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authorTarun Sahu <tarunsahu@google.com>2026-06-11 09:30:40 +0000
committerMike Rapoport (Microsoft) <rppt@kernel.org>2026-06-11 15:49:51 +0300
commite98a9c61721c14bcd29f11f4802e52e908701f7a (patch)
treeca0b09e671ffe3e7559b5cfedb10c092c1f32d9d /include
parent3a358c78093f98a70d84c934b7054f636bc846f2 (diff)
liveupdate: Document that retrieve failure is permanent
Signed-off-by: Tarun Sahu <tarunsahu@google.com> Reviewed-by: Pratyush Yadav (Google) <pratyush@kernel.org> Link: https://patch.msgid.link/faec5df2a3e90240cde5897bae2250cd7d44aeac.1781170056.git.tarunsahu@google.com Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/liveupdate.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/liveupdate.h b/include/uapi/linux/liveupdate.h
index 3a9ff53b02e0..4043d4038712 100644
--- a/include/uapi/linux/liveupdate.h
+++ b/include/uapi/linux/liveupdate.h
@@ -169,7 +169,9 @@ 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).
*/