The patch titled
Subject: mm: downgrade VM_BUG in isolate_lru_page() to warning
has been removed from the -mm tree. Its filename was
mm-downgrade-vm_bug-in-isolate_lru_page-to-warning.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx>
Subject: mm: downgrade VM_BUG in isolate_lru_page() to warning
Calling isolate_lru_page() is wrong and shouldn't happen, but it not
nessesary fatal: the page just will not be isolated if it's not on LRU.
Let's downgrade the VM_BUG_ON_PAGE() to WARN_RATELIMIT().
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Vlastimil Babka <vbabka@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
Acked-by: Michal Hocko <mhocko@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmscan.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN mm/vmscan.c~mm-downgrade-vm_bug-in-isolate_lru_page-to-warning mm/vmscan.c
--- a/mm/vmscan.c~mm-downgrade-vm_bug-in-isolate_lru_page-to-warning
+++ a/mm/vmscan.c
@@ -1443,7 +1443,7 @@ int isolate_lru_page(struct page *page)
int ret = -EBUSY;
VM_BUG_ON_PAGE(!page_count(page), page);
- VM_BUG_ON_PAGE(PageTail(page), page);
+ WARN_RATELIMIT(PageTail(page), "trying to isolate tail page");
if (PageLRU(page)) {
struct zone *zone = page_zone(page);
_
Patches currently in -mm which might be from kirill.shutemov@xxxxxxxxxxxxxxx are
mm-dax-check-for-pmd_none-after-split_huge_pmd.patch
ipc-shm-handle-removed-segments-gracefully-in-shm_mmap.patch
thp-cleanup-split_huge_page.patch
thp-vmstats-count-deferred-split-events.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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