On Thu, 2006-08-03 at 12:33 +0900, KAMEZAWA Hiroyuki wrote:
> find_next_system_ram() returns valid memory range which meets requested
> area, only used by memory-hot-add.
> This function always rewrite requested resource even if returned area is
> not fully fit in requested one. And sometimes the returnd resource is larger
> than requested area. This annoyes the caller.
> This patch changes the returned value to fit in requested area.
>
> Signed-Off-By: KAMEZAWA Hiroyuki <[email protected]>
>
> kernel/resource.c | 6 ++++--
> 1 files changed, 4 insertions(+), 2 deletions(-)
>
> Index: linux-2.6.18-rc3/kernel/resource.c
> ===================================================================
> --- linux-2.6.18-rc3.orig/kernel/resource.c 2006-08-01 16:11:56.000000000 +0900
> +++ linux-2.6.18-rc3/kernel/resource.c 2006-08-01 16:38:45.000000000 +0900
> @@ -261,8 +261,10 @@
> if (!p)
> return -1;
> /* copy data */
> - res->start = p->start;
> - res->end = p->end;
> + if (res->start < p->start)
> + res->start = p->start;
> + if (res->end > p->end)
> + res->end = p->end;
> return 0;
> }
> #endif
This is a needed fix for me. It looks and works great on x86_64.
Acked-By: Keith Mannthey <[email protected]>
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