linux-kernel - Re: [PATCH 0/2] module_refcounting and anonymous inodes

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Message-Id: <200812101005.10492.sheng@linux.intel.com>
Date:	Wed, 10 Dec 2008 10:05:09 +0800
From:	Sheng Yang <sheng@...ux.intel.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	Christian Borntraeger <borntraeger@...ibm.com>,
	kvm@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 0/2] module_refcounting and anonymous inodes

On Tuesday 09 December 2008 21:22:42 Avi Kivity wrote:
> Avi Kivity wrote:
> > Christian Borntraeger wrote:
> >> The problem is, how do you detect if the base kernel has patch1 applied?
> >
> > In the external module compatibility kit, implement two versions of
> > anon_inode_getfd(), and select the appropriate one according to kernel
> > version (like we currently support 91 smp_call_function_single variants).
>
> I committed something simpler:  if running on 2.6.28 or earlier, I hack
> out the two lines your second patch adds.\

Good hack! 

> diff --git a/kernel/external-module-compat-comm.h
> b/kernel/external-module-compat-comm.h index a089f62..d90522d 100644
> --- a/kernel/external-module-compat-comm.h
> +++ b/kernel/external-module-compat-comm.h
> @@ -682,3 +682,13 @@ static inline void cpumask_clear_cpu(int cpu,
> cpumask_var_t mask)
>
>  #endif
>
> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)

But should it be 2,6,29?...

-- 
regards
Yang, Sheng

> +
> +#define IF_ANON_INODES_DOES_REFCOUNTS(x)
> +
> +#else
> +
> +#define IF_ANON_INODES_DOES_REFCOUNTS(x) x
> +
> +#endif
> +
--
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