Linux Kernel  3.7.1
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ide-disk_ioctl.c
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1 #include <linux/kernel.h>
2 #include <linux/ide.h>
3 #include <linux/hdreg.h>
4 #include <linux/mutex.h>
5 
6 #include "ide-disk.h"
7 
8 static DEFINE_MUTEX(ide_disk_ioctl_mutex);
9 static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
10 { HDIO_GET_ADDRESS, HDIO_SET_ADDRESS, &ide_devset_address },
11 { HDIO_GET_MULTCOUNT, HDIO_SET_MULTCOUNT, &ide_devset_multcount },
12 { HDIO_GET_NOWERR, HDIO_SET_NOWERR, &ide_devset_nowerr },
13 { HDIO_GET_WCACHE, HDIO_SET_WCACHE, &ide_devset_wcache },
14 { HDIO_GET_ACOUSTIC, HDIO_SET_ACOUSTIC, &ide_devset_acoustic },
15 { 0 }
16 };
17 
19  unsigned int cmd, unsigned long arg)
20 {
21  int err;
22 
23  mutex_lock(&ide_disk_ioctl_mutex);
24  err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
25  if (err != -EOPNOTSUPP)
26  goto out;
27 
28  err = generic_ide_ioctl(drive, bdev, cmd, arg);
29 out:
30  mutex_unlock(&ide_disk_ioctl_mutex);
31  return err;
32 }