mm/page_alloc.c: get rid of __alloc_pages_high_priority()

[cascardo/linux.git] / lib / iov_iter.c

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 75232ad..5fecddc 100644 (file)
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -369,7 +369,7 @@ static void memcpy_from_page(char *to, struct page *page, size_t offset, size_t
        kunmap_atomic(from);
 }
 
-static void memcpy_to_page(struct page *page, size_t offset, char *from, size_t len)
+static void memcpy_to_page(struct page *page, size_t offset, const char *from, size_t len)
 {
        char *to = kmap_atomic(page);
        memcpy(to + offset, from, len);
@@ -383,9 +383,9 @@ static void memzero_page(struct page *page, size_t offset, size_t len)
        kunmap_atomic(addr);
 }
 
-size_t copy_to_iter(void *addr, size_t bytes, struct iov_iter *i)
+size_t copy_to_iter(const void *addr, size_t bytes, struct iov_iter *i)
 {
-       char *from = addr;
+       const char *from = addr;
        if (unlikely(bytes > i->count))
                bytes = i->count;
 
@@ -704,10 +704,10 @@ size_t csum_and_copy_from_iter(void *addr, size_t bytes, __wsum *csum,
 }
 EXPORT_SYMBOL(csum_and_copy_from_iter);
 
-size_t csum_and_copy_to_iter(void *addr, size_t bytes, __wsum *csum,
+size_t csum_and_copy_to_iter(const void *addr, size_t bytes, __wsum *csum,
                             struct iov_iter *i)
 {
-       char *from = addr;
+       const char *from = addr;
        __wsum sum, next;
        size_t off = 0;
        if (unlikely(bytes > i->count))
@@ -849,3 +849,4 @@ int import_single_range(int rw, void __user *buf, size_t len,
        iov_iter_init(i, rw, iov, 1, len);
        return 0;
 }
+EXPORT_SYMBOL(import_single_range);