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authorAl Viro <viro@zeniv.linux.org.uk>2021-04-27 12:33:24 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2021-06-10 11:45:22 -0400
commit55ca375c5dcc7aebd89de42f00ff18f5c40d25f3 (patch)
treeb4fd73d7f8c70139cc5a01295927952d8dc87d40 /lib/iov_iter.c
parentc1d4d6a9ae88b87262fb5426823930bc471f6034 (diff)
copy_page_from_iter(): don't need kmap_atomic() for kvec/bvec cases
kmap_local_page() is enough. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'lib/iov_iter.c')
-rw-r--r--lib/iov_iter.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 8aff4eb4fdfd..ba7eb6557750 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -871,9 +871,9 @@ 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);