cpumask: convert misc driver functions

Impact: use new cpumask API.

Convert misc driver functions to use struct cpumask.

To Do:
  - Convert iucv_buffer_cpumask to cpumask_var_t.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Acked-by: Dean Nelson <dcn@sgi.com>
Cc: Robert Richter <robert.richter@amd.com>
Cc: oprofile-list@lists.sf.net
Cc: Jeremy Fitzhardinge <jeremy@xensource.com>
Cc: Chris Wright <chrisw@sous-sol.org>
Cc: virtualization@lists.osdl.org
Cc: xen-devel@lists.xensource.com
Cc: Ursula Braun <ursula.braun@de.ibm.com>
Cc: linux390@de.ibm.com
Cc: linux-s390@vger.kernel.org

diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 719ee5c..5b257a5 100644 (file)
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -107,7 +107,7 @@ static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL);
 /*
  * Print cpu online, possible, present, and system maps
  */
-static ssize_t print_cpus_map(char *buf, cpumask_t *map)
+static ssize_t print_cpus_map(char *buf, const struct cpumask *map)
 {
        int n = cpulist_scnprintf(buf, PAGE_SIZE-2, map);
 

diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
index 89218f7..6576170 100644 (file)
--- a/drivers/misc/sgi-xp/xpc_main.c
+++ b/drivers/misc/sgi-xp/xpc_main.c
@@ -318,7 +318,7 @@ xpc_hb_checker(void *ignore)
 
        /* this thread was marked active by xpc_hb_init() */
 
-       set_cpus_allowed_ptr(current, &cpumask_of_cpu(XPC_HB_CHECK_CPU));
+       set_cpus_allowed_ptr(current, cpumask_of(XPC_HB_CHECK_CPU));
 
        /* set our heartbeating to other partitions into motion */
        xpc_hb_check_timeout = jiffies + (xpc_hb_check_interval * HZ);

diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c
index 9da5a4b..c3ea5fa 100644 (file)
--- a/drivers/oprofile/buffer_sync.c
+++ b/drivers/oprofile/buffer_sync.c
@@ -38,7 +38,7 @@
 
 static LIST_HEAD(dying_tasks);
 static LIST_HEAD(dead_tasks);
-static cpumask_t marked_cpus = CPU_MASK_NONE;
+static cpumask_var_t marked_cpus;
 static DEFINE_SPINLOCK(task_mortuary);
 static void process_task_mortuary(void);
 
@@ -456,10 +456,10 @@ static void mark_done(int cpu)
 {
        int i;
 
-       cpu_set(cpu, marked_cpus);
+       cpumask_set_cpu(cpu, marked_cpus);
 
        for_each_online_cpu(i) {
-               if (!cpu_isset(i, marked_cpus))
+               if (!cpumask_test_cpu(i, marked_cpus))
                        return;
        }
 
@@ -468,7 +468,7 @@ static void mark_done(int cpu)
         */
        process_task_mortuary();
 
-       cpus_clear(marked_cpus);
+       cpumask_clear(marked_cpus);
 }
 
 
@@ -565,6 +565,20 @@ void sync_buffer(int cpu)
        mutex_unlock(&buffer_mutex);
 }
 
+int __init buffer_sync_init(void)
+{
+       if (!alloc_cpumask_var(&marked_cpus, GFP_KERNEL))
+               return -ENOMEM;
+
+       cpumask_clear(marked_cpus);
+               return 0;
+}
+
+void __exit buffer_sync_cleanup(void)
+{
+       free_cpumask_var(marked_cpus);
+}
+
 /* The function can be used to add a buffer worth of data directly to
  * the kernel buffer. The buffer is assumed to be a circular buffer.
  * Take the entries from index start and end at index end, wrapping

diff --git a/drivers/oprofile/buffer_sync.h b/drivers/oprofile/buffer_sync.h
index 3110732..0ebf5db 100644 (file)
--- a/drivers/oprofile/buffer_sync.h
+++ b/drivers/oprofile/buffer_sync.h
@@ -19,4 +19,8 @@ void sync_stop(void);
 /* sync the given CPU's buffer */
 void sync_buffer(int cpu);
 
+/* initialize/destroy the buffer system. */
+int buffer_sync_init(void);
+void buffer_sync_cleanup(void);
+
 #endif /* OPROFILE_BUFFER_SYNC_H */

diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index 3cffce9..ced39f6 100644 (file)
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -183,6 +183,10 @@ static int __init oprofile_init(void)
 {
        int err;
 
+       err = buffer_sync_init();
+       if (err)
+               return err;
+
        err = oprofile_arch_init(&oprofile_ops);
 
        if (err < 0 || timer) {
@@ -191,8 +195,10 @@ static int __init oprofile_init(void)
        }
 
        err = oprofilefs_register();
-       if (err)
+       if (err) {
                oprofile_arch_exit();
+               buffer_sync_cleanup();
+       }
 
        return err;
 }
@@ -202,6 +208,7 @@ static void __exit oprofile_exit(void)
 {
        oprofilefs_unregister();
        oprofile_arch_exit();
+       buffer_sync_cleanup();
 }
 
 

diff --git a/drivers/xen/manage.c b/drivers/xen/manage.c
index 9b91617..e7e83b6 100644 (file)
--- a/drivers/xen/manage.c
+++ b/drivers/xen/manage.c
@@ -100,7 +100,7 @@ static void do_suspend(void)
        /* XXX use normal device tree? */
        xenbus_suspend();
 
-       err = stop_machine(xen_suspend, &cancelled, &cpumask_of_cpu(0));
+       err = stop_machine(xen_suspend, &cancelled, cpumask_of(0));
        if (err) {
                printk(KERN_ERR "failed to start xen_suspend: %d\n", err);
                goto out;