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SubjectRe: [PATCH] 2.4: Restore current->files in flush_old_exec
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On Sat, Aug 09, 2003 at 04:20:38AM +0200, Andreas Gruenbacher wrote:
> On Sat, 9 Aug 2003, Herbert Xu wrote:
>
> > On Sat, Aug 09, 2003 at 11:11:16AM +1000, herbert wrote:
> > >
> > > At this point, I believe the unshare_files stuff should be fine from
> > > a correctness point of view. However, there is still a performance
> > > problem as every ELF exec call ends up dupliating the files structure
> > > as well as walking through all file locks.
> >
> > Here is the patch that ensures files is only duplicated when necessary.
>
> This patch is correct but unnecessary: steal_locks already tests for this
> condition.

Yes but when you call unshare_files twice one of them will have to
copy.
--
Debian GNU/Linux 3.0 is out! ( http://www.debian.org/ )
Email: Herbert Xu ~{PmV>HI~} <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
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