[sheepdog] [PATCH 2/2] sheep: fix local_get_epoch()

[Christoph Hellwig]

On Sun, Jun 24, 2012 at 07:34:42PM +0800, Liu Yuan wrote:
> From: Liu Yuan <tailai.ly at taobao.com>
> 
> We should also add the piggybacked ctime to the length

Ooh.  I think this needs some more fixes over sheepdog.  For one
epoch_log_read should account for it directly when reading from the
file, that is we need to be able to read SD_MAX_NODES + the time_t.

Probably better is to ignore the time in a plain epoch_log_read
and require a separate call for it, that uses lseek to seek to the
end of the file.  And epoch_log_read really needs a comment about
this time piggybacking.