[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>
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@ -101,10 +101,8 @@ static ssize_t show_crash_notes(struct sys_device *dev, char *buf)
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* boot up and this data does not change there after. Hence this
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* operation should be safe. No locking required.
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*/
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get_cpu();
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addr = __pa(per_cpu_ptr(crash_notes, cpunum));
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rc = sprintf(buf, "%Lx\n", addr);
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put_cpu();
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return rc;
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}
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static SYSDEV_ATTR(crash_notes, 0400, show_crash_notes, NULL);
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