7 files changed, 21 insertions, 8 deletions

diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 70880be26015..2617b1ed4709 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -18,12 +18,12 @@
 #include <linux/hdreg.h>        /* HDIO_GETGEO                      */
 #include <linux/bio.h>
 #include <linux/module.h>
+#include <linux/compat.h>
 #include <linux/init.h>
 
 #include <asm/debug.h>
 #include <asm/idals.h>
 #include <asm/ebcdic.h>
-#include <asm/compat.h>
 #include <asm/io.h>
 #include <asm/uaccess.h>
 #include <asm/cio.h>
diff --git a/drivers/s390/block/dasd_ioctl.c b/drivers/s390/block/dasd_ioctl.c
index f1a2016829fc..792c69e78fe2 100644
--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -13,6 +13,7 @@
 #define KMSG_COMPONENT "dasd"
 
 #include <linux/interrupt.h>
+#include <linux/compat.h>
 #include <linux/major.h>
 #include <linux/fs.h>
 #include <linux/blkpg.h>
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index 934458ad55e5..e71a50d4b221 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -87,6 +87,7 @@ struct raw3215_info {
         struct tty_struct *tty;       /* pointer to tty structure if present */
         struct raw3215_req *queued_read; /* pointer to queued read requests */
         struct raw3215_req *queued_write;/* pointer to queued write requests */
+        struct tasklet_struct tlet;   /* tasklet to invoke tty_wakeup */
         wait_queue_head_t empty_wait; /* wait queue for flushing */
         struct timer_list timer;      /* timer for delayed output */
         int line_pos;                 /* position on the line (for tabs) */
@@ -334,19 +335,23 @@ static inline void raw3215_try_io(struct raw3215_info *raw)
 }
 
 /*
+ * Call tty_wakeup from tasklet context
+ */
+static void raw3215_wakeup(unsigned long data)
+{
+        struct raw3215_info *raw = (struct raw3215_info *) data;
+        tty_wakeup(raw->tty);
+}
+
+/*
  * Try to start the next IO and wake up processes waiting on the tty.
  */
 static void raw3215_next_io(struct raw3215_info *raw)
 {
-        struct tty_struct *tty;
-
         raw3215_mk_write_req(raw);
         raw3215_try_io(raw);
-        tty = raw->tty;
-        if (tty != NULL &&
-            RAW3215_BUFFER_SIZE - raw->count >= RAW3215_MIN_SPACE) {
-                tty_wakeup(tty);
-        }
+        if (raw->tty && RAW3215_BUFFER_SIZE - raw->count >= RAW3215_MIN_SPACE)
+                tasklet_schedule(&raw->tlet);
 }
 
 /*
@@ -682,6 +687,7 @@ static int raw3215_probe (struct ccw_device *cdev)
                 return -ENOMEM;
         }
         init_waitqueue_head(&raw->empty_wait);
+        tasklet_init(&raw->tlet, raw3215_wakeup, (unsigned long) raw);
 
         dev_set_drvdata(&cdev->dev, raw);
         cdev->handler = raw3215_irq;
@@ -901,6 +907,7 @@ static int __init con3215_init(void)
 
         raw->flags |= RAW3215_FIXED;
         init_waitqueue_head(&raw->empty_wait);
+        tasklet_init(&raw->tlet, raw3215_wakeup, (unsigned long) raw);
 
         /* Request the console irq */
         if (raw3215_startup(raw) != 0) {
@@ -966,6 +973,7 @@ static void tty3215_close(struct tty_struct *tty, struct file * filp)
         tty->closing = 1;
         /* Shutdown the terminal */
         raw3215_shutdown(raw);
+        tasklet_kill(&raw->tlet);
         tty->closing = 0;
         raw->tty = NULL;
 }
diff --git a/drivers/s390/char/fs3270.c b/drivers/s390/char/fs3270.c
index e71298158f9e..911704571b9c 100644
--- a/drivers/s390/char/fs3270.c
+++ b/drivers/s390/char/fs3270.c
@@ -11,6 +11,7 @@
 #include <linux/console.h>
 #include <linux/init.h>
 #include <linux/interrupt.h>
+#include <linux/compat.h>
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/slab.h>
diff --git a/drivers/s390/char/vmcp.c b/drivers/s390/char/vmcp.c
index 75bde6a8b7dc..89c03e6b1c0c 100644
--- a/drivers/s390/char/vmcp.c
+++ b/drivers/s390/char/vmcp.c
@@ -13,6 +13,7 @@
 
 #include <linux/fs.h>
 #include <linux/init.h>
+#include <linux/compat.h>
 #include <linux/kernel.h>
 #include <linux/miscdevice.h>
 #include <linux/slab.h>
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 0c87b0fc7714..8f9a1a384496 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -8,6 +8,7 @@
  */
 
 #include <linux/slab.h>
+#include <linux/compat.h>
 #include <linux/device.h>
 #include <linux/module.h>
 #include <linux/uaccess.h>
diff --git a/drivers/s390/scsi/zfcp_cfdc.c b/drivers/s390/scsi/zfcp_cfdc.c
index 303dde09d294..fab2c2592a97 100644
--- a/drivers/s390/scsi/zfcp_cfdc.c
+++ b/drivers/s390/scsi/zfcp_cfdc.c
@@ -11,6 +11,7 @@
 #define KMSG_COMPONENT "zfcp"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
+#include <linux/compat.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/miscdevice.h>