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xfs: refactor quota timestamp coding 

Refactor quota timestamp encoding and decoding into helper functions so
that we can add extra behavior in the next patch.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.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 14:08:23 -07:00
parent ccc8e771aa
commit 9f99c8fe55
3 changed files with 29 additions and 6 deletions
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18
fs/xfs/libxfs/xfs_dquot_buf.c
View File

@ -288,3 +288,21 @@ const struct xfs_buf_ops xfs_dquot_buf_ra_ops = {
.verify_read = xfs_dquot_buf_readahead_verify,
.verify_write = xfs_dquot_buf_write_verify,
};
/* Convert an on-disk timer value into an incore timer value. */
time64_t
xfs_dquot_from_disk_ts(
struct xfs_disk_dquot *ddq,
__be32 dtimer)
{
return be32_to_cpu(dtimer);
}
/* Convert an incore timer value into an on-disk timer value. */
__be32
xfs_dquot_to_disk_ts(
struct xfs_dquot *dqp,
time64_t timer)
{
return cpu_to_be32(timer);
}

5
fs/xfs/libxfs/xfs_quota_defs.h
View File

@ -143,4 +143,9 @@ extern int xfs_calc_dquots_per_chunk(unsigned int nbblks);
extern void xfs_dqblk_repair(struct xfs_mount *mp, struct xfs_dqblk *dqb,
xfs_dqid_t id, xfs_dqtype_t type);
struct xfs_dquot;
time64_t xfs_dquot_from_disk_ts(struct xfs_disk_dquot *ddq,
__be32 dtimer);
__be32 xfs_dquot_to_disk_ts(struct xfs_dquot *ddq, time64_t timer);
#endif /* __XFS_QUOTA_H__ */

12
fs/xfs/xfs_dquot.c
View File

@ -536,9 +536,9 @@ xfs_dquot_from_disk(
dqp->q_ino.warnings = be16_to_cpu(ddqp->d_iwarns);
dqp->q_rtb.warnings = be16_to_cpu(ddqp->d_rtbwarns);
dqp->q_blk.timer = be32_to_cpu(ddqp->d_btimer);
dqp->q_ino.timer = be32_to_cpu(ddqp->d_itimer);
dqp->q_rtb.timer = be32_to_cpu(ddqp->d_rtbtimer);
dqp->q_blk.timer = xfs_dquot_from_disk_ts(ddqp, ddqp->d_btimer);
dqp->q_ino.timer = xfs_dquot_from_disk_ts(ddqp, ddqp->d_itimer);
dqp->q_rtb.timer = xfs_dquot_from_disk_ts(ddqp, ddqp->d_rtbtimer);
/*
* Reservation counters are defined as reservation plus current usage
@ -581,9 +581,9 @@ xfs_dquot_to_disk(
ddqp->d_iwarns = cpu_to_be16(dqp->q_ino.warnings);
ddqp->d_rtbwarns = cpu_to_be16(dqp->q_rtb.warnings);
ddqp->d_btimer = cpu_to_be32(dqp->q_blk.timer);
ddqp->d_itimer = cpu_to_be32(dqp->q_ino.timer);
ddqp->d_rtbtimer = cpu_to_be32(dqp->q_rtb.timer);
ddqp->d_btimer = xfs_dquot_to_disk_ts(dqp, dqp->q_blk.timer);
ddqp->d_itimer = xfs_dquot_to_disk_ts(dqp, dqp->q_ino.timer);
ddqp->d_rtbtimer = xfs_dquot_to_disk_ts(dqp, dqp->q_rtb.timer);
}
/* Allocate and initialize the dquot buffer for this in-core dquot. */