[Ocfs2-devel] [PATCH 13/30] ocfs2: Handle enum value FS_OCFS2

[Joel Becker]

On Thu, Dec 20, 2007 at 03:29:30PM -0800, Sunil Mushran wrote:
> Commit 0e03036c97b70b2602f7dedaa3a223ed7563c2c9 in mainline registers
> ocfs2 sysctl (FS_OCFS2) number under CTL_FS. This patch allows one to
> build ocfs2 with kernels having/not having this change.
> 
> Signed-off-by: Sunil Mushran <sunil.mushran at oracle.com>
Signed-off-by: Joel Becker <joel.becker at oracle.com>

> ---
>  Makefile                     |    3 ++-
>  configure.in                 |    5 +++++
>  kapi-compat/include/sysctl.h |    9 +++++++++
>  3 files changed, 16 insertions(+), 1 deletions(-)
>  create mode 100644 kapi-compat/include/sysctl.h
> 
> diff --git a/Makefile b/Makefile
> index 5c22979..6377ff9 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -17,7 +17,8 @@ KAPI_COMPAT_FILES = \
>  	kapi-compat/include/inc_nlink.h \
>  	kapi-compat/include/drop_nlink.h \
>  	kapi-compat/include/slab.h \
> -	kapi-compat/include/fstype.h
> +	kapi-compat/include/fstype.h \
> +	kapi-compat/include/sysctl.h
>  
>  PATCH_FILES =
>  
> diff --git a/configure.in b/configure.in
> index f1ca3e3..fdb188c 100644
> --- a/configure.in
> +++ b/configure.in
> @@ -209,6 +209,11 @@ OCFS2_CHECK_KERNEL([flag FS_RENAME_DOES_D_MOVE in fs.h], fs.h,
>    , fstype_compat_header="fstype.h", [FS_RENAME_DOES_D_MOVE])
>  KAPI_COMPAT_HEADERS="$KAPI_COMPAT_HEADERS $fstype_compat_header"
>  
> +sysctl_compat_header=""
> +OCFS2_CHECK_KERNEL([enum FS_OCFS2 in sysctl.h], sysctl.h,
> +  , sysctl_compat_header="sysctl.h", [FS_OCFS2])
> +KAPI_COMPAT_HEADERS="$KAPI_COMPAT_HEADERS $sysctl_compat_header"
> +
>  # using -include has two advantages:
>  #  the source doesn't need to know to include compat headers
>  #  the compat header file names don't go through the search path
> diff --git a/kapi-compat/include/sysctl.h b/kapi-compat/include/sysctl.h
> new file mode 100644
> index 0000000..73ed0a7
> --- /dev/null
> +++ b/kapi-compat/include/sysctl.h
> @@ -0,0 +1,9 @@
> +#ifndef KAPI_SYSCTL_H
> +#define KAPI_SYSCTL_H
> +
> +/* CTL_FS names: */
> +enum {
> +	FS_OCFS2=988,   /* ocfs2 */
> +};
> +
> +#endif
> -- 
> 1.5.2.5
> 
> 
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-- 

 Joel's Second Law:

	If a code change requires additional user setup, it is wrong.

Joel Becker
Principal Software Developer
Oracle
E-mail: joel.becker at oracle.com
Phone: (650) 506-8127