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6c7d49455c
The read and write commands don't define a 'result', so there's no need to copy it back to userspace. Remove the ability of the ioctl to submit commands to a different namespace; it's just asking for trouble, and the use case I have in mind will be addressed througha different ioctl in the future. That removes the need for both the block_shift and nsid arguments. Check that the opcode is one of 'read' or 'write'. Future opcodes may be added in the future, but we will need a different structure definition for them. The nblocks field is redefined to be 0-based. This allows the user to request the full 65536 blocks. Don't byteswap the reftag, apptag and appmask. Martin Petersen tells me these are calculated in big-endian and are transmitted to the device in big-endian. Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com> |
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