The patch titled
unevictable lru: remember page's active state
has been added to the -mm tree. Its filename is
unevictable-lru-infrastructure-remember-pages-active-state.patch
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------------------------------------------------------
Subject: unevictable lru: remember page's active state
From: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Fix to unevictable-lru-infrastructure.patch
Not sure this is absolutely required, but:
Preserve page's incoming active flag across retries in
putback_lru_page().
Signed-off-by: Lee Schermerhorn <lee.schermerhorn@xxxxxx>
Cc: Rik van Riel <riel@xxxxxxxxxx>
Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff -puN mm/vmscan.c~unevictable-lru-infrastructure-remember-pages-active-state mm/vmscan.c
--- a/mm/vmscan.c~unevictable-lru-infrastructure-remember-pages-active-state
+++ a/mm/vmscan.c
@@ -483,12 +483,12 @@ int remove_mapping(struct address_space
void putback_lru_page(struct page *page)
{
int lru;
+ int active = !!TestClearPageActive(page);
int was_unevictable = PageUnevictable(page);
VM_BUG_ON(PageLRU(page));
redo:
- lru = !!TestClearPageActive(page);
ClearPageUnevictable(page);
if (page_evictable(page, NULL)) {
@@ -498,7 +498,7 @@ redo:
* unevictable page on [in]active list.
* We know how to handle that.
*/
- lru += page_is_file_cache(page);
+ lru = active + page_is_file_cache(page);
lru_cache_add_lru(page, lru);
} else {
/*
_
Patches currently in -mm which might be from lee.schermerhorn@xxxxxx are
vmscan-use-an-indexed-array-for-lru-variables.patch
define-page_file_cache-function.patch
vmscan-split-lru-lists-into-anon-file-sets.patch
pageflag-helpers-for-configed-out-flags.patch
unevictable-lru-infrastructure.patch
unevictable-lru-infrastructure-nommu-fix.patch
unevictable-lru-infrastructure-remember-pages-active-state.patch
unevictable-lru-page-statistics.patch
ramfs-and-ram-disk-pages-are-unevictable.patch
shm_locked-pages-are-unevictable.patch
mlock-mlocked-pages-are-unevictable.patch
doc-unevictable-lru-and-mlocked-pages-documentation.patch
mlock-downgrade-mmap-sem-while-populating-mlocked-regions.patch
mmap-handle-mlocked-pages-during-map-remap-unmap.patch
vmstat-mlocked-pages-statistics.patch
swap-cull-unevictable-pages-in-fault-path.patch
vmstat-unevictable-and-mlocked-pages-vm-events.patch
vmscan-unevictable-lru-scan-sysctl.patch
mlock-count-attempts-to-free-mlocked-page.patch
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