Re: [patch/backport] CFS scheduler, -v24, for v2.6.24-rc3, v2.6.23.8,v2.6.22.13, v2.6.21.7

[David <david@livux.com>]

El Lunes, 19 de Noviembre de 2007, Ingo Molnar escribió:
> * David <david@livux.com> wrote:
> > Hi Ingo,
> >
> > Thnx a lot for theses backports...
> >
> > Ran into this while compiling a 2.6.23.8 with CFS v24
> >
> > Compiling with CONFIG_FAIR_GROUP_SCHED disabled :
> >
> > kernel/sysctl.c:305: error: 'sysctl_sched_min_bal_int_shares' undeclared
> > here (not in a function) kernel/sysctl.c:313: error:
> > 'sysctl_sched_max_bal_int_shares' undeclared here (not in a function)
> >
> > I made that patch to make it compile.
>
> thanks - i've applied your fix and have re-uploaded under the same
> filenames - so if anyone hits this problem it can be fixed by
> re-downloading the same patch again. Find below the current set of -v24
> build fixlets.
>
> 	Ingo
>
> --- linux.orig/kernel/sysctl.c
> +++ linux/kernel/sysctl.c
> @@ -309,6 +309,7 @@ static struct ctl_table kern_table[] = {
>  		.mode		= 644,
>  		.proc_handler	= &proc_dointvec,
>  	},
> +#ifdef CONFIG_FAIR_GROUP_SCHED
>  	{
>  		.ctl_name	= CTL_UNNUMBERED,
>  		.procname	= "sched_min_bal_int_shares",
> @@ -326,6 +327,7 @@ static struct ctl_table kern_table[] = {
>  		.proc_handler	= &proc_dointvec,
>  	},
>  #endif
> +#endif
>  	{
>  		.ctl_name	= CTL_UNNUMBERED,
>  		.procname	= "sched_compat_yield",
> --- linux.orig/include/linux/sched.h
> +++ linux/include/linux/sched.h
> @@ -10,7 +10,7 @@
>  #define COMPAT_REGISTER_SYSCTL
>
>  /* backporting helper macro: */
> -#define cpu_sibling_map(cpu) per_cpu(cpu_sibling_map, cpu)
> +#define cpu_sibling_map(cpu) cpu_sibling_map[cpu]
>
>  /*
>   * cloning flags:

I have removed all other patches, and applied only cfs v24 above 2.6.23.8, and 
the compiler ran into (with CONFIG_FAIR_GROUP_SCHED enabled):

 CC      kernel/sched.o
kernel/sched.c: In function 'rebalance_shares':
kernel/sched.c:7021: error: dereferencing pointer to incomplete type
kernel/sched.c: In function 'load_balance_monitor':
kernel/sched.c:7107: error: 'ndoms_cur' undeclared (first use in this 
function)
kernel/sched.c:7107: error: (Each undeclared identifier is reported only once
kernel/sched.c:7107: error: for each function it appears in.)
kernel/sched.c:7108: error: 'doms_cur' undeclared (first use in this function)
kernel/sched.c:7114: error: 'struct rq' has no member named 'sd'
kernel/sched.c:7114: warning: type defaults to 'int' in declaration 
of '_________p1'
kernel/sched.c:7114: error: 'struct rq' has no member named 'sd'
kernel/sched.c:7114: warning: assignment makes pointer from integer without a 
cast
kernel/sched.c:7114: error: dereferencing pointer to incomplete type
kernel/sched.c:7115: error: dereferencing pointer to incomplete type
kernel/sched.c:7115: error: 'SD_LOAD_BALANCE' undeclared (first use in this 
function)
kernel/sched.c:7108: warning: unused variable 'cpumap'
make[1]: *** [kernel/sched.o] Error 1

I can send my config if needed

-- 
David Rodríguez García
Director Técnico
LiVux I+D S.L.