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Current Path: /usr/src/sys/compat/linuxkpi/common/include/linux

usr / src / sys / compat / linuxkpi / common / include / linux /

📁 ..
📄 acpi.h(1.72 KB)
📄 atomic.h(1.5 KB)
📄 backlight.h(2.88 KB)
📄 bitfield.h(3.2 KB)
📄 bitmap.h(8.2 KB)
📄 bitops.h(9.41 KB)
📄 bottom_half.h(1.49 KB)
📄 cache.h(1.61 KB)
📄 cdev.h(3.77 KB)
📄 clocksource.h(1.63 KB)
📄 compat.h(2.07 KB)
📄 compiler.h(3.56 KB)
📄 completion.h(2.68 KB)
📄 dcache.h(1.64 KB)
📄 debugfs.h(1.96 KB)
📄 delay.h(2.25 KB)
📄 device.h(15.33 KB)
📄 dma-attrs.h(2.12 KB)
📄 dma-mapping.h(8.88 KB)
📄 dmapool.h(2.77 KB)
📄 dmi.h(2 KB)
📄 err.h(2.23 KB)
📄 errno.h(2.18 KB)
📄 etherdevice.h(2.91 KB)
📄 export.h(1.44 KB)
📄 file.h(4.46 KB)
📄 firmware.h(3.27 KB)
📄 fs.h(8.19 KB)
📄 gcd.h(1.7 KB)
📄 gfp.h(4.7 KB)
📄 hardirq.h(1.7 KB)
📄 hrtimer.h(3.04 KB)
📄 idr.h(4.61 KB)
📄 if_arp.h(1.62 KB)
📄 if_ether.h(2.12 KB)
📄 if_vlan.h(1.96 KB)
📄 in.h(1.87 KB)
📄 in6.h(1.54 KB)
📄 inetdevice.h(2.79 KB)
📄 interrupt.h(5.63 KB)
📄 io-mapping.h(3.05 KB)
📄 io.h(10.36 KB)
📄 ioctl.h(1.59 KB)
📄 irq_work.h(2.21 KB)
📄 irqreturn.h(1.56 KB)
📄 jhash.h(3.2 KB)
📄 jiffies.h(4.36 KB)
📄 kdev_t.h(1.76 KB)
📄 kernel.h(16.91 KB)
📄 kmod.h(1.89 KB)
📄 kobject.h(4.23 KB)
📄 kref.h(3.16 KB)
📄 kthread.h(2.84 KB)
📄 ktime.h(5.12 KB)
📄 list.h(12.2 KB)
📄 llist.h(2.25 KB)
📄 lockdep.h(2.99 KB)
📄 log2.h(3.96 KB)
📄 math64.h(2.7 KB)
📄 miscdevice.h(2.42 KB)
📄 mm.h(6.73 KB)
📄 mm_types.h(2.33 KB)
📄 mod_devicetable.h(2.25 KB)
📄 module.h(3.22 KB)
📄 moduleparam.h(5.26 KB)
📄 mutex.h(4.6 KB)
📄 net.h(2.42 KB)
📄 net_dim.h(9.87 KB)
📄 netdevice.h(3.85 KB)
📄 notifier.h(1.97 KB)
📄 numa.h(1.52 KB)
📄 overflow.h(2.13 KB)
📄 page.h(3.28 KB)
📄 pagemap.h(1.63 KB)
📄 pci.h(29.63 KB)
📄 pfn.h(1.75 KB)
📄 pfn_t.h(1.9 KB)
📄 pid.h(2.17 KB)
📄 pm.h(2.01 KB)
📄 poll.h(1.86 KB)
📄 power_supply.h(1.66 KB)
📄 preempt.h(1.69 KB)
📄 prefetch.h(1.55 KB)
📄 printk.h(4.08 KB)
📄 radix-tree.h(3.13 KB)
📄 random.h(2.04 KB)
📄 rbtree.h(3.37 KB)
📄 rculist.h(4.11 KB)
📄 rcupdate.h(3.66 KB)
📄 refcount.h(2.3 KB)
📄 rwlock.h(2.55 KB)
📄 rwsem.h(3.06 KB)
📄 scatterlist.h(12.58 KB)
📄 sched.h(5.91 KB)
📄 semaphore.h(2.36 KB)
📄 seq_file.h(3.03 KB)
📄 shmem_fs.h(2.26 KB)
📄 shrinker.h(2.04 KB)
📄 sizes.h(1.92 KB)
📄 slab.h(6.19 KB)
📄 smp.h(1.57 KB)
📄 socket.h(2.17 KB)
📄 spinlock.h(4.29 KB)
📄 srcu.h(2.02 KB)
📄 string.h(3.83 KB)
📄 swap.h(1.68 KB)
📄 sysfs.h(7.54 KB)
📄 time.h(3.17 KB)
📄 timer.h(3.21 KB)
📄 types.h(2.82 KB)
📄 uaccess.h(3.26 KB)
📄 usb.h(11.33 KB)
📄 vmalloc.h(1.72 KB)
📄 wait.h(9.41 KB)
📄 wait_bit.h(2.03 KB)
📄 workqueue.h(7.58 KB)
📄 ww_mutex.h(3.74 KB)
📄 xarray.h(3.33 KB)

