Messages in this thread Patch in this message | | | From | Matias Bjørling <> | Subject | [PATCH 1/5] lightnvm: handle submit_io failure | Date | Tue, 5 Apr 2016 16:55:27 +0200 |
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The device ->submit_io() callback might fail to submit I/O to device. In that case, the nvm_submit_ppa function should not wait for completion. Instead return the ->submit_io() error.
Signed-off-by: Matias Bjørling <m@bjorling.me> --- drivers/lightnvm/core.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/lightnvm/core.c b/drivers/lightnvm/core.c index 0dc9a80..c2ef53a 100644 --- a/drivers/lightnvm/core.c +++ b/drivers/lightnvm/core.c @@ -351,6 +351,11 @@ int nvm_submit_ppa(struct nvm_dev *dev, struct ppa_addr *ppa, int nr_ppas, nvm_generic_to_addr_mode(dev, &rqd); ret = dev->ops->submit_io(dev, &rqd); + if (ret) { + nvm_free_rqd_ppalist(dev, &rqd); + bio_put(bio); + return ret; + } /* Prevent hang_check timer from firing at us during very long I/O */ hang_check = sysctl_hung_task_timeout_secs; -- 2.1.4
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