Commit-ID: 45a5c8bad827ebb9c9798becc15bce2e804d49e0
Gitweb:
http://git.kernel.org/tip/45a5c8bad827ebb9c9798becc15bce2e804d49e0
Author: Dhaval Giani <dhaval DeleteThis @linux.vnet.ibm.com>
AuthorDate: Wed, 4 Nov 2009 03:15:44 +0530
Committer: Ingo Molnar <mingo DeleteThis @elte.hu>
CommitDate: Wed, 4 Nov 2009 12:40:26 +0100
sched: Add USER_SCHED to feature removal list
Peter Zijlstra suggested that we remove USER_SCHED at:
http://lkml.org/lkml/2009/3/21/67
Removing USER_SCHED removes a lot of code from the scheduler
and simplifies the code.
We already have the ability to do user based classification
which is tightened using PAM in userspace.
Schedule USER_SCHED for removal in 2.6.34
Signed-off-by: Dhaval Giani <dhaval DeleteThis @linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <a.p.zijlstra DeleteThis @chello.nl>
Cc: Balbir Singh <balbir DeleteThis @in.ibm.com>
Cc: Bharata B Rao <bharata DeleteThis @linux.vnet.ibm.com>
Cc: Serge E. Hallyn <serue DeleteThis @us.ibm.com>
Cc: Srivatsa Vaddagiri <vatsa DeleteThis @linux.vnet.ibm.com>
LKML-Reference: <20091103214544.GI5495 DeleteThis @linux.vnet.ibm.com>
Signed-off-by: Ingo Molnar <mingo DeleteThis @elte.hu>
---
Documentation/feature-removal-schedule.txt | 15 +++++++++++++++
1 files changed, 15 insertions(+), 0 deletions(-)
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index bc693ff..f613df8 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -6,6 +6,21 @@ be removed from this file.
---------------------------
+What: USER_SCHED
+When: 2.6.34
+
+Why: USER_SCHED was implemented as a proof of concept for group scheduling.
+ The effect of USER_SCHED can already be achieved from userspace with
+ the help of libcgroup. The removal of USER_SCHED will also simplify
+ the scheduler code with the removal of one major ifdef. There are also
+ issues USER_SCHED has with USER_NS. A decision was taken not to fix
+ those and instead remove USER_SCHED. Also new group scheduling
+ features will not be implemented for USER_SCHED.
+
+Who: Dhaval Giani <dhaval DeleteThis @linux.vnet.ibm.com>
+
+---------------------------
+
What: PRISM54
When: 2.6.34
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