[PATCH v2] liveupdate: Document that retrieve failure is permanent

[PATCH v2] liveupdate: Document that retrieve failure is permanent

[Tarun Sahu]

Signed-off-by: Tarun Sahu <tarunsahu@google.com>
---
 include/uapi/linux/liveupdate.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/include/uapi/linux/liveupdate.h b/include/uapi/linux/liveupdate.h
index 30bc66ee9436..d06aa24350b5 100644
--- a/include/uapi/linux/liveupdate.h
+++ b/include/uapi/linux/liveupdate.h
@@ -168,7 +168,9 @@ struct liveupdate_session_preserve_fd {
  * associated with the token and populates the @fd field with a new file
  * descriptor referencing the restored resource in the current (new) kernel.
  * This operation must be performed *before* signaling completion via
- * %LIVEUPDATE_IOCTL_FINISH.
+ * %LIVEUPDATE_IOCTL_FINISH. If a retrieve of a token fails, subsequent
+ * attempts to retrieve the token fail with the same error code. Failed
+ * retrieves are not retried.
  *
  * Return: 0 on success, negative error code on failure (e.g., invalid token).
  */

base-commit: 2d3090a8aeb596a26935db0955d46c9a5db5c6ce
-- 
2.54.0.1099.g489fc7bff1-goog

Re: [PATCH v2] liveupdate: Document that retrieve failure is permanent

[Pratyush Yadav]

On Thu, Jun 11 2026, Tarun Sahu wrote:

> Signed-off-by: Tarun Sahu <tarunsahu@google.com>

Reviewed-by: Pratyush Yadav (Google) <pratyush@kernel.org>

Thanks for the fix!

[...]

-- 
Regards,
Pratyush Yadav

Re: [PATCH v2] liveupdate: Document that retrieve failure is permanent

[Mike Rapoport]

On Thu, 11 Jun 2026 09:30:40 +0000, Tarun Sahu wrote:
> liveupdate: Document that retrieve failure is permanent

Applied to next branch of liveupdate/linux.git tree, thanks!

[1/1] liveupdate: Document that retrieve failure is permanent
      commit: e98a9c61721c14bcd29f11f4802e52e908701f7a

tree: https://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux
branch: next

--
Sincerely yours,
Mike.

Re: [PATCH v2] liveupdate: Document that retrieve failure is permanent

[Pasha Tatashin]

On 06-11 09:30, Tarun Sahu wrote:

Please include at least a sentence in the commit log.

Otherwise,
Reviewed-by: Pasha Tatashin <pasha.tatashin@soleen.com> 

> Signed-off-by: Tarun Sahu <tarunsahu@google.com>
> ---
>  include/uapi/linux/liveupdate.h | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/include/uapi/linux/liveupdate.h b/include/uapi/linux/liveupdate.h
> index 30bc66ee9436..d06aa24350b5 100644
> --- a/include/uapi/linux/liveupdate.h
> +++ b/include/uapi/linux/liveupdate.h
> @@ -168,7 +168,9 @@ struct liveupdate_session_preserve_fd {
>   * associated with the token and populates the @fd field with a new file
>   * descriptor referencing the restored resource in the current (new) kernel.
>   * This operation must be performed *before* signaling completion via
> - * %LIVEUPDATE_IOCTL_FINISH.
> + * %LIVEUPDATE_IOCTL_FINISH. If a retrieve of a token fails, subsequent
> + * attempts to retrieve the token fail with the same error code. Failed
> + * retrieves are not retried.


>   *
>   * Return: 0 on success, negative error code on failure (e.g., invalid token).
>   */
> 
> base-commit: 2d3090a8aeb596a26935db0955d46c9a5db5c6ce
> -- 
> 2.54.0.1099.g489fc7bff1-goog
>