[Dev] Gumd and security-manager integration

Jussi Laako jussi.laako at linux.intel.com
Fri Oct 17 09:28:18 GMT 2014


On 17.10.2014 10:22, Dominig ar Foll (Intel OTC) wrote:
> I am afraid that thinking of enforcing the use of atomic file system is
> not viable in an embedded world.

Why? That's where it's most needed. Why do you think some LFS wouldn't 
be suitable? In many cases you also get checksumming support to detect 
bitrot. Could be especially useful in IVI systems and other uses where 
environment is harsh and typical device lifetime is long.

(ZFS is now also available on Linux, but AFAIK is not yet part of the 
kernel)

This is especially essential ingredient if you want to have fast 
recovery from unexpected power loss which is particularly important area 
for embedded systems. With LFS it is immediate, unlike filesystems where 
journal replay needs to take place.



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