linux-kernel - [tip: sched/core] sched/numa: Replace hard-coded number by a define in numa_task

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Date:   Thu, 14 Oct 2021 11:16:21 -0000
From:   "tip-bot2 for Bharata B Rao" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Bharata B Rao <bharata@....com>,
        "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Mel Gorman <mgorman@...e.de>, x86@...nel.org,
        linux-kernel@...r.kernel.org
Subject: [tip: sched/core] sched/numa: Replace hard-coded number by a define
 in numa_task_group()

The following commit has been merged into the sched/core branch of tip:

Commit-ID:     7a2341fc1fec0b8b3580be4226ea244756d3a1b3
Gitweb:        https://git.kernel.org/tip/7a2341fc1fec0b8b3580be4226ea244756d3a1b3
Author:        Bharata B Rao <bharata@....com>
AuthorDate:    Mon, 04 Oct 2021 16:27:03 +05:30
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Thu, 14 Oct 2021 13:09:58 +02:00

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>
Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Acked-by: Mel Gorman <mgorman@...e.de>
Link: https://lkml.kernel.org/r/20211004105706.3669-2-bharata@amd.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 2468d1d..fc0a0ed 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2438,7 +2438,8 @@ 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)