[net-next-2.6.git] / fs / xfs / linux-2.6 / xfs_quotaops.c

/*
 * 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_dmapi.h"
#include "xfs_sb.h"
#include "xfs_inum.h"
#include "xfs_log.h"
#include "xfs_ag.h"
#include "xfs_mount.h"
#include "xfs_quota.h"
#include "xfs_log.h"
#include "xfs_trans.h"
#include "xfs_bmap_btree.h"
#include "xfs_inode.h"
#include "quota/xfs_qm.h"
#include <linux/quota.h>


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;
	}
}

STATIC int
xfs_fs_get_xstate(
	struct super_block	*sb,
	struct fs_quota_stat	*fqs)
{
	struct xfs_mount	*mp = XFS_M(sb);

	if (!XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;
	return -xfs_qm_scall_getqstat(mp, fqs);
}

STATIC int
xfs_fs_set_xstate(
	struct super_block	*sb,
	unsigned int		uflags,
	int			op)
{
	struct xfs_mount	*mp = XFS_M(sb);
	unsigned int		flags = 0;

	if (sb->s_flags & MS_RDONLY)
		return -EROFS;
	if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
		return -ENOSYS;

	if (uflags & XFS_QUOTA_UDQ_ACCT)
		flags |= XFS_UQUOTA_ACCT;
	if (uflags & XFS_QUOTA_PDQ_ACCT)
		flags |= XFS_PQUOTA_ACCT;
	if (uflags & XFS_QUOTA_GDQ_ACCT)
		flags |= XFS_GQUOTA_ACCT;
	if (uflags & XFS_QUOTA_UDQ_ENFD)
		flags |= XFS_UQUOTA_ENFD;
	if (uflags & (XFS_QUOTA_PDQ_ENFD|XFS_QUOTA_GDQ_ENFD))
		flags |= XFS_OQUOTA_ENFD;

	switch (op) {
	case Q_XQUOTAON:
		return -xfs_qm_scall_quotaon(mp, flags);
	case Q_XQUOTAOFF:
		if (!XFS_IS_QUOTA_ON(mp))
			return -EINVAL;
		return -xfs_qm_scall_quotaoff(mp, flags);
	case Q_XQUOTARM:
		if (XFS_IS_QUOTA_ON(mp))
			return -EINVAL;
		return -xfs_qm_scall_trunc_qfiles(mp, flags);
	}

	return -EINVAL;
}

STATIC int
xfs_fs_get_dqblk(
	struct super_block	*sb,
	int			type,
	qid_t			id,
	struct fs_disk_quota	*fdq)
{
	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, id, xfs_quota_type(type), fdq);
}

STATIC int
xfs_fs_set_dqblk(
	struct super_block	*sb,
	int			type,
	qid_t			id,
	struct fs_disk_quota	*fdq)
{
	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, id, xfs_quota_type(type), fdq);
}

