linux_dsm_epyc7002/fs/xfs/xfs_quotaops.c
Darrick J. Wong 8cd4901da5 xfs: rename XFS_DQ_{USER,GROUP,PROJ} to XFS_DQTYPE_*
We're going to split up the incore dquot state flags from the ondisk
dquot flags (eventually renaming this "type") so start by renaming the
three flags and the bitmask that are going to participate in this.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
2020-07-28 20:24:14 -07:00

291 lines
6.5 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2008, Christoph Hellwig
* All Rights Reserved.
*/
#include "xfs.h"
#include "xfs_shared.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_icache.h"
#include "xfs_qm.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_def_quota *defq)
{
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_df.if_nextents;
tstate->spc_timelimit = (u32)defq->blk.time;
tstate->ino_timelimit = (u32)defq->ino.time;
tstate->rt_spc_timelimit = (u32)defq->rtb.time;
tstate->spc_warnlimit = defq->blk.warn;
tstate->ino_warnlimit = defq->ino.warn;
tstate->rt_spc_warnlimit = defq->rtb.warn;
if (tempqip)
xfs_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, &q->qi_usr_default);
xfs_qm_fill_state(&state->s_state[GRPQUOTA], mp, q->qi_gquotaip,
mp->m_sb.sb_gquotino, &q->qi_grp_default);
xfs_qm_fill_state(&state->s_state[PRJQUOTA], mp, q->qi_pquotaip,
mp->m_sb.sb_pquotino, &q->qi_prj_default);
return 0;
}
STATIC int
xfs_quota_type(int type)
{
switch (type) {
case USRQUOTA:
return XFS_DQTYPE_USER;
case GRPQUOTA:
return XFS_DQTYPE_GROUP;
default:
return XFS_DQTYPE_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_rdonly(sb))
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_rdonly(sb))
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_rdonly(sb))
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_rdonly(sb))
return -EROFS;
if (XFS_IS_QUOTA_ON(mp))
return -EINVAL;
if (uflags & ~(FS_USER_QUOTA | FS_GROUP_QUOTA | FS_PROJ_QUOTA))
return -EINVAL;
if (uflags & FS_USER_QUOTA)
flags |= XFS_QMOPT_UQUOTA;
if (uflags & FS_GROUP_QUOTA)
flags |= XFS_QMOPT_GQUOTA;
if (uflags & FS_PROJ_QUOTA)
flags |= XFS_QMOPT_PQUOTA;
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);
xfs_dqid_t id;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
if (!XFS_IS_QUOTA_ON(mp))
return -ESRCH;
id = from_kqid(&init_user_ns, qid);
return xfs_qm_scall_getquota(mp, id, xfs_quota_type(qid.type), qdq);
}
/* Return quota info for active quota >= this qid */
STATIC int
xfs_fs_get_nextdqblk(
struct super_block *sb,
struct kqid *qid,
struct qc_dqblk *qdq)
{
int ret;
struct xfs_mount *mp = XFS_M(sb);
xfs_dqid_t id;
if (!XFS_IS_QUOTA_RUNNING(mp))
return -ENOSYS;
if (!XFS_IS_QUOTA_ON(mp))
return -ESRCH;
id = from_kqid(&init_user_ns, *qid);
ret = xfs_qm_scall_getquota_next(mp, &id, xfs_quota_type(qid->type),
qdq);
if (ret)
return ret;
/* ID may be different, so convert back what we got */
*qid = make_kqid(current_user_ns(), qid->type, id);
return 0;
}
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_rdonly(sb))
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,
.get_nextdqblk = xfs_fs_get_nextdqblk,
.set_dqblk = xfs_fs_set_dqblk,
};