Re: block: correctly fallback for zeroout

From
Martin K. Petersen <hidden>
Date
2016-06-10 02:05:55
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"Christoph" == Christoph Hellwig [off-list ref] writes:
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Userland apps rely on EOPNOTSUPP, we can't break that.
Christoph> Rely on what exactly?  Current we return EOPNOTSUPP if the
Christoph> device doesn't claim to support discards, but it returns 0 if
Christoph> the device first claims to support it but then fails the I/O.

Hopefully we can clean up this when/if we go the fallocate() route.

-- 
Martin K. Petersen	Oracle Linux Engineering
  






  

    
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