Messages in this thread | | | Date | Sun, 10 Jun 2012 13:20:55 +0200 | From | Christian Stroetmann <> | Subject | Re: [PATCH 00/17] pramfs: persistent and protected RAM filesystem |
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On Sun, June 10, 2012 Marco Stornelli wrote: > Hi all, > > after the merge of pramfs in the LTSI kernel and after the "hot topic" > NVM Mapping API, here a new submission of pramfs code. Even if the > code won't be in mainline the review is really useful to me, so any > comment is welcome. Hello
I think we have here two cases: 1. "A block of non-volatile RAM separate for normal system memory", [documentation Pramfs] and 2. The whole RAM is non-volatile and so the whole situation is changed, and an NVM Mapping API is needed and "hotly" discussed.
For 1. your solution is a very good concept that is getting around issues solely related with specific optimizations for disc-based file systems, like the 2 problems described in the documentation of Pramfs, but for 2. there is no need for a file system anymore, as we use it today while working with a computer system, because data needs not to be written to a file system at all, and so the file system will become something like a backup system in the most common use cases of a computing device, if I should describe it a little bit too provocative. In this case your approach taken to handle the 2 problems mentioned in the documentation of Pramfs would have to be driven further by focusing more on the management of the RAM, the power, and the long-term data storage (backup) for harmonizing Pramfs with them. A further point is to make Pramfs bootable, if this not already possible somehow. > > > The patch series is based on 3.5-rc2. > > Pramfs documentation: > > http://pramfs.sourceforge.net > > Git repo: > > git://pramfs.git.sourceforge.net/gitroot/pramfs/pramfs > > Marco
Have fun Christian Stroetmann
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