Messages in this thread Patch in this message | | | Date | Wed, 4 Nov 2009 15:24:34 GMT | From | tip-bot for Dhaval Giani <> | Subject | [tip:sched/core] sched: Add USER_SCHED to feature removal list |
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Commit-ID: 45a5c8bad827ebb9c9798becc15bce2e804d49e0 Gitweb: http://git.kernel.org/tip/45a5c8bad827ebb9c9798becc15bce2e804d49e0 Author: Dhaval Giani <dhaval@linux.vnet.ibm.com> AuthorDate: Wed, 4 Nov 2009 03:15:44 +0530 Committer: Ingo Molnar <mingo@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@linux.vnet.ibm.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Bharata B Rao <bharata@linux.vnet.ibm.com> Cc: Serge E. Hallyn <serue@us.ibm.com> Cc: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com> LKML-Reference: <20091103214544.GI5495@linux.vnet.ibm.com> Signed-off-by: Ingo Molnar <mingo@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@linux.vnet.ibm.com> + +--------------------------- + What: PRISM54 When: 2.6.34
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