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-rw-r--r--arch/sparc64/kernel/cpu.c4
-rw-r--r--arch/sparc64/kernel/ioctl32.c6
-rw-r--r--arch/sparc64/kernel/process.c24
-rw-r--r--arch/sparc64/kernel/sbus.c2
-rw-r--r--arch/sparc64/kernel/smp.c16
-rw-r--r--arch/sparc64/mm/fault.c4
6 files changed, 27 insertions, 29 deletions
diff --git a/arch/sparc64/kernel/cpu.c b/arch/sparc64/kernel/cpu.c
index 77ef5df4e5a..00eed88ef2e 100644
--- a/arch/sparc64/kernel/cpu.c
+++ b/arch/sparc64/kernel/cpu.c
@@ -43,7 +43,7 @@ struct cpu_fp_info linux_sparc_fpu[] = {
{ 0x3e, 0x22, 0, "UltraSparc IIIi+ integrated FPU"},
};
-#define NSPARCFPU (sizeof(linux_sparc_fpu)/sizeof(struct cpu_fp_info))
+#define NSPARCFPU ARRAY_SIZE(linux_sparc_fpu)
struct cpu_iu_info linux_sparc_chips[] = {
{ 0x17, 0x10, "TI UltraSparc I (SpitFire)"},
@@ -59,7 +59,7 @@ struct cpu_iu_info linux_sparc_chips[] = {
{ 0x3e, 0x22, "TI UltraSparc IIIi+ (Serrano)"},
};
-#define NSPARCCHIPS (sizeof(linux_sparc_chips)/sizeof(struct cpu_iu_info))
+#define NSPARCCHIPS ARRAY_SIZE(linux_sparc_chips)
char *sparc_cpu_type = "cpu-oops";
char *sparc_fpu_type = "fpu-oops";
diff --git a/arch/sparc64/kernel/ioctl32.c b/arch/sparc64/kernel/ioctl32.c
index 92e26304de9..e62214354bb 100644
--- a/arch/sparc64/kernel/ioctl32.c
+++ b/arch/sparc64/kernel/ioctl32.c
@@ -92,10 +92,8 @@ static int fbiogscursor(unsigned int fd, unsigned int cmd, unsigned long arg)
return sys_ioctl (fd, FBIOSCURSOR, (unsigned long)p);
}
-typedef int (* ioctl32_handler_t)(unsigned int, unsigned int, unsigned long, struct file *);
-
#define COMPATIBLE_IOCTL(cmd) HANDLE_IOCTL((cmd),sys_ioctl)
-#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl32_handler_t)(handler), NULL },
+#define HANDLE_IOCTL(cmd,handler) { (cmd), (ioctl_trans_handler_t)(handler), NULL },
#define IOCTL_TABLE_START \
struct ioctl_trans ioctl_start[] = {
#define IOCTL_TABLE_END \
@@ -116,8 +114,6 @@ COMPATIBLE_IOCTL(FBIOGCURPOS)
COMPATIBLE_IOCTL(FBIOGCURMAX)
/* Little k */
/* Little v, the video4linux ioctls */
-COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
-COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
/* And these ioctls need translation */
/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
HANDLE_IOCTL(FBIOPUTCMAP32, fbiogetputcmap)
diff --git a/arch/sparc64/kernel/process.c b/arch/sparc64/kernel/process.c
index 7d10b039709..02f9dec1d45 100644
--- a/arch/sparc64/kernel/process.c
+++ b/arch/sparc64/kernel/process.c
@@ -74,7 +74,9 @@ void cpu_idle(void)
while (!need_resched())
barrier();
+ preempt_enable_no_resched();
schedule();
+ preempt_disable();
check_pgt_cache();
}
}
@@ -83,21 +85,31 @@ void cpu_idle(void)
/*
* the idle loop on a UltraMultiPenguin...
+ *
+ * TIF_POLLING_NRFLAG is set because we do not sleep the cpu
+ * inside of the idler task, so an interrupt is not needed
+ * to get a clean fast response.
