[dm-devel] Re: [PATCH 2.6.19 5/5] fs: freeze_bdev with semaphore not mutex

David Chinner dgc at sgi.com
Fri Nov 10 00:54:36 UTC 2006


On Thu, Nov 09, 2006 at 10:17:22PM +0100, Pavel Machek wrote:
> Why not simply &~ PF_NOFREEZE on that particular process? Filesystems
> are free to use threads/work queues/whatever, but refrigerator should
> mean "no writes to filesystem" for them...

Freezing the filesytem is the way to tell the filesystem "no more
writes to the filesytem".

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group




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