Tejun Heo wrote:
01_libata_add-ata_poll_qc_complete.patch
Previously, libata polling functions turned irq back on and
completed qc commands without holding host lock. This creates
a race condition between the polling task and interrupts from
other ports on the same host set or spurious interrupt from
itself.
This patch implements ata_poll_qc_complete which enables irq
and completes qc atomically and convert all polling functions.
Note: Unlike other functions, atapi_packet_task() didn't use
to turn irq back on on error exits. This patch makes it use
ata_poll_qc_complete, so irq is now turned back on on error
exits.
Note: With this change, ALL invocations of ata_qc_complete()
are now done under host_set lock.
Signed-off-by: Tejun Heo <[EMAIL PROTECTED]>
This one looks OK to me. Given that I rejected the other three, would
you still like me to apply just this one?
Jeff
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