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authorDavid Woodhouse <David.Woodhouse@intel.com>2008-07-11 15:36:25 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-07-11 15:36:25 +0200
commita8931ef380c92d121ae74ecfb03b2d63f72eea6f (patch)
tree980fb6b019e11e6cb1ece55b7faff184721a8053 /arch/ia64/kernel/smp.c
parent[MTD] [NAND] Fix checkpatch warnings which showed up when atmel_nand.c moved (diff)
parentMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 (diff)
downloadlinux-a8931ef380c92d121ae74ecfb03b2d63f72eea6f.tar.xz
linux-a8931ef380c92d121ae74ecfb03b2d63f72eea6f.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'arch/ia64/kernel/smp.c')
-rw-r--r--arch/ia64/kernel/smp.c68
1 files changed, 35 insertions, 33 deletions
diff --git a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
index 9a9d4c489330..983296f1c813 100644
--- a/arch/ia64/kernel/smp.c
+++ b/arch/ia64/kernel/smp.c
@@ -98,8 +98,33 @@ unlock_ipi_calllock(void)
spin_unlock_irq(&call_lock);
}
+static inline void
+handle_call_data(void)
+{
+ struct call_data_struct *data;
+ void (*func)(void *info);
+ void *info;
+ int wait;
+
+ /* release the 'pointer lock' */
+ data = (struct call_data_struct *)call_data;
+ func = data->func;
+ info = data->info;
+ wait = data->wait;
+
+ mb();
+ atomic_inc(&data->started);
+ /* At this point the structure may be gone unless wait is true. */
+ (*func)(info);
+
+ /* Notify the sending CPU that the task is done. */
+ mb();
+ if (wait)
+ atomic_inc(&data->finished);
+}
+
static void
-stop_this_cpu (void)
+stop_this_cpu(void)
{
/*
* Remove this CPU:
@@ -138,44 +163,21 @@ handle_IPI (int irq, void *dev_id)
ops &= ~(1 << which);
switch (which) {
- case IPI_CALL_FUNC:
- {
- struct call_data_struct *data;
- void (*func)(void *info);
- void *info;
- int wait;
-
- /* release the 'pointer lock' */
- data = (struct call_data_struct *) call_data;
- func = data->func;
- info = data->info;
- wait = data->wait;
-
- mb();
- atomic_inc(&data->started);
- /*
- * At this point the structure may be gone unless
- * wait is true.
- */
- (*func)(info);
-
- /* Notify the sending CPU that the task is done. */
- mb();
- if (wait)
- atomic_inc(&data->finished);
- }
- break;
-
- case IPI_CPU_STOP:
+ case IPI_CALL_FUNC:
+ handle_call_data();
+ break;
+
+ case IPI_CPU_STOP:
stop_this_cpu();
break;
#ifdef CONFIG_KEXEC
- case IPI_KDUMP_CPU_STOP:
+ case IPI_KDUMP_CPU_STOP:
unw_init_running(kdump_cpu_freeze, NULL);
break;
#endif
- default:
- printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n", this_cpu, which);
+ default:
+ printk(KERN_CRIT "Unknown IPI on CPU %d: %lu\n",
+ this_cpu, which);
break;
}
} while (ops);