X-Git-Url: https://git.kernel.dk/?a=blobdiff_plain;f=include%2Flinux%2Fuio.h;h=f2d36a3d30052db827fab68e9278fc1b693068ca;hb=65fd5252b40c68177946001edf2078bbbefa2c83;hp=804e34c6f981de7402ba6a39bd0375b3a3dd0efe;hpb=8237d99c3b1b8112d1eb7a7f763b5a9afde847ae;p=linux-2.6-block.git

diff --git a/include/linux/uio.h b/include/linux/uio.h
index 804e34c6f981..f2d36a3d3005 100644
--- a/include/linux/uio.h
+++ b/include/linux/uio.h
@@ -39,7 +39,10 @@ struct iov_iter {
 	};
 	union {
 		unsigned long nr_segs;
-		int idx;
+		struct {
+			int idx;
+			int start_idx;
+		};
 	};
 };
 
@@ -81,6 +84,7 @@ unsigned long iov_shorten(struct iovec *iov, unsigned long nr_segs, size_t to);
 size_t iov_iter_copy_from_user_atomic(struct page *page,
 		struct iov_iter *i, unsigned long offset, size_t bytes);
 void iov_iter_advance(struct iov_iter *i, size_t bytes);
+void iov_iter_revert(struct iov_iter *i, size_t bytes);
 int iov_iter_fault_in_readable(struct iov_iter *i, size_t bytes);
 size_t iov_iter_single_seg_count(const struct iov_iter *i);
 size_t copy_page_to_iter(struct page *page, size_t offset, size_t bytes,