On Mon, Jun 28, 2010 at 10:04:32AM -0500, Goldwyn Rodrigues wrote:
> Track negative dentries by recording the generation number of the parent
> directory in d_fsdata. The generation number for the parent directory is
> recorded in the inode_info, which increments every time the lock on the
> directory is dropped.
>
> If the generation number of the parent directory and the negative dentry
> matches, there is no need to perform the revalidate, else a revalidate
> is forced. This improves performance in situations where nodes look for
> the same non-existent file multiple times.
>
> Thanks Mark for explaining the DLM sequence.
>
> Signed-off-by: Goldwyn Rodrigues <[email protected]>
This patch is now in the merge-window branch of ocfs2.git.
Joel
--
"Not everything that can be counted counts, and not everything
that counts can be counted."
- Albert Einstein
Joel Becker
Consulting Software Developer
Oracle
E-mail: [email protected]
Phone: (650) 506-8127
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