[RFC PATCH 33/37] copy_page_from_iter(): don't need kmap_atomic() for kvec/bvec cases

[Al Viro]

kmap_local_page() is enough.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
 lib/iov_iter.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 4fcd0cc44e47..0a9e246178c1 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -882,9 +882,9 @@ size_t copy_page_from_iter(struct page *page, size_t offset, size_t bytes,
 	if (likely(iter_is_iovec(i)))
 		return copy_page_from_iter_iovec(page, offset, bytes, i);
 	if (iov_iter_is_bvec(i) || iov_iter_is_kvec(i) || iov_iter_is_xarray(i)) {
-		void *kaddr = kmap_atomic(page);
+		void *kaddr = kmap_local_page(page);
 		size_t wanted = _copy_from_iter(kaddr + offset, bytes, i);
-		kunmap_atomic(kaddr);
+		kunmap_local(kaddr);
 		return wanted;
 	}
 	WARN_ON(1);
-- 
2.11.0