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xfs: widen ondisk quota expiration timestamps to handle y2038+

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Enable the bigtime feature for quota timers.  We decrease the accuracy
of the timers to ~4s in exchange for being able to set timers up to the
bigtime maximum.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
This commit is contained in:
Darrick J. Wong
2020-08-17 09:59:51 -07:00
parent f93e5436f0
commit 4ea1ff3b49
7 changed files with 102 additions and 6 deletions
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6
fs/xfs/xfs_trans_dquot.c
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@@ -55,6 +55,12 @@ xfs_trans_log_dquot(
{
ASSERT(XFS_DQ_IS_LOCKED(dqp));
/* Upgrade the dquot to bigtime format if possible. */
if (dqp->q_id != 0 &&
xfs_sb_version_hasbigtime(&tp->t_mountp->m_sb) &&
!(dqp->q_type & XFS_DQTYPE_BIGTIME))
dqp->q_type |= XFS_DQTYPE_BIGTIME;
tp->t_flags |= XFS_TRANS_DIRTY;
set_bit(XFS_LI_DIRTY, &dqp->q_logitem.qli_item.li_flags);
}