diff options
| 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/memory.c | |
| parent | 3852f6768ede542ed48b9077bedf482c7ecb6327 (diff) | |
| download | linux-aae466b0052e1888edd1d7f473d4310d64936196.tar.bz2 | |
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/memory.c')
| -rw-r--r-- | mm/memory.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/mm/memory.c b/mm/memory.c index 6fe8b5b22c57..de311fc7639e 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3098,6 +3098,7 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) int locked; int exclusive = 0; vm_fault_t ret = 0; + void *shadow = NULL; if (!pte_unmap_same(vma->vm_mm, vmf->pmd, vmf->pte, vmf->orig_pte)) goto out; @@ -3149,13 +3150,9 @@ vm_fault_t do_swap_page(struct vm_fault *vmf) goto out_page; } - /* - * XXX: Move to lru_cache_add() when it - * supports new vs putback - */ - spin_lock_irq(&page_pgdat(page)->lru_lock); - lru_note_cost_page(page); - spin_unlock_irq(&page_pgdat(page)->lru_lock); + shadow = get_shadow_from_swap_cache(entry); + if (shadow) + workingset_refault(page, shadow); lru_cache_add(page); swap_readpage(page, true); |