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| author |   Nitin Gupta <nigupta@nvidia.com> | 2020-08-11 18:31:07 -0700 |
|---|---|---|
| committer |   Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 10:57:56 -0700 |
| commit | d34c0a7599ea8c301bc471dfa1eb2bf2db6752d1 (patch) | |
| tree | 088c7a1a1d12e342e6be17539f84b74eac3a1e4e /include/linux/compaction.h | |
| parent | mm: fix compile error due to COMPACTION_HPAGE_ORDER (diff) | |
| download | wireguard-linux-d34c0a7599ea8c301bc471dfa1eb2bf2db6752d1.tar.xz wireguard-linux-d34c0a7599ea8c301bc471dfa1eb2bf2db6752d1.zip | |
mm: use unsigned types for fragmentation score
Proactive compaction uses per-node/zone "fragmentation score" which is
always in range [0, 100], so use unsigned type of these scores as well as
for related constants.
Signed-off-by: Nitin Gupta <nigupta@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Cc: Luis Chamberlain <mcgrof@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Iurii Zaikin <yzaikin@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Link: http://lkml.kernel.org/r/20200618010319.13159-1-nigupta@nvidia.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include/linux/compaction.h')
| -rw-r--r-- | include/linux/compaction.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/compaction.h b/include/linux/compaction.h index 7a242d46454e..25a521d299c1 100644 --- a/include/linux/compaction.h +++ b/include/linux/compaction.h @@ -85,13 +85,13 @@ static inline unsigned long compact_gap(unsigned int order) #ifdef CONFIG_COMPACTION extern int sysctl_compact_memory; -extern int sysctl_compaction_proactiveness; +extern unsigned int sysctl_compaction_proactiveness; extern int sysctl_compaction_handler(struct ctl_table *table, int write, void *buffer, size_t *length, loff_t *ppos); extern int sysctl_extfrag_threshold; extern int sysctl_compact_unevictable_allowed; -extern int extfrag_for_order(struct zone *zone, unsigned int order); +extern unsigned int extfrag_for_order(struct zone *zone, unsigned int order); extern int fragmentation_index(struct zone *zone, unsigned int order); extern enum compact_result try_to_compact_pages(gfp_t gfp_mask, unsigned int order, unsigned int alloc_flags, |