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author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-21 15:40:24 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-04-21 15:40:24 -0700 |
commit | ec965350bb98bd291eb34f6ecddfdcfc36da1e6e (patch) | |
tree | 983bcaf33ed00b48a86f7f8790cc460cf15dd252 /drivers/base/topology.c | |
parent | 5f033bb9bc5cb3bb37a79e3ef131f50ecdcb72b0 (diff) | |
parent | 486fdae21458bd9f4e125099bb3c38a4064e450e (diff) |
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched-devel: (62 commits)
sched: build fix
sched: better rt-group documentation
sched: features fix
sched: /debug/sched_features
sched: add SCHED_FEAT_DEADLINE
sched: debug: show a weight tree
sched: fair: weight calculations
sched: fair-group: de-couple load-balancing from the rb-trees
sched: fair-group scheduling vs latency
sched: rt-group: optimize dequeue_rt_stack
sched: debug: add some debug code to handle the full hierarchy
sched: fair-group: SMP-nice for group scheduling
sched, cpuset: customize sched domains, core
sched, cpuset: customize sched domains, docs
sched: prepatory code movement
sched: rt: multi level group constraints
sched: task_group hierarchy
sched: fix the task_group hierarchy for UID grouping
sched: allow the group scheduler to have multiple levels
sched: mix tasks and groups
...
Diffstat (limited to 'drivers/base/topology.c')
-rw-r--r-- | drivers/base/topology.c | 41 |
1 files changed, 34 insertions, 7 deletions
diff --git a/drivers/base/topology.c b/drivers/base/topology.c index e1d3ad4db2f..fdf4044d2e7 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -40,15 +40,38 @@ static ssize_t show_##name(struct sys_device *dev, char *buf) \ return sprintf(buf, "%d\n", topology_##name(cpu)); \ } -#define define_siblings_show_func(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf) +{ + ptrdiff_t len = PTR_ALIGN(buf + PAGE_SIZE - 1, PAGE_SIZE) - buf; + int n = 0; + + if (len > 1) { + n = type? + cpulist_scnprintf(buf, len-2, *mask): + cpumask_scnprintf(buf, len-2, *mask); + buf[n++] = '\n'; + buf[n] = '\0'; + } + return n; +} + +#define define_siblings_show_map(name) \ +static inline ssize_t show_##name(struct sys_device *dev, char *buf) \ { \ - ssize_t len = -1; \ unsigned int cpu = dev->id; \ - len = cpumask_scnprintf(buf, NR_CPUS+1, topology_##name(cpu)); \ - return (len + sprintf(buf + len, "\n")); \ + return show_cpumap(0, &(topology_##name(cpu)), buf); \ } +#define define_siblings_show_list(name) \ +static inline ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +{ \ + unsigned int cpu = dev->id; \ + return show_cpumap(1, &(topology_##name(cpu)), buf); \ +} + +#define define_siblings_show_func(name) \ + define_siblings_show_map(name); define_siblings_show_list(name) + #ifdef topology_physical_package_id define_id_show_func(physical_package_id); define_one_ro(physical_package_id); @@ -68,7 +91,9 @@ define_one_ro(core_id); #ifdef topology_thread_siblings define_siblings_show_func(thread_siblings); define_one_ro(thread_siblings); -#define ref_thread_siblings_attr &attr_thread_siblings.attr, +define_one_ro(thread_siblings_list); +#define ref_thread_siblings_attr \ + &attr_thread_siblings.attr, &attr_thread_siblings_list.attr, #else #define ref_thread_siblings_attr #endif @@ -76,7 +101,9 @@ define_one_ro(thread_siblings); #ifdef topology_core_siblings define_siblings_show_func(core_siblings); define_one_ro(core_siblings); -#define ref_core_siblings_attr &attr_core_siblings.attr, +define_one_ro(core_siblings_list); +#define ref_core_siblings_attr \ + &attr_core_siblings.attr, &attr_core_siblings_list.attr, #else #define ref_core_siblings_attr #endif |