On Wed, 2014-05-28 at 23:52 -0400, Martin K. Petersen wrote: > For commands like REQ_COPY we need a way to pass extra information along > with each bio. Like integrity metadata this information must be > available at the bottom of the stack so bi_private does not suffice. > > Rename the existing bi_integrity field to bi_special and make it a union > so we can have different bio extensions for each class of command. > > We previously used bi_integrity != NULL as a way to identify whether a > bio had integrity metadata or not. Introduce a REQ_INTEGRITY to be the > indicator now that bi_special can contain different things. > > In addition, bio_integrity(bio) will now return a pointer to the > integrity payload (when applicable). > > Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> > --- > Documentation/block/data-integrity.txt | 10 +++++----- > block/bio-integrity.c | 23 ++++++++++++----------- > drivers/scsi/sd_dif.c | 8 ++++---- > include/linux/bio.h | 10 +++++++--- > include/linux/blk_types.h | 8 ++++++-- > include/linux/blkdev.h | 7 ++----- > 6 files changed, 36 insertions(+), 30 deletions(-) > Looks fine. Reviewed-by: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx> -- 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
