diff options
Diffstat (limited to 'include/linux/quota.h')
| -rw-r--r-- | include/linux/quota.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/quota.h b/include/linux/quota.h index 8486d27cf360..55107a8ff887 100644 --- a/include/linux/quota.h +++ b/include/linux/quota.h @@ -179,6 +179,16 @@ static inline struct kqid make_kqid_projid(kprojid_t projid) return kqid; } +/** + * qid_has_mapping - Report if a qid maps into a user namespace. + * @ns: The user namespace to see if a value maps into. + * @qid: The kernel internal quota identifier to test. + */ +static inline bool qid_has_mapping(struct user_namespace *ns, struct kqid qid) +{ + return from_kqid(ns, qid) != (qid_t) -1; +} + extern spinlock_t dq_data_lock; |