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diff --git a/fs/xfs/libxfs/xfs_quota_defs.h b/fs/xfs/libxfs/xfs_quota_defs.h
new file mode 100644
index 000000000000..137e20937077
--- /dev/null
+++ b/fs/xfs/libxfs/xfs_quota_defs.h
@@ -0,0 +1,161 @@
+/*
+ * 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_QUOTA_DEFS_H__
+#define __XFS_QUOTA_DEFS_H__
+
+/*
+ * Quota definitions shared between user and kernel source trees.
+ */
+
+/*
+ * Even though users may not have quota limits occupying all 64-bits,
+ * they may need 64-bit accounting. Hence, 64-bit quota-counters,
+ * and quota-limits. This is a waste in the common case, but hey ...
+ */
+typedef __uint64_t      xfs_qcnt_t;
+typedef __uint16_t      xfs_qwarncnt_t;
+
+/*
+ * flags for q_flags field in the dquot.
+ */
+#define XFS_DQ_USER             0x0001          /* a user quota */
+#define XFS_DQ_PROJ             0x0002          /* project quota */
+#define XFS_DQ_GROUP            0x0004          /* a group quota */
+#define XFS_DQ_DIRTY            0x0008          /* dquot is dirty */
+#define XFS_DQ_FREEING          0x0010          /* dquot is beeing torn down */
+
+#define XFS_DQ_ALLTYPES         (XFS_DQ_USER|XFS_DQ_PROJ|XFS_DQ_GROUP)
+
+#define XFS_DQ_FLAGS \
+        { XFS_DQ_USER,          "USER" }, \
+        { XFS_DQ_PROJ,          "PROJ" }, \
+        { XFS_DQ_GROUP,         "GROUP" }, \
+        { XFS_DQ_DIRTY,         "DIRTY" }, \
+        { XFS_DQ_FREEING,       "FREEING" }
+
+/*
+ * We have the possibility of all three quota types being active at once, and
+ * hence free space modification requires modification of all three current
+ * dquots in a single transaction. For this case we need to have a reservation
+ * of at least 3 dquots.
+ *
+ * However, a chmod operation can change both UID and GID in a single
+ * transaction, resulting in requiring {old, new} x {uid, gid} dquots to be
+ * modified. Hence for this case we need to reserve space for at least 4 dquots.
+ *
+ * And in the worst case, there's a rename operation that can be modifying up to
+ * 4 inodes with dquots attached to them. In reality, the only inodes that can
+ * have their dquots modified are the source and destination directory inodes
+ * due to directory name creation and removal. That can require space allocation
+ * and/or freeing on both directory inodes, and hence all three dquots on each
+ * inode can be modified. And if the directories are world writeable, all the
+ * dquots can be unique and so 6 dquots can be modified....
+ *
+ * And, of course, we also need to take into account the dquot log format item
+ * used to describe each dquot.
+ */
+#define XFS_DQUOT_LOGRES(mp)    \
+        ((sizeof(struct xfs_dq_logformat) + sizeof(struct xfs_disk_dquot)) * 6)
+
+#define XFS_IS_QUOTA_RUNNING(mp)        ((mp)->m_qflags & XFS_ALL_QUOTA_ACCT)
+#define XFS_IS_UQUOTA_RUNNING(mp)       ((mp)->m_qflags & XFS_UQUOTA_ACCT)
+#define XFS_IS_PQUOTA_RUNNING(mp)       ((mp)->m_qflags & XFS_PQUOTA_ACCT)
+#define XFS_IS_GQUOTA_RUNNING(mp)       ((mp)->m_qflags & XFS_GQUOTA_ACCT)
+#define XFS_IS_UQUOTA_ENFORCED(mp)      ((mp)->m_qflags & XFS_UQUOTA_ENFD)
+#define XFS_IS_GQUOTA_ENFORCED(mp)      ((mp)->m_qflags & XFS_GQUOTA_ENFD)
+#define XFS_IS_PQUOTA_ENFORCED(mp)      ((mp)->m_qflags & XFS_PQUOTA_ENFD)
+
+/*
+ * Incore only flags for quotaoff - these bits get cleared when quota(s)
+ * are in the process of getting turned off. These flags are in m_qflags but
+ * never in sb_qflags.
+ */
+#define XFS_UQUOTA_ACTIVE       0x1000  /* uquotas are being turned off */
+#define XFS_GQUOTA_ACTIVE       0x2000  /* gquotas are being turned off */
+#define XFS_PQUOTA_ACTIVE       0x4000  /* pquotas are being turned off */
+#define XFS_ALL_QUOTA_ACTIVE    \
+        (XFS_UQUOTA_ACTIVE | XFS_GQUOTA_ACTIVE | XFS_PQUOTA_ACTIVE)
+
+/*
+ * Checking XFS_IS_*QUOTA_ON() while holding any inode lock guarantees
+ * quota will be not be switched off as long as that inode lock is held.
