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SubjectKernel size increase of +256 KiB (was: Re: RPCSEC_GSS: Share all credential caches on a per-transport basis)
From
On Mon, Sep 9, 2013 at 6:57 PM, Linux Kernel Mailing List
<linux-kernel@vger.kernel.org> wrote:
> diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
> index 5ec15bb..dc4b449 100644
> --- a/net/sunrpc/auth_gss/auth_gss.c
> +++ b/net/sunrpc/auth_gss/auth_gss.c
> @@ -51,6 +51,7 @@
> #include <linux/sunrpc/rpc_pipe_fs.h>
> #include <linux/sunrpc/gss_api.h>
> #include <asm/uaccess.h>
> +#include <linux/hashtable.h>
>
> #include "../netns.h"
>
> @@ -71,6 +72,9 @@ static unsigned int gss_expired_cred_retry_delay = GSS_RETRY_EXPIRED;
> * using integrity (two 4-byte integers): */
> #define GSS_VERF_SLACK 100
>
> +static DEFINE_HASHTABLE(gss_auth_hash_table, 16);
> +static DEFINE_SPINLOCK(gss_auth_hash_lock);

Today's m68k/atari-defconfig kernel no longer boots, as it became larger than
4 MiB.

bloat-o-meter tells me:

function old new delta
gss_auth_hash_table - 262144 +262144

Woops...

Are you trying to game Tim's survey? ;-)
(question 13 at http://www.embeddedlinuxconference.com/cgi-bin/survey.cgi)

Can this memory be allocated dynamically / only when it's used?

Thanks!

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds


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