[linux-pm] [PATCH -mm] kexec jump -v9
stern at rowland.harvard.edu
Wed Mar 12 11:01:49 EDT 2008
On Wed, 12 Mar 2008, Huang, Ying wrote:
> I think "kexec based hibernation" is the only currently available
> possible method to write out image without freezer (after driver works
> are done). If other process is running, how to prevent them from writing
> to disk without freezing them in current implementation?
This is a very good question.
It's a matter of managing the block layer's request queues. Somehow
the existing I/O requests must remain blocked while the requests needed
for writing the image must be allowed to proceed.
I don't know what would be needed to make this work, but it ought to be
More information about the kexec