Re: [PATCH] tmpfs: support aio

[Harvey Harrison <harvey.harrison@gmail.com>]

On Wed, 2008-05-28 at 16:58 -0700, Andrew Morton wrote:
> On Thu, 29 May 2008 00:13:35 +0100 (BST)
> Hugh Dickins <hugh@veritas.com> wrote:
> hm.  This version:
> 
> static ssize_t shmem_file_aio_read(struct kiocb *iocb,
> 		const struct iovec *iov, unsigned long nr_segs, loff_t pos)
> {
> 	struct file *filp = iocb->ki_filp;
> 	ssize_t retval;
> 	unsigned long seg;
> 	size_t count;
> 	loff_t *ppos = &iocb->ki_pos;
> 
> 	count = 0;
> 	retval = generic_segment_checks(iov, &nr_segs, &count, VERIFY_WRITE);
> 	if (retval)
> 		return retval;
> 	if (count == 0)
> 		return 0;
> 
> 	retval = 0;

retval has to be 0 here, no need to assign it again?

Harvey