>>>>> "Christoph" == Christoph Hellwig <hch@xxxxxxxxxxxxx> 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 -- To unsubscribe from this list: send the line "unsubscribe linux-block" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html