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-rw-r--r--fs/proc/page.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/proc/page.c b/fs/proc/page.c
index 0be626d85331..712f1b9992cc 100644
--- a/fs/proc/page.c
+++ b/fs/proc/page.c
@@ -160,6 +160,8 @@ u64 stable_page_flags(struct page *page)
u |= kpf_copy_bit(k, KPF_LOCKED, PG_locked);
u |= kpf_copy_bit(k, KPF_SLAB, PG_slab);
+ if (PageTail(page) && PageSlab(compound_head(page)))
+ u |= 1 << KPF_SLAB;
u |= kpf_copy_bit(k, KPF_ERROR, PG_error);
u |= kpf_copy_bit(k, KPF_DIRTY, PG_dirty);