Messages in this thread | | | Date | Mon, 6 May 2013 10:50:25 +0200 | From | Peter Zijlstra <> | Subject | Re: [PATCH 1/2] freezer: add unsafe versions of freezable helpers |
| |
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.
| |