1 /* -*- mode: c; c-basic-offset: 8; -*-
2 * vim: noexpandtab sw=8 ts=8 sts=0:
6 * On-disk structures for OCFS2.
8 * Copyright (C) 2002, 2004 Oracle. All rights reserved.
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public
12 * License, version 2, as published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public
20 * License along with this program; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 021110-1307, USA.
29 #define OCFS2_MAJOR_REV_LEVEL 0
30 #define OCFS2_MINOR_REV_LEVEL 90
33 * An OCFS2 volume starts this way:
34 * Sector 0: Valid ocfs1_vol_disk_hdr that cleanly fails to mount OCFS.
35 * Sector 1: Valid ocfs1_vol_label that cleanly fails to mount OCFS.
36 * Block OCFS2_SUPER_BLOCK_BLKNO: OCFS2 superblock.
38 * All other structures are found from the superblock information.
40 * OCFS2_SUPER_BLOCK_BLKNO is in blocks, not sectors. eg, for a
41 * blocksize of 2K, it is 4096 bytes into disk.
43 #define OCFS2_SUPER_BLOCK_BLKNO 2
46 * Cluster size limits. The maximum is kept arbitrarily at 1 MB, and could
49 #define OCFS2_MIN_CLUSTERSIZE 4096
50 #define OCFS2_MAX_CLUSTERSIZE 1048576
53 * Blocks cannot be bigger than clusters, so the maximum blocksize is the
54 * minimum cluster size.
56 #define OCFS2_MIN_BLOCKSIZE 512
57 #define OCFS2_MAX_BLOCKSIZE OCFS2_MIN_CLUSTERSIZE
59 /* Filesystem magic number */
60 #define OCFS2_SUPER_MAGIC 0x7461636f
62 /* Object signatures */
63 #define OCFS2_SUPER_BLOCK_SIGNATURE "OCFSV2"
64 #define OCFS2_INODE_SIGNATURE "INODE01"
65 #define OCFS2_EXTENT_BLOCK_SIGNATURE "EXBLK01"
66 #define OCFS2_GROUP_DESC_SIGNATURE "GROUP01"
68 /* Compatibility flags */
69 #define OCFS2_HAS_COMPAT_FEATURE(sb,mask) \
70 ( OCFS2_SB(sb)->s_feature_compat & (mask) )
71 #define OCFS2_HAS_RO_COMPAT_FEATURE(sb,mask) \
72 ( OCFS2_SB(sb)->s_feature_ro_compat & (mask) )
73 #define OCFS2_HAS_INCOMPAT_FEATURE(sb,mask) \
74 ( OCFS2_SB(sb)->s_feature_incompat & (mask) )
75 #define OCFS2_SET_COMPAT_FEATURE(sb,mask) \
76 OCFS2_SB(sb)->s_feature_compat |= (mask)
77 #define OCFS2_SET_RO_COMPAT_FEATURE(sb,mask) \
78 OCFS2_SB(sb)->s_feature_ro_compat |= (mask)
79 #define OCFS2_SET_INCOMPAT_FEATURE(sb,mask) \
80 OCFS2_SB(sb)->s_feature_incompat |= (mask)
81 #define OCFS2_CLEAR_COMPAT_FEATURE(sb,mask) \
82 OCFS2_SB(sb)->s_feature_compat &= ~(mask)
83 #define OCFS2_CLEAR_RO_COMPAT_FEATURE(sb,mask) \
84 OCFS2_SB(sb)->s_feature_ro_compat &= ~(mask)
85 #define OCFS2_CLEAR_INCOMPAT_FEATURE(sb,mask) \
86 OCFS2_SB(sb)->s_feature_incompat &= ~(mask)
88 #define OCFS2_FEATURE_COMPAT_SUPP 0
89 #define OCFS2_FEATURE_INCOMPAT_SUPP OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT
90 #define OCFS2_FEATURE_RO_COMPAT_SUPP 0
93 * Heartbeat-only devices are missing journals and other files. The
94 * filesystem driver can't load them, but the library can. Never put
95 * this in OCFS2_FEATURE_INCOMPAT_SUPP, *ever*.
