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Commit e0546375 authored by Srikar Dronamraju's avatar Srikar Dronamraju Committed by Ingo Molnar
Browse files

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:

  efaffc5e ("mm, sched/numa: Remove rate-limiting of automatic NUMA balancing migration")

[ mingo: Rewrote the changelog. ]

Signed-off-by: default avatarSrikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: default avatarMel 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: default avatarIngo Molnar <mingo@kernel.org>
parent 0238df64

include/linux/mmzone.h

+0 −4
Original line number Diff line number Diff line
@@ -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

mm/page_alloc.c

+0 −10
Original line number Diff line number Diff line
@@ -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);