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xfs: Remove incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD

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Remove all incore use of XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD. Instead,
start using XFS_GQUOTA_.* XFS_PQUOTA_.* counterparts for GQUOTA and
PQUOTA respectively.

On-disk copy still uses XFS_OQUOTA_ENFD and XFS_OQUOTA_CHKD.

Read and write of the superblock does the conversion from *OQUOTA*
to *[PG]QUOTA*.

Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Reviewed-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
This commit is contained in:
Chandra Seetharaman 2013-06-27 17:25:10 -05:00 • committed by Ben Myers
parent 0e6436d99e
commit 83e782e1a1
7 changed files with 123 additions and 53 deletions
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51
fs/xfs/xfs_mount.c
View file

@ -336,6 +336,14 @@ xfs_mount_validate_sb(
return XFS_ERROR(EWRONGFS);
}
if ((sbp->sb_qflags & (XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD)) &&
(sbp->sb_qflags & (XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD |
XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))) {
xfs_notice(mp,
"Super block has XFS_OQUOTA bits along with XFS_PQUOTA and/or XFS_GQUOTA bits.\n");
return XFS_ERROR(EFSCORRUPTED);
}
/*
* Version 5 superblock feature mask validation. Reject combinations the
* kernel cannot support up front before checking anything else. For
@ -561,6 +569,18 @@ out_unwind:
return error;
}
static void
xfs_sb_quota_from_disk(struct xfs_sb *sbp)
{
if (sbp->sb_qflags & XFS_OQUOTA_ENFD)
sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ?
XFS_PQUOTA_ENFD : XFS_GQUOTA_ENFD;
if (sbp->sb_qflags & XFS_OQUOTA_CHKD)
sbp->sb_qflags |= (sbp->sb_qflags & XFS_PQUOTA_ACCT) ?
XFS_PQUOTA_CHKD : XFS_GQUOTA_CHKD;
sbp->sb_qflags &= ~(XFS_OQUOTA_ENFD | XFS_OQUOTA_CHKD);
}
void
xfs_sb_from_disk(
struct xfs_sb *to,
@ -622,6 +642,35 @@ xfs_sb_from_disk(
to->sb_lsn = be64_to_cpu(from->sb_lsn);
}
static inline void
xfs_sb_quota_to_disk(
xfs_dsb_t *to,
xfs_sb_t *from,
__int64_t *fields)
{
__uint16_t qflags = from->sb_qflags;
if (*fields & XFS_SB_QFLAGS) {
/*
* The in-core version of sb_qflags do not have
* XFS_OQUOTA_* flags, whereas the on-disk version
* does. So, convert incore XFS_{PG}QUOTA_* flags
* to on-disk XFS_OQUOTA_* flags.
*/
qflags &= ~(XFS_PQUOTA_ENFD | XFS_PQUOTA_CHKD |
XFS_GQUOTA_ENFD | XFS_GQUOTA_CHKD);
if (from->sb_qflags &
(XFS_PQUOTA_ENFD | XFS_GQUOTA_ENFD))
qflags |= XFS_OQUOTA_ENFD;
if (from->sb_qflags &
(XFS_PQUOTA_CHKD | XFS_GQUOTA_CHKD))
qflags |= XFS_OQUOTA_CHKD;
to->sb_qflags = cpu_to_be16(qflags);
*fields &= ~XFS_SB_QFLAGS;
}
}
/*
* Copy in core superblock to ondisk one.
*
@ -643,6 +692,7 @@ xfs_sb_to_disk(
if (!fields)
return;
xfs_sb_quota_to_disk(to, from, &fields);
while (fields) {
f = (xfs_sb_field_t)xfs_lowbit64((__uint64_t)fields);
first = xfs_sb_info[f].offset;
@ -835,6 +885,7 @@ reread:
*/
xfs_sb_from_disk(&mp->m_sb, XFS_BUF_TO_SBP(bp));
xfs_sb_quota_from_disk(&mp->m_sb);
/*
* We must be able to do sector-sized and sector-aligned IO.
*/