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mm/compaction: make defer_compaction and compaction_deferred static

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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>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Hui Su 2020-12-14 19:12:46 -08:00 committed by Linus Torvalds
parent 2b1a20c3af
commit 2271b016bf
2 changed files with 4 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
include/linux/compaction.h
View File

@ -98,11 +98,8 @@ extern void reset_isolation_suitable(pg_data_t *pgdat);
extern enum compact_result compaction_suitable(struct zone *zone, int order, extern enum compact_result compaction_suitable(struct zone *zone, int order,
unsigned int alloc_flags, int highest_zoneidx); 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, extern void compaction_defer_reset(struct zone *zone, int order,
bool alloc_success); bool alloc_success);
extern bool compaction_restarting(struct zone *zone, int order);
/* Compaction has made some progress and retrying makes sense */ /* Compaction has made some progress and retrying makes sense */
static inline bool compaction_made_progress(enum compact_result result) static inline bool compaction_made_progress(enum compact_result result)
@ -194,15 +191,6 @@ static inline enum compact_result compaction_suitable(struct zone *zone, int ord
return COMPACT_SKIPPED; 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) static inline bool compaction_made_progress(enum compact_result result)
{ {
return false; return false;

8
mm/compaction.c
View File

@ -157,7 +157,7 @@ EXPORT_SYMBOL(__ClearPageMovable);
* allocation success. 1 << compact_defer_shift, compactions are skipped up * allocation success. 1 << compact_defer_shift, compactions are skipped up
* to a limit of 1 << COMPACT_MAX_DEFER_SHIFT * 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_considered = 0;
zone->compact_defer_shift++; zone->compact_defer_shift++;
@ -172,7 +172,7 @@ void defer_compaction(struct zone *zone, int order)
} }
/* Returns true if compaction should be skipped this time */ /* 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; unsigned long defer_limit = 1UL << zone->compact_defer_shift;
@ -209,7 +209,7 @@ void compaction_defer_reset(struct zone *zone, int order,
} }
/* Returns true if restarting compaction after many failures */ /* 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) if (order < zone->compact_order_failed)
return false; return false;
@ -237,7 +237,7 @@ static void reset_cached_positions(struct zone *zone)
} }
/* /*
* 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 * 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. * migratable), and the pageblocks they occupy cannot contain any free pages.
*/ */