diff options
Diffstat (limited to 'include/uapi/linux/gfs2_ondisk.h')
| -rw-r--r-- | include/uapi/linux/gfs2_ondisk.h | 102 |
1 files changed, 90 insertions, 12 deletions
diff --git a/include/uapi/linux/gfs2_ondisk.h b/include/uapi/linux/gfs2_ondisk.h index b2de1f9a88d6..6ec4291bcc7a 100644 --- a/include/uapi/linux/gfs2_ondisk.h +++ b/include/uapi/linux/gfs2_ondisk.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. @@ -20,7 +21,7 @@ #define GFS2_MOUNT_LOCK 0 #define GFS2_LIVE_LOCK 1 -#define GFS2_TRANS_LOCK 2 +#define GFS2_FREEZE_LOCK 2 #define GFS2_RENAME_LOCK 3 #define GFS2_CONTROL_LOCK 4 #define GFS2_MOUNTED_LOCK 5 @@ -46,7 +47,7 @@ #define GFS2_FORMAT_DE 1200 #define GFS2_FORMAT_QU 1500 /* These are part of the superblock */ -#define GFS2_FORMAT_FS 1801 +#define GFS2_FORMAT_FS 1802 #define GFS2_FORMAT_MULTI 1900 /* @@ -170,6 +171,12 @@ struct gfs2_rindex { #define GFS2_RGF_NOALLOC 0x00000008 #define GFS2_RGF_TRIMMED 0x00000010 +struct gfs2_inode_lvb { + __be32 ri_magic; + __be32 __pad; + __be64 ri_generation_deleted; +}; + struct gfs2_rgrp_lvb { __be32 rl_magic; __be32 rl_flags; @@ -186,10 +193,19 @@ struct gfs2_rgrp { __be32 rg_flags; __be32 rg_free; __be32 rg_dinodes; - __be32 __pad; + union { + __be32 __pad; + __be32 rg_skip; /* Distance to the next rgrp in fs blocks */ + }; __be64 rg_igeneration; - - __u8 rg_reserved[80]; /* Several fields from gfs1 now reserved */ + /* The following 3 fields are duplicated from gfs2_rindex to reduce + reliance on the rindex */ + __be64 rg_data0; /* First data location */ + __be32 rg_data; /* Number of data blocks in rgrp */ + __be32 rg_bitbytes; /* Number of bytes in data bitmaps */ + __be32 rg_crc; /* crc32 of the structure with this field 0 */ + + __u8 rg_reserved[60]; /* Several fields from gfs1 now reserved */ }; /* @@ -297,6 +313,8 @@ struct gfs2_dinode { #define GFS2_FNAMESIZE 255 #define GFS2_DIRENT_SIZE(name_len) ((sizeof(struct gfs2_dirent) + (name_len) + 7) & ~7) +#define GFS2_MIN_DIRENT_SIZE (GFS2_DIRENT_SIZE(1)) + struct gfs2_dirent { struct gfs2_inum de_inum; @@ -304,7 +322,14 @@ struct gfs2_dirent { __be16 de_rec_len; __be16 de_name_len; __be16 de_type; - __u8 __pad[14]; + __be16 de_rahead; + union { + __u8 __pad[12]; + struct { + __u32 de_cookie; /* ondisk value not used */ + __u8 pad3[8]; + }; + }; }; /* @@ -319,7 +344,16 @@ struct gfs2_leaf { __be32 lf_dirent_format; /* Format of the dirents */ __be64 lf_next; /* Next leaf, if overflow */ - __u8 lf_reserved[64]; + union { + __u8 lf_reserved[64]; + struct { + __be64 lf_inode; /* Dir inode number */ + __be32 lf_dist; /* Dist from inode on chain */ + __be32 lf_nsec; /* Last ins/del usecs */ + __be64 lf_sec; /* Last ins/del in secs */ + __u8 lf_reserved2[40]; + }; + }; }; /* @@ -338,9 +372,9 @@ struct gfs2_leaf { * metadata header. Each inode, if it has extended attributes, will * have either a single block containing the extended attribute headers * or a single indirect block pointing to blocks containing the - * extended attribure headers. + * extended attribute