Re: [PATCH 1/2] freezer: add unsafe versions of freezable helpers

[Peter Zijlstra]

On Fri, May 03, 2013 at 02:04:09PM -0700, Colin Cross wrote:
> NFS calls the freezable helpers with locks held, which is unsafe
> and caused lockdep warnings when 6aa9707 "lockdep: check that no
> locks held at freeze time" was applied (reverted in dbf520a).
> Add new *_unsafe versions of the helpers that will not run the
> lockdep test when 6aa9707 is reapplied, and call them from NFS.

Am I the only one that would like a bit more information about why NFS does
this and why we need to work around it?

>From replies in this thread I surmise its got something to do with hard NFS
mounts. And I suppose I could go apply google to lkml and try and find the
previous discussion, but really this should be in the Changelog.
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