On Wed, Jan 17, 2018 at 10:09:28AM +0000, Steven Whitehouse wrote:
> Hi,
>
>
> On 17/01/18 09:28, Joseph Qi wrote:
> > Hi All,
> >
> > commit 9fe55eea7e4b ("Fix race when checking i_size on direct i/o read")
> > has removed the pos check due to the race case.
> >
> > Now if I want to do direct read on a file which size is not sector
> > alignment, it will return EINVAL in the last round. That means I have to
> > handle the case by checking file size in user space, which I think is a
> > bit inconvenient.
> What do you mean by "not sector alignment"? Are you intending to read files
> with any arbitrary size, or those with 512 byte alignment on a filesystem
> with some larger block size, or something else?
I think he's saying that the file he's trying to read has a length which
is not a multiple of 512.
