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| author | Joonsoo Kim <iamjoonsoo.kim@lge.com> | 2020-08-11 18:30:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-08-12 10:57:56 -0700 |
| commit | aae466b0052e1888edd1d7f473d4310d64936196 (patch) | |
| tree | 32ee53dbc2ad3210e7b49240724bfbe40aa3f516 /mm/workingset.c | |
| parent | 3852f6768ede542ed48b9077bedf482c7ecb6327 (diff) | |
| download | linux-rpi-aae466b0052e1888edd1d7f473d4310d64936196.tar.gz linux-rpi-aae466b0052e1888edd1d7f473d4310d64936196.tar.bz2 linux-rpi-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/workingset.c')
| -rw-r--r-- | mm/workingset.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/mm/workingset.c b/mm/workingset.c index 941bbaa6c262..8cbe4e3cbe5c 100644 --- a/mm/workingset.c +++ b/mm/workingset.c @@ -353,15 +353,22 @@ void workingset_refault(struct page *page, void *shadow) /* * Compare the distance to the existing workingset size. We * don't activate pages that couldn't stay resident even if - * all the memory was available to the page cache. Whether - * cache can compete with anon or not depends on having swap. + * all the memory was available to the workingset. Whether + * workingset competition needs to consider anon or not depends + * on having swap. */ workingset_size = lruvec_page_state(eviction_lruvec, NR_ACTIVE_FILE); - if (mem_cgroup_get_nr_swap_pages(memcg) > 0) { + if (!file) { workingset_size += lruvec_page_state(eviction_lruvec, - NR_INACTIVE_ANON); + NR_INACTIVE_FILE); + } + if (mem_cgroup_get_nr_swap_pages(memcg) > 0) { workingset_size += lruvec_page_state(eviction_lruvec, NR_ACTIVE_ANON); + if (file) { + workingset_size += lruvec_page_state(eviction_lruvec, + NR_INACTIVE_ANON); + } } if (refault_distance > workingset_size) goto out; |