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SubjectRe: [patch 4/5] VFS: allow filesystems to implement atomic open+truncate
On Sep 21, 2007  14:23 +0200, Miklos Szeredi wrote:
> Add a new attribute flag ATTR_OPEN, with the meaning: "truncation was
> initiated by open() due to the O_TRUNC flag".
>
> This way filesystems wanting to implement truncation within their
> ->open() method can ignore such truncate requests.

This is actually something we've needed to do in Lustre for a while also.
We called it ATTR_FROM_OPEN, but I don't really mind ATTR_OPEN either -
the less patching we need to do the better.

Cheers, Andreas
--
Andreas Dilger
Principal Software Engineer
Cluster File Systems, Inc.

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