const struct quotactl_ops xfs_quotactl_operations = {
	.get_xstate		= xfs_fs_get_xstate,
	.set_xstate		= xfs_fs_set_xstate,
	.get_dqblk		= xfs_fs_get_dqblk,
	.set_dqblk		= xfs_fs_set_dqblk,
};
Commit	Line	Data
fcafb71b CH	1	/*
	2	* Copyright (c) 2008, Christoph Hellwig
	3	* All Rights Reserved.
	4	*
	5	* This program is free software; you can redistribute it and/or
	6	* modify it under the terms of the GNU General Public License as
	7	* published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope that it would be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	* GNU General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU General Public License
	15	* along with this program; if not, write the Free Software Foundation,
	16	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	17	*/
	18	#include "xfs.h"
	19	#include "xfs_dmapi.h"
	20	#include "xfs_sb.h"
	21	#include "xfs_inum.h"
ed3b4d6c	22	#include "xfs_log.h"
fcafb71b CH	23	#include "xfs_ag.h"
	24	#include "xfs_mount.h"
	25	#include "xfs_quota.h"
	26	#include "xfs_log.h"
	27	#include "xfs_trans.h"
	28	#include "xfs_bmap_btree.h"
	29	#include "xfs_inode.h"
	30	#include "quota/xfs_qm.h"
	31	#include <linux/quota.h>
	32
	33
	34	STATIC int
	35	xfs_quota_type(int type)
	36	{
	37	switch (type) {
	38	case USRQUOTA:
	39	return XFS_DQ_USER;
	40	case GRPQUOTA:
	41	return XFS_DQ_GROUP;
	42	default:
	43	return XFS_DQ_PROJ;
	44	}
	45	}
	46
fcafb71b CH	47	STATIC int
	48	xfs_fs_get_xstate(
	49	struct super_block *sb,
	50	struct fs_quota_stat *fqs)
	51	{
	52	struct xfs_mount *mp = XFS_M(sb);
	53
	54	if (!XFS_IS_QUOTA_RUNNING(mp))
	55	return -ENOSYS;
	56	return -xfs_qm_scall_getqstat(mp, fqs);
	57	}
	58
	59	STATIC int
	60	xfs_fs_set_xstate(
	61	struct super_block *sb,
	62	unsigned int uflags,
	63	int op)
	64	{
	65	struct xfs_mount *mp = XFS_M(sb);
	66	unsigned int flags = 0;
	67
	68	if (sb->s_flags & MS_RDONLY)
	69	return -EROFS;
c7ff91d7	70	if (op != Q_XQUOTARM && !XFS_IS_QUOTA_RUNNING(mp))
fcafb71b	71	return -ENOSYS;
fcafb71b CH	72
	73	if (uflags & XFS_QUOTA_UDQ_ACCT)
	74	flags \|= XFS_UQUOTA_ACCT;
	75	if (uflags & XFS_QUOTA_PDQ_ACCT)
	76	flags \|= XFS_PQUOTA_ACCT;
	77	if (uflags & XFS_QUOTA_GDQ_ACCT)
	78	flags \|= XFS_GQUOTA_ACCT;
	79	if (uflags & XFS_QUOTA_UDQ_ENFD)
	80	flags \|= XFS_UQUOTA_ENFD;
	81	if (uflags & (XFS_QUOTA_PDQ_ENFD\|XFS_QUOTA_GDQ_ENFD))
	82	flags \|= XFS_OQUOTA_ENFD;
	83
	84	switch (op) {
	85	case Q_XQUOTAON:
	86	return -xfs_qm_scall_quotaon(mp, flags);
	87	case Q_XQUOTAOFF:
	88	if (!XFS_IS_QUOTA_ON(mp))
	89	return -EINVAL;
	90	return -xfs_qm_scall_quotaoff(mp, flags);
	91	case Q_XQUOTARM:
	92	if (XFS_IS_QUOTA_ON(mp))
	93	return -EINVAL;
	94	return -xfs_qm_scall_trunc_qfiles(mp, flags);
	95	}
	96
	97	return -EINVAL;
	98	}
	99
	100	STATIC int
b9b2dd36	101	xfs_fs_get_dqblk(
fcafb71b CH	102	struct super_block *sb,
	103	int type,
	104	qid_t id,
	105	struct fs_disk_quota *fdq)
	106	{
	107	struct xfs_mount *mp = XFS_M(sb);
	108
	109	if (!XFS_IS_QUOTA_RUNNING(mp))
	110	return -ENOSYS;
	111	if (!XFS_IS_QUOTA_ON(mp))
	112	return -ESRCH;
	113
	114	return -xfs_qm_scall_getquota(mp, id, xfs_quota_type(type), fdq);
	115	}
	116
	117	STATIC int
c472b432	118	xfs_fs_set_dqblk(
fcafb71b CH	119	struct super_block *sb,
	120	int type,
	121	qid_t id,
	122	struct fs_disk_quota *fdq)
	123	{
	124	struct xfs_mount *mp = XFS_M(sb);
	125
	126	if (sb->s_flags & MS_RDONLY)
	127	return -EROFS;
	128	if (!XFS_IS_QUOTA_RUNNING(mp))
	129	return -ENOSYS;
	130	if (!XFS_IS_QUOTA_ON(mp))
	131	return -ESRCH;
fcafb71b CH	132
	133	return -xfs_qm_scall_setqlim(mp, id, xfs_quota_type(type), fdq);
	134	}
	135
0d54b217	136	const struct quotactl_ops xfs_quotactl_operations = {
fcafb71b CH	137	.get_xstate = xfs_fs_get_xstate,
fcafb71b CH	138	.set_xstate = xfs_fs_set_xstate,
b9b2dd36	139	.get_dqblk = xfs_fs_get_dqblk,
c472b432	140	.set_dqblk = xfs_fs_set_dqblk,
fcafb71b	141	};