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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: b6153093de41186e2c534ffffb8ce81b1666b110
Gitweb: https://git.kernel.org/tip/b6153093de41186e2c534ffffb8ce81b1666b110
Author: Bharata B Rao <bharata@amd.com>
AuthorDate: Mon, 04 Oct 2021 16:27:03 +05:30
Committer: Peter Zijlstra <peterz@infradead.org>
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@amd.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mel Gorman <mgorman@suse.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)
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