Re: [PATCH 05/13] tools headers uapi: Sync linux/fcntl.h to get the F_SEAL_FUTURE_WRITE addition

Joel Fernandes
2019-03-29T14:24:31Z

On Fri, Mar 29, 2019 at 10:37:53AM -0300, Arnaldo Carvalho de Melo wrote:
> From: Arnaldo Carvalho de Melo <acme@redhat.com>
>
> To get the changes in:
>
> ab3948f58ff8 ("mm/memfd: add an F_SEAL_FUTURE_WRITE seal to memfd")
>
> And silence this perf build warning:
>
> Warning: Kernel ABI header at 'tools/include/uapi/linux/fcntl.h' differs from latest version at 'include/uapi/linux/fcntl.h'
> diff -u tools/include/uapi/linux/fcntl.h include/uapi/linux/fcntl.h
>
> Cc: Adrian Hunter <adrian.hunter@intel.com>
> Cc: Jiri Olsa <jolsa@kernel.org>
> Cc: Joel Fernandes (Google) <joel@joelfernandes.org>
> Cc: Linus Torvalds <torvalds@linux-foundation.org>
> Cc: Namhyung Kim <namhyung@kernel.org>
> Link: https://lkml.kernel.org/n/tip-lvfx5cgf0xzmdi9mcjva1ttl@git.kernel.org
> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

Acked-by: Joel Fernandes (Google) <joel@joelfernandes.org>

thanks!

- Joel

> ---
> tools/include/uapi/linux/fcntl.h | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/tools/include/uapi/linux/fcntl.h b/tools/include/uapi/linux/fcntl.h
> index 6448cdd9a350..a2f8658f1c55 100644
> --- a/tools/include/uapi/linux/fcntl.h
> +++ b/tools/include/uapi/linux/fcntl.h
> @@ -41,6 +41,7 @@
> #define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
> #define F_SEAL_GROW 0x0004 /* prevent file from growing */
> #define F_SEAL_WRITE 0x0008 /* prevent writes */
> +#define F_SEAL_FUTURE_WRITE 0x0010 /* prevent future writes while mapped */
> /* (1U << 31) is reserved for signed error codes */
>
> /*
> --
> 2.20.1
>