blkio: fix for modular blk-cgroup build
After merging the block tree, 20100414's linux-next build (x86_64 allmodconfig) failed like this: ERROR: "get_gendisk" [block/blk-cgroup.ko] undefined! ERROR: "sched_clock" [block/blk-cgroup.ko] undefined! This happens because the two symbols aren't exported and hence not available when blk-cgroup code is built as a module. I've tried to stay consistent with the use of EXPORT_SYMBOL or EXPORT_SYMBOL_GPL with the other symbols in the respective files. Signed-off-by: Divyesh Shah <dpshah@google.com> Acked-by: Gui Jianfeng <guijianfeng@cn.fujitsu.cn> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -596,6 +596,7 @@ struct gendisk *get_gendisk(dev_t devt, int *partno)
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return disk;
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}
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EXPORT_SYMBOL(get_gendisk);
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/**
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* bdget_disk - do bdget() by gendisk and partition number
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@ -41,6 +41,7 @@ unsigned long long __attribute__((weak)) sched_clock(void)
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return (unsigned long long)(jiffies - INITIAL_JIFFIES)
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* (NSEC_PER_SEC / HZ);
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}
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EXPORT_SYMBOL_GPL(sched_clock);
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static __read_mostly int sched_clock_running;
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