linux-kernel - [PATCH 1/4] sched/numa: Replace hard-coded number by a define in numa_task

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Message-ID: <20211004105706.3669-2-bharata@amd.com>
Date:   Mon, 4 Oct 2021 16:27:03 +0530
From:   Bharata B Rao <bharata@....com>
To:     <linux-kernel@...r.kernel.org>
CC:     <mingo@...hat.com>, <peterz@...radead.org>, <mgorman@...e.de>,
        <riel@...hat.com>, Bharata B Rao <bharata@....com>
Subject: [PATCH 1/4] sched/numa: Replace hard-coded number by a define in numa_task_group()

While allocating group fault stats, task_numa_group()
is using a hard coded number 4. Replace this by
NR_NUMA_HINT_FAULT_STATS.

No functionality change in this commit.

Signed-off-by: Bharata B Rao <bharata@....com>
---
 kernel/sched/fair.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index ff69f245b939..e8a696fd713d 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2481,7 +2481,8 @@ static void task_numa_group(struct task_struct *p, int cpupid, int flags,
 
 	if (unlikely(!deref_curr_numa_group(p))) {
 		unsigned int size = sizeof(struct numa_group) +
-				    4*nr_node_ids*sizeof(unsigned long);
+				    NR_NUMA_HINT_FAULT_STATS *
+				    nr_node_ids * sizeof(unsigned long);
 
 		grp = kzalloc(size, GFP_KERNEL | __GFP_NOWARN);
 		if (!grp)
-- 
2.25.1