lkml.org 
[lkml]   [2007]   [Aug]   [10]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [RFC PATCH 1/4] pass open file to ->setattr()
FromMiklos Szeredi <>
DateFri, 10 Aug 2007 07:40:25 +0200
> >> > This is needed to be able to correctly implement open-unlink-fsetattr
> >> > semantics in some filesystem such as sshfs, without having to resort
> >> > to "silly-renaming".
> >> 
> >> How do you plan to do that?
> > 
> > Easy: the SFTP protocol has stateful opens and defines an FSTAT call.
> 
> Is it possible to reconnect without umounting?

Yes, but open files and in-progress requests are lost at reconnect.

> If yes, the unlinked files would be lost in spite of being opened,
> wouldn't they?

Sure.  Obviously one of the drawbacks of a stateful protocol is that
the server state can't survive a reconnect.

But that sort of reliability has never been the goal of sshfs.  And
even if that was needed, it could probably be much better handled in a
lower layer.

Miklos
-
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: 2007-08-10 07:45    [from the cache]
©2003-2008