97 #define OCFS2_FEATURE_INCOMPAT_HEARTBEAT_DEV 0x0002
100 /* Used to denote a non-clustered volume */
101 #define OCFS2_FEATURE_INCOMPAT_LOCAL_MOUNT 0x0008
104 * Flags on ocfs2_dinode.i_flags
106 #define OCFS2_VALID_FL (0x00000001) /* Inode is valid */
107 #define OCFS2_UNUSED2_FL (0x00000002)
108 #define OCFS2_ORPHANED_FL (0x00000004) /* On the orphan list */
109 #define OCFS2_UNUSED3_FL (0x00000008)
110 /* System inode flags */
111 #define OCFS2_SYSTEM_FL (0x00000010) /* System inode */
112 #define OCFS2_SUPER_BLOCK_FL (0x00000020) /* Super block */
113 #define OCFS2_LOCAL_ALLOC_FL (0x00000040) /* Slot local alloc bitmap */
114 #define OCFS2_BITMAP_FL (0x00000080) /* Allocation bitmap */
115 #define OCFS2_JOURNAL_FL (0x00000100) /* Slot local journal */
116 #define OCFS2_HEARTBEAT_FL (0x00000200) /* Heartbeat area */
117 #define OCFS2_CHAIN_FL (0x00000400) /* Chain allocator */
118 #define OCFS2_DEALLOC_FL (0x00000800) /* Truncate log */
120 /* Inode attributes, keep in sync with EXT2 */
121 #define OCFS2_SECRM_FL (0x00000001) /* Secure deletion */
122 #define OCFS2_UNRM_FL (0x00000002) /* Undelete */
123 #define OCFS2_COMPR_FL (0x00000004) /* Compress file */
124 #define OCFS2_SYNC_FL (0x00000008) /* Synchronous updates */
125 #define OCFS2_IMMUTABLE_FL (0x00000010) /* Immutable file */
126 #define OCFS2_APPEND_FL (0x00000020) /* writes to file may only append */
127 #define OCFS2_NODUMP_FL (0x00000040) /* do not dump file */
128 #define OCFS2_NOATIME_FL (0x00000080) /* do not update atime */
129 #define OCFS2_DIRSYNC_FL (0x00010000) /* dirsync behaviour (directories only) */
131 #define OCFS2_FL_VISIBLE (0x000100FF) /* User visible flags */
132 #define OCFS2_FL_MODIFIABLE (0x000100FF) /* User modifiable flags */
137 #define OCFS2_IOC_GETFLAGS _IOR('f', 1, long)
138 #define OCFS2_IOC_SETFLAGS _IOW('f', 2, long)
141 * Journal Flags (ocfs2_dinode.id1.journal1.i_flags)
143 #define OCFS2_JOURNAL_DIRTY_FL (0x00000001) /* Journal needs recovery */
146 * superblock s_state flags
148 #define OCFS2_ERROR_FS (0x00000001) /* FS saw errors */
150 /* Limit of space in ocfs2_dir_entry */
151 #define OCFS2_MAX_FILENAME_LEN 255
153 /* Maximum slots on an ocfs2 file system */
154 #define OCFS2_MAX_SLOTS 255
156 /* Slot map indicator for an empty slot */
157 #define OCFS2_INVALID_SLOT -1
159 #define OCFS2_VOL_UUID_LEN 16
160 #define OCFS2_MAX_VOL_LABEL_LEN 64
162 /* Journal limits (in bytes) */
163 #define OCFS2_MIN_JOURNAL_SIZE (4 * 1024 * 1024)
165 struct ocfs2_system_inode_info {
171 /* System file index */
173 BAD_BLOCK_SYSTEM_INODE = 0,
174 GLOBAL_INODE_ALLOC_SYSTEM_INODE,
175 SLOT_MAP_SYSTEM_INODE,
176 #define OCFS2_FIRST_ONLINE_SYSTEM_INODE SLOT_MAP_SYSTEM_INODE
177 HEARTBEAT_SYSTEM_INODE,
178 GLOBAL_BITMAP_SYSTEM_INODE,
179 #define OCFS2_LAST_GLOBAL_SYSTEM_INODE GLOBAL_BITMAP_SYSTEM_INODE
180 ORPHAN_DIR_SYSTEM_INODE,
