Andrzej Siewior 2021-08-03 15:40 ` Heiko Carstens 2021-08-03 14:15 ` [PATCH 05/38] s390/sclp: " Sebastian Andrzej Siewior 2021-08-03 15:40 ` Heiko Carstens 2021-08-03 14:15 ` [PATCH 06/38] x86/mmiotrace: " Sebastian Andrzej Siewior 2021-08-03 14:15 ` [Nouveau] " Sebastian Andrzej Siewior 2021-08-03 15:03 ` Karol Herbst 2021-08-03 15:03 ` Karol Herbst 2021-08-04 1:07 ` Steven Rostedt 2021-08-04 1:07 ` [Nouveau] " Steven Rostedt 2021-08-10 12:52 ` [tip: x86/cleanups] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 07/38] x86/mtrr: " Sebastian Andrzej Siewior 2021-08-10 12:52 ` [tip: x86/cleanups] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 08/38] x86/microcode: " Sebastian Andrzej Siewior 2021-08-10 12:52 ` [tip: x86/cleanups] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 09/38] x86/mce/inject: " Sebastian Andrzej Siewior 2021-08-10 12:52 ` [tip: x86/cleanups] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 10/38] perf/x86/intel: " Sebastian Andrzej Siewior 2021-08-10 13:04 ` [tip: perf/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-26 8:09 ` tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 11/38] perf/hw_breakpoint: " Sebastian Andrzej Siewior 2021-08-10 13:04 ` [tip: perf/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-26 8:09 ` tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 12/38] crypto: virtio: " Sebastian Andrzej Siewior 2021-08-03 14:15 ` Sebastian Andrzej Siewior 2021-08-12 11:36 ` Herbert Xu 2021-08-12 11:36 ` Herbert Xu 2021-08-03 14:15 ` [PATCH 13/38] hwmon: " Sebastian Andrzej Siewior 2021-08-03 15:29 ` Guenter Roeck 2021-08-03 14:15 ` [PATCH 14/38] coresight: " Sebastian Andrzej Siewior 2021-08-03 14:15 ` Sebastian Andrzej Siewior 2021-08-03 15:52 ` Mathieu Poirier 2021-08-03 15:52 ` Mathieu Poirier 2021-08-03 14:15 ` [PATCH 15/38] md/raid5: " Sebastian Andrzej Siewior 2021-08-05 16:20 ` Song Liu 2021-08-27 23:53 ` [tip: smp/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:15 ` [PATCH 16/38] sgi-xpc: " Sebastian Andrzej Siewior 2021-08-03 15:54 ` Steve Wahl 2021-08-03 21:30 ` Robin Holt 2021-08-03 14:16 ` [PATCH 17/38] platform/x86: " Sebastian Andrzej Siewior 2021-08-06 13:36 ` Hans de Goede 2021-08-03 14:16 ` [PATCH 18/38] powercap: intel_rapl: " Sebastian Andrzej Siewior 2021-08-04 18:14 ` Rafael J. Wysocki 2021-08-03 14:16 ` [PATCH 19/38] thermal: " Sebastian Andrzej Siewior 2021-08-14 10:52 ` Daniel Lezcano 2021-09-09 14:38 ` [thermal: thermal/next] thermal/drivers/intel_powerclamp: " thermal-bot for Sebastian Andrzej Siewior 2021-09-10 22:45 ` [tip: smp/urgent] thermal: " tip-bot2 for Sebastian Andrzej Siewior 2021-09-11 20:48 ` Daniel Lezcano 2021-09-11 21:11 ` Borislav Petkov 2021-08-03 14:16 ` Sebastian Andrzej Siewior [this message] 2021-08-27 23:53 ` [tip: smp/core] mm: " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 21/38] virtio_net: " Sebastian Andrzej Siewior 2021-08-03 14:16 ` Sebastian Andrzej Siewior 2021-08-04 22:41 ` Jakub Kicinski 2021-08-03 14:16 ` [PATCH 22/38] net/af_iucv: " Sebastian Andrzej Siewior 2021-08-04 6:36 ` Julian Wiedmann 2021-08-03 14:16 ` [PATCH 23/38] net: " Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 24/38] cgroup: " Sebastian Andrzej Siewior 2021-08-09 22:37 ` Tejun Heo 2021-08-03 14:16 ` [PATCH 25/38] genirq/affinity: " Sebastian Andrzej Siewior 2021-08-10 12:58 ` [tip: irq/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 26/38] livepatch: " Sebastian Andrzej Siewior 2021-08-04 7:52 ` Petr Mladek 2021-08-19 10:01 ` Jiri Kosina 2021-08-03 14:16 ` [PATCH 27/38] padata: " Sebastian Andrzej Siewior 2021-08-04 14:52 ` Daniel Jordan 2021-08-12 11:36 ` Herbert Xu 2021-08-03 14:16 ` [PATCH 28/38] cpufreq: " Sebastian Andrzej Siewior 2021-08-04 18:19 ` Rafael J. Wysocki 2021-08-03 14:16 ` [PATCH 29/38] ACPI: processor: " Sebastian Andrzej Siewior 2021-08-04 18:27 ` Rafael J. Wysocki 2021-08-03 14:16 ` [PATCH 30/38] ACPI: PM: s2idle: " Sebastian Andrzej Siewior 2021-08-04 18:20 ` Rafael J. Wysocki 2021-08-03 14:16 ` [PATCH 31/38] rcu: " Sebastian Andrzej Siewior 2021-08-03 16:00 ` Paul E. McKenney 2021-08-10 12:42 ` Thomas Gleixner 2021-08-10 18:20 ` Paul E. McKenney 2021-08-03 14:16 ` [PATCH 32/38] sched: " Sebastian Andrzej Siewior 2021-08-10 12:58 ` [tip: sched/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 33/38] smpboot: " Sebastian Andrzej Siewior 2021-08-10 13:04 ` [tip: smp/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 34/38] clocksource: " Sebastian Andrzej Siewior 2021-08-10 12:58 ` [tip: timers/core] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 35/38] torture: " Sebastian Andrzej Siewior 2021-08-03 14:16 ` [PATCH 36/38] tracing: " Sebastian Andrzej Siewior 2021-08-03 15:16 ` Daniel Bristot de Oliveira 2021-08-04 2:26 ` Steven Rostedt 2021-08-10 13:34 ` Sebastian Andrzej Siewior 2021-08-10 19:12 ` Steven Rostedt 2021-08-03 14:16 ` [PATCH 37/38] workqueue: " Sebastian Andrzej Siewior 2021-08-04 1:36 ` Lai Jiangshan 2021-08-09 22:33 ` Tejun Heo 2021-08-03 14:16 ` [PATCH 38/38] cpu/hotplug: Remove " Sebastian Andrzej Siewior 2021-09-10 22:45 ` [tip: smp/urgent] " tip-bot2 for Sebastian Andrzej Siewior 2021-08-03 15:30 ` [PATCH 00/38] Replace deprecated CPU-hotplug Hans de Goede 2021-08-03 15:30 ` Hans de Goede 2021-08-03 15:30 ` [Nouveau] " Hans de Goede 2021-08-03 15:30 ` Hans de Goede 2021-08-03 16:10 ` Sebastian Andrzej Siewior 2021-08-03 16:10 ` Sebastian Andrzej Siewior 2021-08-03 16:10 ` [Nouveau] " Sebastian Andrzej Siewior 2021-08-03 16:10 ` Sebastian Andrzej Siewior 2021-08-18 13:38 ` (subset) " Michael Ellerman
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