The patch titled Subject: mm: compaction: make compact_control order signed has been removed from the -mm tree. Its filename was mm-compaction-make-compact_control-order-signed.patch This patch was dropped because it was merged into mainline or a subsystem tree The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/ ------------------------------------------------------ From: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Subject: mm: compaction: make compact_control order signed "order" is -1 when compacting via /proc/sys/vm/compact_memory. Making it unsigned causes a bug in __compact_pgdat() when we test: if (cc->order < 0 || !compaction_deferred(zone, cc->order)) compact_zone(zone, cc); [akpm@xxxxxxxxxxxxxxxxxxxx: make __compact_pgdat()'s comparison match other code sites] Signed-off-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Cc: Minchan Kim <minchan@xxxxxxxxxx> Reviewed-by: Rik van Riel <riel@xxxxxxxxxx> Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/compaction.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -puN mm/compaction.c~mm-compaction-make-compact_control-order-signed mm/compaction.c --- a/mm/compaction.c~mm-compaction-make-compact_control-order-signed +++ a/mm/compaction.c @@ -35,7 +35,7 @@ struct compact_control { unsigned long migrate_pfn; /* isolate_migratepages search base */ bool sync; /* Synchronous migration */ - unsigned int order; /* order a direct compactor needs */ + int order; /* order a direct compactor needs */ int migratetype; /* MOVABLE, RECLAIMABLE etc */ struct zone *zone; }; @@ -692,7 +692,7 @@ static int __compact_pgdat(pg_data_t *pg INIT_LIST_HEAD(&cc->freepages); INIT_LIST_HEAD(&cc->migratepages); - if (cc->order < 0 || !compaction_deferred(zone, cc->order)) + if (cc->order == -1 || !compaction_deferred(zone, cc->order)) compact_zone(zone, cc); if (cc->order > 0) { _ Patches currently in -mm which might be from dan.carpenter@xxxxxxxxxx are origin.patch linux-next.patch thermal-spear13xx-checking-for-null-instead-of-is_err.patch backlight-lp855x_bl-silence-a-compiler-warning.patch drivers-leds-leds-tca6507c-cleanup-error-handling-in-tca6507_probe.patch epoll-remove-unneeded-variable-in-reverse_path_check.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html