headers. * - * The maximim size of the data part of an extended attribute is 64k + * The maximum size of the data part of an extended attribute is 64k * so the number of blocks required depends upon block size. Since the * block size also determines the number of pointers in an indirect * block, its a fairly complicated calculation to work out the maximum @@ -355,8 +389,9 @@ struct gfs2_leaf { #define GFS2_EATYPE_USR 1 #define GFS2_EATYPE_SYS 2 #define GFS2_EATYPE_SECURITY 3 +#define GFS2_EATYPE_TRUSTED 4 -#define GFS2_EATYPE_LAST 3 +#define GFS2_EATYPE_LAST 4 #define GFS2_EATYPE_VALID(x) ((x) <= GFS2_EATYPE_LAST) #define GFS2_EAFLAG_LAST 0x01 /* last ea in block */ @@ -375,7 +410,36 @@ struct gfs2_ea_header { * Log header structure */ -#define GFS2_LOG_HEAD_UNMOUNT 0x00000001 /* log is clean */ +#define GFS2_LOG_HEAD_UNMOUNT 0x00000001 /* log is clean */ +#define GFS2_LOG_HEAD_FLUSH_NORMAL 0x00000002 /* normal log flush */ +#define GFS2_LOG_HEAD_FLUSH_SYNC 0x00000004 /* Sync log flush */ +#define GFS2_LOG_HEAD_FLUSH_SHUTDOWN 0x00000008 /* Shutdown log flush */ +#define GFS2_LOG_HEAD_FLUSH_FREEZE 0x00000010 /* Freeze flush */ +#define GFS2_LOG_HEAD_RECOVERY 0x00000020 /* Journal recovery */ +#define GFS2_LOG_HEAD_USERSPACE 0x80000000 /* Written by gfs2-utils */ + +/* Log flush callers */ +#define GFS2_LFC_SHUTDOWN 0x00000100 +#define GFS2_LFC_JDATA_WPAGES 0x00000200 +#define GFS2_LFC_SET_FLAGS 0x00000400 +#define GFS2_LFC_AIL_EMPTY_GL 0x00000800 +#define GFS2_LFC_AIL_FLUSH 0x00001000 +#define GFS2_LFC_RGRP_GO_SYNC 0x00002000 +#define GFS2_LFC_INODE_GO_SYNC 0x00004000 +#define GFS2_LFC_INODE_GO_INVAL 0x00008000 +#define GFS2_LFC_FREEZE_GO_SYNC 0x00010000 +#define GFS2_LFC_KILL_SB 0x00020000 +#define GFS2_LFC_DO_SYNC 0x00040000 +#define GFS2_LFC_INPLACE_RESERVE 0x00080000 +#define GFS2_LFC_WRITE_INODE 0x00100000 +#define GFS2_LFC_MAKE_FS_RO 0x00200000 +#define GFS2_LFC_SYNC_FS 0x00400000 +#define GFS2_LFC_EVICT_INODE 0x00800000 +#define GFS2_LFC_TRANS_END 0x01000000 +#define GFS2_LFC_LOGD_JFLUSH_REQD 0x02000000 +#define GFS2_LFC_LOGD_AIL_FLUSH_REQD 0x04000000 + +#define LH_V1_SIZE (offsetofend(struct gfs2_log_header, lh_hash)) struct gfs2_log_header { struct gfs2_meta_header lh_header; @@ -384,7 +448,21 @@ struct gfs2_log_header { __be32 lh_flags; /* GFS2_LOG_HEAD_... */ __be32 lh_tail; /* Block number of log tail */ __be32 lh_blkno; - __be32 lh_hash; + __be32 lh_hash; /* crc up to here with this field 0 */ + + /* Version 2 additional fields start here */ + __be32 lh_crc; /* crc32c from lh_nsec to end of block */ + __be32 lh_nsec; /* Nanoseconds of timestamp */ + __be64 lh_sec; /* Seconds of timestamp */ + __be64 lh_addr; /* Block addr of this log header (absolute) */ + __be64 lh_jinode; /* Journal inode number */ + __be64 lh_statfs_addr; /* Local statfs inode number */ + __be64 lh_quota_addr; /* Local quota change inode number */ + + /* Statfs local changes (i.e. diff from global statfs) */ + __be64 lh_local_total; + __be64 lh_local_free; + __be64 lh_local_dinodes; }; /* |