+++ /dev/null
-/*
- * Copyright 2000, International Business Machines Corporation and others.
- * All Rights Reserved.
- *
- * This software has been released under the terms of the IBM Public
- * License. For details, see the LICENSE file in the top-level source
- * directory or online at http://www.openafs.org/dl/license10.html
- */
-
-/*
- * Linux interpretations of vnode and vfs structs.
- *
- * The Linux "inode" has been abstracted to the fs independent part to avoid
- * wasting 100+bytes per vnode.
- */
-
-#ifndef OSI_VFS_H_
-#define OSI_VFS_H_
-
-/* The vnode should match the current implementation of the fs independent
- * part of the Linux inode.
- */
-/* The first cut is to continue to use a separate vnode pool. */
-typedef struct vnode {
- struct list_head i_hash;
- struct list_head i_list;
- struct list_head i_dentry;
-#if defined(AFS_LINUX24_ENV)
- struct list_head i_dirty_buffers;
-#endif
-#if defined(STRUCT_INODE_HAS_I_DIRTY_DATA_BUFFERS)
- struct list_head i_dirty_data_buffers;
-#endif
- unsigned long i_ino;
- unsigned int i_count;
- kdev_t i_dev;
- umode_t i_mode;
- nlink_t i_nlink;
- uid_t i_uid;
- gid_t i_gid;
- kdev_t i_rdev;
-#if defined(AFS_LINUX24_ENV) || defined(pgoff2loff)
- loff_t i_size;
-#else
- off_t i_size;
-#endif
- time_t i_atime;
- time_t i_mtime;
- time_t i_ctime;
- unsigned long i_blksize;
- unsigned long i_blocks;
- unsigned long i_version;
-#if !defined(AFS_LINUX24_ENV)
- unsigned long i_nrpages;
-#endif
-#ifdef STRUCT_INODE_HAS_I_BYTES
- unsigned short i_bytes;
-#endif
- struct semaphore i_sem;
-#ifdef STRUCT_INODE_HAS_I_TRUNCATE_SEM
- struct rw_semaphore i_truncate_sem;
-#endif
-#if defined(AFS_LINUX24_ENV)
- struct semaphore i_zombie;
-#else
- struct semaphore i_atomic_write;
-#endif
- struct inode_operations *i_op;
-#if defined(AFS_LINUX24_ENV)
- struct file_operations *i_fop;
-#endif
- struct super_block *i_sb;
-#if defined(AFS_LINUX24_ENV)
- wait_queue_head_t i_wait;
-#else
- struct wait_queue *i_wait;
-#endif
- struct file_lock *i_flock;
-#if defined(AFS_LINUX24_ENV)
- struct address_space *i_mapping;
- struct address_space i_data;
-#else
- struct vm_area_struct *i_mmap;
-#if defined(STRUCT_INODE_HAS_I_MMAP_SHARED)
- struct vm_area_struct *i_mmap_shared;
-#endif
- struct page *i_pages;
-#endif
-#if defined(STRUCT_INODE_HAS_I_MAPPING_OVERLOAD)
- int i_mapping_overload;
-#endif
- struct dquot *i_dquot[MAXQUOTAS];
-#if defined(AFS_LINUX24_ENV)
-#if defined(STRUCT_INODE_HAS_I_DEVICES)
- struct list_head i_devices;
-#endif
- struct pipe_inode_info *i_pipe;
- struct block_device *i_bdev;
-#if defined(STRUCT_INODE_HAS_I_CDEV)
- struct char_device *i_cdev;
-#endif
- unsigned long i_dnotify_mask;
- struct dnotify_struct *i_dnotify;
-#endif
-
- unsigned long i_state;
-
- unsigned int i_flags;
-#if !defined(AFS_LINUX24_ENV)
- unsigned char i_pipe;
-#endif
- unsigned char i_sock;
-
-#if defined(AFS_LINUX24_ENV)
- atomic_t i_writecount;
-#else
