--- /dev/null
+/*
+ * Copyright (c) 2008, Christoph Hellwig
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it would be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+#include "xfs.h"
+#include "xfs_format.h"
+#include "xfs_log_format.h"
+#include "xfs_trans_resv.h"
+#include "xfs_mount.h"
+#include "xfs_inode.h"
+#include "xfs_quota.h"
+#include "xfs_trans.h"
+#include "xfs_trace.h"
+#include "xfs_icache.h"
+#include "xfs_qm.h"
+#include <linux/quota.h>
+
+
+static void
+xfs_qm_fill_state(
+ struct qc_type_state *tstate,
+ struct xfs_mount *mp,
+ struct xfs_inode *ip,
+ xfs_ino_t ino)
+{
+ struct xfs_quotainfo *q = mp->m_quotainfo;
+ bool tempqip = false;
+
+ tstate->ino = ino;
+ if (!ip && ino == NULLFSINO)
+ return;
+ if (!ip) {
+ if (xfs_iget(mp, NULL, ino, 0, 0, &ip))
+ return;
+ tempqip = true;
+ }
+ tstate->flags |= QCI_SYSFILE;
+ tstate->blocks = ip->i_d.di_nblocks;
+ tstate->nextents = ip->i_d.di_nextents;
+ tstate->spc_timelimit = q->qi_btimelimit;
+ tstate->ino_timelimit = q->qi_itimelimit;
+ tstate->rt_spc_timelimit = q->qi_rtbtimelimit;
+ tstate->spc_warnlimit = q->qi_bwarnlimit;
+ tstate->ino_warnlimit = q->qi_iwarnlimit;
+ tstate->rt_spc_warnlimit = q->qi_rtbwarnlimit;
+ if (tempqip)
+ IRELE(ip);
+}
+
+/*
+ * Return quota status information, such as enforcements, quota file inode
+ * numbers etc.
+ */
+static int
+xfs_fs_get_quota_state(
+ struct super_block *sb,
+ struct qc_state *state)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+ struct xfs_quotainfo *q = mp->m_quotainfo;
+
+ memset(state, 0, sizeof(*state));
+ if (!XFS_IS_QUOTA_RUNNING(mp))
+ return 0;
+ state->s_incoredqs = q->qi_dquots;
+ if (XFS_IS_UQUOTA_RUNNING(mp))
+ state->s_state[USRQUOTA].flags |= QCI_ACCT_ENABLED;
+ if (XFS_IS_UQUOTA_ENFORCED(mp))
+ state->s_state[USRQUOTA].flags |= QCI_LIMITS_ENFORCED;
+ if (XFS_IS_GQUOTA_RUNNING(mp))
+ state->s_state[GRPQUOTA].flags |= QCI_ACCT_ENABLED;
+ if (XFS_IS_GQUOTA_ENFORCED(mp))
+ state->s_state[GRPQUOTA].flags |= QCI_LIMITS_ENFORCED;
+ if (XFS_IS_PQUOTA_RUNNING(mp))
+ state->s_state[PRJQUOTA].flags |= QCI_ACCT_ENABLED;
+ if (XFS_IS_PQUOTA_ENFORCED(mp))
+ state->s_state[PRJQUOTA].flags |= QCI_LIMITS_ENFORCED;
+
+ xfs_qm_fill_state(&state->s_state[USRQUOTA], mp, q->qi_uquotaip,
+ mp->m_sb.sb_uquotino);
+ xfs_qm_fill_state(&state->s_state[GRPQUOTA], mp, q->qi_gquotaip,
+ mp->m_sb.sb_gquotino);
+ xfs_qm_fill_state(&state->s_state[PRJQUOTA], mp, q->qi_pquotaip,
+ mp->m_sb.sb_pquotino);
+ return 0;
+}
+
+STATIC int
+xfs_quota_type(int type)
+{
+ switch (type) {
+ case USRQUOTA:
+ return XFS_DQ_USER;
+ case GRPQUOTA:
+ return XFS_DQ_GROUP;
+ default:
+ return XFS_DQ_PROJ;
+ }
+}
+
+#define XFS_QC_SETINFO_MASK (QC_TIMER_MASK | QC_WARNS_MASK)
+
+/*
+ * Adjust quota timers & warnings
+ */
+static int
+xfs_fs_set_info(
+ struct super_block *sb,
+ int type,
+ struct qc_info *info)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+ struct qc_dqblk newlim;
+
+ if (sb->s_flags & MS_RDONLY)
+ return -EROFS;
+ if (!XFS_IS_QUOTA_RUNNING(mp))
+ return -ENOSYS;
+ if (!XFS_IS_QUOTA_ON(mp))
+ return -ESRCH;
+ if (info->i_fieldmask & ~XFS_QC_SETINFO_MASK)
+ return -EINVAL;
