[LV-kern-commit] kernel-2.4/drivers/char Makefile,1.8,1.9 tty_io.c,1.11,1.12

[<ai...@us...>]

Update of /cvsroot/linux-vax/kernel-2.4/drivers/char
In directory sc8-pr-cvs1:/tmp/cvs-serv26117/drivers/char

Modified Files:
	Makefile tty_io.c 
Log Message:
Merge 2.4.21 - build fixes

Index: Makefile
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/drivers/char/Makefile,v
retrieving revision 1.8
retrieving revision 1.9
diff -u -d -r1.8 -r1.9
--- Makefile	27 Sep 2003 07:43:27 -0000	1.8
+++ Makefile	27 Sep 2003 09:21:13 -0000	1.9
@@ -24,7 +24,7 @@
 export-objs     :=	busmouse.o console.o keyboard.o sysrq.o \
 			misc.o pty.o random.o selection.o serial.o \
 			sonypi.o tty_io.o tty_ioctl.o generic_serial.o \
-			au1000_gpio.o hp_psaux.o nvram.o
+			au1000_gpio.o hp_psaux.o nvram.o scx200.o
 
 mod-subdirs	:=	joystick ftape drm drm-4.0 pcmcia
 
@@ -66,6 +66,20 @@
    SERIAL   =
 endif
 
+ifeq ($(ARCH),parisc)
+   ifdef CONFIG_GSC_PS2
+      KEYBD   = hp_psaux.o hp_keyb.o
+   else
+      KEYBD   =
+   endif
+   ifdef CONFIG_SERIAL_MUX
+      CONSOLE += mux.o
+   endif
+   ifdef CONFIG_PDC_CONSOLE
+      CONSOLE += pdc_console.o
+   endif
+endif
+
 ifdef CONFIG_Q40
   KEYBD += q40_keyb.o
   SERIAL = serial.o
@@ -208,6 +222,7 @@
 obj-$(CONFIG_ATIXL_BUSMOUSE) += atixlmouse.o
 obj-$(CONFIG_LOGIBUSMOUSE) += logibusmouse.o
 obj-$(CONFIG_PRINTER) += lp.o
+obj-$(CONFIG_TIPAR) += tipar.o
 
 ifeq ($(CONFIG_INPUT),y)
 obj-y += joystick/js.o
@@ -226,6 +241,7 @@
 obj-$(CONFIG_PC110_PAD) += pc110pad.o
 obj-$(CONFIG_MK712_MOUSE) += mk712.o
 obj-$(CONFIG_RTC) += rtc.o
+obj-$(CONFIG_GEN_RTC) += genrtc.o
 obj-$(CONFIG_EFI_RTC) += efirtc.o
 ifeq ($(CONFIG_PPC),)
   obj-$(CONFIG_NVRAM) += nvram.o
@@ -260,6 +276,7 @@
 obj-$(CONFIG_SERIAL_IPR) += generic_serial.o
 obj-$(CONFIG_NWBUTTON) += nwbutton.o
 obj-$(CONFIG_NWFLASH) += nwflash.o
+obj-$(CONFIG_SCx200_GPIO) += scx200_gpio.o scx200.o
 
 # Only one watchdog can succeed. We probe the hardware watchdog
 # drivers first, then the softdog driver.  This means if your hardware
@@ -283,9 +300,10 @@
 obj-$(CONFIG_SH_WDT) += shwdt.o
 obj-$(CONFIG_EUROTECH_WDT) += eurotechwdt.o
 obj-$(CONFIG_ALIM7101_WDT) += alim7101_wdt.o
-#obj-$(CONFIG_ALIM1535_WDT) += alim1535d_wdt.o
+obj-$(CONFIG_ALIM1535_WDT) += alim1535d_wdt.o
 obj-$(CONFIG_INDYDOG) += indydog.o
 obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
+obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
 obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
 obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
 obj-$(CONFIG_AMD7XX_TCO) += amd7xx_tco.o
@@ -293,6 +311,11 @@
 subdir-$(CONFIG_MWAVE) += mwave
 ifeq ($(CONFIG_MWAVE),y)
   obj-y += mwave/mwave.o
+endif
+
+subdir-$(CONFIG_IPMI_HANDLER) += ipmi
+ifeq ($(CONFIG_IPMI_HANDLER),y)
+  obj-y += ipmi/ipmi.o
 endif
 
 include $(TOPDIR)/Rules.make

Index: tty_io.c
===================================================================
RCS file: /cvsroot/linux-vax/kernel-2.4/drivers/char/tty_io.c,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -d -r1.11 -r1.12
--- tty_io.c	27 Sep 2003 07:43:27 -0000	1.11
+++ tty_io.c	27 Sep 2003 09:21:13 -0000	1.12
@@ -127,12 +127,6 @@
 extern struct tty_driver pts_driver[];	/* Unix98 pty slaves;  for /dev/ptmx */
 #endif
 
