[libvirt] [PATCH] selinux: Only create the selabel_handle once.

[Daniel P. Berrange]

On Wed, Jan 23, 2013 at 08:12:25PM +0000, Richard W.M. Jones wrote:
> From: "Richard W.M. Jones" <rjones at redhat.com>
> 
> According to Eric Paris this is slightly more efficient because it
> only loads the regular expressions in libselinux once.
> ---
>  src/security/security_selinux.c | 20 +++++++++++++-------
>  1 file changed, 13 insertions(+), 7 deletions(-)
> 
> diff --git a/src/security/security_selinux.c b/src/security/security_selinux.c
> index a3ef728..8b88785 100644
> --- a/src/security/security_selinux.c
> +++ b/src/security/security_selinux.c
> @@ -935,20 +935,26 @@ virSecuritySELinuxFSetFilecon(int fd, char *tcon)
>      return 0;
>  }
>  
> +#if HAVE_SELINUX_LABEL_H
> +static struct selabel_handle *sehandle = NULL;
> +static virOnceControl sehandleonce = VIR_ONCE_CONTROL_INITIALIZER;
> +
> +static void
> +seHandleInit (void)
> +{
> +    sehandle = selabel_open(SELABEL_CTX_FILE, NULL, 0);
> +}
> +#endif

Eeek, please no more global variables - I only just finished removing
them all from this file. Put this in the virSecuritySELinuxData struct
instead.

Daniel
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