On Fri, Dec 23, 2016 at 11:42:45AM -0800, Linus Torvalds wrote:
> Ugh. This patch is nasty.

It's the same SCSI has done for ages - except that is uses a separate
kmalloc for the sense buffer.

> I think we should just fix blk_execute_rq() instead.

As you found out below it's not just blk_execute_rq, it's the whole
architecture of the BLOCK_PC code, which expects a caller provided
sense buffer.  But with the way blk-mq allocates request structures
we can actually fix it, but I first need to extent the way it allows
drivers to allocate private data to the old request code.  I've
actually already implemented that for SCSI long time ago, and have
started to life it to the block layer.

Once that is done the callers won't need a sense buffer at all, and
can just look at the driver provided one.  Which currently is missing
in virtio-blk, so we'd need something similar to the above patch

You received this message because you are subscribed to the Google Groups 
"open-iscsi" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to open-iscsi+unsubscr...@googlegroups.com.
To post to this group, send email to open-iscsi@googlegroups.com.
Visit this group at https://groups.google.com/group/open-iscsi.
For more options, visit https://groups.google.com/d/optout.

Reply via email to