-/*
- * redirect is the pseudo-tty that console output
- * is redirected to if asked by TIOCCONS.
- */
-struct tty_struct * redirect;
-
 static void initialize_tty_struct(struct tty_struct *tty);
 
 static ssize_t tty_read(struct file *, char *, size_t, loff_t *);
@@ -427,6 +421,8 @@
 	release:	tty_release,
 };
 
+static spinlock_t redirect_lock = SPIN_LOCK_UNLOCKED;
+static struct file *redirect;
 /*
  * This can be called by the "eventd" kernel thread.  That is process synchronous,
  * but doesn't hold any locks, so we need to make sure we have the appropriate
@@ -436,6 +432,7 @@
 {
 	struct tty_struct *tty = (struct tty_struct *) data;
 	struct file * cons_filp = NULL;
+	struct file *f = NULL;
 	struct task_struct *p;
 	struct list_head *l;
 	int    closecount = 0, n;
@@ -445,6 +442,15 @@
 
 	/* inuse_filps is protected by the single kernel lock */
 	lock_kernel();
+
+	spin_lock(&redirect_lock);
+	if (redirect && redirect->private_data == tty) {
+		f = redirect;
+		redirect = NULL;
+	}
+	spin_unlock(&redirect_lock);
+	if (f)
+		fput(f);
 	
 	check_tty_count(tty, "do_tty_hangup");
 	file_list_lock();
@@ -743,7 +749,7 @@
 {
 	int is_console;
 	struct tty_struct * tty;
-	struct inode *inode;
+	struct inode *inode = file->f_dentry->d_inode;
 
 	/* Can't seek (pwrite) on ttys.  */
 	if (ppos != &file->f_pos)
@@ -757,10 +763,24 @@
 	is_console = (inode->i_rdev == SYSCONS_DEV ||
 		      inode->i_rdev == CONSOLE_DEV);
 
-	if (is_console && redirect)
-		tty = redirect;
-	else
-		tty = (struct tty_struct *)file->private_data;
+	if (is_console) {
+		struct file *p = NULL;
+
+		spin_lock(&redirect_lock);
+		if (redirect) {
+			get_file(redirect);
+			p = redirect;
+		}
+		spin_unlock(&redirect_lock);
+
+		if (p) {
+			ssize_t res = p->f_op->write(p, buf, count, &p->f_pos);
+			fput(p);
+			return res;
+		}
+	}
+
+	tty = (struct tty_struct *)file->private_data;
 	if (tty_paranoia_check(tty, inode->i_rdev, "tty_write"))
 		return -EIO;
 	if (!tty || !tty->driver.write || (test_bit(TTY_IO_ERROR, &tty->flags)))
@@ -1223,7 +1243,7 @@
 	/*
 	 * If _either_ side is closing, make sure there aren't any
 	 * processes that still think tty or o_tty is their controlling
-	 * tty.  Also, clear redirect if it points to either tty.
+	 * tty.
 	 */
 	if (tty_closing || o_tty_closing) {
 		struct task_struct *p;
@@ -1234,9 +1254,6 @@
 				p->tty = NULL;
 		}
 		read_unlock(&tasklist_lock);
-
-		if (redirect == tty || (o_tty && redirect == o_tty))
-			redirect = NULL;
 	}
 
 	/* check whether both sides are closing ... */
@@ -1515,19 +1532,29 @@
 	return 0;
 }
 
-static int tioccons(struct inode *inode,
-	struct tty_struct *tty, struct tty_struct *real_tty)
+static int tioccons(struct inode *inode, struct file *file)
 {
 	if (inode->i_rdev == SYSCONS_DEV ||
 	    inode->i_rdev == CONSOLE_DEV) {
+		struct file *f;
 		if (!suser())
 			return -EPERM;
+		spin_lock(&redirect_lock);
+		f = redirect;
 		redirect = NULL;
+		spin_unlock(&redirect_lock);
+		if (f)
+			fput(f);
 		return 0;
 	}
-	if (redirect)
+	spin_lock(&redirect_lock);
+	if (redirect) {
+		spin_unlock(&redirect_lock);
 		return -EBUSY;
-	redirect = real_tty;
+	}
+	get_file(file);
+	redirect = file;
+	spin_unlock(&redirect_lock);
 	return 0;
 }
 
@@ -1747,7 +1774,7 @@
 		case TIOCSWINSZ:
 			return tiocswinsz(tty, real_tty, (struct winsize *) arg);
 		case TIOCCONS:
-			return tioccons(inode, tty, real_tty);
+			return real_tty!=tty ? -EINVAL : tioccons(inode, file);
 		case FIONBIO:
 			return fionbio(file, (int *) arg);
 		case TIOCEXCL: