[tip: sched/core] sched/numa: Replace hard-coded number by a define in numa_task_group()

[tip-bot2 for Bharata B Rao]

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

Commit-ID:     b6153093de41186e2c534ffffb8ce81b1666b110
Gitweb:        https://git.kernel.org/tip/b6153093de41186e2c534ffffb8ce81b1666b110
Author:        Bharata B Rao <bharata@xxxxxxx>
AuthorDate:    Mon, 04 Oct 2021 16:27:03 +05:30
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Thu, 07 Oct 2021 13:51:16 +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@xxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Acked-by: Mel Gorman <mgorman@xxxxxxx>
Link: https://lkml.kernel.org/r/20211004105706.3669-2-bharata@xxxxxxx
---
 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)