Replace kmap_atomic()/kunmap_atomic() calls with kmap_local_page()/
kunmap_local() in copy_user_highpage() which can be invoked from both
preemptible and atomic context [1].
[1] https://lore.kernel.org/all/[email protected]/
Suggested-by: Deepak R Varma <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>
---
arch/loongarch/mm/init.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/loongarch/mm/init.c b/arch/loongarch/mm/init.c
index ddf1330c924c..4dd53427f657 100644
--- a/arch/loongarch/mm/init.c
+++ b/arch/loongarch/mm/init.c
@@ -43,11 +43,11 @@ void copy_user_highpage(struct page *to, struct page *from,
{
void *vfrom, *vto;
- vto = kmap_atomic(to);
- vfrom = kmap_atomic(from);
+ vfrom = kmap_local_page(from);
+ vto = kmap_local_page(to);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom);
- kunmap_atomic(vto);
+ kunmap_local(vfrom);
+ kunmap_local(vto);
/* Make sure this page is cleared on other CPU's too before using it */
smp_wmb();
}
--
2.39.3