2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
11 * Linux interpretations of vnode and vfs structs.
13 * The Linux "inode" has been abstracted to the fs independent part to avoid
14 * wasting 100+bytes per vnode.
20 /* The vnode should match the current implementation of the fs independent
21 * part of the Linux inode.
23 /* The first cut is to continue to use a separate vnode pool. */
24 typedef struct vnode {
25 struct list_head i_hash;
26 struct list_head i_list;
27 struct list_head i_dentry;
37 #if defined(AFS_LINUX24_ENV)
45 unsigned long i_blksize;
46 unsigned long i_blocks;
47 unsigned long i_version;
48 #if !defined(AFS_LINUX24_ENV)
49 unsigned long i_nrpages;
51 struct semaphore i_sem;
52 #if defined(AFS_LINUX24_ENV)
53 struct semaphore i_zombie;
55 struct semaphore i_atomic_write;
57 struct inode_operations *i_op;
58 #if defined(AFS_LINUX24_ENV)
59 struct file_operations *i_fop;
61 struct super_block *i_sb;
62 #if defined(AFS_LINUX24_ENV)
63 wait_queue_head_t i_wait;
65 struct wait_queue *i_wait;
67 struct file_lock *i_flock;
68 #if defined(AFS_LINUX24_ENV)
69 struct address_space *i_mapping;
70 struct address_space i_data;
72 struct vm_area_struct *i_mmap;
75 struct dquot *i_dquot[MAXQUOTAS];
76 #if defined(AFS_LINUX24_ENV)
77 struct pipe_inode_info *i_pipe;
78 struct block_device *i_bdev;
81 unsigned long i_state;
84 #if !defined(AFS_LINUX24_ENV)
89 #if defined(AFS_LINUX24_ENV)
90 atomic_t i_writecount;
94 unsigned int i_attr_flags;
95 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,10)
100 struct pipe_inode_info pipe_i;
101 struct minix_inode_info minix_i;
102 struct ext2_inode_info ext2_i;
103 struct hpfs_inode_info hpfs_i;
104 struct ntfs_inode_info ntfs_i;
105 struct msdos_inode_info msdos_i;
106 struct umsdos_inode_info umsdos_i;
107 struct iso_inode_info isofs_i;
108 struct nfs_inode_info nfs_i;
109 struct sysv_inode_info sysv_i;
110 struct affs_inode_info affs_i;
111 struct ufs_inode_info ufs_i;
112 struct romfs_inode_info romfs_i;
113 struct coda_inode_info coda_i;
114 struct smb_inode_info smbfs_i;
115 struct hfs_inode_info hfs_i;
116 struct adfs_inode_info adfs_i;
117 struct qnx4_inode_info qnx4_i;
118 struct socket socket_i;
124 /* Map vnode fields to inode fields. */
125 #define i_number i_ino
126 #define v_count i_count
128 #if defined(AFS_LINUX24_ENV)
131 #define v_type i_mode
133 #define vfs_vnodecovered s_covered
135 /* v_type bits map to mode bits: */
142 #define VSOCK S_IFSOCK
144 /* vcexcl - used only by afs_create */
145 enum vcexcl { EXCL, NONEXCL } ;
147 /* afs_open and afs_close needs to distinguish these cases */
148 #define FWRITE O_WRONLY|O_RDWR|O_APPEND
149 #define FTRUNC O_TRUNC
152 #define IO_APPEND O_APPEND
155 #define VTOI(V) ((struct inode*)V)
156 #define VN_HOLD(V) ((vnode_t*)V)->i_count++;
157 #define VN_RELE(V) osi_iput((struct inode *)V);
158 #define VFS_STATFS(V, S) ((V)->s_op->statfs)((V), (S), sizeof(*(S)))
162 /* Various mode bits */
163 #define VWRITE S_IWUSR
164 #define VREAD S_IRUSR
165 #define VEXEC S_IXUSR
166 #define VSUID S_ISUID
167 #define VSGID S_ISGID
170 #define vfs super_block
172 typedef struct vattr {
173 int va_type; /* One of v_types above. */
175 unsigned long va_blocks;
176 unsigned long va_blocksize;
177 int va_mask; /* AT_xxx operation to perform. */
178 umode_t va_mode; /* mode bits. */
181 int va_fsid; /* Not used? */
183 ino_t va_nodeid; /* Inode number */
184 nlink_t va_nlink; /* link count for file. */
185 struct timeval va_atime;
186 struct timeval va_mtime;
187 struct timeval va_ctime;
190 #define VATTR_NULL(A) memset(A, 0, sizeof(struct vattr))
193 /* va_masks - these should match their respective ATTR_xxx #defines in fs.h.
194 * afs_notify_change has to use the attr bits in both the Linux and AFS
195 * meanings. The glue layer code uses the ATTR_xxx style names.
197 #define AT_SIZE ATTR_SIZE
198 #define AT_MODE ATTR_MODE
199 #define AT_UID ATTR_UID
200 #define AT_GID ATTR_GID
201 #define AT_MTIME ATTR_MTIME
204 #define vnodeops inode_operations
206 #endif /* OSI_VFS_H_ */