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Thomas Gleixner182ec4e2005-11-07 11:16:07 +00001/* $Id: jffs2_fs_i.h,v 1.19 2005/11/07 11:14:52 gleixner Exp $ */
Linus Torvalds1da177e2005-04-16 15:20:36 -07002
3#ifndef _JFFS2_FS_I
4#define _JFFS2_FS_I
5
6#include <linux/version.h>
7#include <linux/rbtree.h>
8#include <asm/semaphore.h>
9
10struct jffs2_inode_info {
11 /* We need an internal semaphore similar to inode->i_sem.
12 Unfortunately, we can't used the existing one, because
13 either the GC would deadlock, or we'd have to release it
14 before letting GC proceed. Or we'd have to put ugliness
15 into the GC code so it didn't attempt to obtain the i_sem
16 for the inode(s) which are already locked */
17 struct semaphore sem;
18
19 /* The highest (datanode) version number used for this ino */
20 uint32_t highest_version;
21
22 /* List of data fragments which make up the file */
23 struct rb_root fragtree;
24
25 /* There may be one datanode which isn't referenced by any of the
26 above fragments, if it contains a metadata update but no actual
27 data - or if this is a directory inode */
Thomas Gleixner182ec4e2005-11-07 11:16:07 +000028 /* This also holds the _only_ dnode for symlinks/device nodes,
Linus Torvalds1da177e2005-04-16 15:20:36 -070029 etc. */
30 struct jffs2_full_dnode *metadata;
31
32 /* Directory entries */
33 struct jffs2_full_dirent *dents;
34
Artem B. Bityutskiy2b79adc2005-07-17 12:13:51 +010035 /* The target path if this is the inode of a symlink */
36 unsigned char *target;
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 /* Some stuff we just have to keep in-core at all times, for each inode. */
39 struct jffs2_inode_cache *inocache;
40
41 uint16_t flags;
42 uint8_t usercompr;
43#if !defined (__ECOS)
44#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
45 struct inode vfs_inode;
46#endif
47#endif
48};
49
50#endif /* _JFFS2_FS_I */