Matthew Wilcox wrote:
On Mon, Aug 20, 2007 at 09:10:35AM -0400, James Smart wrote:
In testing 2.6.23-rc3, there is a small window where the async-per-target
scan of the transport can beat the call from the LLDD to scsi_scan_host().
I'd assumed that events wouldn't come in until ->scan_start was called.
I see lpfc doesn't have one; is it possible to restructure it to have one?
(In any case, good job tracking this down; it was really annoying me.)
Possibly we should be less forgiving, and require drivers to have a
scan_start, otherwise they can't avoid this race.
I am hitting this problem with qla4xxx (added async scanning to
2.6.25-rc). Was the final decision that we have to add a scan_start? I
did not see scan_start be made mandatory and I did not see James's patch
go in.
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