2011/9/29 Luca Tettamanti <kronos...@gmail.com>: > On Thu, Sep 29, 2011 at 5:47 PM, Luca Tettamanti <kronos...@gmail.com> wrote: >> On Thu, Sep 29, 2011 at 11:29 AM, Barry Song <barry.s...@csr.com> wrote: >>> From: Barry Song <baohua.s...@csr.com> >>> >>> Some devices like mmc are async detected very slow. For example, >>> drivers/mmc/host/sdhci.c launchs a 200ms delayed work to detect >>> mmc partitions then add disk. >>> >>> we do have wait_for_device_probe and scsi_complete_async_scans >>> before calling swsusp_check, but it is not enough to wait mmc. >>> >>> This patch adds resumewait kernel param just like rootwait so >>> that we have enough time to wait mmc ready. The differene is >>> here we wait for resume partition but rootwait waits for rootfs >>> partition. >> >> I assume that such a device would need "rootwait" to boot in the first >> place; why don't you "overload" the param to also enable waiting in >> the resume path? > > And in case that makes sense, it might be worthwhile to refactor a > common helper to be also used in do_mounts.c, e.g. > dev_t wait_for_device(char *name)
it is ok until we have many cases which wait for devices by polling. but there are only two by the moment. here i don't see it is worthwhile since the current codes are short and clear enough. > > L -barry -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
