On 8/16/19 1:35 AM, Christoph Hellwig wrote:
> Always try the native ioctl if we don't have a compat handler. This
> removes a lot of boilerplate code as 'modern' ioctls should generally
> be compat clean, and fixes the missing entries for the recently added
> FS_IOC_GETFSLABEL/FS_IOC_SETFSLABEL ioctls.
>
> Fixes: f7664b31975b ("xfs: implement online get/set fs label")
whoops
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>
> ---
> fs/xfs/xfs_ioctl32.c | 54 ++------------------------------------------
> 1 file changed, 2 insertions(+), 52 deletions(-)
>
> diff --git a/fs/xfs/xfs_ioctl32.c b/fs/xfs/xfs_ioctl32.c
> index 7fcf7569743f..bae08ef92ac3 100644
> --- a/fs/xfs/xfs_ioctl32.c
> +++ b/fs/xfs/xfs_ioctl32.c
> @@ -553,57 +553,6 @@ xfs_file_compat_ioctl(
> trace_xfs_file_compat_ioctl(ip);
>
> switch (cmd) {
> - /* No size or alignment issues on any arch */
> - case XFS_IOC_DIOINFO:
> - case XFS_IOC_FSGEOMETRY_V4:
> - case XFS_IOC_FSGEOMETRY:
> - case XFS_IOC_AG_GEOMETRY:
> - case XFS_IOC_FSGETXATTR:
> - case XFS_IOC_FSSETXATTR:
> - case XFS_IOC_FSGETXATTRA:
> - case XFS_IOC_FSSETDM:
> - case XFS_IOC_GETBMAP:
> - case XFS_IOC_GETBMAPA:
> - case XFS_IOC_GETBMAPX:
> - case XFS_IOC_FSCOUNTS:
> - case XFS_IOC_SET_RESBLKS:
> - case XFS_IOC_GET_RESBLKS:
> - case XFS_IOC_FSGROWFSLOG:
> - case XFS_IOC_GOINGDOWN:
> - case XFS_IOC_ERROR_INJECTION:
> - case XFS_IOC_ERROR_CLEARALL:
> - case FS_IOC_GETFSMAP:
> - case XFS_IOC_SCRUB_METADATA:
> - case XFS_IOC_BULKSTAT:
> - case XFS_IOC_INUMBERS:
> - return xfs_file_ioctl(filp, cmd, p);
> -#if !defined(BROKEN_X86_ALIGNMENT) || defined(CONFIG_X86_X32)
> - /*
> - * These are handled fine if no alignment issues. To support x32
> - * which uses native 64-bit alignment we must emit these cases in
> - * addition to the ia-32 compat set below.
> - */
> - case XFS_IOC_ALLOCSP:
> - case XFS_IOC_FREESP:
> - case XFS_IOC_RESVSP:
> - case XFS_IOC_UNRESVSP:
> - case XFS_IOC_ALLOCSP64:
> - case XFS_IOC_FREESP64:
> - case XFS_IOC_RESVSP64:
> - case XFS_IOC_UNRESVSP64:
> - case XFS_IOC_FSGEOMETRY_V1:
> - case XFS_IOC_FSGROWFSDATA:
> - case XFS_IOC_FSGROWFSRT:
> - case XFS_IOC_ZERO_RANGE:
> -#ifdef CONFIG_X86_X32
> - /*
> - * x32 special: this gets a different cmd number from the ia-32 compat
> - * case below; the associated data will match native 64-bit alignment.
> - */
> - case XFS_IOC_SWAPEXT:
> -#endif
> - return xfs_file_ioctl(filp, cmd, p);
> -#endif
> #if defined(BROKEN_X86_ALIGNMENT)
> case XFS_IOC_ALLOCSP_32:
> case XFS_IOC_FREESP_32:
> @@ -705,6 +654,7 @@ xfs_file_compat_ioctl(
> case XFS_IOC_FSSETDM_BY_HANDLE_32:
> return xfs_compat_fssetdm_by_handle(filp, arg);
> default:
> - return -ENOIOCTLCMD;
> + /* try the native version */
> + return xfs_file_ioctl(filp, cmd, p);
> }
> }
>
