From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Define explicit limits on the range of quota grace period expiration timeouts and refactor the code that modifies the timeouts into helpers that clamp the values appropriately. Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> --- libxfs/xfs_format.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/libxfs/xfs_format.h b/libxfs/xfs_format.h index f2a851e49ec3..829eb1e035a5 100644 --- a/libxfs/xfs_format.h +++ b/libxfs/xfs_format.h @@ -1198,6 +1198,28 @@ static inline void xfs_dinode_put_rdev(struct xfs_dinode *dip, xfs_dev_t rdev) #define XFS_DQTYPE_ANY (XFS_DQTYPE_REC_MASK) +/* + * XFS Quota Timers + * ================ + * + * Quota grace period expiration timers are an unsigned 32-bit seconds counter; + * time zero is the Unix epoch, Jan 1 00:00:01 UTC 1970. An expiration value + * of zero means that the quota limit has not been reached, and therefore no + * expiration has been set. + */ + +/* + * Smallest possible quota expiration with traditional timestamps, which is + * Jan 1 00:00:01 UTC 1970. + */ +#define XFS_DQ_TIMEOUT_MIN ((int64_t)1) + +/* + * Largest possible quota expiration with traditional timestamps, which is + * Feb 7 06:28:15 UTC 2106. + */ +#define XFS_DQ_TIMEOUT_MAX ((int64_t)U32_MAX) + /* * This is the main portion of the on-disk representation of quota information * for a user. We pad this with some more expansion room to construct the on
