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Re: VFS + path walktrough

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To: linux kernel list <linux-kernel@...>
Date: Monday, May 5, 2008 - 9:43 am

* Al Viro <viro@ZenIV.linux.org.uk> wrote:

hmm, I though this would be done before the link_path_walk() 
call happens ;-o


Only for those filesystems who *really* want to do it by 
themselves and set the appropriate call vector. All other 
fs'es will just leave it blank (even don't have to be touched)
and so the old way remains for them.

To get around mointpoint issues, we could at least do it only
when an special mount option is given and add an big-fat warning
that mountpoints within these mounts won't work. So these fast
lookups will only happen when:

#1: the fs explicitly supports it
#2: mounted with an special option

And if you use that option, you'll simply loose the ability
of using mointpoints within this specific mount. This won't 
affect any situation other than #1 && #2, IMHO this is better
than no chance of fast lookups at all. Of course, an cleaner
approach would be better, but it's IMHO not critical.

BTW: there are (or have been) certain speed improvements for 
specific situations w/ loosing other standard features, eg.
fast bridging.


cu
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Messages in current thread:
VFS + path walktrough, Enrico Weigelt, (Mon May 5, 8:40 am)
Re: VFS + path walktrough, Enrico Weigelt, (Mon May 5, 9:06 am)
Re: VFS + path walktrough, Al Viro, (Mon May 5, 9:13 am)
Re: VFS + path walktrough, Enrico Weigelt, (Mon May 5, 9:43 am)
Re: VFS + path walktrough, Al Viro, (Mon May 5, 11:35 am)
Re: VFS + path walktrough, Miklos Szeredi, (Mon May 5, 12:43 pm)
Re: VFS + path walktrough, Al Viro, (Mon May 5, 1:14 pm)
Re: VFS + path walktrough, Miklos Szeredi, (Mon May 5, 1:33 pm)
Re: VFS + path walktrough, Al Viro, (Mon May 5, 1:40 pm)
Re: VFS + path walktrough, Enrico Weigelt, (Mon May 5, 2:23 pm)
Re: VFS + path walktrough, Al Viro, (Mon May 5, 2:34 pm)
Re: VFS + path walktrough, Enrico Weigelt, (Mon May 5, 3:02 pm)
Re: VFS + path walktrough, Al Viro, (Mon May 5, 3:09 pm)
Re: VFS + path walktrough, Miklos Szeredi, (Mon May 5, 2:03 pm)
Re: VFS + path walktrough, Enrico Weigelt, (Mon May 5, 2:50 pm)
Re: VFS + path walktrough, Miklos Szeredi, (Mon May 5, 2:31 pm)
Re: VFS + path walktrough, Trond Myklebust, (Mon May 5, 4:16 pm)
Re: VFS + path walktrough, Miklos Szeredi, (Mon May 5, 4:35 pm)
Re: VFS + path walktrough, Miklos Szeredi, (Mon May 5, 1:03 pm)
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