Re: [PATCH] nanosecond resolution for stat(2)

From: Andi Kleen (
Date: Mon Sep 23 2002 - 15:05:32 EST

On Mon, Sep 23, 2002 at 08:57:32PM +0200, Linus Torvalds wrote:
> On Mon, 23 Sep 2002, Andi Kleen wrote:
> >
> > Some drivers (like mouse drivers or tty) do dubious inode [mac] time
> > accesses of the on disk inode and without even marking it dirty. This is
> > likely a bug.
> No, it is intentional. At least some versions of "w" (maybe all) will use
> the tty access times to judge how long the tty has been idle. The point is
> that this is all information that is interesting (and useful), but not
> worth sending to disk - it is useful only as long as the inode remains
> locked in-core for other reasons, ie being in use.
> (It's not only "not worth it" to send to disk, but it would be positively
> wrong to even _try_ updating the disk with the access times, since we want
> these things to work even with a read-only /dev).

Ok. But it is surely not needed for mouse drivers, isn't it ?
(I removed a few updates in them)

I didn't change tty in this regard anyways.

Would you consider to merge the patch ?

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

This archive was generated by hypermail 2b29 : Mon Sep 23 2002 - 22:00:40 EST