On Wed, 6 Dec 2006, James Bottomley wrote: > On Wed, 2006-12-06 at 12:21 -0500, Alan Stern wrote: > > So only the legacy sg character-device files need attention, which > > means > > that only the part of the patch affecting sg.c is necessary. The new > > SG_GET_MAX_TRANSFER_LENGTH ioctl can remain unimplemented by the > > block > > layer -- just as SG_[SG]ET_RESERVED_SIZE should be. > > > > How does that sound? > > Actually, I'd just connect sg up to the block ioctl ... it has a block > queue and valid parameters, so BLKSECTGET will work for it as well. I'd love to do that -- but blkdev_ioctl() wants inode->i_bdev to be set, and blkdev_locked_ioctl() uses it as the argument to bdev_get_queue(). So it won't work with sg, which uses character device nodes. How about adding BLKSECTGET to the list of commands accepted by sg_ioctl()? Alan Stern - 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
