mm: move MAP_SYNC to asm-generic/mman-common.h

[linux-2.6-block.git] / lib / iov_iter.c

diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index f99c41d4eb545e395dd9b7256b92919ff9b3a5c3..f1e0569b4539b8b8e976f6aff26b79f016f2edfd 100644 (file)
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -1634,9 +1634,9 @@ EXPORT_SYMBOL(dup_iter);
  * on-stack array was used or not (and regardless of whether this function
  * returns an error or not).
  *
- * Return: 0 on success or negative error code on error.
+ * Return: Negative error code on error, bytes imported on success
  */
-int import_iovec(int type, const struct iovec __user * uvector,
+ssize_t import_iovec(int type, const struct iovec __user * uvector,
                 unsigned nr_segs, unsigned fast_segs,
                 struct iovec **iov, struct iov_iter *i)
 {
@@ -1652,16 +1652,17 @@ int import_iovec(int type, const struct iovec __user * uvector,
        }
        iov_iter_init(i, type, p, nr_segs, n);
        *iov = p == *iov ? NULL : p;
-       return 0;
+       return n;
 }
 EXPORT_SYMBOL(import_iovec);
 
 #ifdef CONFIG_COMPAT
 #include <linux/compat.h>
 
-int compat_import_iovec(int type, const struct compat_iovec __user * uvector,
-                unsigned nr_segs, unsigned fast_segs,
-                struct iovec **iov, struct iov_iter *i)
+ssize_t compat_import_iovec(int type,
+               const struct compat_iovec __user * uvector,
+               unsigned nr_segs, unsigned fast_segs,
+               struct iovec **iov, struct iov_iter *i)
 {
        ssize_t n;
        struct iovec *p;
@@ -1675,7 +1676,7 @@ int compat_import_iovec(int type, const struct compat_iovec __user * uvector,
        }
        iov_iter_init(i, type, p, nr_segs, n);
        *iov = p == *iov ? NULL : p;
-       return 0;
+       return n;
 }
 #endif