[PATCH 03/18] mm: use kmap_local_page in memzero_page
From: Christoph Hellwig
Date: Tue Jun 15 2021 - 09:27:07 EST
No need for kmap_atomic here.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx>
Reviewed-by: Ira Weiny <ira.weiny@xxxxxxxxx>
---
include/linux/highmem.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index d0497c0daf80..d3df0e2db44f 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -338,9 +338,9 @@ static inline void memcpy_to_page(struct page *page, size_t offset,
static inline void memzero_page(struct page *page, size_t offset, size_t len)
{
- char *addr = kmap_atomic(page);
+ char *addr = kmap_local_page(page);
memset(addr + offset, 0, len);
- kunmap_atomic(addr);
+ kunmap_local_dirty(page, addr);
}
#endif /* _LINUX_HIGHMEM_H */
--
2.30.2