Florian Philipp wrote:
Am 19.11.2012 18:51, schrieb Kerin Millar:
Florian Philipp wrote:
Hi list!
I'm wondering about the usage of frontswap and cleancache. Now that all
pieces are in place in kernel-3.5, is it actually used?
I've found references to cleancache and frontswap in several source
files of the kernel (ext4, swapfile, page_io, ...).
/sys/kernel/mm/zcache is also present but seems to indicate no usage at
all. Content attached below.
It might be that you have enabled some of these options as loadable
modules: CONFIG_ZCACHE, CONFIG_CLEANCACHE and CONFIG_FRONTSWAP. If so,
build them directly into the kernel image instead.
Cheers,
--Kerin
You cannot build these as modules. Anyway, I'm recompiling right now
with debugfs and configfs. Let's see if that tells me anything.
Regards,
Florian Philipp
Ah, good to know. I know that it was possible in some older kernels -
while the feature was still in staging - but it must have since been fixed.
--Kerin