181 EXTENT_ALLOC_SYSTEM_INODE,
182 INODE_ALLOC_SYSTEM_INODE,
183 JOURNAL_SYSTEM_INODE,
184 LOCAL_ALLOC_SYSTEM_INODE,
185 TRUNCATE_LOG_SYSTEM_INODE,
189 static struct ocfs2_system_inode_info ocfs2_system_inodes[NUM_SYSTEM_INODES] = {
190 /* Global system inodes (single copy) */
191 /* The first two are only used from userspace mfks/tunefs */
192 [BAD_BLOCK_SYSTEM_INODE] = { "bad_blocks", 0, S_IFREG | 0644 },
193 [GLOBAL_INODE_ALLOC_SYSTEM_INODE] = { "global_inode_alloc", OCFS2_BITMAP_FL | OCFS2_CHAIN_FL, S_IFREG | 0644 },
195 /* These are used by the running filesystem */
196 [SLOT_MAP_SYSTEM_INODE] = { "slot_map", 0, S_IFREG | 0644 },
197 [HEARTBEAT_SYSTEM_INODE] = { "heartbeat", OCFS2_HEARTBEAT_FL, S_IFREG | 0644 },
198 [GLOBAL_BITMAP_SYSTEM_INODE] = { "global_bitmap", 0, S_IFREG | 0644 },
200 /* Slot-specific system inodes (one copy per slot) */
201 [ORPHAN_DIR_SYSTEM_INODE] = { "orphan_dir:%04d", 0, S_IFDIR | 0755 },
202 [EXTENT_ALLOC_SYSTEM_INODE] = { "extent_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_CHAIN_FL, S_IFREG | 0644 },
203 [INODE_ALLOC_SYSTEM_INODE] = { "inode_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_CHAIN_FL, S_IFREG | 0644 },
204 [JOURNAL_SYSTEM_INODE] = { "journal:%04d", OCFS2_JOURNAL_FL, S_IFREG | 0644 },
205 [LOCAL_ALLOC_SYSTEM_INODE] = { "local_alloc:%04d", OCFS2_BITMAP_FL | OCFS2_LOCAL_ALLOC_FL, S_IFREG | 0644 },
206 [TRUNCATE_LOG_SYSTEM_INODE] = { "truncate_log:%04d", OCFS2_DEALLOC_FL, S_IFREG | 0644 }
209 /* Parameter passed from mount.ocfs2 to module */
210 #define OCFS2_HB_NONE "heartbeat=none"
211 #define OCFS2_HB_LOCAL "heartbeat=local"
214 * OCFS2 directory file types. Only the low 3 bits are used. The
215 * other bits are reserved for now.
217 #define OCFS2_FT_UNKNOWN 0
218 #define OCFS2_FT_REG_FILE 1
219 #define OCFS2_FT_DIR 2
220 #define OCFS2_FT_CHRDEV 3
221 #define OCFS2_FT_BLKDEV 4
222 #define OCFS2_FT_FIFO 5
223 #define OCFS2_FT_SOCK 6
224 #define OCFS2_FT_SYMLINK 7
226 #define OCFS2_FT_MAX 8
229 * OCFS2_DIR_PAD defines the directory entries boundaries
231 * NOTE: It must be a multiple of 4
233 #define OCFS2_DIR_PAD 4
234 #define OCFS2_DIR_ROUND (OCFS2_DIR_PAD - 1)
235 #define OCFS2_DIR_MEMBER_LEN offsetof(struct ocfs2_dir_entry, name)
236 #define OCFS2_DIR_REC_LEN(name_len) (((name_len) + OCFS2_DIR_MEMBER_LEN + \
240 #define OCFS2_LINK_MAX 32000
243 static unsigned char ocfs2_type_by_mode[S_IFMT >> S_SHIFT] = {
244 [S_IFREG >> S_SHIFT] = OCFS2_FT_REG_FILE,
245 [S_IFDIR >> S_SHIFT] = OCFS2_FT_DIR,
246 [S_IFCHR >> S_SHIFT] = OCFS2_FT_CHRDEV,
247 [S_IFBLK >> S_SHIFT] = OCFS2_FT_BLKDEV,
248 [S_IFIFO >> S_SHIFT] = OCFS2_FT_FIFO,
249 [S_IFSOCK >> S_SHIFT] = OCFS2_FT_SOCK,
250 [S_IFLNK >> S_SHIFT] = OCFS2_FT_SYMLINK,
257 #define OCFS2_RAW_SB(dinode) (&((dinode)->id2.i_super))
260 * On disk extent record for OCFS2
261 * It describes a range of clusters on disk.
