From: Anton Blanchard <anton@samba•org>
To: benh@kernel•crashing.org, rusty@rustcorp•com.au
Cc: linuxppc-dev@ozlabs•org
Subject: [patch 09/15] powerpc: cpumask: Convert /proc/cpuinfo to new cpumask API
Date: Tue, 27 Apr 2010 11:32:40 +1000 [thread overview]
Message-ID: <20100427013432.378682127@samba.org> (raw)
In-Reply-To: 20100427013231.510168034@samba.org
Use new cpumask API in /proc/cpuinfo code.
Signed-off-by: Anton Blanchard <anton@samba•org>
---
Index: linux-cpumask/arch/powerpc/kernel/setup-common.c
===================================================================
--- linux-cpumask.orig/arch/powerpc/kernel/setup-common.c 2010-04-22 13:03:19.866696740 +1000
+++ linux-cpumask/arch/powerpc/kernel/setup-common.c 2010-04-22 13:03:21.075446071 +1000
@@ -200,11 +200,6 @@ static int show_cpuinfo(struct seq_file
unsigned short maj;
unsigned short min;
- if (cpu_id == NR_CPUS) {
- show_cpuinfo_summary(m);
- return 0;
- }
-
/* We only show online cpus: disable preempt (overzealous, I
* knew) to prevent cpu going down. */
preempt_disable();
@@ -312,19 +307,28 @@ static int show_cpuinfo(struct seq_file
#endif
preempt_enable();
+
+ /* If this is the last cpu, print the summary */
+ if (cpumask_next(cpu_id, cpu_online_mask) >= nr_cpu_ids)
+ show_cpuinfo_summary(m);
+
return 0;
}
static void *c_start(struct seq_file *m, loff_t *pos)
{
- unsigned long i = *pos;
-
- return i <= NR_CPUS ? (void *)(i + 1) : NULL;
+ if (*pos == 0) /* just in case, cpu 0 is not the first */
+ *pos = cpumask_first(cpu_online_mask);
+ else
+ *pos = cpumask_next(*pos - 1, cpu_online_mask);
+ if ((*pos) < nr_cpu_ids)
+ return (void *)(*pos + 1);
+ return NULL;
}
static void *c_next(struct seq_file *m, void *v, loff_t *pos)
{
- ++*pos;
+ (*pos)++;
return c_start(m, pos);
}
next prev parent reply other threads:[~2010-04-27 1:32 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-27 1:32 [patch 00/15] PowerPC cpumask patches Anton Blanchard
2010-04-27 1:32 ` [patch 01/15] powerpc: cpumask: Use cpu_online_mask Anton Blanchard
2010-04-27 1:32 ` [patch 02/15] powerpc: cpumask: Convert rtasd to new cpumask API Anton Blanchard
2010-04-27 1:32 ` [patch 03/15] powerpc: cpumask: Convert smp_cpus_done " Anton Blanchard
2010-04-28 2:09 ` Stephen Rothwell
2010-04-27 1:32 ` [patch 04/15] powerpc: cpumask: Convert fixup_irqs " Anton Blanchard
2010-04-27 1:32 ` [patch 05/15] powerpc: cpumask: Convert iseries SMP code " Anton Blanchard
2010-04-27 1:32 ` [patch 06/15] powerpc: cpumask: Convert pseries " Anton Blanchard
2010-04-27 1:32 ` [patch 07/15] powerpc: cpumask: Convert xics driver " Anton Blanchard
2010-04-27 1:32 ` [patch 08/15] powerpc: cpumask: Refactor /proc/cpuinfo code Anton Blanchard
2010-04-27 1:32 ` Anton Blanchard [this message]
2010-04-27 1:32 ` [patch 10/15] powerpc: cpumask: Dynamically allocate cpu_sibling_map and cpu_core_map cpumasks Anton Blanchard
2010-04-27 1:32 ` [patch 11/15] powerpc: cpumask: Convert hotplug-cpu code to new cpumask API Anton Blanchard
2010-04-27 1:32 ` [patch 12/15] powerpc: cpumask: Convert NUMA " Anton Blanchard
2010-04-27 1:32 ` [patch 13/15] powerpc: cpumask: Update some comments Anton Blanchard
2010-04-27 1:32 ` [patch 14/15] powerpc: cpumask: Convert mpic driver to new cpumask API Anton Blanchard
2010-04-27 1:32 ` [patch 15/15] powerpc: cpumask: Add DEBUG_PER_CPU_MAPS option Anton Blanchard
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