uml: eliminate SIGALRM

[linux-2.6] / arch / um / os-Linux / irq.c

diff --git a/arch/um/os-Linux/irq.c b/arch/um/os-Linux/irq.c
index a97206df5b52068ffe20b3b0979653c4e384d28b..6aa6f95d652491ab4e1161247febeaa1c91856c1 100644 (file)
--- a/arch/um/os-Linux/irq.c
+++ b/arch/um/os-Linux/irq.c
@@ -11,14 +11,18 @@
 #include <sys/poll.h>
 #include <sys/types.h>
 #include <sys/time.h>
-#include "user_util.h"
 #include "kern_util.h"
 #include "user.h"
 #include "process.h"
 #include "sigio.h"
 #include "irq_user.h"
 #include "os.h"
+#include "um_malloc.h"
 
+/*
+ * Locked by irq_lock in arch/um/kernel/irq.c.  Changed by os_create_pollfd
+ * and os_free_irq_by_cb, which are called under irq_lock.
+ */
 static struct pollfd *pollfds = NULL;
 static int pollfds_num = 0;
 static int pollfds_size = 0;
@@ -57,7 +61,7 @@ int os_create_pollfd(int fd, int events, void *tmp_pfd, int size_tmpfds)
        if (pollfds_num == pollfds_size) {
                if (size_tmpfds <= pollfds_size * sizeof(pollfds[0])) {
                        /* return min size needed for new pollfds area */
-                       return((pollfds_size + 1) * sizeof(pollfds[0]));
+                       return (pollfds_size + 1) * sizeof(pollfds[0]);
                }
 
                if (pollfds != NULL) {
@@ -141,11 +145,7 @@ void init_irq_signals(int on_sigstack)
 
        flags = on_sigstack ? SA_ONSTACK : 0;
 
-       set_handler(SIGVTALRM, (__sighandler_t) alarm_handler,
-                   flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
-       set_handler(SIGALRM, (__sighandler_t) alarm_handler,
-                   flags | SA_RESTART, SIGUSR1, SIGIO, SIGWINCH, SIGALRM, -1);
        set_handler(SIGIO, (__sighandler_t) sig_handler, flags | SA_RESTART,
-                   SIGUSR1, SIGIO, SIGWINCH, SIGALRM, SIGVTALRM, -1);
+                   SIGUSR1, SIGIO, SIGWINCH, SIGVTALRM, -1);
        signal(SIGWINCH, SIG_IGN);
 }