Commit 35ed319a authored by Vivek Goyal's avatar Vivek Goyal Committed by Linus Torvalds
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[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: default avatarVivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 51be5606

drivers/base/cpu.c

+0 −2
Original line number Diff line number Diff line
@@ -101,10 +101,8 @@ static ssize_t show_crash_notes(struct sys_device *dev, char *buf) 
	 * 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);

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