block: make /proc/diskstats only build if CONFIG_PROC_FS is enabled
These functions are only needed if CONFIG_PROC_FS is enabled, so save the space when it is not. This also makes it easier for a patch later in this series to work properly if CONFIG_PROC_FS is not enabled. Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -544,6 +544,7 @@ static struct device_type disk_type = {
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.release = disk_release,
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};
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#ifdef CONFIG_PROC_FS
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/*
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* aggregate disk stat collector. Uses the same stats that the sysfs
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* entries do, above, but makes them available through one seq_file.
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@ -653,6 +654,7 @@ const struct seq_operations diskstats_op = {
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.stop = diskstats_stop,
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.show = diskstats_show
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};
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#endif /* CONFIG_PROC_FS */
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static void media_change_notify_thread(struct work_struct *work)
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{
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