On Mar 25 12:56, Maxim Levitsky wrote: > On Mon, 2020-03-16 at 07:29 -0700, Klaus Jensen wrote: > > From: Klaus Jensen <k.jen...@samsung.com> > > > > Signed-off-by: Klaus Jensen <k.jen...@samsung.com> > > --- > > hw/block/nvme.c | 28 ++++++++++++++++++++++------ > > 1 file changed, 22 insertions(+), 6 deletions(-) > > > > diff --git a/hw/block/nvme.c b/hw/block/nvme.c > > index eecfad694bf8..ba520c76bae5 100644 > > --- a/hw/block/nvme.c > > +++ b/hw/block/nvme.c > > @@ -562,13 +577,14 @@ static uint16_t nvme_rw(NvmeCtrl *n, NvmeNamespace > > *ns, NvmeCmd *cmd, > > uint64_t data_offset = slba << data_shift; > > int is_write = rw->opcode == NVME_CMD_WRITE ? 1 : 0; > > enum BlockAcctType acct = is_write ? BLOCK_ACCT_WRITE : > > BLOCK_ACCT_READ; > > + uint16_t status; > > > > trace_nvme_dev_rw(is_write ? "write" : "read", nlb, data_size, slba); > > > > - if (unlikely((slba + nlb) > ns->id_ns.nsze)) { > > + status = nvme_check_bounds(n, ns, slba, nlb, req); > > + if (status) { > > block_acct_invalid(blk_get_stats(n->conf.blk), acct); > > - trace_nvme_dev_err_invalid_lba_range(slba, nlb, ns->id_ns.nsze); > > - return NVME_LBA_RANGE | NVME_DNR; > > + return status; > > } > > > > if (nvme_map(n, cmd, &req->qsg, &req->iov, data_size, req)) { > Looks good as well, once we get support for discard, it will > use this as well, but for now indeed only write zeros and read/write > need bounds checking on the IO path. >
I have that patch in the submission queue and the check is factored out there ;) > Reviewed-by: Maxim Levitsky <mlevi...@redhat.com> >