263 struct ocfs2_extent_rec {
264 /*00*/ __le32 e_cpos; /* Offset into the file, in clusters */
265 __le32 e_clusters; /* Clusters covered by this extent */
266 __le64 e_blkno; /* Physical disk offset, in blocks */
270 struct ocfs2_chain_rec {
271 __le32 c_free; /* Number of free bits in this chain. */
272 __le32 c_total; /* Number of total bits in this chain */
273 __le64 c_blkno; /* Physical disk offset (blocks) of 1st group */
276 struct ocfs2_truncate_rec {
277 __le32 t_start; /* 1st cluster in this log */
278 __le32 t_clusters; /* Number of total clusters covered */
282 * On disk extent list for OCFS2 (node in the tree). Note that this
283 * is contained inside ocfs2_dinode or ocfs2_extent_block, so the
284 * offsets are relative to ocfs2_dinode.id2.i_list or
285 * ocfs2_extent_block.h_list, respectively.
287 struct ocfs2_extent_list {
288 /*00*/ __le16 l_tree_depth; /* Extent tree depth from this
289 point. 0 means data extents
290 hang directly off this
292 __le16 l_count; /* Number of extent records */
293 __le16 l_next_free_rec; /* Next unused extent slot */
295 __le64 l_reserved2; /* Pad to
296 sizeof(ocfs2_extent_rec) */
297 /*10*/ struct ocfs2_extent_rec l_recs[0]; /* Extent records */
301 * On disk allocation chain list for OCFS2. Note that this is
302 * contained inside ocfs2_dinode, so the offsets are relative to
303 * ocfs2_dinode.id2.i_chain.
305 struct ocfs2_chain_list {
306 /*00*/ __le16 cl_cpg; /* Clusters per Block Group */
307 __le16 cl_bpc; /* Bits per cluster */
308 __le16 cl_count; /* Total chains in this list */
309 __le16 cl_next_free_rec; /* Next unused chain slot */
311 /*10*/ struct ocfs2_chain_rec cl_recs[0]; /* Chain records */
315 * On disk deallocation log for OCFS2. Note that this is
316 * contained inside ocfs2_dinode, so the offsets are relative to
317 * ocfs2_dinode.id2.i_dealloc.
319 struct ocfs2_truncate_log {
320 /*00*/ __le16 tl_count; /* Total records in this log */
321 __le16 tl_used; /* Number of records in use */
323 /*08*/ struct ocfs2_truncate_rec tl_recs[0]; /* Truncate records */
327 * On disk extent block (indirect block) for OCFS2
329 struct ocfs2_extent_block
331 /*00*/ __u8 h_signature[8]; /* Signature for verification */
333 /*10*/ __le16 h_suballoc_slot; /* Slot suballocator this
334 extent_header belongs to */
335 __le16 h_suballoc_bit; /* Bit offset in suballocator
337 __le32 h_fs_generation; /* Must match super block */
338 __le64 h_blkno; /* Offset on disk, in blocks */
339 /*20*/ __le64 h_reserved3;
340 __le64 h_next_leaf_blk; /* Offset on disk, in blocks,
341 of next leaf header pointing
343 /*30*/ struct ocfs2_extent_list h_list; /* Extent record list */
344 /* Actual on-disk size is one block */
348 * On disk superblock for OCFS2
349 * Note that it is contained inside an ocfs2_dinode, so all offsets
350 * are relative to the start of ocfs2_dinode.id2.
