Linux Storage and Filesystem Workshop, day 2
Posted Apr 11, 2009 0:27 UTC (Sat) by neilbrown
Parent article: Linux Storage and Filesystem Workshop, day 2
The creation of this system call looks like an opportunity to leave some old mistakes behind. So, for example, it will not support seeking within a directory.
There is some irony here. The name "readdirplus" comes from NFS - NFSv3 introduced a READDIRPLUS protocol request for exactly the same reason.
And to support NFS, you absolutely need to be able to seek within a directory. It is conceivable that some .x version of NFSv4 might remove this requirement. But until we agree to stop supporting NFSv3, we need to be able to seek within a directory.
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