userns: Remove unnecessary cast to struct user_struct when copying cred->user. (74ba508f) · Commits · 戴 / test

In struct cred the user member is and has always been declared struct user_struct *user. At most a constant struct cred will have a constant pointer to non-constant user_struct so remove this unnecessary cast. Acked-by:

Serge Hallyn <serge.hallyn@canonical.com> Signed-off-by:

Eric W. Biederman <ebiederm@xmission.com>

kernel/sys.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -209,7 +209,7 @@ SYSCALL_DEFINE3(setpriority, int, which, int, who, int, niceval)
		} while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
		break;
		case PRIO_USER:
		user = (struct user_struct *) cred->user;
		user = cred->user;
		if (!who)
		who = cred->uid;
		else if ((who != cred->uid) &&
		@@ -274,7 +274,7 @@ SYSCALL_DEFINE2(getpriority, int, which, int, who)
		} while_each_pid_thread(pgrp, PIDTYPE_PGID, p);
		break;
		case PRIO_USER:
		user = (struct user_struct *) cred->user;
		user = cred->user;
		if (!who)
		who = cred->uid;
		else if ((who != cred->uid) &&

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