Using UBIFS as an FTL

[Richard Weinberger]

On Sat, Jul 26, 2014 at 1:41 AM, hujianyang <hujianyang at huawei.com> wrote:
> On 2014/7/26 2:21, Daniel Ehrenberg wrote:
>> - loopback-mounting a file on ubifs--From skimming the code, it looks
>> to me like ubifs uses some nice datastructures to handle writes within
>> a file without doing read-modify-writes all the time as ubiblock
>> forces. ubifs authors/maintainers, do you see any downside to using
>> ubifs this way?
>
> This way seems most easily to realize. Synchronize the loop file and
> maybe you will never worry about power cut.
>
> How about using UBI-layer and writing a new block driver to handle
> bio? This driver should care about which leb on the flash has data
> and other thing else(I don't have a clear idea now). The 'leb_change'
> ops in UBI-layer maybe helpful for in-place update and atomic write.
> But This way is harder than using a loop file.

Instead of adding another UBI block layer, please integrate such functionality
in Ezequiel's UBI block.

-- 
Thanks,
//richard