diff mbox series

[161/200] mm/compaction: make defer_compaction and compaction_deferred static

Message ID 20201215031246.i0OwwU3Tv%akpm@linux-foundation.org (mailing list archive)
State New, archived
Headers show
Series [001/200] kthread: add kthread_work tracepoints | expand

Commit Message

Andrew Morton Dec. 15, 2020, 3:12 a.m. UTC
From: Hui Su <sh_def@163.com>
Subject: mm/compaction: make defer_compaction and compaction_deferred static

defer_compaction() and compaction_deferred() and compaction_restarting()
in mm/compaction.c won't be used in other files, so make them static, and
remove the declaration in the header file.

Take the chance to fix a typo.

Link: https://lkml.kernel.org/r/20201123170801.GA9625@rlk
Signed-off-by: Hui Su <sh_def@163.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Nitin Gupta <nigupta@nvidia.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Mateusz Nosek <mateusznosek0@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 include/linux/compaction.h |   12 ------------
 mm/compaction.c            |    8 ++++----
 2 files changed, 4 insertions(+), 16 deletions(-)
diff mbox series

Patch

--- a/include/linux/compaction.h~mm-compaction-make-defer_compaction-and-compaction_deferred-static
+++ a/include/linux/compaction.h
@@ -98,11 +98,8 @@  extern void reset_isolation_suitable(pg_
 extern enum compact_result compaction_suitable(struct zone *zone, int order,
 		unsigned int alloc_flags, int highest_zoneidx);
 
-extern void defer_compaction(struct zone *zone, int order);
-extern bool compaction_deferred(struct zone *zone, int order);
 extern void compaction_defer_reset(struct zone *zone, int order,
 				bool alloc_success);
-extern bool compaction_restarting(struct zone *zone, int order);
 
 /* Compaction has made some progress and retrying makes sense */
 static inline bool compaction_made_progress(enum compact_result result)
@@ -194,15 +191,6 @@  static inline enum compact_result compac
 	return COMPACT_SKIPPED;
 }
 
-static inline void defer_compaction(struct zone *zone, int order)
-{
-}
-
-static inline bool compaction_deferred(struct zone *zone, int order)
-{
-	return true;
-}
-
 static inline bool compaction_made_progress(enum compact_result result)
 {
 	return false;
--- a/mm/compaction.c~mm-compaction-make-defer_compaction-and-compaction_deferred-static
+++ a/mm/compaction.c
@@ -157,7 +157,7 @@  EXPORT_SYMBOL(__ClearPageMovable);
  * allocation success. 1 << compact_defer_shift, compactions are skipped up
  * to a limit of 1 << COMPACT_MAX_DEFER_SHIFT
  */
-void defer_compaction(struct zone *zone, int order)
+static void defer_compaction(struct zone *zone, int order)
 {
 	zone->compact_considered = 0;
 	zone->compact_defer_shift++;
@@ -172,7 +172,7 @@  void defer_compaction(struct zone *zone,
 }
 
 /* Returns true if compaction should be skipped this time */
-bool compaction_deferred(struct zone *zone, int order)
+static bool compaction_deferred(struct zone *zone, int order)
 {
 	unsigned long defer_limit = 1UL << zone->compact_defer_shift;
 
@@ -209,7 +209,7 @@  void compaction_defer_reset(struct zone
 }
 
 /* Returns true if restarting compaction after many failures */
-bool compaction_restarting(struct zone *zone, int order)
+static bool compaction_restarting(struct zone *zone, int order)
 {
 	if (order < zone->compact_order_failed)
 		return false;
@@ -237,7 +237,7 @@  static void reset_cached_positions(struc
 }
 
 /*
- * Compound pages of >= pageblock_order should consistenly be skipped until
+ * Compound pages of >= pageblock_order should consistently be skipped until
  * released. It is always pointless to compact pages of such order (if they are
  * migratable), and the pageblocks they occupy cannot contain any free pages.
  */