[linux-2.6-block.git] / fs / jffs2 / 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 <linux/posix_acl.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;
	struct inode vfs_inode;
#ifdef CONFIG_JFFS2_FS_POSIX_ACL
	struct posix_acl *i_acl_access;
	struct posix_acl *i_acl_default;
#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>
aa98d7cf	8	#include <linux/posix_acl.h>
1da177e4 LT	9	#include <asm/semaphore.h>
	10
	11	struct jffs2_inode_info {
1b1dcc1b	12	/* We need an internal mutex similar to inode->i_mutex.
1da177e4 LT	13	Unfortunately, we can't used the existing one, because
	14	either the GC would deadlock, or we'd have to release it
	15	before letting GC proceed. Or we'd have to put ugliness
1b1dcc1b	16	into the GC code so it didn't attempt to obtain the i_mutex
1da177e4 LT	17	for the inode(s) which are already locked */
	18	struct semaphore sem;
	19
	20	/* The highest (datanode) version number used for this ino */
	21	uint32_t highest_version;
	22
	23	/* List of data fragments which make up the file */
	24	struct rb_root fragtree;
	25
	26	/* There may be one datanode which isn't referenced by any of the
	27	above fragments, if it contains a metadata update but no actual
	28	data - or if this is a directory inode */
182ec4ee	29	/* This also holds the _only_ dnode for symlinks/device nodes,
1da177e4 LT	30	etc. */
	31	struct jffs2_full_dnode *metadata;
	32
	33	/* Directory entries */
	34	struct jffs2_full_dirent *dents;
	35
2b79adcc AB	36	/* The target path if this is the inode of a symlink */
	37	unsigned char *target;
	38
1da177e4 LT	39	/* Some stuff we just have to keep in-core at all times, for each inode. */
	40	struct jffs2_inode_cache *inocache;
	41
	42	uint16_t flags;
	43	uint8_t usercompr;
1da177e4	44	struct inode vfs_inode;
aa98d7cf KK	45	#ifdef CONFIG_JFFS2_FS_POSIX_ACL
	46	struct posix_acl *i_acl_access;
	47	struct posix_acl *i_acl_default;
	48	#endif
1da177e4 LT	49	};
	50
	51	#endif /* _JFFS2_FS_I */