+ if ((info->i_fieldmask & XFS_QC_SETINFO_MASK) == 0)
+ return 0;
+
+ newlim.d_fieldmask = info->i_fieldmask;
+ newlim.d_spc_timer = info->i_spc_timelimit;
+ newlim.d_ino_timer = info->i_ino_timelimit;
+ newlim.d_rt_spc_timer = info->i_rt_spc_timelimit;
+ newlim.d_ino_warns = info->i_ino_warnlimit;
+ newlim.d_spc_warns = info->i_spc_warnlimit;
+ newlim.d_rt_spc_warns = info->i_rt_spc_warnlimit;
+
+ return xfs_qm_scall_setqlim(mp, 0, xfs_quota_type(type), &newlim);
+}
+
+static unsigned int
+xfs_quota_flags(unsigned int uflags)
+{
+ unsigned int flags = 0;
+
+ if (uflags & FS_QUOTA_UDQ_ACCT)
+ flags |= XFS_UQUOTA_ACCT;
+ if (uflags & FS_QUOTA_PDQ_ACCT)
+ flags |= XFS_PQUOTA_ACCT;
+ if (uflags & FS_QUOTA_GDQ_ACCT)
+ flags |= XFS_GQUOTA_ACCT;
+ if (uflags & FS_QUOTA_UDQ_ENFD)
+ flags |= XFS_UQUOTA_ENFD;
+ if (uflags & FS_QUOTA_GDQ_ENFD)
+ flags |= XFS_GQUOTA_ENFD;
+ if (uflags & FS_QUOTA_PDQ_ENFD)
+ flags |= XFS_PQUOTA_ENFD;
+
+ return flags;
+}
+
+STATIC int
+xfs_quota_enable(
+ struct super_block *sb,
+ unsigned int uflags)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+
+ if (sb->s_flags & MS_RDONLY)
+ return -EROFS;
+ if (!XFS_IS_QUOTA_RUNNING(mp))
+ return -ENOSYS;
+
+ return xfs_qm_scall_quotaon(mp, xfs_quota_flags(uflags));
+}
+
+STATIC int
+xfs_quota_disable(
+ struct super_block *sb,
+ unsigned int uflags)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+
+ if (sb->s_flags & MS_RDONLY)
+ return -EROFS;
+ if (!XFS_IS_QUOTA_RUNNING(mp))
+ return -ENOSYS;
+ if (!XFS_IS_QUOTA_ON(mp))
+ return -EINVAL;
+
+ return xfs_qm_scall_quotaoff(mp, xfs_quota_flags(uflags));
+}
+
+STATIC int
+xfs_fs_rm_xquota(
+ struct super_block *sb,
+ unsigned int uflags)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+ unsigned int flags = 0;
+
+ if (sb->s_flags & MS_RDONLY)
+ return -EROFS;
+
+ if (XFS_IS_QUOTA_ON(mp))
+ return -EINVAL;
+
+ if (uflags & FS_USER_QUOTA)
+ flags |= XFS_DQ_USER;
+ if (uflags & FS_GROUP_QUOTA)
+ flags |= XFS_DQ_GROUP;
+ if (uflags & FS_PROJ_QUOTA)
+ flags |= XFS_DQ_PROJ;
+
+ return xfs_qm_scall_trunc_qfiles(mp, flags);
+}
+
+STATIC int
+xfs_fs_get_dqblk(
+ struct super_block *sb,
+ struct kqid qid,
+ struct qc_dqblk *qdq)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+
+ if (!XFS_IS_QUOTA_RUNNING(mp))
+ return -ENOSYS;
+ if (!XFS_IS_QUOTA_ON(mp))
+ return -ESRCH;
+
+ return xfs_qm_scall_getquota(mp, from_kqid(&init_user_ns, qid),
+ xfs_quota_type(qid.type), qdq);
+}
+
+STATIC int
+xfs_fs_set_dqblk(
+ struct super_block *sb,
+ struct kqid qid,
+ struct qc_dqblk *qdq)
+{
+ struct xfs_mount *mp = XFS_M(sb);
+
+ if (sb->s_flags & MS_RDONLY)
+ return -EROFS;
+ if (!XFS_IS_QUOTA_RUNNING(mp))
+ return -ENOSYS;
+ if (!XFS_IS_QUOTA_ON(mp))
+ return -ESRCH;
+
+ return xfs_qm_scall_setqlim(mp, from_kqid(&init_user_ns, qid),
+ xfs_quota_type(qid.type), qdq);
+}
+
+const struct quotactl_ops xfs_quotactl_operations = {
+ .get_state = xfs_fs_get_quota_state,
+ .set_info = xfs_fs_set_info,
+ .quota_enable = xfs_quota_enable,
+ .quota_disable = xfs_quota_disable,
+ .rm_xquota = xfs_fs_rm_xquota,
+ .get_dqblk = xfs_fs_get_dqblk,
+ .set_dqblk = xfs_fs_set_dqblk,
+};
Code Review / kvmfornfv.git / blobdiff