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IPv6 support for VServer
[linux-2.6.git]
/
drivers
/
char
/
hvc_console.c
diff --git
a/drivers/char/hvc_console.c
b/drivers/char/hvc_console.c
index
613d67f
..
cc2cd46
100644
(file)
--- a/
drivers/char/hvc_console.c
+++ b/
drivers/char/hvc_console.c
@@
-38,6
+38,7
@@
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/delay.h>
+#include <linux/freezer.h>
#include <asm/uaccess.h>
#include <asm/uaccess.h>
@@
-80,7
+81,8
@@
struct hvc_struct {
struct tty_struct *tty;
unsigned int count;
int do_wakeup;
struct tty_struct *tty;
unsigned int count;
int do_wakeup;
- char outbuf[N_OUTBUF] __ALIGNED__;
+ char *outbuf;
+ int outbuf_size;
int n_outbuf;
uint32_t vtermno;
struct hv_ops *ops;
int n_outbuf;
uint32_t vtermno;
struct hv_ops *ops;
@@
-293,7
+295,7
@@
static int hvc_poll(struct hvc_struct *hp);
* NOTE: This API isn't used if the console adapter doesn't support interrupts.
* In this case the console is poll driven.
*/
* NOTE: This API isn't used if the console adapter doesn't support interrupts.
* In this case the console is poll driven.
*/
-static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance
, struct pt_regs *regs
)
+static irqreturn_t hvc_handle_interrupt(int irq, void *dev_instance)
{
/* if hvc_poll request a repoll, then kick the hvcd thread */
if (hvc_poll(dev_instance))
{
/* if hvc_poll request a repoll, then kick the hvcd thread */
if (hvc_poll(dev_instance))
@@
-319,10
+321,8
@@
static int hvc_open(struct tty_struct *tty, struct file * filp)
struct kobject *kobjp;
/* Auto increments kobject reference if found. */
struct kobject *kobjp;
/* Auto increments kobject reference if found. */
- if (!(hp = hvc_get_by_index(tty->index))) {
- printk(KERN_WARNING "hvc_console: tty open failed, no vty associated with tty.\n");
+ if (!(hp = hvc_get_by_index(tty->index)))
return -ENODEV;
return -ENODEV;
- }
spin_lock_irqsave(&hp->lock, flags);
/* Check and then increment for fast path open. */
spin_lock_irqsave(&hp->lock, flags);
/* Check and then increment for fast path open. */
@@
-505,7
+505,7
@@
static int hvc_write(struct tty_struct *tty, const unsigned char *buf, int count
if (hp->n_outbuf > 0)
hvc_push(hp);
if (hp->n_outbuf > 0)
hvc_push(hp);
- while (count > 0 && (rsize =
N_OUTBUF
- hp->n_outbuf) > 0) {
+ while (count > 0 && (rsize =
hp->outbuf_size
- hp->n_outbuf) > 0) {
if (rsize > count)
rsize = count;
memcpy(hp->outbuf + hp->n_outbuf, buf, rsize);
if (rsize > count)
rsize = count;
memcpy(hp->outbuf + hp->n_outbuf, buf, rsize);
@@
-538,7
+538,7
@@
static int hvc_write_room(struct tty_struct *tty)
if (!hp)
return -1;
if (!hp)
return -1;
- return
N_OUTBUF
- hp->n_outbuf;
+ return
hp->outbuf_size
- hp->n_outbuf;
}
static int hvc_chars_in_buffer(struct tty_struct *tty)
}
static int hvc_chars_in_buffer(struct tty_struct *tty)
@@
-622,7
+622,7
@@
static int hvc_poll(struct hvc_struct *hp)
sysrq_pressed = 1;
continue;
} else if (sysrq_pressed) {
sysrq_pressed = 1;
continue;
} else if (sysrq_pressed) {
- handle_sysrq(buf[i],
NULL,
tty);
+ handle_sysrq(buf[i], tty);
sysrq_pressed = 0;
continue;
}
sysrq_pressed = 0;
continue;
}
@@
-697,7
+697,7
@@
int khvcd(void *unused)
return 0;
}
return 0;
}
-static struct tty_operations hvc_ops = {
+static
const
struct tty_operations hvc_ops = {
.open = hvc_open,
.close = hvc_close,
.write = hvc_write,
.open = hvc_open,
.close = hvc_close,
.write = hvc_write,
@@
-729,12
+729,13
@@
static struct kobj_type hvc_kobj_type = {
};
struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
};
struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
- struct hv_ops *ops)
+ struct hv_ops *ops
, int outbuf_size
)
{
struct hvc_struct *hp;
int i;
{
struct hvc_struct *hp;
int i;
- hp = kmalloc(sizeof(*hp), GFP_KERNEL);
+ hp = kmalloc(ALIGN(sizeof(*hp), sizeof(long)) + outbuf_size,
+ GFP_KERNEL);
if (!hp)
return ERR_PTR(-ENOMEM);
if (!hp)
return ERR_PTR(-ENOMEM);
@@
-743,6
+744,8
@@
struct hvc_struct __devinit *hvc_alloc(uint32_t vtermno, int irq,
hp->vtermno = vtermno;
hp->irq = irq;
hp->ops = ops;
hp->vtermno = vtermno;
hp->irq = irq;
hp->ops = ops;
+ hp->outbuf_size = outbuf_size;
+ hp->outbuf = &((char *)hp)[ALIGN(sizeof(*hp), sizeof(long))];
kobject_init(&hp->kobj);
hp->kobj.ktype = &hvc_kobj_type;
kobject_init(&hp->kobj);
hp->kobj.ktype = &hvc_kobj_type;