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aa1b1fa34f
Add a little header for inline convenience functions. Signed-off-by: Zach Brown <zab@versity.com>
21 lines
322 B
C
21 lines
322 B
C
#ifndef _SCOUTFS_UTIL_H_
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#define _SCOUTFS_UTIL_H_
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/*
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* Little utility helpers that probably belong upstream.
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*/
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static inline void down_write_two(struct rw_semaphore *a,
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struct rw_semaphore *b)
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{
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BUG_ON(a == b);
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if (a > b)
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swap(a, b);
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down_write(a);
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down_write_nested(b, SINGLE_DEPTH_NESTING);
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}
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#endif
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