/* Force a quotacheck the next time we mount. */
void
xrep_force_quotacheck(
struct xfs_scrub *sc,
uint dqtype)
{
uint flag;
flag = xfs_quota_chkd_flag(dqtype);
if (!(flag & sc->mp->m_qflags))
return;
sc->mp->m_qflags &= ~flag;
spin_lock(&sc->mp->m_sb_lock);
sc->mp->m_sb.sb_qflags &= ~flag;
spin_unlock(&sc->mp->m_sb_lock);
xfs_log_sb(sc->tp);
}
/*
* xfs_sync_sb
*
* Sync the superblock to disk.
*
* Note that the caller is responsible for checking the frozen state of the
* filesystem. This procedure uses the non-blocking transaction allocator and
* thus will allow modifications to a frozen fs. This is required because this
* code can be called during the process of freezing where use of the high-level
* allocator would deadlock.
*/
int
xfs_sync_sb(
struct xfs_mount *mp,
bool wait)
{
struct xfs_trans *tp;
int error;
tp = _xfs_trans_alloc(mp, XFS_TRANS_SB_CHANGE, KM_SLEEP);
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_sb, 0, 0);
if (error) {
xfs_trans_cancel(tp, 0);
return error;
}
xfs_log_sb(tp);
if (wait)
xfs_trans_set_sync(tp);
return xfs_trans_commit(tp, 0);
}
/*
* Create an inode and return with a reference already taken, but unlocked
* This is how we create quota inodes
*/
STATIC int
xfs_qm_qino_alloc(
xfs_mount_t *mp,
xfs_inode_t **ip,
uint flags)
{
xfs_trans_t *tp;
int error;
int committed;
bool need_alloc = true;
*ip = NULL;
/*
* With superblock that doesn't have separate pquotino, we
* share an inode between gquota and pquota. If the on-disk
* superblock has GQUOTA and the filesystem is now mounted
* with PQUOTA, just use sb_gquotino for sb_pquotino and
* vice-versa.
*/
if (!xfs_sb_version_has_pquotino(&mp->m_sb) &&
(flags & (XFS_QMOPT_PQUOTA|XFS_QMOPT_GQUOTA))) {
xfs_ino_t ino = NULLFSINO;
if ((flags & XFS_QMOPT_PQUOTA) &&
(mp->m_sb.sb_gquotino != NULLFSINO)) {
ino = mp->m_sb.sb_gquotino;
ASSERT(mp->m_sb.sb_pquotino == NULLFSINO);
} else if ((flags & XFS_QMOPT_GQUOTA) &&
(mp->m_sb.sb_pquotino != NULLFSINO)) {
ino = mp->m_sb.sb_pquotino;
ASSERT(mp->m_sb.sb_gquotino == NULLFSINO);
}
if (ino != NULLFSINO) {
error = xfs_iget(mp, NULL, ino, 0, 0, ip);
if (error)
return error;
mp->m_sb.sb_gquotino = NULLFSINO;
mp->m_sb.sb_pquotino = NULLFSINO;
need_alloc = false;
}
}
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_QINOCREATE);
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_create,
XFS_QM_QINOCREATE_SPACE_RES(mp), 0);
if (error) {
xfs_trans_cancel(tp, 0);
return error;
}
if (need_alloc) {
error = xfs_dir_ialloc(&tp, NULL, S_IFREG, 1, 0, 0, 1, ip,
&committed);
if (error) {
xfs_trans_cancel(tp, XFS_TRANS_RELEASE_LOG_RES |
XFS_TRANS_ABORT);
return error;
}
}
/*
* Make the changes in the superblock, and log those too.
* sbfields arg may contain fields other than *QUOTINO;
* VERSIONNUM for example.
*/
spin_lock(&mp->m_sb_lock);
if (flags & XFS_QMOPT_SBVERSION) {
ASSERT(!xfs_sb_version_hasquota(&mp->m_sb));
xfs_sb_version_addquota(&mp->m_sb);
mp->m_sb.sb_uquotino = NULLFSINO;
mp->m_sb.sb_gquotino = NULLFSINO;
mp->m_sb.sb_pquotino = NULLFSINO;
/* qflags will get updated fully _after_ quotacheck */
mp->m_sb.sb_qflags = mp->m_qflags & XFS_ALL_QUOTA_ACCT;
}
if (flags & XFS_QMOPT_UQUOTA)
mp->m_sb.sb_uquotino = (*ip)->i_ino;
else if (flags & XFS_QMOPT_GQUOTA)
mp->m_sb.sb_gquotino = (*ip)->i_ino;
else
mp->m_sb.sb_pquotino = (*ip)->i_ino;
spin_unlock(&mp->m_sb_lock);
xfs_log_sb(tp);
error = xfs_trans_commit(tp, XFS_TRANS_RELEASE_LOG_RES);
if (error) {
ASSERT(XFS_FORCED_SHUTDOWN(mp));
xfs_alert(mp, "%s failed (error %d)!", __func__, error);
}
if (need_alloc)
xfs_finish_inode_setup(*ip);
return error;
}
