• Matthew Wilcox's avatar
    [SCSI] Add ability to scan scsi busses asynchronously · 3e082a91
    Matthew Wilcox authored
    
    
    Since it often takes around 20-30 seconds to scan a scsi bus, it's
    highly advantageous to do this in parallel with other things.  The bulk
    of this patch is ensuring that devices don't change numbering, and that
    all devices are discovered prior to trying to start init.  For those
    who build SCSI as modules, there's a new scsi_wait_scan module that will
    ensure all bus scans are finished.
    
    This patch only handles drivers which call scsi_scan_host.  Fibre Channel,
    SAS, SATA, USB and Firewire all need additional work.
    Signed-off-by: default avatarMatthew Wilcox <matthew@wil.cx>
    Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
    3e082a91