+ *
+ * XXX Reverify this assumption... -DaveM
+ *
+ * Addendum: We do want it to do something for the signal
+ * delivery case, we detect that by just seeing
+ * if we are trying to send this to an idler or not.
*/
-#define idle_me_harder() (cpu_data(smp_processor_id()).idle_volume += 1)
-#define unidle_me() (cpu_data(smp_processor_id()).idle_volume = 0)
void cpu_idle(void)
{
+ cpuinfo_sparc *cpuinfo = &local_cpu_data();
set_thread_flag(TIF_POLLING_NRFLAG);
+
while(1) {
if (need_resched()) {
- unidle_me();
- clear_thread_flag(TIF_POLLING_NRFLAG);
+ cpuinfo->idle_volume = 0;
+ preempt_enable_no_resched();
schedule();
- set_thread_flag(TIF_POLLING_NRFLAG);
+ preempt_disable();
check_pgt_cache();
}
- idle_me_harder();
+ cpuinfo->idle_volume++;
/* The store ordering is so that IRQ handlers on
* other cpus see our increasing idleness for the buddy
diff --git a/arch/sparc64/kernel/sbus.c b/arch/sparc64/kernel/sbus.c
index e09ddf92765..96b82505566 100644
--- a/arch/sparc64/kernel/sbus.c
+++ b/arch/sparc64/kernel/sbus.c
@@ -790,7 +790,7 @@ static unsigned long sysio_irq_offsets[] = {
#undef bogon
-#define NUM_SYSIO_OFFSETS (sizeof(sysio_irq_offsets) / sizeof(sysio_irq_offsets[0]))
+#define NUM_SYSIO_OFFSETS ARRAY_SIZE(sysio_irq_offsets)
/* Convert Interrupt Mapping register pointer to associated
* Interrupt Clear register pointer, SYSIO specific version.
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 5d90ee9aebf..797a65493fb 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -168,6 +168,9 @@ void __init smp_callin(void)
rmb();
cpu_set(cpuid, cpu_online_map);
+
+ /* idle thread is expected to have preempt disabled */
+ preempt_disable();
}
void cpu_panic(void)
@@ -1149,20 +1152,9 @@ void __init smp_cpus_done(unsigned int max_cpus)
(bogosum/(5000/HZ))%100);
}
-/* This needn't do anything as we do not sleep the cpu
- * inside of the idler task, so an interrupt is not needed
- * to get a clean fast response.
- *
- * XXX Reverify this assumption... -DaveM
- *
- * Addendum: We do want it to do something for the signal
- * delivery case, we detect that by just seeing
- * if we are trying to send this to an idler or not.
- */
void smp_send_reschedule(int cpu)
{
- if (cpu_data(cpu).idle_volume == 0)
- smp_receive_signal(cpu);
+ smp_receive_signal(cpu);
}
/* This is a nop because we capture all other cpus
diff --git a/arch/sparc64/mm/fault.c b/arch/sparc64/mm/fault.c
index 31fbc67719a..6f0539aa44d 100644
--- a/arch/sparc64/mm/fault.c
+++ b/arch/sparc64/mm/fault.c
@@ -30,8 +30,6 @@
#include <asm/sections.h>
#include <asm/kdebug.h>
-#define ELEMENTS(arr) (sizeof (arr)/sizeof (arr[0]))
-
/*
* To debug kernel to catch accesses to certain virtual/physical addresses.
* Mode = 0 selects physical watchpoints, mode = 1 selects virtual watchpoints.
@@ -109,7 +107,7 @@ static void bad_kernel_pc(struct pt_regs *regs)
* this. Additionally, to prevent kswapd from ripping ptes from
* under us, raise interrupts around the time that we look at the
* pte, kswapd will have to wait to get his smp ipi response from
- * us. This saves us having to get page_table_lock.
+ * us. vmtruncate likewise. This saves us having to get pte lock.
*/
static unsigned int get_user_insn(unsigned long tpc)
{