- int i_writecount;
-#endif
- unsigned int i_attr_flags;
-#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,2,10)
- __u32 i_generation;
-#endif
-#ifdef notdef
- union {
- struct pipe_inode_info pipe_i;
- struct minix_inode_info minix_i;
- struct ext2_inode_info ext2_i;
- struct hpfs_inode_info hpfs_i;
- struct ntfs_inode_info ntfs_i;
- struct msdos_inode_info msdos_i;
- struct umsdos_inode_info umsdos_i;
- struct iso_inode_info isofs_i;
- struct nfs_inode_info nfs_i;
- struct sysv_inode_info sysv_i;
- struct affs_inode_info affs_i;
- struct ufs_inode_info ufs_i;
- struct romfs_inode_info romfs_i;
- struct coda_inode_info coda_i;
- struct smb_inode_info smbfs_i;
- struct hfs_inode_info hfs_i;
- struct adfs_inode_info adfs_i;
- struct qnx4_inode_info qnx4_i;
- struct socket socket_i;
- void *generic_ip;
- } u;
-#endif
-} vnode_t;
-
-/* Map vnode fields to inode fields. */
-#define i_number i_ino
-#define v_count i_count
-#define v_op i_op
-#if defined(AFS_LINUX24_ENV)
-#define v_fop i_fop
-#endif
-#define v_type i_mode
-#define v_vfsp i_sb
-#define vfs_vnodecovered s_covered
-
-/* v_type bits map to mode bits: */
-#define VNON 0
-#define VREG S_IFREG
-#define VDIR S_IFDIR
-#define VBLK S_IFBLK
-#define VCHR S_IFCHR
-#define VLNK S_IFLNK
-#define VSOCK S_IFSOCK
-
-/* vcexcl - used only by afs_create */
-enum vcexcl { EXCL, NONEXCL } ;
-
-/* afs_open and afs_close needs to distinguish these cases */
-#define FWRITE O_WRONLY|O_RDWR|O_APPEND
-#define FTRUNC O_TRUNC
-
-
-#define IO_APPEND O_APPEND
-#define FSYNC O_SYNC
-
-#define VTOI(V) ((struct inode*)V)
-#define VN_HOLD(V) ((vnode_t*)V)->i_count++;
-#define VN_RELE(V) osi_iput((struct inode *)V);
-#define VFS_STATFS(V, S) ((V)->s_op->statfs)((V), (S), sizeof(*(S)))
-
-
-
-/* Various mode bits */
-#define VWRITE S_IWUSR
-#define VREAD S_IRUSR
-#define VEXEC S_IXUSR
-#define VSUID S_ISUID
-#define VSGID S_ISGID
-
-
-#define vfs super_block
-
-typedef struct vattr {
- int va_type; /* One of v_types above. */
- size_t va_size;
- unsigned long va_blocks;
- unsigned long va_blocksize;
- int va_mask; /* AT_xxx operation to perform. */
- umode_t va_mode; /* mode bits. */
- uid_t va_uid;
- gid_t va_gid;
- int va_fsid; /* Not used? */
- dev_t va_rdev;
- ino_t va_nodeid; /* Inode number */
- nlink_t va_nlink; /* link count for file. */
- struct timeval va_atime;
- struct timeval va_mtime;
- struct timeval va_ctime;
-} vattr_t;
-
-#define VATTR_NULL(A) memset(A, 0, sizeof(struct vattr))
-
-
-/* va_masks - these should match their respective ATTR_xxx #defines in fs.h.
- * afs_notify_change has to use the attr bits in both the Linux and AFS
- * meanings. The glue layer code uses the ATTR_xxx style names.
- */
-#define AT_SIZE ATTR_SIZE
-#define AT_MODE ATTR_MODE
-#define AT_UID ATTR_UID
-#define AT_GID ATTR_GID
-#define AT_MTIME ATTR_MTIME
-
-
-#define vnodeops inode_operations
-
-#endif /* OSI_VFS_H_ */
git://git.openafs.org / openafs.git / blobdiff