[lkml]   [2012]   [Apr]   [17]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH RFC] vfs: make fstatat retry on ESTALE errors from getattr call
On Tue, 2012-04-17 at 09:32 -0400, Jeff Layton wrote:
> On Tue, 17 Apr 2012 15:12:20 +0200
> Miklos Szeredi <> wrote:

> To do that would require protocol support that we simply don't have. We
> don't have a way to (for instance) say via NFS "give me the attributes
> for this filename". Well, at least not for NFSv3...

What's wrong with LOOKUP?

> With v4 you could theoretically construct a compound that does that,
> but you'd have to assume that the server won't release the reference to
> the inode midway through the compound. That's a reasonably safe
> assumption.

Actually, NFSv4 is the one that has the problem: there are no atomicity
guarantees within compounds, so you could theoretically get an ESTALE in
the GETATTR part of our lookup compound.

Trond Myklebust
Linux NFS client maintainer


 \ /
  Last update: 2012-04-17 16:07    [W:0.157 / U:34.524 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site