From: Chris Mason <mason@suse.com>

BUG 40701 correct math errors for aio O_SYNC writes that lead
to the aio code thinking the write is complete while we are still
waiting for some pages


 filemap.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)


--- aio/mm/filemap.c	2004-06-26 15:50:43.132941192 -0700
+++ O_SYNC-write/mm/filemap.c	2004-06-26 16:01:26.559125544 -0700
@@ -208,7 +208,7 @@ static ssize_t wait_on_page_writeback_ra
 	struct pagevec pvec;
 	int nr_pages;
 	int ret = 0, done = 0;
-	pgoff_t index, curr = start;
+	pgoff_t index;
 
 	if (end < start)
 		return 0;
@@ -232,12 +232,9 @@ static ssize_t wait_on_page_writeback_ra
 				unlock_page(page);
 				continue;
                        }
-			curr = page->index;
 			unlock_page(page);
 			ret = wait_on_page_writeback_wq(page, wait);
 			if (ret == -EIOCBRETRY) {
-				if (curr > start)
-					ret = curr - start;
 				done = 1;
 				break;
 			}