ide: factor out HDIO_*_NICE ioctl handling to ide_*_nice_ioctl()

Factor out HDIO_{GET,SET}_NICE ioctl handling from
generic_ide_ioctl() to ide_{get,set}_nice_ioctl().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

1 files changed, 26 insertions, 14 deletions

diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c
index 4d0c661e78a5..12618d2aed2c 100644
--- a/drivers/ide/ide.c
+++ b/drivers/ide/ide.c
@@ -558,6 +558,28 @@ out:
         return rc;
 }
 
+static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg)
+{
+        return put_user((drive->dsc_overlap << IDE_NICE_DSC_OVERLAP) |
+                        (drive->nice1 << IDE_NICE_1), (long __user *)arg);
+}
+
+static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg)
+{
+        if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1))))
+                return -EPERM;
+
+        if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) &&
+            (drive->media == ide_disk || drive->media == ide_floppy ||
+             drive->scsi))
+                return -EPERM;
+
+        drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1;
+        drive->nice1 = (arg >> IDE_NICE_1) & 1;
+
+        return 0;
+}
+
 int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device *bdev,
                         unsigned int cmd, unsigned long arg)
 {
@@ -583,9 +605,7 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                                 return -EINVAL;
                         return ide_get_identity_ioctl(drive, cmd, arg);
                 case HDIO_GET_NICE:
-                        return put_user(drive->dsc_overlap      <<      IDE_NICE_DSC_OVERLAP    |
-                                        drive->nice1 << IDE_NICE_1,
-                                        (long __user *) arg);
+                        return ide_get_nice_ioctl(drive, arg);
 #ifdef CONFIG_IDE_TASK_IOCTL
                 case HDIO_DRIVE_TASKFILE:
                         if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO))
@@ -608,17 +628,9 @@ int generic_ide_ioctl(ide_drive_t *drive, struct file *file, struct block_device
                                 return -EACCES;
                         return ide_task_ioctl(drive, cmd, arg);
                 case HDIO_SET_NICE:
-                        if (!capable(CAP_SYS_ADMIN)) return -EACCES;
-                        if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1))))
-                                return -EPERM;
-                        if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) &&
-                            (drive->media == ide_disk ||
-                             drive->media == ide_floppy ||
-                             drive->scsi))
-                                return -EPERM;
-                        drive->dsc_overlap = (arg >> IDE_NICE_DSC_OVERLAP) & 1;
-                        drive->nice1 = (arg >> IDE_NICE_1) & 1;
-                        return 0;
+                        if (!capable(CAP_SYS_ADMIN))
+                                return -EACCES;
+                        return ide_set_nice_ioctl(drive, arg);
                 case HDIO_DRIVE_RESET:
                         if (!capable(CAP_SYS_ADMIN))
                                 return -EACCES;