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-rw-r--r--include/linux/highmem.h4
1 files changed, 0 insertions, 4 deletions
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 61a5e5eb27f0..7dcbc82f3b7b 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -68,8 +68,6 @@ static inline void clear_user_highpage(struct page *page, unsigned long vaddr)
void *addr = kmap_atomic(page, KM_USER0);
clear_user_page(addr, vaddr, page);
kunmap_atomic(addr, KM_USER0);
- /* Make sure this page is cleared on other CPU's too before using it */
- smp_wmb();
}
#ifndef __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
@@ -172,8 +170,6 @@ static inline void copy_user_highpage(struct page *to, struct page *from,
copy_user_page(vto, vfrom, vaddr, to);
kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
- /* Make sure this page is cleared on other CPU's too before using it */
- smp_wmb();
}
#endif