From 95c54bc81791c210b131f2b1013942487e74896f Mon Sep 17 00:00:00 2001 From: Christian Brauner Date: Mon, 25 Nov 2024 15:09:58 +0100 Subject: [PATCH] cred: return old creds from revert_creds_light() So we can easily convert revert_creds() callers over to drop the reference count explicitly. Link: https://lore.kernel.org/r/20241125-work-cred-v2-2-68b9d38bb5b2@kernel.org Reviewed-by: Jeff Layton Reviewed-by: Jens Axboe Signed-off-by: Christian Brauner --- include/linux/cred.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/include/linux/cred.h b/include/linux/cred.h index b0bc1fea9ca05..57cf0256ea292 100644 --- a/include/linux/cred.h +++ b/include/linux/cred.h @@ -185,9 +185,12 @@ static inline const struct cred *override_creds_light(const struct cred *overrid return old; } -static inline void revert_creds_light(const struct cred *revert_cred) +static inline const struct cred *revert_creds_light(const struct cred *revert_cred) { + const struct cred *override_cred = current->cred; + rcu_assign_pointer(current->cred, revert_cred); + return override_cred; } /** -- 2.47.3