+++ /dev/null
-/*
- * 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_H__
-#define __XFS_QUOTA_H__
-
-struct xfs_trans;
-
-/*
- * 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" }
-
-/*
- * In the worst case, when both user and group quotas are on,
- * we can have a max of three dquots changing in a single transaction.
- */
-#define XFS_DQUOT_LOGRES(mp) (sizeof(xfs_disk_dquot_t) * 3)
-
-#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_GQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_GQUOTA_ACCT)
-#define XFS_IS_PQUOTA_RUNNING(mp) ((mp)->m_qflags & XFS_PQUOTA_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 0x4000 /* gquotas are being turned off */
-#define XFS_PQUOTA_ACTIVE 0x2000 /* 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_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)
-
-#ifdef __KERNEL__
-/*
- * This check is done typically without holding the inode lock;
- * that may seem racy, but it is harmless in the context that it is used.
- * The inode cannot go inactive as long a reference is kept, and
- * therefore if dquot(s) were attached, they'll stay consistent.
- * If, for example, the ownership of the inode changes while
- * we didn't have the inode locked, the appropriate dquot(s) will be
- * attached atomically.
- */
-#define XFS_NOT_DQATTACHED(mp, ip) ((XFS_IS_UQUOTA_ON(mp) &&\
- (ip)->i_udquot == NULL) || \
- (XFS_IS_OQUOTA_ON(mp) && \
- (ip)->i_gdquot == NULL))
-
-#define XFS_QM_NEED_QUOTACHECK(mp) \
- ((XFS_IS_UQUOTA_ON(mp) && \
- (mp->m_sb.sb_qflags & XFS_UQUOTA_CHKD) == 0) || \
- (XFS_IS_GQUOTA_ON(mp) && \
- (mp->m_sb.sb_qflags & XFS_GQUOTA_CHKD) == 0) || \
- (XFS_IS_PQUOTA_ON(mp) && \
- (mp->m_sb.sb_qflags & XFS_PQUOTA_CHKD) == 0))
-
-/*
- * The structure kept inside the xfs_trans_t keep track of dquot changes
- * within a transaction and apply them later.
- */
-typedef struct xfs_dqtrx {
- struct xfs_dquot *qt_dquot; /* the dquot this refers to */
- ulong qt_blk_res; /* blks reserved on a dquot */
- ulong qt_blk_res_used; /* blks used from the reservation */
- ulong qt_ino_res; /* inode reserved on a dquot */
- ulong qt_ino_res_used; /* inodes used from the reservation */
- long qt_bcount_delta; /* dquot blk count changes */
- long qt_delbcnt_delta; /* delayed dquot blk count changes */
- long qt_icount_delta; /* dquot inode count changes */
- ulong qt_rtblk_res; /* # blks reserved on a dquot */
- ulong qt_rtblk_res_used;/* # blks used from reservation */
- long qt_rtbcount_delta;/* dquot realtime blk changes */
- long qt_delrtb_delta; /* delayed RT blk count changes */
-} xfs_dqtrx_t;
-
-#ifdef CONFIG_XFS_QUOTA
-extern void xfs_trans_dup_dqinfo(struct xfs_trans *, struct xfs_trans *);
-extern void xfs_trans_free_dqinfo(struct xfs_trans *);
-extern void xfs_trans_mod_dquot_byino(struct xfs_trans *, struct xfs_inode *,
- uint, long);
-extern void xfs_trans_apply_dquot_deltas(struct xfs_trans *);
-extern void xfs_trans_unreserve_and_mod_dquots(struct xfs_trans *);
-extern int xfs_trans_reserve_quota_nblks(struct xfs_trans *,
- struct xfs_inode *, long, long, uint);
-extern int xfs_trans_reserve_quota_bydquots(struct xfs_trans *,
- struct xfs_mount *, struct xfs_dquot *,
