Re: [RFC] How to fix an async scan - 'rmmod --wait' race?

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On 04/18/12 16:48, Tomas Henzl wrote:

> And long term goal were not to use try_module_get in scsi_device_get ?


With a properly implemented eh_abort_handler the patch below should
avoid that error handler functions get invoked after scsi_remove_host()
finished. This patch needs further testing though - a similar patch has
been reverted in the beginning of 2011 (see also commit
09c9d4c9b6a2b5909ae3c6265e4cd3820b636863). So I'm not entirely sure
whether the patch below is the right approach.

diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 4aa41d1..c9f6000 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1691,6 +1691,7 @@ struct request_queue *scsi_alloc_queue(struct
scsi_device *sdev)
 void scsi_free_queue(struct request_queue *q)
 {
 	blk_cleanup_queue(q);
+	blk_abort_queue(q);
 }

 /*
-- 
1.7.7

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