The patch titled
Subject: thp: make deferred_split_scan() work again
has been added to the -mm tree. Its filename is
thp-get-deferred_split_scan-work-again.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/thp-get-deferred_split_scan-work-again.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/thp-get-deferred_split_scan-work-again.patch
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------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: thp: make deferred_split_scan() work again
We need to iterate over split_queue, not local empty list to get anything
split from the shrinker.
Fixes: e3ae19535c66 ("thp: limit number of object to scan on deferred_split_scan()")
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Andrea Arcangeli <aarcange@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/huge_memory.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/huge_memory.c~thp-get-deferred_split_scan-work-again mm/huge_memory.c
--- a/mm/huge_memory.c~thp-get-deferred_split_scan-work-again
+++ a/mm/huge_memory.c
@@ -3482,7 +3482,7 @@ static unsigned long deferred_split_scan
spin_lock_irqsave(&pgdata->split_queue_lock, flags);
/* Take pin on all head pages to avoid freeing them under us */
- list_for_each_safe(pos, next, &list) {
+ list_for_each_safe(pos, next, &pgdata->split_queue) {
page = list_entry((void *)pos, struct page, mapping);
page = compound_head(page);
if (get_page_unless_zero(page)) {
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
mempolicy-do-not-try-to-queue-pages-from-vma_migratable.patch
mm-downgrade-vm_bug-in-isolate_lru_page-to-warning.patch
thp-get-deferred_split_scan-work-again.patch
ipc-shm-handle-removed-segments-gracefully-in-shm_mmap.patch
thp-cleanup-split_huge_page.patch
mm-make-swapin-readahead-to-improve-thp-collapse-rate-fix.patch
mm-make-swapin-readahead-to-improve-thp-collapse-rate-fix-2.patch
mm-make-swapin-readahead-to-improve-thp-collapse-rate-fix-3.patch
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