/*
-* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
-* Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved.
-*
-* This copyrighted material is made available to anyone wishing to use,
-* modify, copy, or redistribute it subject to the terms and conditions
-* of the GNU General Public License v.2.
-*/
+ * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
+ * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
+ *
+ * This copyrighted material is made available to anyone wishing to use,
+ * modify, copy, or redistribute it subject to the terms and conditions
+ * of the GNU General Public License v.2.
+ */
#ifndef __GFS2_ONDISK_DOT_H__
#define __GFS2_ONDISK_DOT_H__
+#include <linux/types.h>
+
#define GFS2_MAGIC 0x01161970
#define GFS2_BASIC_BLOCK 512
#define GFS2_BASIC_BLOCK_SHIFT 9
#define GFS2_FORMAT_LB 1000
#define GFS2_FORMAT_EA 1600
#define GFS2_FORMAT_ED 1700
-#define GFS2_FORMAT_UT 1300
#define GFS2_FORMAT_QC 1400
/* These are format numbers for entities contained in files */
#define GFS2_FORMAT_RI 1100
* An on-disk inode number
*/
-#define gfs2_inum_equal(ino1, ino2) \
- (((ino1)->no_formal_ino == (ino2)->no_formal_ino) && \
- ((ino1)->no_addr == (ino2)->no_addr))
-
struct gfs2_inum {
__be64 no_formal_ino;
__be64 no_addr;
#define GFS2_METATYPE_LB 12
#define GFS2_METATYPE_EA 10
#define GFS2_METATYPE_ED 11
-#define GFS2_METATYPE_UT 13
#define GFS2_METATYPE_QC 14
struct gfs2_meta_header {
char sb_lockproto[GFS2_LOCKNAME_LEN];
char sb_locktable[GFS2_LOCKNAME_LEN];
- /* In gfs1, quota and license dinodes followed */
+
+ struct gfs2_inum __pad3; /* Was quota inode in gfs1 */
+ struct gfs2_inum __pad4; /* Was licence inode in gfs1 */
+#define GFS2_HAS_UUID 1
+ __u8 sb_uuid[16]; /* The UUID, maybe 0 for backwards compat */
};
/*
#define GFS2_BLKST_FREE 0
#define GFS2_BLKST_USED 1
-#define GFS2_BLKST_INVALID 2
+#define GFS2_BLKST_UNLINKED 2
#define GFS2_BLKST_DINODE 3
#define GFS2_RGF_JOURNAL 0x00000001
__be32 rg_flags;
__be32 rg_free;
__be32 rg_dinodes;
+ __be32 __pad;
+ __be64 rg_igeneration;
- __u8 rg_reserved[92]; /* Several fields from gfs1 now reserved */
+ __u8 rg_reserved[80]; /* Several fields from gfs1 now reserved */
};
/*
+ * quota linked list: user quotas and group quotas form two separate
+ * singly linked lists. ll_next stores uids or gids of next quotas in the
+ * linked list.
+
+Given the uid/gid, how to calculate the quota file offsets for the corresponding
+gfs2_quota structures on disk:
+
+for user quotas, given uid,
+offset = uid * sizeof(struct gfs2_quota);
+
+for group quotas, given gid,
+offset = (gid * sizeof(struct gfs2_quota)) + sizeof(struct gfs2_quota);
+
+
+ uid:0 gid:0 uid:12 gid:12 uid:17 gid:17 uid:5142 gid:5142
++-------+-------+ +-------+-------+ +-------+- - - -+ +- - - -+-------+
+| valid | valid | :: | valid | valid | :: | valid | inval | :: | inval | valid |
++-------+-------+ +-------+-------+ +-------+- - - -+ +- - - -+-------+
+next:12 next:12 next:17 next:5142 next:NULL next:NULL
+ | | | | |<-- user quota list |
+ \______|___________/ \______|___________/ group quota list -->|
+ | | |
+ \__________________/ \_______________________________________/
+
+*/
+
+/*
* quota structure
*/
__be64 qu_limit;
__be64 qu_warn;
__be64 qu_value;
- __u8 qu_reserved[64];
+ __be32 qu_ll_next; /* location of next quota in list */
+ __u8 qu_reserved[60];
};
/*
#define DT2IF(dt) (((dt) << 12) & S_IFMT)
#define IF2DT(sif) (((sif) & S_IFMT) >> 12)
+enum {
+ gfs2fl_Jdata = 0,
+ gfs2fl_ExHash = 1,
+ gfs2fl_Unused = 2,
+ gfs2fl_EaIndirect = 3,
+ gfs2fl_Directio = 4,
+ gfs2fl_Immutable = 5,
+ gfs2fl_AppendOnly = 6,
+ gfs2fl_NoAtime = 7,
+ gfs2fl_Sync = 8,
+ gfs2fl_System = 9,
+ gfs2fl_TruncInProg = 29,
+ gfs2fl_InheritDirectio = 30,
+ gfs2fl_InheritJdata = 31,
+};
+
/* Dinode flags */
#define GFS2_DIF_JDATA 0x00000001
#define GFS2_DIF_EXHASH 0x00000002
*/
__be64 di_goal_meta; /* rgrp to alloc from next */
__be64 di_goal_data; /* data block goal */
- __u32 __pad[2];
+ __be64 di_generation; /* generation number for NFS */
__be32 di_flags; /* GFS2_DIF_... */
__be32 di_payload_format; /* GFS2_FORMAT_... */
struct gfs2_inum __pad4; /* Unused even in current gfs1 */
__be64 di_eattr; /* extended attribute block number */
+ __be32 di_atime_nsec; /* nsec portion of atime */
+ __be32 di_mtime_nsec; /* nsec portion of mtime */
+ __be32 di_ctime_nsec; /* nsec portion of ctime */
- __u8 di_reserved[56];
+ __u8 di_reserved[44];
};
/*
#define GFS2_EATYPE_UNUSED 0
#define GFS2_EATYPE_USR 1
#define GFS2_EATYPE_SYS 2
+#define GFS2_EATYPE_SECURITY 3
-#define GFS2_EATYPE_LAST 2
+#define GFS2_EATYPE_LAST 3
#define GFS2_EATYPE_VALID(x) ((x) <= GFS2_EATYPE_LAST)
#define GFS2_EAFLAG_LAST 0x01 /* last ea in block */
};
/*
- * Unlinked Tag
- * Describes an allocated inode that isn't linked into
- * the directory tree and might need to be deallocated.
