linux-kernel - Re: BFS v0.313 CPU scheduler for 2.6.32

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Date:	Wed, 30 Dec 2009 20:55:55 +0100
From:	Heinz Diehl <htd@...cy-poultry.org>
To:	linux-kernel@...r.kernel.org
Subject: Re: BFS v0.313 CPU scheduler for 2.6.32

On 30.12.2009, Miguel Botón wrote: 

> If you want to try BFS on a 2.6.33 kernel, you can try this 'unofficial' port:
> http://git.zen-kernel.org/?p=kernel/zen.git;a=shortlog;h=refs/heads/sched-bfs

> I'm currently using it with no issues so far.

Your patch applies cleanly to 2.6.33-rc2, but compilation fails:

[....]
In file included from kernel/sched.c:2:
kernel/sched_bfs.c: In function '__sched_setscheduler':
kernel/sched_bfs.c:3484: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type
kernel/sched_bfs.c:3493: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type
kernel/sched_bfs.c:3509: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type
kernel/sched_bfs.c: In function 'sys_sched_yield':
kernel/sched_bfs.c:3846: warning: passing argument 1 of '_raw_spin_unlock' from incompatible pointer type
kernel/sched_bfs.c: At top level:
kernel/sched_bfs.c:6018: error: conflicting types for 'partition_sched_domains'
include/linux/sched.h:1025: error: previous declaration of 'partition_sched_domains' was here
kernel/sched_bfs.c: In function 'sched_init':
kernel/sched_bfs.c:6425: warning: passing argument 2 of 'plist_head_init' from incompatible pointer type
kernel/sched_bfs.c: In function 'normalize_rt_tasks':
kernel/sched_bfs.c:6499: warning: passing argument 1 of 'spinlock_check' from incompatible pointer type
kernel/sched_bfs.c:6513: warning: passing argument 1 of 'spin_unlock_irqrestore' from incompatible pointer type
make[1]: *** [kernel/sched.o] Error 1
make[1]: *** Waiting for unfinished jobs....
  CC      arch/x86/kernel/alternative.o
  CC      fs/open.o
[....]

[....]
 CC      arch/x86/kernel/init_task.o
  LDS     arch/x86/kernel/vmlinux.lds
  CC [M]  arch/x86/kernel/msr.o
  CC [M]  arch/x86/kernel/cpuid.o
  CC [M]  arch/x86/kernel/microcode_core.o
  CC [M]  arch/x86/kernel/microcode_amd.o
arch/x86/kernel/init_task.c:31: warning: missing braces around initializer
arch/x86/kernel/init_task.c:31: warning: (near initialization for 'init_task.pi_lock')
arch/x86/kernel/init_task.c:31: error: incompatible types in initialization
arch/x86/kernel/init_task.c:31: error: initializer element is not constant
arch/x86/kernel/init_task.c:31: error: (near initialization for 'init_task.dirties.lock')
arch/x86/kernel/init_task.c:31: error: initializer element is not constant
arch/x86/kernel/init_task.c:31: error: (near initialization for 'init_task.perf_event_mutex.wait_lock')
make[2]: *** [arch/x86/kernel/init_task.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [arch/x86/kernel] Error 2
make: *** [arch/x86] Error 2
liesel:/usr/src/linux-2.6.33-rc2 # 

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