From: IWAMOTO Toshihiro <iwamoto@valinux.co.jp>

It seems that O_DIRECT write sometimes leaks memory.

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

 25-akpm/fs/direct-io.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletion(-)

diff -puN fs/direct-io.c~direct-io-write-memory-leak-fix fs/direct-io.c
--- 25/fs/direct-io.c~direct-io-write-memory-leak-fix	Thu Oct 28 15:24:37 2004
+++ 25-akpm/fs/direct-io.c	Thu Oct 28 15:24:37 2004
@@ -844,8 +844,10 @@ do_holes:
 				char *kaddr;
 
 				/* AKPM: eargh, -ENOTBLK is a hack */
-				if (dio->rw == WRITE)
+				if (dio->rw == WRITE) {
+					page_cache_release(page);
 					return -ENOTBLK;
+				}
 
 				if (dio->block_in_file >=
 					i_size_read(dio->inode)>>blkbits) {
_