Hi,
On Fri, 2002-12-06 at 19:45, Andrew Morton wrote:
> > I see what ext3 gains from your current patch in the unmount case, but
> > the sync case is really unchanged because of interaction with kupdate.
>
> True. And I'd like /bin/sync to _really_ be synchronous because
> I use `reboot -f' all the time. Even though SuS-or-POSIX say that
> sync() only needs to _start_ the IO. That's rather silly.
But at the same time I'd like to avoid sync becoming serialised on its
writes. If you've got a lot of filesystems mounted, doing each
filesystem's sync sequentially and synchronously is going to be a lot
slower than allowing async syncs. In other words, for sync(2) we really
want async commit submission followed by a synchronous wait for
completion. And that's probably more churn than I'd like to see at this
stage for 2.4.
Cheers,
Stephen
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This archive was generated by hypermail 2b29 : Sat Dec 07 2002 - 22:00:28 EST