- */
-
-#define GFS2_UTF_UNINIT 0x00000001
-
-struct gfs2_unlinked_tag {
- struct gfs2_inum ut_inum;
- __be32 ut_flags; /* GFS2_UTF_... */
- __u32 __pad;
-};
-
-/*
* Quota change
* Describes an allocation change for a particular
* user or group.
__be32 qc_id;
};
-#ifdef __KERNEL__
-/* Translation functions */
-
-extern void gfs2_inum_in(struct gfs2_inum *no, char *buf);
-extern void gfs2_inum_out(struct gfs2_inum *no, char *buf);
-extern void gfs2_sb_in(struct gfs2_sb *sb, char *buf);
-extern void gfs2_rindex_in(struct gfs2_rindex *ri, char *buf);
-extern void gfs2_rindex_out(struct gfs2_rindex *ri, char *buf);
-extern void gfs2_rgrp_in(struct gfs2_rgrp *rg, char *buf);
-extern void gfs2_rgrp_out(struct gfs2_rgrp *rg, char *buf);
-extern void gfs2_quota_in(struct gfs2_quota *qu, char *buf);
-extern void gfs2_quota_out(struct gfs2_quota *qu, char *buf);
-extern void gfs2_dinode_in(struct gfs2_dinode *di, char *buf);
-extern void gfs2_dinode_out(struct gfs2_dinode *di, char *buf);
-extern void gfs2_leaf_in(struct gfs2_leaf *lf, char *buf);
-extern void gfs2_ea_header_in(struct gfs2_ea_header *ea, char *buf);
-extern void gfs2_ea_header_out(struct gfs2_ea_header *ea, char *buf);
-extern void gfs2_log_header_in(struct gfs2_log_header *lh, char *buf);
-extern void gfs2_inum_range_in(struct gfs2_inum_range *ir, char *buf);
-extern void gfs2_inum_range_out(struct gfs2_inum_range *ir, char *buf);
-extern void gfs2_statfs_change_in(struct gfs2_statfs_change *sc, char *buf);
-extern void gfs2_statfs_change_out(struct gfs2_statfs_change *sc, char *buf);
-extern void gfs2_unlinked_tag_in(struct gfs2_unlinked_tag *ut, char *buf);
-extern void gfs2_unlinked_tag_out(struct gfs2_unlinked_tag *ut, char *buf);
-extern void gfs2_quota_change_in(struct gfs2_quota_change *qc, char *buf);
-
-/* Printing functions */
-
-extern void gfs2_inum_print(struct gfs2_inum *no);
-extern void gfs2_meta_header_print(struct gfs2_meta_header *mh);
-extern void gfs2_sb_print(struct gfs2_sb *sb);
-extern void gfs2_rindex_print(struct gfs2_rindex *ri);
-extern void gfs2_rgrp_print(struct gfs2_rgrp *rg);
-extern void gfs2_quota_print(struct gfs2_quota *qu);
-extern void gfs2_dinode_print(struct gfs2_dinode *di);
-extern void gfs2_dirent_print(struct gfs2_dirent *de, char *name);
-extern void gfs2_leaf_print(struct gfs2_leaf *lf);
-extern void gfs2_ea_header_print(struct gfs2_ea_header *ea, char *name);
-extern void gfs2_log_header_print(struct gfs2_log_header *lh);
-extern void gfs2_log_descriptor_print(struct gfs2_log_descriptor *ld);
-extern void gfs2_inum_range_print(struct gfs2_inum_range *ir);
-extern void gfs2_statfs_change_print(struct gfs2_statfs_change *sc);
-extern void gfs2_unlinked_tag_print(struct gfs2_unlinked_tag *ut);
-extern void gfs2_quota_change_print(struct gfs2_quota_change *qc);
-
-#endif /* __KERNEL__ */
+struct gfs2_quota_lvb {
+ __be32 qb_magic;
+ __u32 __pad;
+ __be64 qb_limit; /* Hard limit of # blocks to alloc */
+ __be64 qb_warn; /* Warn user when alloc is above this # */
+ __be64 qb_value; /* Current # blocks allocated */
+};
#endif /* __GFS2_ONDISK_DOT_H__ */
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