- struct xfs_dquot *, long, long, uint);
-
-extern int xfs_qm_vop_dqalloc(struct xfs_inode *, uid_t, gid_t, prid_t, uint,
- struct xfs_dquot **, struct xfs_dquot **);
-extern void xfs_qm_vop_create_dqattach(struct xfs_trans *, struct xfs_inode *,
- struct xfs_dquot *, struct xfs_dquot *);
-extern int xfs_qm_vop_rename_dqattach(struct xfs_inode **);
-extern struct xfs_dquot *xfs_qm_vop_chown(struct xfs_trans *,
- struct xfs_inode *, struct xfs_dquot **, struct xfs_dquot *);
-extern int xfs_qm_vop_chown_reserve(struct xfs_trans *, struct xfs_inode *,
- struct xfs_dquot *, struct xfs_dquot *, uint);
-extern int xfs_qm_dqattach(struct xfs_inode *, uint);
-extern int xfs_qm_dqattach_locked(struct xfs_inode *, uint);
-extern void xfs_qm_dqdetach(struct xfs_inode *);
-extern void xfs_qm_dqrele(struct xfs_dquot *);
-extern void xfs_qm_statvfs(struct xfs_inode *, struct kstatfs *);
-extern int xfs_qm_newmount(struct xfs_mount *, uint *, uint *);
-extern void xfs_qm_mount_quotas(struct xfs_mount *);
-extern void xfs_qm_unmount(struct xfs_mount *);
-extern void xfs_qm_unmount_quotas(struct xfs_mount *);
-
-#else
-static inline int
-xfs_qm_vop_dqalloc(struct xfs_inode *ip, uid_t uid, gid_t gid, prid_t prid,
- uint flags, struct xfs_dquot **udqp, struct xfs_dquot **gdqp)
-{
- *udqp = NULL;
- *gdqp = NULL;
- return 0;
-}
-#define xfs_trans_dup_dqinfo(tp, tp2)
-#define xfs_trans_free_dqinfo(tp)
-#define xfs_trans_mod_dquot_byino(tp, ip, fields, delta)
-#define xfs_trans_apply_dquot_deltas(tp)
-#define xfs_trans_unreserve_and_mod_dquots(tp)
-static inline int xfs_trans_reserve_quota_nblks(struct xfs_trans *tp,
- struct xfs_inode *ip, long nblks, long ninos, uint flags)
-{
- return 0;
-}
-static inline int xfs_trans_reserve_quota_bydquots(struct xfs_trans *tp,
- struct xfs_mount *mp, struct xfs_dquot *udqp,
- struct xfs_dquot *gdqp, long nblks, long nions, uint flags)
-{
- return 0;
-}
-#define xfs_qm_vop_create_dqattach(tp, ip, u, g)
-#define xfs_qm_vop_rename_dqattach(it) (0)
-#define xfs_qm_vop_chown(tp, ip, old, new) (NULL)
-#define xfs_qm_vop_chown_reserve(tp, ip, u, g, fl) (0)
-#define xfs_qm_dqattach(ip, fl) (0)
-#define xfs_qm_dqattach_locked(ip, fl) (0)
-#define xfs_qm_dqdetach(ip)
-#define xfs_qm_dqrele(d)
-#define xfs_qm_statvfs(ip, s)
-#define xfs_qm_newmount(mp, a, b) (0)
-#define xfs_qm_mount_quotas(mp)
-#define xfs_qm_unmount(mp)
-#define xfs_qm_unmount_quotas(mp)
-#endif /* CONFIG_XFS_QUOTA */
-
-#define xfs_trans_unreserve_quota_nblks(tp, ip, nblks, ninos, flags) \
- xfs_trans_reserve_quota_nblks(tp, ip, -(nblks), -(ninos), flags)
-#define xfs_trans_reserve_quota(tp, mp, ud, gd, nb, ni, f) \
- xfs_trans_reserve_quota_bydquots(tp, mp, ud, gd, nb, ni, \
- f | XFS_QMOPT_RES_REGBLKS)
-
-extern int xfs_qm_dqcheck(struct xfs_mount *, xfs_disk_dquot_t *,
- xfs_dqid_t, uint, uint, char *);
-extern int xfs_mount_reset_sbqflags(struct xfs_mount *);
-
-extern const struct xfs_buf_ops xfs_dquot_buf_ops;
-
-#endif /* __KERNEL__ */
-#endif /* __XFS_QUOTA_H__ */
--- /dev/null
+/*
+ * 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)
+
+#endif /* __XFS_QUOTA_H__ */
projects / thirdparty / xfsprogs-dev.git / commitdiff
