kmap_local_page() is enough there. Moreover, we can use _copy_to_iter()
for actual copying in those cases - no useful extra checks on the
address we are copying from in that call.
Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
---
lib/iov_iter.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 9ecbf59c3378..4fcd0cc44e47 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -832,9 +832,9 @@ static size_t __copy_page_to_iter(struct page *page, size_t offset, size_t bytes
if (likely(iter_is_iovec(i)))
return copy_page_to_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);
- size_t wanted = copy_to_iter(kaddr + offset, bytes, i);
- kunmap_atomic(kaddr);
+ void *kaddr = kmap_local_page(page);
+ size_t wanted = _copy_to_iter(kaddr + offset, bytes, i);
+ kunmap_local(kaddr);
return wanted;
}
if (iov_iter_is_pipe(i))
--
2.11.0
