[PATCH v2 3/8] Update PIDFD_* constants for Linux 6.11

[H.J. Lu]

On Wed, Oct 9, 2024 at 2:47 AM Adhemerval Zanella
<adhemerval.zanella@linaro.org> wrote:
>
> Linux 6.11 adds some more PIDFD_* constants for 'pidfs: allow retrieval
> of namespace file descriptors'
> (5b08bd408534bfb3a7cf5778da5b27d4e4fffe12).
>
> Tested with build-many-glibcs.py.
> ---
>  sysdeps/unix/sysv/linux/sys/pidfd.h         | 14 ++++++++++++++
>  sysdeps/unix/sysv/linux/tst-pidfd-consts.py |  2 +-
>  2 files changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/sysdeps/unix/sysv/linux/sys/pidfd.h b/sysdeps/unix/sysv/linux/sys/pidfd.h
> index 9f88d297e8..85d976939b 100644
> --- a/sysdeps/unix/sysv/linux/sys/pidfd.h
> +++ b/sysdeps/unix/sysv/linux/sys/pidfd.h
> @@ -20,6 +20,7 @@
>
>  #include <fcntl.h>
>  #include <bits/types/siginfo_t.h>
> +#include <sys/ioctl.h>
>
>  #define PIDFD_NONBLOCK O_NONBLOCK
>  #define PIDFD_THREAD O_EXCL
> @@ -28,6 +29,19 @@
>  #define PIDFD_SIGNAL_THREAD_GROUP (1UL << 1)
>  #define PIDFD_SIGNAL_PROCESS_GROUP (1UL << 2)
>
> +#define PIDFS_IOCTL_MAGIC 0xFF
> +
> +#define PIDFD_GET_CGROUP_NAMESPACE            _IO(PIDFS_IOCTL_MAGIC, 1)
> +#define PIDFD_GET_IPC_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 2)
> +#define PIDFD_GET_MNT_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 3)
> +#define PIDFD_GET_NET_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 4)
> +#define PIDFD_GET_PID_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 5)
> +#define PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE  _IO(PIDFS_IOCTL_MAGIC, 6)
> +#define PIDFD_GET_TIME_NAMESPACE              _IO(PIDFS_IOCTL_MAGIC, 7)
> +#define PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE _IO(PIDFS_IOCTL_MAGIC, 8)
> +#define PIDFD_GET_USER_NAMESPACE              _IO(PIDFS_IOCTL_MAGIC, 9)
> +#define PIDFD_GET_UTS_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 10)
> +
>  /* Returns a file descriptor that refers to the process PID.  The
>     close-on-exec is set on the file descriptor.  */
>  extern int pidfd_open (__pid_t __pid, unsigned int __flags) __THROW;
> diff --git a/sysdeps/unix/sysv/linux/tst-pidfd-consts.py b/sysdeps/unix/sysv/linux/tst-pidfd-consts.py
> index 9824fd214d..9d53102cbd 100644
> --- a/sysdeps/unix/sysv/linux/tst-pidfd-consts.py
> +++ b/sysdeps/unix/sysv/linux/tst-pidfd-consts.py
> @@ -39,7 +39,7 @@ def main():
>          sys.exit (77)
>
>      linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
> -    linux_version_glibc = (6, 10)
> +    linux_version_glibc = (6, 11)
>      sys.exit(glibcextract.compare_macro_consts(
>                  '#include <sys/pidfd.h>\n',
>                  '#include <asm/fcntl.h>\n'
> --
> 2.43.0
>

LGTM.

Reviewed-by: H.J. Lu <hjl.tools@gmail.com>

Thanks.

-- 
H.J.