xfs: remove subdirectories

Use the move from Linux 2.6 to Linux 3.x as an excuse to kill the
annoying subdirectories in the XFS source code.  Besides the large
amount of file rename the only changes are to the Makefile, a few
files including headers with the subdirectory prefix, and the binary
sysctl compat code that includes a header under fs/xfs/ from
kernel/.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 166 insertions, 0 deletions

diff --git a/fs/xfs/xfs_qm.h b/fs/xfs/xfs_qm.h
new file mode 100644
index 00000000000..43b9abe1052
--- /dev/null
+++ b/fs/xfs/xfs_qm.h
@@ -0,0 +1,166 @@
+/*
+ * 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"
+#include "xfs_qm_stats.h"
+
+struct xfs_qm;
+struct xfs_inode;
+
+extern uint		ndquot;
+extern struct mutex	xfs_Gqm_lock;
+extern struct xfs_qm	*xfs_Gqm;
+extern kmem_zone_t	*qm_dqzone;
+extern kmem_zone_t	*qm_dqtrxzone;
+
+/*
+ * Used in xfs_qm_sync called by xfs_sync to count the max times that it can
+ * iterate over the mountpt's dquot list in one call.
+ */
+#define XFS_QM_SYNC_MAX_RESTARTS	7
+
+/*
+ * Ditto, for xfs_qm_dqreclaim_one.
+ */
+#define XFS_QM_RECLAIM_MAX_RESTARTS	4
+
+/*
+ * Ideal ratio of free to in use dquots. Quota manager makes an attempt
+ * to keep this balance.
+ */
+#define XFS_QM_DQFREE_RATIO		2
+
+/*
+ * Dquot hashtable constants/threshold values.
+ */
+#define XFS_QM_HASHSIZE_LOW		(PAGE_SIZE / sizeof(xfs_dqhash_t))
+#define XFS_QM_HASHSIZE_HIGH		((PAGE_SIZE * 4) / sizeof(xfs_dqhash_t))
+
+/*
+ * 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
+
+typedef xfs_dqhash_t	xfs_dqlist_t;
+
+/*
+ * Quota Manager (global) structure. Lives only in core.
+ */
+typedef struct xfs_qm {
+	xfs_dqlist_t	*qm_usr_dqhtable;/* udquot hash table */
+	xfs_dqlist_t	*qm_grp_dqhtable;/* gdquot hash table */
+	uint		 qm_dqhashmask;	 /* # buckets in dq hashtab - 1 */
+	struct list_head qm_dqfrlist;	 /* freelist of dquots */
+	struct mutex	 qm_dqfrlist_lock;
+	int		 qm_dqfrlist_cnt;
+	atomic_t	 qm_totaldquots; /* total incore dquots */
+	uint		 qm_nrefs;	 /* file systems with quota on */
+	int		 qm_dqfree_ratio;/* ratio of free to inuse dquots */
+	kmem_zone_t	*qm_dqzone;	 /* dquot mem-alloc zone */
+	kmem_zone_t	*qm_dqtrxzone;	 /* t_dqinfo of transactions */
+} xfs_qm_t;
+
+/*
+ * Various quota information for individual filesystems.
+ * The mount structure keeps a pointer to this.
+ */
+typedef struct xfs_quotainfo {
+	xfs_inode_t	*qi_uquotaip;	 /* user quota inode */
+	xfs_inode_t	*qi_gquotaip;	 /* group quota inode */
+	struct list_head qi_dqlist;	 /* all dquots in filesys */
+	struct mutex	 qi_dqlist_lock;
+	int		 qi_dquots;
+	int		 qi_dqreclaims;	 /* a change here indicates
+					    a removal in the dqlist */
+	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 */
+} xfs_quotainfo_t;
+
+
+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 boolean_t	xfs_qm_dqalloc_incore(xfs_dquot_t **);
+extern int		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__ */