提交 adb3b1f3 编写于 作者: L Linus Torvalds

Merge tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6

Pull PARISC misc updates from James Bottomley:
 "This is a couple of minor updates (fixing lws futex locking and
  removing some obsolete cpu_*_map calls)."

* tag 'parisc-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
  [PARISC] remove references to cpu_*_map.
  [PARISC] futex: Use same lock set as lws calls
...@@ -8,6 +8,29 @@ ...@@ -8,6 +8,29 @@
#include <asm/atomic.h> #include <asm/atomic.h>
#include <asm/errno.h> #include <asm/errno.h>
/* The following has to match the LWS code in syscall.S. We have
sixteen four-word locks. */
static inline void
_futex_spin_lock_irqsave(u32 __user *uaddr, unsigned long int *flags)
{
extern u32 lws_lock_start[];
long index = ((long)uaddr & 0xf0) >> 2;
arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
local_irq_save(*flags);
arch_spin_lock(s);
}
static inline void
_futex_spin_unlock_irqrestore(u32 __user *uaddr, unsigned long int *flags)
{
extern u32 lws_lock_start[];
long index = ((long)uaddr & 0xf0) >> 2;
arch_spinlock_t *s = (arch_spinlock_t *)&lws_lock_start[index];
arch_spin_unlock(s);
local_irq_restore(*flags);
}
static inline int static inline int
futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
{ {
...@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) ...@@ -26,7 +49,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
pagefault_disable(); pagefault_disable();
_atomic_spin_lock_irqsave(uaddr, flags); _futex_spin_lock_irqsave(uaddr, &flags);
switch (op) { switch (op) {
case FUTEX_OP_SET: case FUTEX_OP_SET:
...@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr) ...@@ -71,7 +94,7 @@ futex_atomic_op_inuser (int encoded_op, u32 __user *uaddr)
ret = -ENOSYS; ret = -ENOSYS;
} }
_atomic_spin_unlock_irqrestore(uaddr, flags); _futex_spin_unlock_irqrestore(uaddr, &flags);
pagefault_enable(); pagefault_enable();
...@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, ...@@ -113,7 +136,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
* address. This should scale to a couple of CPUs. * address. This should scale to a couple of CPUs.
*/ */
_atomic_spin_lock_irqsave(uaddr, flags); _futex_spin_lock_irqsave(uaddr, &flags);
ret = get_user(val, uaddr); ret = get_user(val, uaddr);
...@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, ...@@ -122,7 +145,7 @@ futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,
*uval = val; *uval = val;
_atomic_spin_unlock_irqrestore(uaddr, flags); _futex_spin_unlock_irqrestore(uaddr, &flags);
return ret; return ret;
} }
......
...@@ -290,8 +290,7 @@ smp_cpu_init(int cpunum) ...@@ -290,8 +290,7 @@ smp_cpu_init(int cpunum)
mb(); mb();
/* Well, support 2.4 linux scheme as well. */ /* Well, support 2.4 linux scheme as well. */
if (cpu_isset(cpunum, cpu_online_map)) if (cpu_online(cpunum)) {
{
extern void machine_halt(void); /* arch/parisc.../process.c */ extern void machine_halt(void); /* arch/parisc.../process.c */
printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum); printk(KERN_CRIT "CPU#%d already initialized!\n", cpunum);
......
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