Re: [patch] [possible race in ext2] Re: how to write get_block?

[Alexander Viro]

On Mon, 11 Oct 1999, Stephen C. Tweedie wrote:

> Hi,
> 
> On Sun, 10 Oct 1999 16:57:18 +0200 (CEST), Andrea Arcangeli
> <[EMAIL PROTECTED]> said:
> 
> > My point was that even being forced to do a lookup before creating
> > each empty buffer, will be still faster than 2.2.x as in 2.3.x the hash
> > will contain only metadata. Less elements means faster lookups.
> 
> The _fast_ quick fix is to maintain a per-inode list of dirty buffers
> and to invalidate that list when we do a delete.  This works for
> directories if we only support truncate back to zero --- it obviously
> gets things wrong if we allow partial truncates of directories (but why
> would anyone want to allow that?!)

AFFS. OTOH there we are dropping the known bh every time.