| commit | 1bab0de0274fbe8c8ac92179e6705584c55ed169 | |
| author | Christoph Hellwig <hch@lst.de> | |
| Thu, 27 Aug 2015 12:16:54 +0000 (27 14:16 +0200) | ||
| committer | James Bottomley <JBottomley@Odin.com> | |
| Fri, 28 Aug 2015 20:14:54 +0000 (28 13:14 -0700) | ||
| tree | 3a2bbd51706e6ec0a279cbc0011d996de7320aa7 | treesnapshot (tar.gz zip) |
| parent | 36dd5acd196574d41de3e81d8264df475bbb7123 | commitdiff |
dm-mpath, scsi_dh: don't let dm detach device handlers
While allowing dm-mpath to attach device handlers is a functionality we need
for backwards compatibility reason there is no reason to reference count
them and detach them if dm-mpath stops using the device for some reason.
If the device handler works for the given device it can just stay attached,
and we can take the retain_hw_handler codepath.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Hannes Reinecke <hare@Suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
While allowing dm-mpath to attach device handlers is a functionality we need
for backwards compatibility reason there is no reason to reference count
them and detach them if dm-mpath stops using the device for some reason.
If the device handler works for the given device it can just stay attached,
and we can take the retain_hw_handler codepath.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Acked-by: Hannes Reinecke <hare@Suse.de>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
| drivers/md/dm-mpath.c | diffblobblamehistory | |
| drivers/scsi/device_handler/scsi_dh.c | diffblobblamehistory | |
| include/scsi/scsi_device.h | diffblobblamehistory | |
| include/scsi/scsi_dh.h | diffblobblamehistory |