[PATCH] kdump: export per cpu crash notes pointer through sysfs (fix)
Removes the call to get_cpu() and put_cpu() as it is not required.
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 982e658..07a7f97 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -101,10 +101,8 @@
* boot up and this data does not change there after. Hence this
* operation should be safe. No locking required.
*/
- get_cpu();
addr = __pa(per_cpu_ptr(crash_notes, cpunum));
rc = sprintf(buf, "%Lx\n", addr);
- put_cpu();
return rc;
}
static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL);