Messages in this thread | | | Subject | Re: block: correctly fallback for zeroout | From | "Martin K. Petersen" <> | Date | Thu, 09 Jun 2016 22:05:21 -0400 |
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>>>>> "Christoph" == Christoph Hellwig <hch@infradead.org> writes:
>> 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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