+ */
+#define XFS_IS_QUOTA_ON(mp)     ((mp)->m_qflags & (XFS_UQUOTA_ACTIVE | \
+                                                   XFS_GQUOTA_ACTIVE | \
+                                                   XFS_PQUOTA_ACTIVE))
+#define XFS_IS_OQUOTA_ON(mp)    ((mp)->m_qflags & (XFS_GQUOTA_ACTIVE | \
+                                                   XFS_PQUOTA_ACTIVE))
+#define XFS_IS_UQUOTA_ON(mp)    ((mp)->m_qflags & XFS_UQUOTA_ACTIVE)
+#define XFS_IS_GQUOTA_ON(mp)    ((mp)->m_qflags & XFS_GQUOTA_ACTIVE)
+#define XFS_IS_PQUOTA_ON(mp)    ((mp)->m_qflags & XFS_PQUOTA_ACTIVE)
+
+/*
+ * Flags to tell various functions what to do. Not all of these are meaningful
+ * to a single function. None of these XFS_QMOPT_* flags are meant to have
+ * persistent values (ie. their values can and will change between versions)
+ */
+#define XFS_QMOPT_DQALLOC       0x0000002 /* alloc dquot ondisk if needed */
+#define XFS_QMOPT_UQUOTA        0x0000004 /* user dquot requested */
+#define XFS_QMOPT_PQUOTA        0x0000008 /* project dquot requested */
+#define XFS_QMOPT_FORCE_RES     0x0000010 /* ignore quota limits */
+#define XFS_QMOPT_SBVERSION     0x0000040 /* change superblock version num */
+#define XFS_QMOPT_DOWARN        0x0000400 /* increase warning cnt if needed */
+#define XFS_QMOPT_DQREPAIR      0x0001000 /* repair dquot if damaged */
+#define XFS_QMOPT_GQUOTA        0x0002000 /* group dquot requested */
+#define XFS_QMOPT_ENOSPC        0x0004000 /* enospc instead of edquot (prj) */
+
+/*
+ * flags to xfs_trans_mod_dquot to indicate which field needs to be
+ * modified.
+ */
+#define XFS_QMOPT_RES_REGBLKS   0x0010000
+#define XFS_QMOPT_RES_RTBLKS    0x0020000
+#define XFS_QMOPT_BCOUNT        0x0040000
+#define XFS_QMOPT_ICOUNT        0x0080000
+#define XFS_QMOPT_RTBCOUNT      0x0100000
+#define XFS_QMOPT_DELBCOUNT     0x0200000
+#define XFS_QMOPT_DELRTBCOUNT   0x0400000
+#define XFS_QMOPT_RES_INOS      0x0800000
+
+/*
+ * flags for dqalloc.
+ */
+#define XFS_QMOPT_INHERIT       0x1000000
+
+/*
+ * flags to xfs_trans_mod_dquot.
+ */
+#define XFS_TRANS_DQ_RES_BLKS   XFS_QMOPT_RES_REGBLKS
+#define XFS_TRANS_DQ_RES_RTBLKS XFS_QMOPT_RES_RTBLKS
+#define XFS_TRANS_DQ_RES_INOS   XFS_QMOPT_RES_INOS
+#define XFS_TRANS_DQ_BCOUNT     XFS_QMOPT_BCOUNT
+#define XFS_TRANS_DQ_DELBCOUNT  XFS_QMOPT_DELBCOUNT
+#define XFS_TRANS_DQ_ICOUNT     XFS_QMOPT_ICOUNT
+#define XFS_TRANS_DQ_RTBCOUNT   XFS_QMOPT_RTBCOUNT
+#define XFS_TRANS_DQ_DELRTBCOUNT XFS_QMOPT_DELRTBCOUNT
+
+
+#define XFS_QMOPT_QUOTALL       \
+                (XFS_QMOPT_UQUOTA | XFS_QMOPT_PQUOTA | XFS_QMOPT_GQUOTA)
+#define XFS_QMOPT_RESBLK_MASK   (XFS_QMOPT_RES_REGBLKS | XFS_QMOPT_RES_RTBLKS)
+
+extern int xfs_dqcheck(struct xfs_mount *mp, xfs_disk_dquot_t *ddq,
+                       xfs_dqid_t id, uint type, uint flags, char *str);
+extern int xfs_calc_dquots_per_chunk(unsigned int nbblks);
+
+#endif  /* __XFS_QUOTA_H__ */