Re: [PATCH] 2.6.6 buffer.c: bio_alloc() check

[Jens Axboe <axboe@suse.de>]

On Wed, Jun 02 2004, Yury Umanets wrote:
> [PATCH] 2.6.6 buffer.c: adds bio_alloc() check and error handling in
> fs/buffer.c.
> 
> Signed-off-by: Yury Umanets <torque@ukrpost.net>
> 
>  buffer.c |   25 +++++++++++++++++++++++++
>  1 files changed, 25 insertions(+)
> 
> diff -rupN ./linux-2.6.6/fs/buffer.c ./linux-2.6.6-modified/fs/buffer.c
> --- ./linux-2.6.6/fs/buffer.c	Mon May 10 05:32:38 2004
> +++ ./linux-2.6.6-modified/fs/buffer.c	Wed Jun  2 15:21:47 2004
> @@ -2712,6 +2712,31 @@ void submit_bh(int rw, struct buffer_hea
>  	 * submit_bio -> generic_make_request may further map this bio around
>  	 */
>  	bio = bio_alloc(GFP_NOIO, 1);
> +	if (bio == NULL) {

This is wrong, bio_alloc() never fails if it's called with __GFP_WAIT in
the gfp mask.

-- 
Jens Axboe