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Date: Fri, 12 Aug 2011 12:03:34 +0800 From: Wang Shaoyan <stufever@...il.com> To: Adam M Belay <abelay@....edu> Cc: Bjorn Helgaas <bhelgaas@...gle.com>, linux-kernel@...r.kernel.org, Wang Shaoyan <wangshaoyan.pt@...bao.com>, linux-acpi@...r.kernel.org Subject: Re: [PATCH] pnp: replace deprecated __check_region to request_region Hi Adam, I can understand your worry, but back to beginning, just as the subject of the patch: "replace deprecated __check_region to request_region", I think this patch is still need, although it can't solve the problems both you guys mentioned. Do you agree it? 2011/8/12 Adam M Belay <abelay@....edu>: > Hi Wang, > > Yes, I think your description of the race condition is right. However, as > Bjorn > mentioned, there are many x86 init paths that will try to reserve the same > resources as those reported by pnp/acpi. There needs to be a better way to > coordinate legacy device enumeration. Otherwise, the request_region() calls > could fail when there isn't an actual resource conflict. > > IF we could find a good way to clean up the legacy users of request_region() > then we could probably make pnp behave more like pci with regard to resource > reservations. > > Cheers, > Adam -- Wang Shaoyan -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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