352 struct ocfs2_super_block {
353 /*00*/ __le16 s_major_rev_level;
354 __le16 s_minor_rev_level;
356 __le16 s_max_mnt_count;
357 __le16 s_state; /* File system state */
358 __le16 s_errors; /* Behaviour when detecting errors */
359 __le32 s_checkinterval; /* Max time between checks */
360 /*10*/ __le64 s_lastcheck; /* Time of last check */
361 __le32 s_creator_os; /* OS */
362 __le32 s_feature_compat; /* Compatible feature set */
363 /*20*/ __le32 s_feature_incompat; /* Incompatible feature set */
364 __le32 s_feature_ro_compat; /* Readonly-compatible feature set */
365 __le64 s_root_blkno; /* Offset, in blocks, of root directory
367 /*30*/ __le64 s_system_dir_blkno; /* Offset, in blocks, of system
369 __le32 s_blocksize_bits; /* Blocksize for this fs */
370 __le32 s_clustersize_bits; /* Clustersize for this fs */
371 /*40*/ __le16 s_max_slots; /* Max number of simultaneous mounts
372 before tunefs required */
375 __le64 s_first_cluster_group; /* Block offset of 1st cluster
377 /*50*/ __u8 s_label[OCFS2_MAX_VOL_LABEL_LEN]; /* Label for mounting, etc. */
378 /*90*/ __u8 s_uuid[OCFS2_VOL_UUID_LEN]; /* 128-bit uuid */
383 * Local allocation bitmap for OCFS2 slots
384 * Note that it exists inside an ocfs2_dinode, so all offsets are
385 * relative to the start of ocfs2_dinode.id2.
387 struct ocfs2_local_alloc
389 /*00*/ __le32 la_bm_off; /* Starting bit offset in main bitmap */
390 __le16 la_size; /* Size of included bitmap, in bytes */
393 /*10*/ __u8 la_bitmap[0];
397 * On disk inode for OCFS2
399 struct ocfs2_dinode {
400 /*00*/ __u8 i_signature[8]; /* Signature for validation */
401 __le32 i_generation; /* Generation number */
402 __le16 i_suballoc_slot; /* Slot suballocator this inode
404 __le16 i_suballoc_bit; /* Bit offset in suballocator
406 /*10*/ __le32 i_reserved0;
407 __le32 i_clusters; /* Cluster count */
408 __le32 i_uid; /* Owner UID */
409 __le32 i_gid; /* Owning GID */
410 /*20*/ __le64 i_size; /* Size in bytes */
411 __le16 i_mode; /* File mode */
412 __le16 i_links_count; /* Links count */
413 __le32 i_flags; /* File flags */
414 /*30*/ __le64 i_atime; /* Access time */
415 __le64 i_ctime; /* Creation time */
416 /*40*/ __le64 i_mtime; /* Modification time */
417 __le64 i_dtime; /* Deletion time */
418 /*50*/ __le64 i_blkno; /* Offset on disk, in blocks */
419 __le64 i_last_eb_blk; /* Pointer to last extent
421 /*60*/ __le32 i_fs_generation; /* Generation per fs-instance */
427 /*70*/ __le64 i_reserved2[8];
429 __le64 i_pad1; /* Generic way to refer to this
432 __le64 i_rdev; /* Device number */
434 struct { /* Info for bitmap system
436 __le32 i_used; /* Bits (ie, clusters) used */
437 __le32 i_total; /* Total bits (clusters)
440 struct { /* Info for journal system
442 __le32 ij_flags; /* Mounted, version, etc. */
445 } id1; /* Inode type dependant 1 */
447 struct ocfs2_super_block i_super;
448 struct ocfs2_local_alloc i_lab;
449 struct ocfs2_chain_list i_chain;
450 struct ocfs2_extent_list i_list;
451 struct ocfs2_truncate_log i_dealloc;
454 /* Actual on-disk size is one block */
458 * On-disk directory entry structure for OCFS2
460 * Packed as this structure could be accessed unaligned on 64-bit platforms
462 struct ocfs2_dir_entry {
463 /*00*/ __le64 inode; /* Inode number */
464 __le16 rec_len; /* Directory entry length */
465 __u8 name_len; /* Name length */
467 /*0C*/ char name[OCFS2_MAX_FILENAME_LEN]; /* File name */
468 /* Actual on-disk length specified by rec_len */
469 } __attribute__ ((packed));
472 * On disk allocator group structure for OCFS2
474 struct ocfs2_group_desc
