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SubjectRe: [PATCH 2.6.19 5/5] fs: freeze_bdev with semaphore not mutex
On Thu, Nov 09, 2006 at 11:21:46PM +0100, Rafael J. Wysocki wrote:
> I think we can add a flag to __create_workqueue() that will indicate if
> this one is to be running with PF_NOFREEZE and a corresponding macro like
> create_freezable_workqueue() to be used wherever we want the worker thread
> to freeze (in which case it should be calling try_to_freeze() somewhere).
> Then, we can teach filesystems to use this macro instead of
> create_workqueue().

At what point does the workqueue get frozen? i.e. how does this
guarantee an unfrozen filesystem will end up in a consistent


Dave Chinner
Principal Engineer
SGI Australian Software Group
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