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| author | James Morris <jmorris@namei.org> | 2011-03-30 08:51:46 +1100 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2011-03-30 08:51:46 +1100 |
| commit | 93b9c98b3498db5842e2812b32cff4c1ae947eb1 (patch) | |
| tree | 2d18e46cadcbf66fff695bb16e86531281cde7be /include/linux | |
| parent | efb3bb4fad062f8e9b8c9c945d499597e14007e7 (diff) | |
| parent | 5806896019ceaa0a1e808182afb4bba33c948ad6 (diff) | |
| download | linux-93b9c98b3498db5842e2812b32cff4c1ae947eb1.tar.gz linux-93b9c98b3498db5842e2812b32cff4c1ae947eb1.tar.bz2 linux-93b9c98b3498db5842e2812b32cff4c1ae947eb1.zip | |
Merge branch 'next-queue' into next
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/key.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/key.h b/include/linux/key.h index b2bb01719561..ef19b99aff98 100644 --- a/include/linux/key.h +++ b/include/linux/key.h @@ -276,6 +276,19 @@ static inline key_serial_t key_serial(struct key *key) return key ? key->serial : 0; } +/** + * key_is_instantiated - Determine if a key has been positively instantiated + * @key: The key to check. + * + * Return true if the specified key has been positively instantiated, false + * otherwise. + */ +static inline bool key_is_instantiated(const struct key *key) +{ + return test_bit(KEY_FLAG_INSTANTIATED, &key->flags) && + !test_bit(KEY_FLAG_NEGATIVE, &key->flags); +} + #define rcu_dereference_key(KEY) \ (rcu_dereference_protected((KEY)->payload.rcudata, \ rwsem_is_locked(&((struct key *)(KEY))->sem))) |