[patch 4/6] generic_file_buffered_write(): fix page prefaulting

Andrew Morton
2006-10-11T06:18:02Z

generic_file_buffered_write() is passing the wrong length arg to
fault_in_pages_readable() (I think - please check).

Signed-off-by: Andrew Morton <akpm@osdl.org>
---

mm/filemap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff -puN mm/filemap.c~generic_file_buffered_write-fix-page-prefaulting mm/filemap.c
--- a/mm/filemap.c~generic_file_buffered_write-fix-page-prefaulting
+++ a/mm/filemap.c
@@ -2110,7 +2110,7 @@ generic_file_buffered_write(struct kiocb
* same page as we're writing to, without it being marked
* up-to-date.
*/
- fault_in_pages_readable(buf, maxlen);
+ fault_in_pages_readable(buf, bytes);

page = __grab_cache_page(mapping,index,&cached_page,&lru_pvec);
if (!page) {
_