diff options
| author | Minchan Kim <[email protected]> | 2021-04-29 23:01:01 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2021-04-30 11:20:42 -0700 |
| commit | cef4c7d29d776643e86b600e5ea823f047445d0b (patch) | |
| tree | e46030fddae06c069c0b911d012f7535a254667d | |
| parent | 77febec206262bd80c4176f2281a7970cfe69536 (diff) | |
mm: remove lru_add_drain_all in alloc_contig_range
__alloc_contig_migrate_range already has lru_add_drain_all call via
migrate_prep. It's necessary to move LRU taget pages into LRU list to be
able to isolated. However, lru_add_drain_all call after
__alloc_contig_migrate_range is pointless since it has changed source page
freeing from putback_lru_pages to put_page[1].
This patch removes it.
[1] c6c919eb90e0, ("mm: use put_page() to free page instead of putback_lru_page()"
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Minchan Kim <[email protected]>
Reviewed-by: Oscar Salvador <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: Michal Hocko <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index e59d5450d891..c73557bb8c58 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -8649,8 +8649,6 @@ int alloc_contig_range(unsigned long start, unsigned long end, * isolated thus they won't get removed from buddy. */ - lru_add_drain_all(); - order = 0; outer_start = start; while (!PageBuddy(pfn_to_page(outer_start))) { |