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authorKirill A. Shutemov <[email protected]>2016-02-05 15:36:36 -0800
committerLinus Torvalds <[email protected]>2016-02-05 18:10:40 -0800
commitcf2a82ee432730ab25c21d054c67f296af4fc4bd (patch)
treefac6337408fc709cc9b9978681d0847178677e44
parent77bf45e78050790d8f7fc30b87a0ca674bf6265a (diff)
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 <[email protected]> Cc: Dmitry Vyukov <[email protected]> Cc: Vlastimil Babka <[email protected]> Cc: David Rientjes <[email protected]> Cc: Naoya Horiguchi <[email protected]> Acked-by: Michal Hocko <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
-rw-r--r--mm/vmscan.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/vmscan.c b/mm/vmscan.c
index eb3dd37ccd7c..71b1c29948db 100644
--- a/mm/vmscan.c
+++ b/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);