This patch set fix various problems spotted during T10/DIF integrity machinery testing. TOC: ## General bulletproof protection for block layer 0001 Guard bvec iteration logic ## Fix various bugs in T10/DIF/DIX infrastructure 0002 bio integrity: Do not allocate integrity context for 0003 bio integrity: save original iterator for verify stag 0004 bio integrity: bio_trim should truncate integrity vec 0005 bio integrity: fix interface for bio_integrity_trim ## Cleanup T10/DIF/DIX infrastructure 0006 bio integrity add bio_integrity_setup helper 0007 T10 Move opencoded contants to common header ## Fix tcm_fileio info leak 0008 tcm_fileio: Prevent information leak for short reads Testcase: http://marc.info/?l=linux-scsi&m=149087997013452&w=2
