Esempi in C++ (Cpp) per umsdos_file_write_kmem

Esempio n. 1

File: emd.c Progetto: liexusong/linux2.0-comment

/*
	Write a block of bytes into one EMD file.
	The block of data is NOT in user space.

	Return 0 if ok, a negative error code if not.
*/
int umsdos_emd_dir_write (
	struct inode *emd_dir,
	struct file *filp,
	char *buf,	/* buffer in kernel memory, not in user space */
	int count)
{
	int written;
	filp->f_flags = 0;
	written = umsdos_file_write_kmem (emd_dir,filp,buf,count);
	return written != count ? -EIO : 0;
}

Esempio n. 2

ssize_t umsdos_emd_dir_write (	struct file *filp,
				char *buf,	
				size_t count)
{
	int written;

#ifdef __BIG_ENDIAN
	struct umsdos_dirent *d = (struct umsdos_dirent *) buf;

	d->nlink = cpu_to_le16 (d->nlink);
	d->uid = cpu_to_le16 (d->uid);
	d->gid = cpu_to_le16 (d->gid);
	d->atime = cpu_to_le32 (d->atime);
	d->mtime = cpu_to_le32 (d->mtime);
	d->ctime = cpu_to_le32 (d->ctime);
	d->rdev = cpu_to_le16 (d->rdev);
	d->mode = cpu_to_le16 (d->mode);
#endif

	filp->f_flags = 0;
Printk (("umsdos_emd_dir_write /mn/: calling write_kmem with %p, %p, %d, %Ld\n",
filp, buf, count, filp->f_pos));
	written = umsdos_file_write_kmem (filp, buf, count);

#ifdef __BIG_ENDIAN
	d->nlink = le16_to_cpu (d->nlink);
	d->uid = le16_to_cpu (d->uid);
	d->gid = le16_to_cpu (d->gid);
	d->atime = le32_to_cpu (d->atime);
	d->mtime = le32_to_cpu (d->mtime);
	d->ctime = le32_to_cpu (d->ctime);
	d->rdev = le16_to_cpu (d->rdev);
	d->mode = le16_to_cpu (d->mode);
#endif

#ifdef UMSDOS_PARANOIA
if (written != count)
printk(KERN_ERR "umsdos_emd_dir_write: ERROR: written (%d) != count (%d)\n",
written, count);
#endif

	return (written != count) ? -EIO : 0;
}