Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

[sfrench/cifs-2.6.git] / arch / um / os-Linux / start_up.c

diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c
index 5178eba9afa54fa779ab3af327e82259768d7fbf..79471f85eb8963d79654484fa3af9fd50aa5908b 100644 (file)
--- a/arch/um/os-Linux/start_up.c
+++ b/arch/um/os-Linux/start_up.c
@@ -17,10 +17,10 @@
 #include <sys/time.h>
 #include <sys/wait.h>
 #include <sys/mman.h>
+#include <sys/resource.h>
 #include <asm/unistd.h>
 #include <asm/page.h>
 #include <sys/types.h>
-#include "user_util.h"
 #include "kern_util.h"
 #include "user.h"
 #include "signal_kern.h"
@@ -329,8 +329,32 @@ static void __init check_ptrace(void)
 
 extern void check_tmpexec(void);
 
-void os_early_checks(void)
+static void __init check_coredump_limit(void)
 {
+       struct rlimit lim;
+       int err = getrlimit(RLIMIT_CORE, &lim);
+
+       if(err){
+               perror("Getting core dump limit");
+               return;
+       }
+
+       printf("Core dump limits :\n\tsoft - ");
+       if(lim.rlim_cur == RLIM_INFINITY)
+               printf("NONE\n");
+       else printf("%lu\n", lim.rlim_cur);
+
+       printf("\thard - ");
+       if(lim.rlim_max == RLIM_INFINITY)
+               printf("NONE\n");
+       else printf("%lu\n", lim.rlim_max);
+}
+
+void __init os_early_checks(void)
+{
+       /* Print out the core dump limits early */
+       check_coredump_limit();
+
        check_ptrace();
 
        /* Need to check this early because mmapping happens before the
@@ -528,148 +552,3 @@ int __init parse_iomem(char *str, int *add)
  out:
        return 1;
 }
-
-
-/* Changed during early boot */
-int pty_output_sigio = 0;
-int pty_close_sigio = 0;
-
-/* Used as a flag during SIGIO testing early in boot */
-static volatile int got_sigio = 0;
-
-static void __init handler(int sig)
-{
-       got_sigio = 1;
-}
-
-struct openpty_arg {
-       int master;
-       int slave;
-       int err;
-};
-
-static void openpty_cb(void *arg)
-{
-       struct openpty_arg *info = arg;
-
-       info->err = 0;
-       if(openpty(&info->master, &info->slave, NULL, NULL, NULL))
-               info->err = -errno;
-}
-
-static int async_pty(int master, int slave)
-{
-       int flags;
-
-       flags = fcntl(master, F_GETFL);
-       if(flags < 0)
-               return -errno;
-
-       if((fcntl(master, F_SETFL, flags | O_NONBLOCK | O_ASYNC) < 0) ||
-          (fcntl(master, F_SETOWN, os_getpid()) < 0))
-               return -errno;
-
-       if((fcntl(slave, F_SETFL, flags | O_NONBLOCK) < 0))
-               return -errno;
-
-       return(0);
-}
-
-static void __init check_one_sigio(void (*proc)(int, int))
-{
-       struct sigaction old, new;
-       struct openpty_arg pty = { .master = -1, .slave = -1 };
-       int master, slave, err;
-
-       initial_thread_cb(openpty_cb, &pty);
-       if(pty.err){
-               printk("openpty failed, errno = %d\n", -pty.err);
-               return;
-       }
-
-       master = pty.master;
-       slave = pty.slave;
-
-       if((master == -1) || (slave == -1)){
-               printk("openpty failed to allocate a pty\n");
-               return;
-       }
-
-       /* Not now, but complain so we now where we failed. */
-       err = raw(master);
-       if (err < 0)
-               panic("check_sigio : __raw failed, errno = %d\n", -err);
-
-       err = async_pty(master, slave);
-       if(err < 0)
-               panic("tty_fds : sigio_async failed, err = %d\n", -err);
-
-       if(sigaction(SIGIO, NULL, &old) < 0)
-               panic("check_sigio : sigaction 1 failed, errno = %d\n", errno);
-       new = old;
-       new.sa_handler = handler;
-       if(sigaction(SIGIO, &new, NULL) < 0)
-               panic("check_sigio : sigaction 2 failed, errno = %d\n", errno);
-
-       got_sigio = 0;
-       (*proc)(master, slave);
-
-       close(master);
-       close(slave);
-
-       if(sigaction(SIGIO, &old, NULL) < 0)
-               panic("check_sigio : sigaction 3 failed, errno = %d\n", errno);
-}
-
-static void tty_output(int master, int slave)
-{
-       int n;
-       char buf[512];
-
-       printk("Checking that host ptys support output SIGIO...");
-
-       memset(buf, 0, sizeof(buf));
-
-       while(os_write_file(master, buf, sizeof(buf)) > 0) ;
-       if(errno != EAGAIN)
-               panic("check_sigio : write failed, errno = %d\n", errno);
-       while(((n = os_read_file(slave, buf, sizeof(buf))) > 0) && !got_sigio) ;
-
-       if(got_sigio){
-               printk("Yes\n");
-               pty_output_sigio = 1;
-       }
-       else if(n == -EAGAIN) printk("No, enabling workaround\n");
-       else panic("check_sigio : read failed, err = %d\n", n);
-}
-
-static void tty_close(int master, int slave)
-{
-       printk("Checking that host ptys support SIGIO on close...");
-
-       close(slave);
-       if(got_sigio){
-               printk("Yes\n");
-               pty_close_sigio = 1;
-       }
-       else printk("No, enabling workaround\n");
-}
-
-void __init check_sigio(void)
-{
-       if((os_access("/dev/ptmx", OS_ACC_R_OK) < 0) &&
-          (os_access("/dev/ptyp0", OS_ACC_R_OK) < 0)){
-               printk("No pseudo-terminals available - skipping pty SIGIO "
-                      "check\n");
-               return;
-       }
-       check_one_sigio(tty_output);
-       check_one_sigio(tty_close);
-}
-
-void os_check_bugs(void)
-{
-       check_ptrace();
-       check_sigio();
-}
-