Editing: file.h

/*-
 * Copyright (c) 2010 Isilon Systems, Inc.
 * Copyright (c) 2010 iX Systems, Inc.
 * Copyright (c) 2010 Panasas, Inc.
 * Copyright (c) 2013-2017 Mellanox Technologies, Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice unmodified, this list of conditions, and the following
 *    disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * $FreeBSD$
 */
#ifndef	_LINUX_FILE_H_
#define	_LINUX_FILE_H_

#include <sys/param.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/refcount.h>
#include <sys/capsicum.h>
#include <sys/proc.h>

#include <linux/fs.h>
#include <linux/slab.h>

struct linux_file;

#undef file

extern struct fileops linuxfileops;

static inline struct linux_file *
linux_fget(unsigned int fd)
{
	struct file *file;

/* lookup file pointer by file descriptor index */
	if (fget_unlocked(curthread->td_proc->p_fd, fd,
	    &cap_no_rights, &file) != 0)
		return (NULL);

/* check if file handle really belongs to us */
	if (file->f_data == NULL ||
	    file->f_ops != &linuxfileops) {
		fdrop(file, curthread);
		return (NULL);
	}
	return ((struct linux_file *)file->f_data);
}

extern void linux_file_free(struct linux_file *filp);

static inline void
fput(struct linux_file *filp)
{
	if (refcount_release(filp->_file == NULL ?
	    &filp->f_count : &filp->_file->f_count)) {
		linux_file_free(filp);
	}
}

static inline unsigned int
file_count(struct linux_file *filp)
{
	return (filp->_file == NULL ?
	    filp->f_count : filp->_file->f_count);
}

static inline void
put_unused_fd(unsigned int fd)
{
	struct file *file;

if (fget_unlocked(curthread->td_proc->p_fd, fd,
	    &cap_no_rights, &file) != 0) {
		return;
	}
	/*
	 * NOTE: We should only get here when the "fd" has not been
	 * installed, so no need to free the associated Linux file
	 * structure.
	 */
	fdclose(curthread, file, fd);

/* drop extra reference */
	fdrop(file, curthread);
}

static inline void
fd_install(unsigned int fd, struct linux_file *filp)
{
	struct file *file;

if (fget_unlocked(curthread->td_proc->p_fd, fd,
	    &cap_no_rights, &file) != 0) {
		filp->_file = NULL;
	} else {
		filp->_file = file;
		finit(file, filp->f_mode, DTYPE_DEV, filp, &linuxfileops);

/* transfer reference count from "filp" to "file" */
		while (refcount_release(&filp->f_count) == 0)
			refcount_acquire(&file->f_count);
	}

/* drop the extra reference */
	fput(filp);
}

static inline int
get_unused_fd(void)
{
	struct file *file;
	int error;
	int fd;

error = falloc(curthread, &file, &fd, 0);
	if (error)
		return -error;
	/* drop the extra reference */
	fdrop(file, curthread);
	return fd;
}

static inline int
get_unused_fd_flags(int flags)
{
	struct file *file;
	int error;
	int fd;

error = falloc(curthread, &file, &fd, flags);
	if (error)
		return -error;
	/* drop the extra reference */
	fdrop(file, curthread);
	return fd;
}

extern struct linux_file *linux_file_alloc(void);

static inline struct linux_file *
alloc_file(int mode, const struct file_operations *fops)
{
	struct linux_file *filp;

filp = linux_file_alloc();
	filp->f_op = fops;
	filp->f_mode = mode;

return (filp);
}

struct fd {
	struct linux_file *linux_file;
};

static inline void fdput(struct fd fd)
{
	fput(fd.linux_file);
}

static inline struct fd fdget(unsigned int fd)
{
	struct linux_file *f = linux_fget(fd);
	return (struct fd){f};
}

#define	file		linux_file
#define	fget(...)	linux_fget(__VA_ARGS__)

#endif	/* _LINUX_FILE_H_ */

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Editing: file.h

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