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    Subject[PATCH 01/20] lightnvm: re-convert ppa format on I/O failure
    Date
    In case of a failure when submitting a request, convert the ppa_list
    addresses to the target format so that it can interpret ppas for
    recovery

    Signed-off-by: Javier González <javier@cnexlabs.com>
    Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
    ---
    drivers/lightnvm/core.c | 8 +++++++-
    1 file changed, 7 insertions(+), 1 deletion(-)

    diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c
    index 440deb54031a..9ff348f69370 100644
    --- a/drivers/lightnvm/core.c
    +++ b/drivers/lightnvm/core.c
    @@ -641,6 +641,7 @@ EXPORT_SYMBOL(nvm_max_phys_sects);
    int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
    {
    struct nvm_dev *dev = tgt_dev->parent;
    + int ret;

    if (!dev->ops->submit_io)
    return -ENODEV;
    @@ -648,7 +649,12 @@ int nvm_submit_io(struct nvm_tgt_dev *tgt_dev, struct nvm_rq *rqd)
    nvm_rq_tgt_to_dev(tgt_dev, rqd);

    rqd->dev = tgt_dev;
    - return dev->ops->submit_io(dev, rqd);
    +
    + /* In case of error, fail with right address format */
    + ret = dev->ops->submit_io(dev, rqd);
    + if (ret)
    + nvm_rq_dev_to_tgt(tgt_dev, rqd);
    + return ret;
    }
    EXPORT_SYMBOL(nvm_submit_io);

    --
    2.7.4
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