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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2020-08-12 03:30:50 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 19:57:56 +0200 |
| commit | aae466b0052e1888edd1d7f473d4310d64936196 (patch) | |
| tree | 32ee53dbc2ad3210e7b49240724bfbe40aa3f516 /mm/vmscan.c | |
| parent | mm/swapcache: support to handle the shadow entries (diff) | |
| download | linux-aae466b0052e1888edd1d7f473d4310d64936196.tar.xz linux-aae466b0052e1888edd1d7f473d4310d64936196.zip | |
mm/swap: implement workingset detection for anonymous LRU
This patch implements workingset detection for anonymous LRU. All the
infrastructure is implemented by the previous patches so this patch just
activates the workingset detection by installing/retrieving the shadow
entry and adding refault calculation.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Link: http://lkml.kernel.org/r/1595490560-15117-6-git-send-email-iamjoonsoo.kim@lge.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmscan.c')
| -rw-r--r-- | mm/vmscan.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c index e84c4dd08c4e..66d73fea80e4 100644 --- a/mm/vmscan.c +++ b/mm/vmscan.c @@ -854,6 +854,7 @@ static int __remove_mapping(struct address_space *mapping, struct page *page, { unsigned long flags; int refcount; + void *shadow = NULL; BUG_ON(!PageLocked(page)); BUG_ON(mapping != page_mapping(page)); @@ -896,13 +897,13 @@ static int __remove_mapping(struct address_space *mapping, struct page *page, if (PageSwapCache(page)) { swp_entry_t swap = { .val = page_private(page) }; mem_cgroup_swapout(page, swap); - __delete_from_swap_cache(page, swap, NULL); + if (reclaimed && !mapping_exiting(mapping)) + shadow = workingset_eviction(page, target_memcg); + __delete_from_swap_cache(page, swap, shadow); xa_unlock_irqrestore(&mapping->i_pages, flags); put_swap_page(page, swap); - workingset_eviction(page, target_memcg); } else { void (*freepage)(struct page *); - void *shadow = NULL; freepage = mapping->a_ops->freepage; /* |