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From: K Prateek Nayak <kprateek.nayak@amd.com>
To: Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
	Dave Hansen <dave.hansen@linux.intel.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>, <x86@kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: "H. Peter Anvin" <hpa@zytor.com>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	Ricardo Neri <ricardo.neri-calderon@linux.intel.com>,
	Tim Chen <tim.c.chen@linux.intel.com>,
	Mario Limonciello <mario.limonciello@amd.com>,
	Meng Li <li.meng@amd.com>, Huang Rui <ray.huang@amd.com>,
	"Gautham R. Shenoy" <gautham.shenoy@amd.com>,
	K Prateek Nayak <kprateek.nayak@amd.com>
Subject: [PATCH 1/8] x86/itmt: Convert "sysctl_sched_itmt_enabled" to boolean
Date: Wed, 11 Dec 2024 18:55:44 +0000	[thread overview]
Message-ID: <20241211185552.4553-2-kprateek.nayak@amd.com> (raw)
In-Reply-To: <20241211185552.4553-1-kprateek.nayak@amd.com>

In preparation to move "sysctl_sched_itmt_enabled" to debugfs, convert
the unsigned int to bool since debugfs readily exposes boolean fops
primitives (debugfs_read_file_bool, debugfs_write_file_bool) which can
streamline the conversion.

Since the current ctl_table initializes extra1 and extra2 to SYSCTL_ZERO
and SYSCTL_ONE respectively, the value of "sysctl_sched_itmt_enabled"
can only be 0 or 1 and this datatype conversion should not cause any
functional changes.

Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
---
 arch/x86/include/asm/topology.h | 4 ++--
 arch/x86/kernel/itmt.c          | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h
index fd41103ad342..63bab25a4896 100644
--- a/arch/x86/include/asm/topology.h
+++ b/arch/x86/include/asm/topology.h
@@ -250,7 +250,7 @@ extern bool x86_topology_update;
 #include <asm/percpu.h>
 
 DECLARE_PER_CPU_READ_MOSTLY(int, sched_core_priority);
-extern unsigned int __read_mostly sysctl_sched_itmt_enabled;
+extern bool __read_mostly sysctl_sched_itmt_enabled;
 
 /* Interface to set priority of a cpu */
 void sched_set_itmt_core_prio(int prio, int core_cpu);
@@ -263,7 +263,7 @@ void sched_clear_itmt_support(void);
 
 #else /* CONFIG_SCHED_MC_PRIO */
 
-#define sysctl_sched_itmt_enabled	0
+#define sysctl_sched_itmt_enabled	false
 static inline void sched_set_itmt_core_prio(int prio, int core_cpu)
 {
 }
diff --git a/arch/x86/kernel/itmt.c b/arch/x86/kernel/itmt.c
index 51b805c727fc..28f449123d68 100644
--- a/arch/x86/kernel/itmt.c
+++ b/arch/x86/kernel/itmt.c
@@ -36,7 +36,7 @@ static bool __read_mostly sched_itmt_capable;
  *
  * It can be set via /proc/sys/kernel/sched_itmt_enabled
  */
-unsigned int __read_mostly sysctl_sched_itmt_enabled;
+bool __read_mostly sysctl_sched_itmt_enabled;
 
 static int sched_itmt_update_handler(const struct ctl_table *table, int write,
 				     void *buffer, size_t *lenp, loff_t *ppos)
-- 
2.34.1


  reply	other threads:[~2024-12-11 18:56 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-12-11 18:55 [PATCH 0/8] x86, sched: Dynamic ITMT core ranking support and some yak shaving K Prateek Nayak
2024-12-11 18:55 ` K Prateek Nayak [this message]
2024-12-12 18:09   ` [PATCH 1/8] x86/itmt: Convert "sysctl_sched_itmt_enabled" to boolean Tim Chen
2024-12-11 18:55 ` [PATCH 2/8] x86/itmt: Use guard() for itmt_update_mutex K Prateek Nayak
2024-12-12 18:22   ` Tim Chen
2024-12-11 18:55 ` [PATCH 3/8] x86/itmt: Move the "sched_itmt_enabled" sysctl to debugfs K Prateek Nayak
2024-12-12 19:15   ` Tim Chen
2024-12-13  4:01     ` K Prateek Nayak
2024-12-13 17:19       ` Tim Chen
2024-12-13  9:16     ` Peter Zijlstra
2024-12-11 18:55 ` [PATCH 4/8] x86/topology: Remove x86_smt_flags and use cpu_smt_flags directly K Prateek Nayak
2024-12-12 21:05   ` Tim Chen
2024-12-11 18:55 ` [PATCH 5/8] x86/topology: Use x86_sched_itmt_flags for PKG domain unconditionally K Prateek Nayak
2024-12-13 21:07   ` Tim Chen
2024-12-11 18:55 ` [PATCH 6/8] sched/fair: Do not compute NUMA Balancing stats unnecessarily during lb K Prateek Nayak
2024-12-12 11:05   ` Vincent Guittot
2024-12-12 11:43     ` K Prateek Nayak
2024-12-12 13:28       ` Vincent Guittot
2024-12-13 14:55   ` Shrikanth Hegde
2024-12-11 18:55 ` [PATCH 7/8] sched/fair: Do not compute overloaded status " K Prateek Nayak
2024-12-12  9:56   ` Vincent Guittot
2024-12-12 11:01     ` K Prateek Nayak
2024-12-12 11:18       ` Vincent Guittot
2024-12-12 11:30         ` K Prateek Nayak
2024-12-13 14:57   ` Shrikanth Hegde
2024-12-13 19:51     ` K Prateek Nayak
2024-12-11 18:55 ` [RFC PATCH 8/8] sched/fair: Uncache asym_prefer_cpu and find it during update_sd_lb_stats() K Prateek Nayak
2024-12-13 15:02   ` Shrikanth Hegde
2024-12-13 20:00     ` K Prateek Nayak
2024-12-13  0:33 ` [PATCH 0/8] x86, sched: Dynamic ITMT core ranking support and some yak shaving Tim Chen
2024-12-13  4:12   ` K Prateek Nayak
2024-12-13 21:11     ` Tim Chen

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