signal: rename signandsets() to sigandnsets()

As Tejun and Linus pointed out, "nand" is the wrong name for "x & ~y",
it should be "andn". Rename signandsets() as suggested.

Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>

diff --git a/include/linux/signal.h b/include/linux/signal.h
index 782546d..7e25263 100644 (file)
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -123,13 +123,13 @@ _SIG_SET_BINOP(sigorsets, _sig_or)
 #define _sig_and(x,y)  ((x) & (y))
 _SIG_SET_BINOP(sigandsets, _sig_and)
 
-#define _sig_nand(x,y) ((x) & ~(y))
-_SIG_SET_BINOP(signandsets, _sig_nand)
+#define _sig_andn(x,y) ((x) & ~(y))
+_SIG_SET_BINOP(sigandnsets, _sig_andn)
 
 #undef _SIG_SET_BINOP
 #undef _sig_or
 #undef _sig_and
-#undef _sig_nand
+#undef _sig_andn
 
 #define _SIG_SET_OP(name, op)                                          \
 static inline void name(sigset_t *set)                                 \

diff --git a/kernel/signal.c b/kernel/signal.c
index 4d97e11..e7ee4e6 100644 (file)
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -669,7 +669,7 @@ static int rm_from_queue_full(sigset_t *mask, struct sigpending *s)
        if (sigisemptyset(&m))
                return 0;
 
-       signandsets(&s->signal, &s->signal, mask);
+       sigandnsets(&s->signal, &s->signal, mask);
        list_for_each_entry_safe(q, n, &s->list, list) {
                if (sigismember(mask, q->info.si_signo)) {
                        list_del_init(&q->list);
@@ -2304,7 +2304,7 @@ static void __set_task_blocked(struct task_struct *tsk, const sigset_t *newset)
        if (signal_pending(tsk) && !thread_group_empty(tsk)) {
                sigset_t newblocked;
                /* A set of now blocked but previously unblocked signals. */
-               signandsets(&newblocked, newset, &current->blocked);
+               sigandnsets(&newblocked, newset, &current->blocked);
                retarget_shared_pending(tsk, &newblocked);
        }
        tsk->blocked = *newset;
@@ -2349,7 +2349,7 @@ int sigprocmask(int how, sigset_t *set, sigset_t *oldset)
                sigorsets(&newset, &tsk->blocked, set);
                break;
        case SIG_UNBLOCK:
-               signandsets(&newset, &tsk->blocked, set);
+               sigandnsets(&newset, &tsk->blocked, set);
                break;
        case SIG_SETMASK:
                newset = *set;