lkml.org 
[lkml]   [2006]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH 0/7] Permit filesystem local caching and NFS superblock sharing [try #13]
From
Date
On Tue, 2006-09-05 at 10:40 +0100, David Howells wrote:
> Ian Kent <raven@themaw.net> wrote:
>
> > autofs v4 doesn't rely on mkdir never returning EACCESS just that it
> > return EEXIST if the directory exists. Never the less if the behavior of
> > stat will work in this case I'll change v4 to do it the way you suggest
> > (as v5 does already).
>
> As long as you don't rely on stat...mkdir working. That can go wrong if the
> dentry gets booted from the dcache by memory pressure in the "...".

I'm not clear on your point here.

If I stat a path and it exists then all is good and I'm done.
If I stat a path and I get something other than ENOENT then all is bad
and I return fail.
Otherwise I can just attempt to create the directory and fail if all is
bad with that.

This approach works in the current situation and would work for the
other situations in which that same process is used, not just for NFS
filesystems.

>
> David
> -
> To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2006-09-05 12:23    [W:0.109 / U:23.480 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site