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mm, sched/numa: Remove remaining traces of NUMA rate-limiting 

Remove the leftover pglist_data::numabalancing_migrate_lock and its
initialization, we stopped using this lock with:

  efaffc5e40 ("mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration")

[ mingo: Rewrote the changelog. ]

Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Linux-MM <linux-mm@kvack.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1538824999-31230-1-git-send-email-srikar@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Srikar Dronamraju 2018-10-06 16:53:19 +05:30 committed by Ingo Molnar
parent 0238df646e
commit e054637597
2 changed files with 0 additions and 14 deletions
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4
include/linux/mmzone.h
View File

@ -667,10 +667,6 @@ typedef struct pglist_data {
enum zone_type kcompactd_classzone_idx;
wait_queue_head_t kcompactd_wait;
struct task_struct *kcompactd;
#endif
#ifdef CONFIG_NUMA_BALANCING
/* Lock serializing the migrate rate limiting window */
spinlock_t numabalancing_migrate_lock;
#endif
/*
* This is a per-node reserve of pages that are not available

10
mm/page_alloc.c
View File

@ -6193,15 +6193,6 @@ static unsigned long __init calc_memmap_size(unsigned long spanned_pages,
return PAGE_ALIGN(pages * sizeof(struct page)) >> PAGE_SHIFT;
}
#ifdef CONFIG_NUMA_BALANCING
static void pgdat_init_numabalancing(struct pglist_data *pgdat)
{
spin_lock_init(&pgdat->numabalancing_migrate_lock);
}
#else
static void pgdat_init_numabalancing(struct pglist_data *pgdat) {}
#endif
#ifdef CONFIG_TRANSPARENT_HUGEPAGE
static void pgdat_init_split_queue(struct pglist_data *pgdat)
{
@ -6226,7 +6217,6 @@ static void __meminit pgdat_init_internals(struct pglist_data *pgdat)
{
pgdat_resize_init(pgdat);
pgdat_init_numabalancing(pgdat);
pgdat_init_split_queue(pgdat);
pgdat_init_kcompactd(pgdat);