On Wed, Feb 16, 2022 at 09:12:21AM +0000, Chaitanya Kulkarni wrote: > but blk_rq_map_kern() does accept gfp_mask for exactly this same case > and that is passed on to the bio_copy_kern() unless I'm wrong here, > so you need to pass the __GFP_ZERO flag in the step 3 above > (sg_scsi_ioctl) and not force zzeroed allocation the generic API.. We only want the zeroing for the payload, and other callers have the same issue, so I think this patch is the right thing to do.
