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Add scoutfs_key_is_ones()

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Add a quick inline for testing that a key is all ones.

Signed-off-by: Zach Brown <zab@versity.com>
This commit is contained in:
Zach Brown
2020-12-18 09:26:32 -08:00
parent d8478ed6f1
commit 082924df1a
1 changed files with 10 additions and 0 deletions
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10
kmod/src/key.h
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@@ -108,6 +108,16 @@ static inline void scoutfs_key_set_ones(struct scoutfs_key *key)
memset(key->__pad, 0, sizeof(key->__pad));
}
static inline bool scoutfs_key_is_ones(struct scoutfs_key *key)
{
return key->sk_zone == U8_MAX &&
key->_sk_first == cpu_to_le64(U64_MAX) &&
key->sk_type == U8_MAX &&
key->_sk_second == cpu_to_le64(U64_MAX) &&
key->_sk_third == cpu_to_le64(U64_MAX) &&
key->_sk_fourth == U8_MAX;
}
/*
* Return a -1/0/1 comparison of keys.
*