On 05/09/2017 05:16 PM, Martin K. Petersen wrote:
Jes,
This is fine within the kernel, however it is not overly useful for
mdadm to determine which strategy to apply when syncing devices.
BLKZEROOUT
Trying to read the code, as this ioctl doesn't seem to be documented
anywhere I can find.... it looks like this ioctl zeroes out a device.
It doesn't help me obtain the information I need to make a decision in
mdadm as whether to overwrite all or compare+write when resyncing a RAID
array.
Jes
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