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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 11:41:52 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-19 11:41:52 -0700
commitcf77e988ddfc7f047ac1ddc72cadb5eee7e09293 (patch)
treed4870b7290ea50fe01ed4d56febad449f1206172 /arch/ia64/kernel
parent1d3c6ff44ad4b5f113602e153026a338f0f9b3ff (diff)
parent2a2ae2426bba944ce6dbcad35e1580df57aafcf1 (diff)
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Drop duplicated "config IOMMU_HELPER" [IA64] invoke oom-killer from page fault [IA64] use __ratelimit [IA64] Use set_cpus_allowed_ptr [IA64] Use set_cpus_allowed_ptr [IA64] arch/ia64/hp/common/sba_iommu.c: Rename dev_info to adi [IA64] removing redundant ifdef
Diffstat (limited to 'arch/ia64/kernel')
-rw-r--r--arch/ia64/kernel/cpufreq/acpi-cpufreq.c10
-rw-r--r--arch/ia64/kernel/irq_ia64.c9
-rw-r--r--arch/ia64/kernel/salinfo.c5
-rw-r--r--arch/ia64/kernel/topology.c4
-rw-r--r--arch/ia64/kernel/unaligned.c24
5 files changed, 17 insertions, 35 deletions
diff --git a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
index b0b4e6e710f2..22f61526a8e1 100644
--- a/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
+++ b/arch/ia64/kernel/cpufreq/acpi-cpufreq.c
@@ -113,7 +113,7 @@ processor_get_freq (
dprintk("processor_get_freq\n");
saved_mask = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, cpumask_of(cpu));
if (smp_processor_id() != cpu)
goto migrate_end;
@@ -121,7 +121,7 @@ processor_get_freq (
ret = processor_get_pstate(&value);
if (ret) {
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
printk(KERN_WARNING "get performance failed with error %d\n",
ret);
ret = 0;
@@ -131,7 +131,7 @@ processor_get_freq (
ret = (clock_freq*1000);
migrate_end:
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
return ret;
}
@@ -151,7 +151,7 @@ processor_set_freq (
dprintk("processor_set_freq\n");
saved_mask = current->cpus_allowed;
- set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ set_cpus_allowed_ptr(current, cpumask_of(cpu));
if (smp_processor_id() != cpu) {
retval = -EAGAIN;
goto migrate_end;
@@ -208,7 +208,7 @@ processor_set_freq (
retval = 0;
migrate_end:
- set_cpus_allowed(current, saved_mask);
+ set_cpus_allowed_ptr(current, &saved_mask);
return (retval);
}
diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c
index 640479304ac0..f14c35f9b03a 100644
--- a/arch/ia64/kernel/irq_ia64.c
+++ b/arch/ia64/kernel/irq_ia64.c
@@ -29,6 +29,7 @@
#include <linux/threads.h>
#include <linux/bitops.h>
#include <linux/irq.h>
+#include <linux/ratelimit.h>
#include <asm/delay.h>
#include <asm/intrinsics.h>
@@ -467,13 +468,9 @@ ia64_handle_irq (ia64_vector vector, struct pt_regs *regs)
sp = ia64_getreg(_IA64_REG_SP);
if ((sp - bsp) < 1024) {
- static unsigned char count;
- static long last_time;
+ static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5);
- if (time_after(jiffies, last_time + 5 * HZ))
- count = 0;
- if (++count < 5) {
- last_time = jiffies;
+ if (__ratelimit(&ratelimit)) {
printk("ia64_handle_irq: DANGER: less than "
"1KB of free stack space!!\n"
"(bsp=0x%lx, sp=%lx)\n", bsp, sp);
diff --git a/arch/ia64/kernel/salinfo.c b/arch/ia64/kernel/salinfo.c
index e6676fca4828..aa8b5fa1a8de 100644
--- a/arch/ia64/kernel/salinfo.c
+++ b/arch/ia64/kernel/salinfo.c
@@ -404,10 +404,9 @@ static void
call_on_cpu(int cpu, void (*fn)(void *), void *arg)
{
cpumask_t save_cpus_allowed = current->cpus_allowed;
- cpumask_t new_cpus_allowed = cpumask_of_cpu(cpu);
- set_cpus_allowed(current, new_cpus_allowed);
+ set_cpus_allowed_ptr(current, cpumask_of(cpu));
(*fn)(arg);
- set_cpus_allowed(current, save_cpus_allowed);
+ set_cpus_allowed_ptr(current, &save_cpus_allowed);
}
static void
diff --git a/arch/ia64/kernel/topology.c b/arch/ia64/kernel/topology.c
index 28f299de2903..0baa1bbb65fe 100644
--- a/arch/ia64/kernel/topology.c
+++ b/arch/ia64/kernel/topology.c
@@ -361,12 +361,12 @@ static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
return 0;
oldmask = current->cpus_allowed;
- retval = set_cpus_allowed(current, cpumask_of_cpu(cpu));
+ retval = set_cpus_allowed_ptr(current, cpumask_of(cpu));
if (unlikely(retval))
return retval;
retval = cpu_cache_sysfs_init(cpu);
- set_cpus_allowed(current, oldmask);
+ set_cpus_allowed_ptr(current, &oldmask);
if (unlikely(retval < 0))
return retval;
diff --git a/arch/ia64/kernel/unaligned.c b/arch/ia64/kernel/unaligned.c
index 776dd40397e2..622772b7fb6c 100644
--- a/arch/ia64/kernel/unaligned.c
+++ b/arch/ia64/kernel/unaligned.c
@@ -17,6 +17,7 @@
#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/tty.h>
+#include <linux/ratelimit.h>
#include <asm/intrinsics.h>
#include <asm/processor.h>
@@ -1283,24 +1284,9 @@ emulate_store_float (unsigned long ifa, load_store_t ld, struct pt_regs *regs)
/*
* Make sure we log the unaligned access, so that user/sysadmin can notice it and
* eventually fix the program. However, we don't want to do that for every access so we
- * pace it with jiffies. This isn't really MP-safe, but it doesn't really have to be
- * either...
+ * pace it with jiffies.
*/
-static int
-within_logging_rate_limit (void)
-{
- static unsigned long count, last_time;
-
- if (time_after(jiffies, last_time + 5 * HZ))
- count = 0;
- if (count < 5) {
- last_time = jiffies;
- count++;
- return 1;
- }
- return 0;
-
-}
+static DEFINE_RATELIMIT_STATE(logging_rate_limit, 5 * HZ, 5);
void
ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
@@ -1337,7 +1323,7 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
if (!no_unaligned_warning &&
!(current->thread.flags & IA64_THREAD_UAC_NOPRINT) &&
- within_logging_rate_limit())
+ __ratelimit(&logging_rate_limit))
{
char buf[200]; /* comm[] is at most 16 bytes... */
size_t len;
@@ -1370,7 +1356,7 @@ ia64_handle_unaligned (unsigned long ifa, struct pt_regs *regs)
}
}
} else {
- if (within_logging_rate_limit()) {
+ if (__ratelimit(&logging_rate_limit)) {
printk(KERN_WARNING "kernel unaligned access to 0x%016lx, ip=0x%016lx\n",
ifa, regs->cr_iip + ipsr->ri);
if (unaligned_dump_stack)