1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * Coda File System, Linux Kernel module 4 * 5 * Original version, adapted from cfs_mach.c, (C) Carnegie Mellon University 6 * Linux modifications (C) 1996, Peter J. Braam 7 * Rewritten for Linux 2.1 (C) 1997 Carnegie Mellon University 8 * 9 * Carnegie Mellon University encourages users of this software to 10 * contribute improvements to the Coda project. 11 */ 12 13#ifndef _LINUX_CODA_FS 14#define _LINUX_CODA_FS 15 16#ifdef pr_fmt 17#undef pr_fmt 18#endif 19 20#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt 21 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 inode *inode, int mask); 50int coda_revalidate_inode(struct inode *); 51int coda_getattr(const struct path *, struct kstat *, u32, unsigned int); 52int coda_setattr(struct dentry *, struct iattr *); 53 54/* this file: heloers */ 55char *coda_f2s(struct CodaFid *f); 56int coda_iscontrol(const char *name, size_t length); 57 58void coda_vattr_to_iattr(struct inode *, struct coda_vattr *); 59void coda_iattr_to_vattr(struct iattr *, struct coda_vattr *); 60unsigned short coda_flags_to_cflags(unsigned short); 61 62/* inode to cnode access functions */ 63 64static inline struct coda_inode_info *ITOC(struct inode *inode) 65{ 66 return container_of(inode, struct coda_inode_info, vfs_inode); 67} 68 69static __inline__ struct CodaFid *coda_i2f(struct inode *inode) 70{ 71 return &(ITOC(inode)->c_fid); 72} 73 74static __inline__ char *coda_i2s(struct inode *inode) 75{ 76 return coda_f2s(&(ITOC(inode)->c_fid)); 77} 78 79/* this will not zap the inode away */ 80static __inline__ void coda_flag_inode(struct inode *inode, int flag) 81{ 82 struct coda_inode_info *cii = ITOC(inode); 83 84 spin_lock(&cii->c_lock); 85 cii->c_flags |= flag; 86 spin_unlock(&cii->c_lock); 87} 88 89#endif 90