lkml.org 
[lkml]   [2002]   [Sep]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [BK-PATCH-2.5] Introduce new VFS inode cache lookup function
David Woodhouse writes:
>
> aia21@cantab.net said:
> > The below ChangeSet against Linus' current BK tree adds a new function
> > to the VFS, fs/inode.c::ilookup().
>
> > This is needed in NTFS when writing out inode metadata pages via the
> > VM dirty page code paths as we need to know whether there is an active
> > inode in icache but we don't want to do an iget() because if the inode
> > is not active then there is no need to write it... - I can just skip
> > onto the next one instead... - If there is an active inode then I need
> > to get the struct inode in order to perform appropriate locking for
> > the write out to happen.
>
> Yum. I need similar functionality for JFFS2 garbage collection. When moving
> a data node, we currently iget() the inode to which it belongs and update
> its in-core extent lists accordingly. If the inode in question wasn't
> already present, there's no real need to do that.
>

Reiser4 also needs this.

> --
> dwmw2
>

Nikita.

>
-
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: 2005-03-22 13:28    [W:0.076 / U:0.516 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site