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SubjectRe: [PATCH v3] mptfusion: enable no_write_same for vmware scsi disks
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>>>>> "Chris" == Chris J Arges <chris.j.arges@canonical.com> writes:

Chris> 1) Does this workaround make sense? Perhaps there is an easier
Chris> way?

One option is to ship a udev rule that disables write same on VMware
disks. However, I don't have a fundamental problem having a workaround
for this in the kernel.

Chris> 2) Do we expect changing max_write_same_blocks at the scsi_disk
Chris> level to propagate the right write_same flags to other layers
Chris> such as dm?

No, there's currently no way to communicate that the underlying topology
has changed.

--
Martin K. Petersen Oracle Linux Engineering


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