476 /*00*/ __u8 bg_signature[8]; /* Signature for validation */
477 __le16 bg_size; /* Size of included bitmap in
479 __le16 bg_bits; /* Bits represented by this
481 __le16 bg_free_bits_count; /* Free bits count */
482 __le16 bg_chain; /* What chain I am in. */
483 /*10*/ __le32 bg_generation;
485 __le64 bg_next_group; /* Next group in my list, in
487 /*20*/ __le64 bg_parent_dinode; /* dinode which owns me, in
489 __le64 bg_blkno; /* Offset on disk, in blocks */
490 /*30*/ __le64 bg_reserved2[2];
491 /*40*/ __u8 bg_bitmap[0];
495 static inline int ocfs2_fast_symlink_chars(struct super_block *sb)
497 return sb->s_blocksize -
498 offsetof(struct ocfs2_dinode, id2.i_symlink);
501 static inline int ocfs2_extent_recs_per_inode(struct super_block *sb)
505 size = sb->s_blocksize -
506 offsetof(struct ocfs2_dinode, id2.i_list.l_recs);
508 return size / sizeof(struct ocfs2_extent_rec);
511 static inline int ocfs2_chain_recs_per_inode(struct super_block *sb)
515 size = sb->s_blocksize -
516 offsetof(struct ocfs2_dinode, id2.i_chain.cl_recs);
518 return size / sizeof(struct ocfs2_chain_rec);
521 static inline u16 ocfs2_extent_recs_per_eb(struct super_block *sb)
525 size = sb->s_blocksize -
526 offsetof(struct ocfs2_extent_block, h_list.l_recs);
528 return size / sizeof(struct ocfs2_extent_rec);
531 static inline u16 ocfs2_local_alloc_size(struct super_block *sb)
535 size = sb->s_blocksize -
536 offsetof(struct ocfs2_dinode, id2.i_lab.la_bitmap);
541 static inline int ocfs2_group_bitmap_size(struct super_block *sb)
545 size = sb->s_blocksize -
546 offsetof(struct ocfs2_group_desc, bg_bitmap);
551 static inline int ocfs2_truncate_recs_per_inode(struct super_block *sb)
555 size = sb->s_blocksize -
556 offsetof(struct ocfs2_dinode, id2.i_dealloc.tl_recs);
558 return size / sizeof(struct ocfs2_truncate_rec);
561 static inline int ocfs2_fast_symlink_chars(int blocksize)
563 return blocksize - offsetof(struct ocfs2_dinode, id2.i_symlink);
566 static inline int ocfs2_extent_recs_per_inode(int blocksize)
571 offsetof(struct ocfs2_dinode, id2.i_list.l_recs);
573 return size / sizeof(struct ocfs2_extent_rec);
576 static inline int ocfs2_chain_recs_per_inode(int blocksize)
581 offsetof(struct ocfs2_dinode, id2.i_chain.cl_recs);
583 return size / sizeof(struct ocfs2_chain_rec);
586 static inline int ocfs2_extent_recs_per_eb(int blocksize)
591 offsetof(struct ocfs2_extent_block, h_list.l_recs);
593 return size / sizeof(struct ocfs2_extent_rec);
596 static inline int ocfs2_local_alloc_size(int blocksize)
601 offsetof(struct ocfs2_dinode, id2.i_lab.la_bitmap);
606 static inline int ocfs2_group_bitmap_size(int blocksize)
611 offsetof(struct ocfs2_group_desc, bg_bitmap);
616 static inline int ocfs2_truncate_recs_per_inode(int blocksize)
621 offsetof(struct ocfs2_dinode, id2.i_dealloc.tl_recs);
623 return size / sizeof(struct ocfs2_truncate_rec);
625 #endif /* __KERNEL__ */
628 static inline int ocfs2_system_inode_is_global(int type)
630 return ((type >= 0) &&
631 (type <= OCFS2_LAST_GLOBAL_SYSTEM_INODE));
634 static inline int ocfs2_sprintf_system_inode_name(char *buf, int len,
640 * Global system inodes can only have one copy. Everything
641 * after OCFS2_LAST_GLOBAL_SYSTEM_INODE in the system inode
642 * list has a copy per slot.
644 if (type <= OCFS2_LAST_GLOBAL_SYSTEM_INODE)
645 chars = snprintf(buf, len,
646 ocfs2_system_inodes[type].si_name);
648 chars = snprintf(buf, len,
649 ocfs2_system_inodes[type].si_name,
655 static inline void ocfs2_set_de_type(struct ocfs2_dir_entry *de,
658 de->file_type = ocfs2_type_by_mode[(mode & S_IFMT)>>S_SHIFT];
661 #endif /* _OCFS2_FS_H */