RE: [PATCH v6 1/4] cramfs: direct memory access support
Nicolas Pitre <[email protected]>
| Newsgroups | org.kernel.vger.linux-embedded,org.kernel.vger.linux-fsdevel,org.kernel.vger.linux-kernel,org.kvack.linux-mm |
|---|---|
| Message-ID | <[email protected]> |
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 <[email protected]> Great! Thanks for testing. Hopefully this series has finally addressed all objections that were raised. Nicolas -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to [email protected]. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"[email protected]"> [email protected] </a>