On Tue, Jan 20 2009, Boaz Harrosh wrote:
>
> If a bidi command was issued to a request_queue not mark as
> QUEUE_FLAG_BIDI. Issue an error report. This is a misconfiguration
> an administrator would like to know about, which is otherwise
> hard to detect.
At the very least, put rate limit on that printk.
>
> Signed-off-by: Boaz Harrosh <bharrosh@xxxxxxxxxxx>
> ---
> block/bsg.c | 2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
> diff --git a/block/bsg.c b/block/bsg.c
> index 44a2a0f..977547a 100644
> --- a/block/bsg.c
> +++ b/block/bsg.c
> @@ -270,6 +270,8 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm,
>
> if (rw == WRITE && hdr->din_xfer_len) {
> if (!test_bit(QUEUE_FLAG_BIDI, &q->queue_flags)) {
> + printk(KERN_ERR "bsg: Attempt to send a bidi command "
> + "to a none bidi device\n");
> ret = -EOPNOTSUPP;
> goto out;
> }
> --
> 1.6.0.1
>
--
Jens Axboe
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