On Tue, 17 Jul 2001, David J. Picard wrote:
>
> Basically, what is happening is the read requests are being pushed to
> the front of the IO queue - before the preceding write for the same
> sector.

This is a bug in the USER, not in the code.

The locking is NOT supposed to be done at the elevator level (or, indeed
at ANY _io_ level), but must be done by upper layers.

If upper layers do not do this locking, then THAT is the bug.

What filesystem do you see the bug with?

		Linus

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/