From: Miklos Szeredi mszeredi@redhat.com
mainline inclusion commit b89ecd60d38ec042d63bdb376c722a16f92bcb88 category: feature bugzilla: https://gitee.com/openeuler/kernel/issues/I47QS2 CVE: NA
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Fix the "fuse: trying to steal weird page" warning.
Description from Johannes Weiner:
"Think of it as similar to PG_active. It's just another usage/heat indicator of file and anon pages on the reclaim LRU that, unlike PG_active, persists across deactivation and even reclaim (we store it in the page cache / swapper cache tree until the page refaults).
So if fuse accepts pages that can legally have PG_active set, PG_workingset is fine too."
Reported-by: Thomas Lindroth thomas.lindroth@gmail.com Fixes: 1899ad18c607 ("mm: workingset: tell cache transitions from workingset thrashing") Cc: stable@vger.kernel.org # v4.20 Signed-off-by: Miklos Szeredi mszeredi@redhat.com Signed-off-by: Liu Xinpeng liuxp11@chinatelecom.cn Signed-off-by: Ctyun Kernel ctyuncommiter01@chinatelecom.cn --- fs/fuse/dev.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/fs/fuse/dev.c b/fs/fuse/dev.c index 498a4fa..58bf254 100644 --- a/fs/fuse/dev.c +++ b/fs/fuse/dev.c @@ -837,6 +837,7 @@ static int fuse_check_page(struct page *page) 1 << PG_uptodate | 1 << PG_lru | 1 << PG_active | + 1 << PG_workingset | 1 << PG_reclaim | 1 << PG_waiters))) { printk(KERN_WARNING "fuse: trying to steal weird page\n");