Merge tag 'stream_open-5.2' of https://lab.nexedi.com/kirr/linux

Pull stream_open conversion from Kirill Smelkov:

 - remove unnecessary double nonseekable_open from drivers/char/dtlk.c
   as noticed by Pavel Machek while reviewing nonseekable_open ->
   stream_open mass conversion.

 - the mass conversion patch promised in commit 10dce8af3422 ("fs:
   stream_open - opener for stream-like files so that read and write can
   run simultaneously without deadlock") and is automatically generated
   by running

        $ make coccicheck MODE=patch COCCI=scripts/coccinelle/api/stream_open.cocci

   I've verified each generated change manually - that it is correct to
   convert - and each other nonseekable_open instance left - that it is
   either not correct to convert there, or that it is not converted due
   to current stream_open.cocci limitations. More details on this in the
   patch.

 - finally, change VFS to pass ppos=NULL into .read/.write for files
   that declare themselves streams. It was suggested by Rasmus Villemoes
   and makes sure that if ppos starts to be erroneously used in a stream
   file, such bug won't go unnoticed and will produce an oops instead of
   creating illusion of position change being taken into account.

   Note: this patch does not conflict with "fuse: Add FOPEN_STREAM to
   use stream_open()" that will be hopefully coming via FUSE tree,
   because fs/fuse/ uses new-style .read_iter/.write_iter, and for these
   accessors position is still passed as non-pointer kiocb.ki_pos .

* tag 'stream_open-5.2' of https://lab.nexedi.com/kirr/linux:
  vfs: pass ppos=NULL to .read()/.write() of FMODE_STREAM files
  *: convert stream-like files from nonseekable_open -> stream_open
  dtlk: remove double call to nonseekable_open

59 files changed, 65 insertions, 65 deletions

diff --git a/drivers/watchdog/acquirewdt.c b/drivers/watchdog/acquirewdt.c
index d6210d946082..957d1255d4ca 100644
--- a/drivers/watchdog/acquirewdt.c
+++ b/drivers/watchdog/acquirewdt.c
@@ -200,7 +200,7 @@ static int acq_open(struct inode *inode, struct file *file)
 
 	/* Activate */
 	acq_keepalive();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int acq_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/advantechwdt.c b/drivers/watchdog/advantechwdt.c
index f61944369c1a..2766af292a71 100644
--- a/drivers/watchdog/advantechwdt.c
+++ b/drivers/watchdog/advantechwdt.c
@@ -199,7 +199,7 @@ static int advwdt_open(struct inode *inode, struct file *file)
 	 */
 
 	advwdt_ping();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int advwdt_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/alim1535_wdt.c b/drivers/watchdog/alim1535_wdt.c
index 60f0c2eb8531..39a07bb5f6d5 100644
--- a/drivers/watchdog/alim1535_wdt.c
+++ b/drivers/watchdog/alim1535_wdt.c
@@ -249,7 +249,7 @@ static int ali_open(struct inode *inode, struct file *file)
 
 	/* Activate */
 	ali_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /*
diff --git a/drivers/watchdog/alim7101_wdt.c b/drivers/watchdog/alim7101_wdt.c
index 12f7ea62dddd..7e9884960eb9 100644
--- a/drivers/watchdog/alim7101_wdt.c
+++ b/drivers/watchdog/alim7101_wdt.c
@@ -214,7 +214,7 @@ static int fop_open(struct inode *inode, struct file *file)
 		return -EBUSY;
 	/* Good, fire up the show */
 	wdt_startup();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int fop_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index ee1ab12ab04f..b9b2d06b3879 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -163,7 +163,7 @@ static int ar7_wdt_open(struct inode *inode, struct file *file)
 	ar7_wdt_enable_wdt();
 	expect_close = 0;
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int ar7_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/at91rm9200_wdt.c b/drivers/watchdog/at91rm9200_wdt.c
index b45fc0aee667..907a4545dee6 100644
--- a/drivers/watchdog/at91rm9200_wdt.c
+++ b/drivers/watchdog/at91rm9200_wdt.c
@@ -110,7 +110,7 @@ static int at91_wdt_open(struct inode *inode, struct file *file)
 		return -EBUSY;
 
 	at91_wdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /*
diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index e2209bf5fa8a..4f56b63f9691 100644
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -132,7 +132,7 @@ static int ath79_wdt_open(struct inode *inode, struct file *file)
 	clear_bit(WDT_FLAGS_EXPECT_CLOSE, &wdt_flags);
 	ath79_wdt_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int ath79_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index d3c1113e774c..e2af37c9a266 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -116,7 +116,7 @@ static int bcm63xx_wdt_open(struct inode *inode, struct file *file)
 		return -EBUSY;
 
 	bcm63xx_wdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int bcm63xx_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
index 6cfb102c397c..475360de6e9e 100644
--- a/drivers/watchdog/cpu5wdt.c
+++ b/drivers/watchdog/cpu5wdt.c
@@ -140,7 +140,7 @@ static int cpu5wdt_open(struct inode *inode, struct file *file)
 {
 	if (test_and_set_bit(0, &cpu5wdt_device.inuse))
 		return -EBUSY;
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int cpu5wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 32156e199c51..b5b078bdebe6 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -394,7 +394,7 @@ static int cpwd_open(struct inode *inode, struct file *f)
 
 	mutex_unlock(&cpwd_mutex);
 
