[net-next-2.6.git] / include / linux / jffs2_fs_i.h

/* $Id: jffs2_fs_i.h,v 1.19 2005/11/07 11:14:52 gleixner Exp $ */

#ifndef _JFFS2_FS_I
#define _JFFS2_FS_I

#include <linux/version.h>
#include <linux/rbtree.h>
#include <asm/semaphore.h>

struct jffs2_inode_info {
	/* We need an internal mutex similar to inode->i_mutex.
	   Unfortunately, we can't used the existing one, because
	   either the GC would deadlock, or we'd have to release it
	   before letting GC proceed. Or we'd have to put ugliness
	   into the GC code so it didn't attempt to obtain the i_mutex
	   for the inode(s) which are already locked */
	struct semaphore sem;

	/* The highest (datanode) version number used for this ino */
	uint32_t highest_version;

	/* List of data fragments which make up the file */
	struct rb_root fragtree;

	/* There may be one datanode which isn't referenced by any of the
	   above fragments, if it contains a metadata update but no actual
	   data - or if this is a directory inode */
	/* This also holds the _only_ dnode for symlinks/device nodes,
	   etc. */
	struct jffs2_full_dnode *metadata;

	/* Directory entries */
	struct jffs2_full_dirent *dents;

	/* The target path if this is the inode of a symlink */
	unsigned char *target;

	/* Some stuff we just have to keep in-core at all times, for each inode. */
	struct jffs2_inode_cache *inocache;

	uint16_t flags;
	uint8_t usercompr;
#if !defined (__ECOS)
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,2)
	struct inode vfs_inode;
#endif
#endif
};

#endif /* _JFFS2_FS_I */
Commit	Line	Data
182ec4ee	1	/* $Id: jffs2_fs_i.h,v 1.19 2005/11/07 11:14:52 gleixner Exp $ */
1da177e4 LT	2
	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
	10	struct jffs2_inode_info {
1b1dcc1b	11	/* We need an internal mutex similar to inode->i_mutex.
1da177e4 LT	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
1b1dcc1b	15	into the GC code so it didn't attempt to obtain the i_mutex
1da177e4 LT	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 */
182ec4ee	28	/* This also holds the _only_ dnode for symlinks/device nodes,
1da177e4 LT	29	etc. */
	30	struct jffs2_full_dnode *metadata;
	31
	32	/* Directory entries */
	33	struct jffs2_full_dirent *dents;
	34
2b79adcc AB	35	/* The target path if this is the inode of a symlink */
	36	unsigned char *target;
	37
1da177e4 LT	38	/* 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 */