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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 /mm/vmstat.c | |
| parent | mm: fix compile error due to COMPACTION_HPAGE_ORDER (diff) | |
| download | linux-dev-d34c0a7599ea8c301bc471dfa1eb2bf2db6752d1.tar.xz linux-dev-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 'mm/vmstat.c')
| -rw-r--r-- | mm/vmstat.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c index f183aa37994e..3bb034c99887 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1101,7 +1101,7 @@ static int __fragmentation_index(unsigned int order, struct contig_page_info *in * It is defined as the percentage of pages found in blocks of size * less than 1 << order. It returns values in range [0, 100]. */ -int extfrag_for_order(struct zone *zone, unsigned int order) +unsigned int extfrag_for_order(struct zone *zone, unsigned int order) { struct contig_page_info info; |