ide-disk_ioctl.c 993 B

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  1. // SPDX-License-Identifier: GPL-2.0
  2. #include <linux/kernel.h>
  3. #include <linux/ide.h>
  4. #include <linux/hdreg.h>
  5. #include <linux/mutex.h>
  6. #include "ide-disk.h"
  7. static DEFINE_MUTEX(ide_disk_ioctl_mutex);
  8. static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = {
  9. { HDIO_GET_ADDRESS, HDIO_SET_ADDRESS, &ide_devset_address },
  10. { HDIO_GET_MULTCOUNT, HDIO_SET_MULTCOUNT, &ide_devset_multcount },
  11. { HDIO_GET_NOWERR, HDIO_SET_NOWERR, &ide_devset_nowerr },
  12. { HDIO_GET_WCACHE, HDIO_SET_WCACHE, &ide_devset_wcache },
  13. { HDIO_GET_ACOUSTIC, HDIO_SET_ACOUSTIC, &ide_devset_acoustic },
  14. { 0 }
  15. };
  16. int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode,
  17. unsigned int cmd, unsigned long arg)
  18. {
  19. int err;
  20. mutex_lock(&ide_disk_ioctl_mutex);
  21. err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings);
  22. if (err != -EOPNOTSUPP)
  23. goto out;
  24. err = generic_ide_ioctl(drive, bdev, cmd, arg);
  25. out:
  26. mutex_unlock(&ide_disk_ioctl_mutex);
  27. return err;
  28. }