Hi James,
The following patches export busy-status of SCSI LLD to request-based
dm-multipath for proper I/O scheduling.
The patches are created on the following commit of scsi-post-merge-2.6.
---------------------------------------------------------------
commit 454f40af9f0d4cda1c89e1fc0028d5235b150bc7
Author: Mike Christie <michaelc@xxxxxxxxxxx>
Date: Wed Sep 24 11:46:15 2008 -0500
libiscsi: fix locking in iscsi_eh_device_reset
---------------------------------------------------------------
The changes from the previous version (*) is to check the busy state
everytime instead of using a cached flag inside scsi.
Summary of the patches:
1/2: scsi: refactor sdev/starget/shost busy checking
2/2: scsi: export busy state via q->lld_busy_fn()
Please review and apply.
Thanks,
Kiyoshi Ueda
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