mdesc.c (01b944fe1cd4e21a2a9ed51adbdbafe2d5e905ba) mdesc.c (b25472f9b96159cc0b9b7ed449448805973cd789)
1/* mdesc.c: Sun4V machine description handling.
2 *
3 * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
4 */
5#include <linux/kernel.h>
6#include <linux/types.h>
7#include <linux/memblock.h>
8#include <linux/log2.h>

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1028 return count;
1029 } else {
1030 return -EFAULT;
1031 }
1032}
1033
1034static loff_t mdesc_llseek(struct file *file, loff_t offset, int whence)
1035{
1/* mdesc.c: Sun4V machine description handling.
2 *
3 * Copyright (C) 2007, 2008 David S. Miller <davem@davemloft.net>
4 */
5#include <linux/kernel.h>
6#include <linux/types.h>
7#include <linux/memblock.h>
8#include <linux/log2.h>

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1028 return count;
1029 } else {
1030 return -EFAULT;
1031 }
1032}
1033
1034static loff_t mdesc_llseek(struct file *file, loff_t offset, int whence)
1035{
1036 struct mdesc_handle *hp;
1036 struct mdesc_handle *hp = file->private_data;
1037
1037
1038 switch (whence) {
1039 case SEEK_CUR:
1040 offset += file->f_pos;
1041 break;
1042 case SEEK_SET:
1043 break;
1044 default:
1045 return -EINVAL;
1046 }
1047
1048 hp = file->private_data;
1049 if (offset > hp->handle_size)
1050 return -EINVAL;
1051 else
1052 file->f_pos = offset;
1053
1054 return offset;
1038 return no_seek_end_llseek_size(file, offset, whence, hp->handle_size);
1055}
1056
1057/* mdesc_close() - /dev/mdesc is being closed, release the reference to
1058 * mdesc structure.
1059 */
1060static int mdesc_close(struct inode *inode, struct file *file)
1061{
1062 mdesc_release(file->private_data);

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1040
1041/* mdesc_close() - /dev/mdesc is being closed, release the reference to
1042 * mdesc structure.
1043 */
1044static int mdesc_close(struct inode *inode, struct file *file)
1045{
1046 mdesc_release(file->private_data);

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