From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Tue, 14 Jul 2009 14:50:56 GMT
Subject: Re: Fix extraneous lstat's in 'git checkout -f'
Message-ID: <alpine.LFD.2.01.0907140750290.13838@localhost.localdomain>
In-Reply-To: <7vzlb7hc7y.fsf@alter.siamese.dyndns.org>



On Tue, 14 Jul 2009, Junio C Hamano wrote:

> Linus Torvalds <torvalds@linux-foundation.org> writes:
> 
> > Quite frankly, I'd like for us to at least think about removing CE_VALID. 
> 
> This is heavy.  I personally do not use this flag, nor know anybody who
> does, but deviating from the original purpose of CE_VALID, which was to
> avoid lstat() on slow filesystems, people have advised/advocated its use
> for "narrow checkout".

Ahh. I kind of was aware of that, but had totally forgotten.

And in that case, I guess it's also fine. In fact, for that case CE_VALID 
would tend to really mean "always assume CE_UPTODATE", so then the patch I 
sent out doesn't really necessarily need the whole "known_uptodate()" 
thing, and could just use

	if (o->reset && !ce_valid(old)) {

instead.

Which also makes my other worries go away.

			Linus