xfs: cache quota grace period expiration times incore

Create an in-core timestamp that will tell us when a quota's grace
period expires.  In the subsequent bigtime patchset we will sacrifice
precision in the on-disk grace period timestamp to enable larger
timestamps across the filesystem, but we'll maintain an incore copy so
that we can maintain precision so long as the filesystem isn't
unmounted.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/fs/xfs/xfs_dquot.h b/fs/xfs/xfs_dquot.h
index d924da98f66a..99c0d6266fd8 100644
--- a/fs/xfs/xfs_dquot.h
+++ b/fs/xfs/xfs_dquot.h
@@ -60,6 +60,14 @@ struct xfs_dquot {
 	xfs_qcnt_t		q_prealloc_lo_wmark;
 	xfs_qcnt_t		q_prealloc_hi_wmark;
 	int64_t			q_low_space[XFS_QLOWSP_MAX];
+
+	/* incore block grace timeout */
+	time64_t		q_btimer;
+	/* incore inode grace timeout */
+	time64_t		q_itimer;
+	/* incore rt block grace timeout */
+	time64_t		q_rtbtimer;
+
 	struct mutex		q_qlock;
 	struct completion	q_flush;
 	atomic_t		q_pincount;