Merge branch 'dev-5.10' into dev-5.10-inteldev-5.10-intel

Pull 5.10.67 stable from OpenBMC upstream.

Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>

1 files changed, 0 insertions, 41 deletions

diff --git a/kernel/cred.c b/kernel/cred.c
index 098213d4a39c..421b1149c651 100644
--- a/kernel/cred.c
+++ b/kernel/cred.c
@@ -60,7 +60,6 @@ struct cred init_cred = {
 	.user			= INIT_USER,
 	.user_ns		= &init_user_ns,
 	.group_info		= &init_groups,
-	.ucounts		= &init_ucounts,
 };
 
 static inline void set_cred_subscribers(struct cred *cred, int n)
@@ -120,8 +119,6 @@ static void put_cred_rcu(struct rcu_head *rcu)
 	if (cred->group_info)
 		put_group_info(cred->group_info);
 	free_uid(cred->user);
-	if (cred->ucounts)
-		put_ucounts(cred->ucounts);
 	put_user_ns(cred->user_ns);
 	kmem_cache_free(cred_jar, cred);
 }
@@ -225,7 +222,6 @@ struct cred *cred_alloc_blank(void)
 #ifdef CONFIG_DEBUG_CREDENTIALS
 	new->magic = CRED_MAGIC;
 #endif
-	new->ucounts = get_ucounts(&init_ucounts);
 
 	if (security_cred_alloc_blank(new, GFP_KERNEL_ACCOUNT) < 0)
 		goto error;
@@ -288,11 +284,6 @@ struct cred *prepare_creds(void)
 
 	if (security_prepare_creds(new, old, GFP_KERNEL_ACCOUNT) < 0)
 		goto error;
-
-	new->ucounts = get_ucounts(new->ucounts);
-	if (!new->ucounts)
-		goto error;
-
 	validate_creds(new);
 	return new;
 
@@ -372,9 +363,6 @@ int copy_creds(struct task_struct *p, unsigned long clone_flags)
 		ret = create_user_ns(new);
 		if (ret < 0)
 			goto error_put;
-		ret = set_cred_ucounts(new);
-		if (ret < 0)
-			goto error_put;
 	}
 
 #ifdef CONFIG_KEYS
@@ -665,31 +653,6 @@ int cred_fscmp(const struct cred *a, const struct cred *b)
 }
 EXPORT_SYMBOL(cred_fscmp);
 
-int set_cred_ucounts(struct cred *new)
-{
-	struct task_struct *task = current;
-	const struct cred *old = task->real_cred;
-	struct ucounts *old_ucounts = new->ucounts;
-
-	if (new->user == old->user && new->user_ns == old->user_ns)
-		return 0;
-
-	/*
-	 * This optimization is needed because alloc_ucounts() uses locks
-	 * for table lookups.
-	 */
-	if (old_ucounts && old_ucounts->ns == new->user_ns && uid_eq(old_ucounts->uid, new->euid))
-		return 0;
-
-	if (!(new->ucounts = alloc_ucounts(new->user_ns, new->euid)))
-		return -EAGAIN;
-
-	if (old_ucounts)
-		put_ucounts(old_ucounts);
-
-	return 0;
-}
-
 /*
  * initialise the credentials stuff
  */
@@ -756,10 +719,6 @@ struct cred *prepare_kernel_cred(struct task_struct *daemon)
 	if (security_prepare_creds(new, old, GFP_KERNEL_ACCOUNT) < 0)
 		goto error;
 
-	new->ucounts = get_ucounts(new->ucounts);
-	if (!new->ucounts)
-		goto error;
-
 	put_cred(old);
 	validate_creds(new);
 	return new;