diff options
Diffstat (limited to 'mm/compaction.c')
| -rw-r--r-- | mm/compaction.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index d8187f9cabbf..2c4ce17651d8 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -461,6 +461,7 @@ static bool too_many_isolated(struct zone *zone) * @cc: Compaction control structure. * @low_pfn: The first PFN of the range. * @end_pfn: The one-past-the-last PFN of the range. + * @unevictable: true if it allows to isolate unevictable pages * * Isolate all pages that can be migrated from the range specified by * [low_pfn, end_pfn). Returns zero if there is a fatal signal @@ -476,7 +477,7 @@ static bool too_many_isolated(struct zone *zone) */ unsigned long isolate_migratepages_range(struct zone *zone, struct compact_control *cc, - unsigned long low_pfn, unsigned long end_pfn) + unsigned long low_pfn, unsigned long end_pfn, bool unevictable) { unsigned long last_pageblock_nr = 0, pageblock_nr; unsigned long nr_scanned = 0, nr_isolated = 0; @@ -602,6 +603,9 @@ isolate_migratepages_range(struct zone *zone, struct compact_control *cc, if (!cc->sync) mode |= ISOLATE_ASYNC_MIGRATE; + if (unevictable) + mode |= ISOLATE_UNEVICTABLE; + lruvec = mem_cgroup_page_lruvec(page, zone); /* Try isolate the page */ @@ -807,7 +811,7 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone, } /* Perform the isolation */ - low_pfn = isolate_migratepages_range(zone, cc, low_pfn, end_pfn); + low_pfn = isolate_migratepages_range(zone, cc, low_pfn, end_pfn, false); if (!low_pfn || cc->contended) return ISOLATE_ABORT; |