Re: [patch] pagecache SMP-scalability patch [was: spinlock usage]

[Alexander Viro]

On Wed, 21 Mar 2001, Ingo Molnar wrote:

> 
> On Wed, 21 Mar 2001, Alexander Viro wrote:
> 
> > > (about lstat(): IMO lstat() should not call into the lowlevel FS code.)
> >
> > a) revalidation on network filesystems
> > b) just about anything layered would win from ability to replace the
> > normal stat() behaviour (think of UI/GID replacement, etc.)
> 
> sorry, i meant ext2fs - but this was fixed by your VFS scalability changes
> already :-)

???
<checking 2.2.0>
Nope, no calls into ext2/*. do_revalidate() seeing NULL ->i_revalidate
and doing nothing, lnamei() doing usual lookup, cp_old_stat() not touching
fs code at all...

The only change was s/lnamei()/user_path_walk_link()/ and they are
equivalent, modulo different API (filling nameidata vs. returning
dentry).
                                                        Cheers,
                                                                Al

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