Re: Lazy atime mount option?

Stephen C. Tweedie (sct@redhat.com)
Thu, 24 Sep 1998 15:50:33 +0100


Hi,

On Thu, 17 Sep 1998 13:35:51 -0500, The Doctor What <docwhat@gerf.org>
said:

> I have a laptop, and to speed it up and prevent the update daemon from
> writing the HD, I have used the "noatime" mount option. However, what I'd
> really like is a "lazyatime" write feature:

Already planned for 2.3. :)

> Can someone tell me if this is possible? or would this require major
> poking at the cache/buffer code?

No, it is a relatively trivial extension to the inode cache, requiring
extending the dirty flag to a three-state value (clean, dirty and
deferred-dirty). Not hard to do, but too late to add to 2.2.

--Stephen

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