Re: Update of file offset on write() etc. is non-atomic with I/O

[Al Viro]

On Mon, Mar 03, 2014 at 02:01:33PM -0800, Linus Torvalds wrote:
> On Mon, Mar 3, 2014 at 1:45 PM, Al Viro <viro@xxxxxxxxxxxxxxxxxx> wrote:
> >
> > And it looks like you've missed compat counterparts.
> 
> Grr. Yes, I missed them for compat_readv/writev - even though I
> grepped for various users, but I grepped for all the *other* cases (ie
> vfs_{read|write|llseek}). That means that the locker helper can't be
> static to fs/read_write.c. Oh well.

It can - compat read/write/read/writev are also there these days.  I think
that's the only thing you've missed, but I've several more places to trace
before I'll be sure.
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