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1/* SPDX-License-Identifier: GPL-2.0 */2/* 3 * Coda File System, Linux Kernel module4 * 5 * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University6 * Linux modifications (C) 1996, Peter J. Braam7 * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University8 *9 * Carnegie Mellon University encourages users of this software to10 * contribute improvements to the Coda project.11 */12 13#ifndef _LINUX_CODA_FS14#define _LINUX_CODA_FS15 16#ifdef pr_fmt17#undef pr_fmt18#endif19 20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt21 22#include <linux/kernel.h>23#include <linux/param.h>24#include <linux/mm.h>25#include <linux/vmalloc.h>26#include <linux/slab.h>27#include <linux/wait.h> 28#include <linux/types.h>29#include <linux/fs.h>30#include "coda_fs_i.h"31 32/* operations */33extern const struct inode_operations coda_dir_inode_operations;34extern const struct inode_operations coda_file_inode_operations;35extern const struct inode_operations coda_ioctl_inode_operations;36 37extern const struct dentry_operations coda_dentry_operations;38 39extern const struct address_space_operations coda_file_aops;40extern const struct address_space_operations coda_symlink_aops;41 42extern const struct file_operations coda_dir_operations;43extern const struct file_operations coda_file_operations;44extern const struct file_operations coda_ioctl_operations;45 46/* operations shared over more than one file */47int coda_open(struct inode *i, struct file *f);48int coda_release(struct inode *i, struct file *f);49int coda_permission(struct mnt_idmap *idmap, struct inode *inode,50 int mask);51int coda_revalidate_inode(struct inode *);52int coda_getattr(struct mnt_idmap *, const struct path *, struct kstat *,53 u32, unsigned int);54int coda_setattr(struct mnt_idmap *, struct dentry *, struct iattr *);55 56/* this file: helpers */57char *coda_f2s(struct CodaFid *f);58int coda_iscontrol(const char *name, size_t length);59 60umode_t coda_inode_type(struct coda_vattr *attr);61void coda_vattr_to_iattr(struct inode *, struct coda_vattr *);62void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *);63unsigned short coda_flags_to_cflags(unsigned short);64 65/* inode to cnode access functions */66 67static inline struct coda_inode_info *ITOC(struct inode *inode)68{69 return container_of(inode, struct coda_inode_info, vfs_inode);70}71 72static __inline__ struct CodaFid *coda_i2f(struct inode *inode)73{74 return &(ITOC(inode)->c_fid);75}76 77static __inline__ char *coda_i2s(struct inode *inode)78{79 return coda_f2s(&(ITOC(inode)->c_fid));80}81 82/* this will not zap the inode away */83static __inline__ void coda_flag_inode(struct inode *inode, int flag)84{85 struct coda_inode_info *cii = ITOC(inode);86 87 if (!inode)88 return;89 90 spin_lock(&cii->c_lock);91 cii->c_flags |= flag;92 spin_unlock(&cii->c_lock);93} 94 95#endif96