Re: [patch 3/4] fastboot: make the raid autodetect code wait forall devices to init

From: david
Date: Sun Jul 20 2008 - 19:12:26 EST

On Mon, 21 Jul 2008, Neil Brown wrote:

I must say that I think this is pretty horrible. But then it is a
pretty horrible problem and I don't think there is a clean solution.

If md in a module, this code won't run so there will be no change. If
md is compiled in, this code will silently slow down boot even if
there are no raid arrays to assemble. I think the "silently" is a
problem. I'm not looking forward to "my computer boots slower if I
compile md into the kernel" reports on linux-raid@vger.

What would you think of

if (driver_probe_done() != 0) {
printk("md: Waiting for all devices to be available before autodetect\n"
"md: If you don't boot off raid, use raid=noautodetect\n");
while (driver_probe_done() != 0);


even if you don't boot off of raid, if the boot process will mount a raid that's autodetected this will be a problem. so I think the message needs to allow for this.

David Lang

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