diff options
| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2011-04-07 14:10:00 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-04-11 14:09:26 +0200 |
| commit | eb7a74e6cd936c00749e2921b9e058631d986648 (patch) | |
| tree | 3efb7b3d2560a4121226900edb433c7f2c50684c /kernel/sched.c | |
| parent | d3081f52f29da1ba6c27685519a9222b39eac763 (diff) | |
sched: Stuff the sched_domain creation in a data-structure
In order to make the topology contruction fully dynamic, remove the
still hard-coded list of possible domains and stick them in a
data-structure.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Nick Piggin <npiggin@kernel.dk>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20110407122942.770335383@chello.nl
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched.c')
| -rw-r--r-- | kernel/sched.c | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/kernel/sched.c b/kernel/sched.c index 3ae1e023f3f..f0e1821dcb9 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -6843,6 +6843,16 @@ enum s_alloc { sa_none, }; +typedef struct sched_domain *(*sched_domain_build_f)(struct s_data *d, + const struct cpumask *cpu_map, struct sched_domain_attr *attr, + struct sched_domain *parent, int cpu); + +typedef const struct cpumask *(*sched_domain_mask_f)(int cpu); + +struct sched_domain_topology_level { + sched_domain_build_f build; +}; + /* * Assumes the sched_domain tree is fully constructed */ @@ -7185,6 +7195,18 @@ static struct sched_domain *__build_smt_sched_domain(struct s_data *d, return sd; } +static struct sched_domain_topology_level default_topology[] = { + { __build_allnodes_sched_domain, }, + { __build_node_sched_domain, }, + { __build_cpu_sched_domain, }, + { __build_book_sched_domain, }, + { __build_mc_sched_domain, }, + { __build_smt_sched_domain, }, + { NULL, }, +}; + +static struct sched_domain_topology_level *sched_domain_topology = default_topology; + /* * Build sched domains for a given set of cpus and attach the sched domains * to the individual cpus @@ -7203,13 +7225,11 @@ static int build_sched_domains(const struct cpumask *cpu_map, /* Set up domains for cpus specified by the cpu_map. */ for_each_cpu(i, cpu_map) { + struct sched_domain_topology_level *tl; + sd = NULL; - sd = __build_allnodes_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_node_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_cpu_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_book_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_mc_sched_domain(&d, cpu_map, attr, sd, i); - sd = __build_smt_sched_domain(&d, cpu_map, attr, sd, i); + for (tl = sched_domain_topology; tl->build; tl++) + sd = tl->build(&d, cpu_map, attr, sd, i); *per_cpu_ptr(d.sd, i) = sd; } |