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Tasklist

FS#33539 - [linux] Disable deprecated zcache in favor of zcache2+ramster

Attached to Project: Arch Linux
Opened by Jan Alexander Steffens (heftig) - Wednesday, 23 January 2013, 23:38 GMT
Last edited by Tobias Powalowski (tpowa) - Sunday, 27 January 2013, 11:22 GMT
Task Type Feature Request
Category Packages: Core
Status Closed
Assigned To Tobias Powalowski (tpowa)
Thomas Bächler (brain0)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

As noted in commit faca2ef:

The original zcache in staging is a "demo" version, and this is a massive
rewrite. This was intended to result in a merged zcache and ramster, but
that option has been blocked so, to continue forward progress on ramster
and future related projects, only ramster moves to the new codebase.
To differentiate between the old demo zcache and the rewrite, we refer
to the latter as zcache2, config'd as CONFIG_ZCACHE2. Zcache and zcache2
cannot be built in the same kernel, so CONFIG_ZCACHE2 implies !CONFIG_ZCACHE.

This developer still has hope that zcache and zcache2 will be merged
into one codebase. Until then, zcache2 can be considered a one-node
version of ramster.

Also: http://driverdev.linuxdriverproject.org/pipermail/devel/2012-December/034033.html

Since ZCACHE2 depends on !ZCACHE, the latter will have to be disabled.
This task depends upon

Closed by  Tobias Powalowski (tpowa)
Sunday, 27 January 2013, 11:22 GMT
Reason for closing:  Implemented
Additional comments about closing:  >3.7.4
Comment by Tobias Powalowski (tpowa) - Thursday, 24 January 2013, 07:24 GMT
Could you just add what options need to be removed and which added?
And does this also apply to 3.0.x or just 3.7.x
Comment by Jan Alexander Steffens (heftig) - Thursday, 24 January 2013, 09:36 GMT
Just 3.7.

For zcache2:
# CONFIG_ZCACHE is not set
CONFIG_ZCACHE2=y

Additionally, for ramster (not as interesting):
CONFIG_CONFIGFS_FS=y
CONFIG_RAMSTER=y

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