diff mbox

[1/5] lightnvm: handle submit_io failure

Message ID 1459868131-15133-2-git-send-email-m@bjorling.me (mailing list archive)
State New, archived
Headers show

Commit Message

Matias Bjørling April 5, 2016, 2:55 p.m. UTC
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(+)

Comments

Johannes Thumshirn April 5, 2016, 3:04 p.m. UTC | #1
On 2016-04-05 16:55, Matias Bjørling wrote:
> 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;

Looks good,
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
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diff mbox

Patch

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;