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| author |   Dhaval Giani <dhaval@linux.vnet.ibm.com> | 2009-11-04 03:15:44 +0530 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2009-11-04 12:40:26 +0100 |
| commit | 45a5c8bad827ebb9c9798becc15bce2e804d49e0 (patch) | |
| tree | b6c2a36c0ac58d3dfd23da921d707afd3b55ef80 /Documentation/feature-removal-schedule.txt | |
| parent | sched: Remove unused cpu_nr_migrations() (diff) | |
| download | linux-dev-45a5c8bad827ebb9c9798becc15bce2e804d49e0.tar.xz linux-dev-45a5c8bad827ebb9c9798becc15bce2e804d49e0.zip | |
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>
Diffstat (limited to 'Documentation/feature-removal-schedule.txt')
| -rw-r--r-- | 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 bc693fffabe0..f613df8ec7bf 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 |