forked from luck/tmp_suning_uos_patched
a05931ceb0
If we initialize the slab caches for the quota code when XFS is loaded there is no need for a global and reference counted quota manager structure. Drop all this overhead and also fix the error handling during quota initialization. Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Ben Myers <bpm@sgi.com>
126 lines
4.7 KiB
C
126 lines
4.7 KiB
C
/*
|
|
* Copyright (c) 2000-2005 Silicon Graphics, Inc.
|
|
* 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
|
|
*/
|
|
#ifndef __XFS_QM_H__
|
|
#define __XFS_QM_H__
|
|
|
|
#include "xfs_dquot_item.h"
|
|
#include "xfs_dquot.h"
|
|
#include "xfs_quota_priv.h"
|
|
|
|
struct xfs_inode;
|
|
|
|
extern struct kmem_zone *xfs_qm_dqtrxzone;
|
|
|
|
/*
|
|
* This defines the unit of allocation of dquots.
|
|
* Currently, it is just one file system block, and a 4K blk contains 30
|
|
* (136 * 30 = 4080) dquots. It's probably not worth trying to make
|
|
* this more dynamic.
|
|
* XXXsup However, if this number is changed, we have to make sure that we don't
|
|
* implicitly assume that we do allocations in chunks of a single filesystem
|
|
* block in the dquot/xqm code.
|
|
*/
|
|
#define XFS_DQUOT_CLUSTER_SIZE_FSB (xfs_filblks_t)1
|
|
|
|
/*
|
|
* Various quota information for individual filesystems.
|
|
* The mount structure keeps a pointer to this.
|
|
*/
|
|
typedef struct xfs_quotainfo {
|
|
struct radix_tree_root qi_uquota_tree;
|
|
struct radix_tree_root qi_gquota_tree;
|
|
struct mutex qi_tree_lock;
|
|
xfs_inode_t *qi_uquotaip; /* user quota inode */
|
|
xfs_inode_t *qi_gquotaip; /* group quota inode */
|
|
struct list_head qi_lru_list;
|
|
struct mutex qi_lru_lock;
|
|
int qi_lru_count;
|
|
int qi_dquots;
|
|
time_t qi_btimelimit; /* limit for blks timer */
|
|
time_t qi_itimelimit; /* limit for inodes timer */
|
|
time_t qi_rtbtimelimit;/* limit for rt blks timer */
|
|
xfs_qwarncnt_t qi_bwarnlimit; /* limit for blks warnings */
|
|
xfs_qwarncnt_t qi_iwarnlimit; /* limit for inodes warnings */
|
|
xfs_qwarncnt_t qi_rtbwarnlimit;/* limit for rt blks warnings */
|
|
struct mutex qi_quotaofflock;/* to serialize quotaoff */
|
|
xfs_filblks_t qi_dqchunklen; /* # BBs in a chunk of dqs */
|
|
uint qi_dqperchunk; /* # ondisk dqs in above chunk */
|
|
xfs_qcnt_t qi_bhardlimit; /* default data blk hard limit */
|
|
xfs_qcnt_t qi_bsoftlimit; /* default data blk soft limit */
|
|
xfs_qcnt_t qi_ihardlimit; /* default inode count hard limit */
|
|
xfs_qcnt_t qi_isoftlimit; /* default inode count soft limit */
|
|
xfs_qcnt_t qi_rtbhardlimit;/* default realtime blk hard limit */
|
|
xfs_qcnt_t qi_rtbsoftlimit;/* default realtime blk soft limit */
|
|
struct shrinker qi_shrinker;
|
|
} xfs_quotainfo_t;
|
|
|
|
#define XFS_DQUOT_TREE(qi, type) \
|
|
((type & XFS_DQ_USER) ? \
|
|
&((qi)->qi_uquota_tree) : \
|
|
&((qi)->qi_gquota_tree))
|
|
|
|
|
|
extern void xfs_trans_mod_dquot(xfs_trans_t *, xfs_dquot_t *, uint, long);
|
|
extern int xfs_trans_reserve_quota_bydquots(xfs_trans_t *, xfs_mount_t *,
|
|
xfs_dquot_t *, xfs_dquot_t *, long, long, uint);
|
|
extern void xfs_trans_dqjoin(xfs_trans_t *, xfs_dquot_t *);
|
|
extern void xfs_trans_log_dquot(xfs_trans_t *, xfs_dquot_t *);
|
|
|
|
/*
|
|
* We keep the usr and grp dquots separately so that locking will be easier
|
|
* to do at commit time. All transactions that we know of at this point
|
|
* affect no more than two dquots of one type. Hence, the TRANS_MAXDQS value.
|
|
*/
|
|
#define XFS_QM_TRANS_MAXDQS 2
|
|
typedef struct xfs_dquot_acct {
|
|
xfs_dqtrx_t dqa_usrdquots[XFS_QM_TRANS_MAXDQS];
|
|
xfs_dqtrx_t dqa_grpdquots[XFS_QM_TRANS_MAXDQS];
|
|
} xfs_dquot_acct_t;
|
|
|
|
/*
|
|
* Users are allowed to have a usage exceeding their softlimit for
|
|
* a period this long.
|
|
*/
|
|
#define XFS_QM_BTIMELIMIT (7 * 24*60*60) /* 1 week */
|
|
#define XFS_QM_RTBTIMELIMIT (7 * 24*60*60) /* 1 week */
|
|
#define XFS_QM_ITIMELIMIT (7 * 24*60*60) /* 1 week */
|
|
|
|
#define XFS_QM_BWARNLIMIT 5
|
|
#define XFS_QM_IWARNLIMIT 5
|
|
#define XFS_QM_RTBWARNLIMIT 5
|
|
|
|
extern void xfs_qm_destroy_quotainfo(xfs_mount_t *);
|
|
extern int xfs_qm_quotacheck(xfs_mount_t *);
|
|
extern int xfs_qm_write_sb_changes(xfs_mount_t *, __int64_t);
|
|
|
|
/* dquot stuff */
|
|
extern void xfs_qm_dqpurge_all(xfs_mount_t *, uint);
|
|
extern void xfs_qm_dqrele_all_inodes(xfs_mount_t *, uint);
|
|
|
|
/* quota ops */
|
|
extern int xfs_qm_scall_trunc_qfiles(xfs_mount_t *, uint);
|
|
extern int xfs_qm_scall_getquota(xfs_mount_t *, xfs_dqid_t, uint,
|
|
fs_disk_quota_t *);
|
|
extern int xfs_qm_scall_setqlim(xfs_mount_t *, xfs_dqid_t, uint,
|
|
fs_disk_quota_t *);
|
|
extern int xfs_qm_scall_getqstat(xfs_mount_t *, fs_quota_stat_t *);
|
|
extern int xfs_qm_scall_quotaon(xfs_mount_t *, uint);
|
|
extern int xfs_qm_scall_quotaoff(xfs_mount_t *, uint);
|
|
|
|
#endif /* __XFS_QM_H__ */
|