Re: [PATCH] fs: remove qnx4 filesystem

[Anders Larsen]

On 2026-10-23 18:08 Breno Rodrigues Alves wrote:
> The qnx4 filesystem driver has been orphaned and unmaintained for
> decades.  Write support was removed in 2009 as it was never fully
> implemented and was broken.  The remaining code is read-only and has
> no active users.
> 
> Remove the driver entirely, along with its Kconfig entry,
> MAINTAINERS entry, and CREDITS entries.
> 
> The QNX4_SUPER_MAGIC value in include/uapi/linux/magic.h is kept for
> userspace ABI compatibility.  The UAPI format headers (qnx4_fs.h,
> qnxtypes.h) and defconfig cleanups will be sent separately.
> 
> Signed-off-by: Breno Rodrigues Alves <breno3011alves@xxxxxxxxx>
> ---
>  CREDITS          |   3 -
>  MAINTAINERS      |   8 -
>  fs/Kconfig       |   1 -
>  fs/Makefile      |   1 -
>  fs/qnx4/Kconfig  |  16 --
>  fs/qnx4/Makefile |   8 -
>  fs/qnx4/bitmap.c |  45 -----
>  fs/qnx4/dir.c    |  81 ---------
>  fs/qnx4/inode.c  | 436 -----------------------------------------------
>  fs/qnx4/namei.c  | 115 -------------
>  fs/qnx4/qnx4.h   | 106 ------------
>  fs/qnx6/Makefile |   2 +-
>  12 files changed, 1 insertion(+), 821 deletions(-)
>  delete mode 100644 fs/qnx4/Kconfig
>  delete mode 100644 fs/qnx4/Makefile
>  delete mode 100644 fs/qnx4/bitmap.c
>  delete mode 100644 fs/qnx4/dir.c
>  delete mode 100644 fs/qnx4/inode.c
>  delete mode 100644 fs/qnx4/namei.c
>  delete mode 100644 fs/qnx4/qnx4.h
> 
> diff --git a/CREDITS b/CREDITS
> index 882aad786df9..49296288adf4 100644
> --- a/CREDITS
> +++ b/CREDITS
> @@ -947,7 +947,6 @@ S: France
>  
>  N: Frank "Jedi/Sector One" Denis
>  E: j@xxxxxxxxxxxx
> -D: QNX4 filesystem
>  
>  N: Peter Denison
>  E: peterd@xxxxxxxxxxxxxxxxxx
> @@ -1341,7 +1340,6 @@ E: mid@xxxxxxxxxxxxx
>  
>  N: Richard "Scuba" A. Frowijn
>  E: scuba@xxxxxx
> -D: QNX4 filesystem
>  
>  N: Fernando Fuganti
>  E: fuganti@xxxxxxxxxxxxxxxx
> @@ -2392,7 +2390,6 @@ D: Scalability, Time subsystem
>  
>  N: Anders Larsen
>  E: al@xxxxxxxxxxx
> -D: QNX4 filesystem
>  
>  N: Paul Laufer
>  E: paul@xxxxxxxxxxxxx

As far as I can see in the git history, CREDITS entries are usually left
untouched when a driver or a subsystem is removed.
(Alternatively, you must remove the entire entry, not just the Description
line)

Other than that
Acked-by: Anders Larsen <al@xxxxxxxxxxx>