>>>>> "Christoph" == Christoph Hellwig <hch@xxxxxx> writes: Christoph> Simplify handling of discard requests by setting up the Christoph> command directly instead of initializing request fields and Christoph> then calling scsi_setup_blk_pc_cmnd to propagate the Christoph> information into the command. Would be nice to add a comment similar to the WRITE SAME one. Something like: /* * Initially __data_len is set to the amount of data that needs to be * transferred to the target. This amount depends on whether WRITE SAME * or UNMAP is being used. After the scatterlist has been mapped by * scsi_init_io() we set __data_len to the size of the area to be * discarded on disk. This allows us to report completion on the full * amount of blocks described by the request. */ Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
