RE: [PATCH v6 1/4] cramfs: direct memory access support

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On Thu, 12 Oct 2017, Chris Brandt wrote:

> On Thursday, October 12, 2017, Nicolas Pitre wrote:
> > Small embedded systems typically execute the kernel code in place (XIP)
> > directly from flash to save on precious RAM usage. This adds the ability
> > to consume filesystem data directly from flash to the cramfs filesystem
> > as well. Cramfs is particularly well suited to this feature as it is
> > very simple and its RAM usage is already very low, and with this feature
> > it is possible to use it with no block device support and even lower RAM
> > usage.
> > 
> 
> Works!
> 
> I first applied the MTD patch series from here:
> 
> http://patchwork.ozlabs.org/project/linux-mtd/list/?series=7504
> 
> Then this v6 patch series on top of it.
> 
> I created a mtd-rom/direct-mapped partition and was able to both mount after boot, and also boot as the rootfs.
> 
> So far, so good.
> 
> Thank you!
> 
> Tested-by: Chris Brandt <chris.brandt@xxxxxxxxxxx>

Great! Thanks for testing.

Hopefully this series has finally addressed all objections that were 
raised.


Nicolas
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