From 3f9903b9ca5e981b5862d7b10086d0e8caa20298 Mon Sep 17 00:00:00 2001
From: David Hildenbrand <david@redhat.com>
Date: Thu, 30 Jan 2020 22:14:01 -0800
Subject: mm: remove the memory isolate notifier

Luckily, we have no users left, so we can get rid of it.  Cleanup
set_migratetype_isolate() a little bit.

Link: http://lkml.kernel.org/r/20191114131911.11783-2-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Cc: Pavel Tatashin <pasha.tatashin@soleen.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Qian Cai <cai@lca.pw>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Pingfan Liu <kernelfans@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/linux/memory.h | 27 ---------------------------
 1 file changed, 27 deletions(-)

(limited to 'include/linux/memory.h')

diff --git a/include/linux/memory.h b/include/linux/memory.h
index 4c75dae8dd29..de6bccb28f07 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -55,19 +55,6 @@ struct memory_notify {
 	int status_change_nid;
 };
 
-/*
- * During pageblock isolation, count the number of pages within the
- * range [start_pfn, start_pfn + nr_pages) which are owned by code
- * in the notifier chain.
- */
-#define MEM_ISOLATE_COUNT	(1<<0)
-
-struct memory_isolate_notify {
-	unsigned long start_pfn;	/* Start of range to check */
-	unsigned int nr_pages;		/* # pages in range to check */
-	unsigned int pages_found;	/* # pages owned found by callbacks */
-};
-
 struct notifier_block;
 struct mem_section;
 
@@ -94,27 +81,13 @@ static inline int memory_notify(unsigned long val, void *v)
 {
 	return 0;
 }
-static inline int register_memory_isolate_notifier(struct notifier_block *nb)
-{
-	return 0;
-}
-static inline void unregister_memory_isolate_notifier(struct notifier_block *nb)
-{
-}
-static inline int memory_isolate_notify(unsigned long val, void *v)
-{
-	return 0;
-}
 #else
 extern int register_memory_notifier(struct notifier_block *nb);
 extern void unregister_memory_notifier(struct notifier_block *nb);
-extern int register_memory_isolate_notifier(struct notifier_block *nb);
-extern void unregister_memory_isolate_notifier(struct notifier_block *nb);
 int create_memory_block_devices(unsigned long start, unsigned long size);
 void remove_memory_block_devices(unsigned long start, unsigned long size);
 extern void memory_dev_init(void);
 extern int memory_notify(unsigned long val, void *v);
-extern int memory_isolate_notify(unsigned long val, void *v);
 extern struct memory_block *find_memory_block(struct mem_section *);
 typedef int (*walk_memory_blocks_func_t)(struct memory_block *, void *);
 extern int walk_memory_blocks(unsigned long start, unsigned long size,
-- 
cgit