2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013 Mellanox Technologies, Ltd.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <sys/cdefs.h>
33 #include <sys/param.h>
34 #include <sys/systm.h>
36 #include <sys/vnode.h>
38 #include <sys/filedesc.h>
39 #include <linux/types.h>
40 #include <linux/wait.h>
41 #include <linux/semaphore.h>
49 struct pipe_inode_info;
50 struct vm_area_struct;
51 struct poll_table_struct;
57 #define S_IRUGO (S_IRUSR | S_IRGRP | S_IROTH)
58 #define S_IWUGO (S_IWUSR | S_IWGRP | S_IWOTH)
61 typedef struct files_struct *fl_owner_t;
64 struct inode *d_inode;
67 struct file_operations;
71 const struct file_operations *f_op;
74 int f_mode; /* Just starting mode. */
75 struct dentry *f_dentry;
76 struct dentry f_dentry_store;
77 struct selinfo f_selinfo;
78 struct sigio *f_sigio;
79 struct vnode *f_vnode;
82 #define file linux_file
83 #define fasync_struct sigio *
85 #define fasync_helper(fd, filp, on, queue) \
88 *(queue) = &(filp)->f_sigio; \
94 #define kill_fasync(queue, sig, pollstat) \
96 if (*(queue) != NULL) \
97 pgsigio(*(queue), (sig), 0); \
100 typedef int (*filldir_t)(void *, const char *, int, loff_t, u64, unsigned);
102 struct file_operations {
103 struct module *owner;
104 ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
105 ssize_t (*write)(struct file *, const char __user *, size_t, loff_t *);
106 unsigned int (*poll) (struct file *, struct poll_table_struct *);
107 long (*unlocked_ioctl)(struct file *, unsigned int, unsigned long);
108 int (*mmap)(struct file *, struct vm_area_struct *);
109 int (*open)(struct inode *, struct file *);
110 int (*release)(struct inode *, struct file *);
111 int (*fasync)(int, struct file *, int);
113 /* Although not supported in FreeBSD, to align with Linux code
114 * we are adding llseek() only when it is mapped to no_llseek which returns
115 * an illegal seek error
117 loff_t (*llseek)(struct file *, loff_t, int);
119 /* We do not support these methods. Don't permit them to compile. */
120 loff_t (*llseek)(struct file *, loff_t, int);
121 ssize_t (*aio_read)(struct kiocb *, const struct iovec *,
122 unsigned long, loff_t);
123 ssize_t (*aio_write)(struct kiocb *, const struct iovec *,
124 unsigned long, loff_t);
125 int (*readdir)(struct file *, void *, filldir_t);
126 int (*ioctl)(struct inode *, struct file *, unsigned int,
128 long (*compat_ioctl)(struct file *, unsigned int, unsigned long);
129 int (*flush)(struct file *, fl_owner_t id);
130 int (*fsync)(struct file *, struct dentry *, int datasync);
131 int (*aio_fsync)(struct kiocb *, int datasync);
132 int (*lock)(struct file *, int, struct file_lock *);
133 ssize_t (*sendpage)(struct file *, struct page *, int, size_t,
135 unsigned long (*get_unmapped_area)(struct file *, unsigned long,
136 unsigned long, unsigned long, unsigned long);
137 int (*check_flags)(int);
138 int (*flock)(struct file *, int, struct file_lock *);
139 ssize_t (*splice_write)(struct pipe_inode_info *, struct file *,
140 loff_t *, size_t, unsigned int);
141 ssize_t (*splice_read)(struct file *, loff_t *,
142 struct pipe_inode_info *, size_t, unsigned int);
143 int (*setlease)(struct file *, long, struct file_lock **);
146 #define fops_get(fops) (fops)
148 #define FMODE_READ FREAD
149 #define FMODE_WRITE FWRITE
150 #define FMODE_EXEC FEXEC
153 register_chrdev_region(dev_t dev, unsigned range, const char *name)
160 unregister_chrdev_region(dev_t dev, unsigned range)
167 alloc_chrdev_region(dev_t *dev, unsigned baseminor, unsigned count,
174 /* No current support for seek op in FreeBSD */
176 nonseekable_open(struct inode *inode, struct file *filp)
182 iminor(struct inode *inode)
185 return dev2unit(inode->v_rdev);
188 static inline struct inode *
189 igrab(struct inode *inode)
193 error = vget(inode, 0, curthread);
201 iput(struct inode *inode)
208 no_llseek(struct file *file, loff_t offset, int whence)
213 #endif /* _LINUX_FS_H_ */