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Re: [Xen-devel] [PATCH 1/3] Do not use DEFINE_RWLOCK Macro

To: Ben Guthro <bguthro@xxxxxxxxxxxxxxx>
From: Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>
Date: Wed, 29 Aug 2007 19:37:37 +0100
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Wed, 29 Aug 2007 11:36:12 -0700
List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On Wed, 2007-08-29 at 14:20 -0400, Ben Guthro wrote:
> Do not use the DEFINE_RWLOCK macro, as it is not available when compiled 
> against older kernels, such as SLES9's 2.6.5

Things like this should generally be done by adding a suitably guarded
definition of DEFINE_RWLOCK to the platform-compat.h header in
unmodified_drivers/linux-2.6/compat-include/xen/platform-compat.h.

Ian.

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