Messages in this thread | | | Date | Wed, 15 Apr 2009 11:47:38 -0400 (EDT) | From | Alan Stern <> | Subject | Re: USB storage no-boot regression (bisected) |
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On Wed, 15 Apr 2009, Alan Cox wrote:
> Why should every user suffer a slower boot and a poorer resume time ? > > Instead make the root fs mounting look like this > > > while(my_rootfs_hasnt_appeared_and_i_am_sad()) { > wait_on(&new_disk_discovery); > } > > and poke the queue whenever we add a relevant device. > > That way if you are booting off an initrd you can finish the SATA probe > in parallel to getting userspace ticking over. > > On what is nowdays essentially a hot plug system it all needs turning > this way up - eg RAID volumes should assemble and come online as the > drives are discovered not at some fixed point later in userspace.
Indeed, something like this should also be used for resume-from-hibernation, to wait for the swap device.
Alan Stern
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