-	return nonseekable_open(inode, f);
+	return stream_open(inode, f);
 }
 
 static int cpwd_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c
index 47f77a6fdfd6..89129e6fa9b6 100644
--- a/drivers/watchdog/eurotechwdt.c
+++ b/drivers/watchdog/eurotechwdt.c
@@ -316,7 +316,7 @@ static int eurwdt_open(struct inode *inode, struct file *file)
 	eurwdt_timeout = WDT_TIMEOUT;	/* initial timeout */
 	/* Activate the WDT */
 	eurwdt_activate_timer();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
diff --git a/drivers/watchdog/f71808e_wdt.c b/drivers/watchdog/f71808e_wdt.c
index 9a1c761258ce..021c6ace9462 100644
--- a/drivers/watchdog/f71808e_wdt.c
+++ b/drivers/watchdog/f71808e_wdt.c
@@ -525,7 +525,7 @@ static int watchdog_open(struct inode *inode, struct file *file)
 		__module_get(THIS_MODULE);
 
 	watchdog.expect_close = 0;
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int watchdog_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/gef_wdt.c b/drivers/watchdog/gef_wdt.c
index 006e2348022c..26350b319505 100644
--- a/drivers/watchdog/gef_wdt.c
+++ b/drivers/watchdog/gef_wdt.c
@@ -229,7 +229,7 @@ static int gef_wdt_open(struct inode *inode, struct file *file)
 
 	gef_wdt_handler_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int gef_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 88e01238f01b..c5a727da6657 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -92,7 +92,7 @@ static int geodewdt_open(struct inode *inode, struct file *file)
 		__module_get(THIS_MODULE);
 
 	geodewdt_ping();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int geodewdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/ib700wdt.c b/drivers/watchdog/ib700wdt.c
index cc262284a6aa..30d6cec582af 100644
--- a/drivers/watchdog/ib700wdt.c
+++ b/drivers/watchdog/ib700wdt.c
@@ -238,7 +238,7 @@ static int ibwdt_open(struct inode *inode, struct file *file)
 
 	/* Activate */
 	ibwdt_ping();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int ibwdt_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c
index 366b0474f278..897f7eda9e6a 100644
--- a/drivers/watchdog/ibmasr.c
+++ b/drivers/watchdog/ibmasr.c
@@ -323,7 +323,7 @@ static int asr_open(struct inode *inode, struct file *file)
 	asr_toggle();
 	asr_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int asr_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
index 5d20cdd30efe..5592b975fe3a 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -77,7 +77,7 @@ static int indydog_open(struct inode *inode, struct file *file)
 
 	pr_info("Started watchdog timer\n");
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int indydog_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
index 0caab6241eb7..3181a72c7ddf 100644
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ b/drivers/watchdog/intel_scu_watchdog.c
@@ -304,7 +304,7 @@ static int intel_scu_open(struct inode *inode, struct file *file)
 	if (watchdog_device.driver_closed)
 		return -EPERM;
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int intel_scu_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
index b16013ffacc2..d910a7dec21b 100644
--- a/drivers/watchdog/iop_wdt.c
+++ b/drivers/watchdog/iop_wdt.c
@@ -101,7 +101,7 @@ static int iop_wdt_open(struct inode *inode, struct file *file)
 	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
 	wdt_enable();
 	set_bit(WDT_ENABLED, &wdt_status);
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static ssize_t iop_wdt_write(struct file *file, const char *data, size_t len,
diff --git a/drivers/watchdog/it8712f_wdt.c b/drivers/watchdog/it8712f_wdt.c
index 41b3979a9d87..b1567240a0e6 100644
--- a/drivers/watchdog/it8712f_wdt.c
+++ b/drivers/watchdog/it8712f_wdt.c
@@ -327,7 +327,7 @@ static int it8712f_wdt_open(struct inode *inode, struct file *file)
 	ret = it8712f_wdt_enable();
 	if (ret)
 		return ret;
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int it8712f_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index f20cc53ff719..dd139cda936c 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -65,7 +65,7 @@ static int ixp4xx_wdt_open(struct inode *inode, struct file *file)
 
 	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
 	wdt_enable();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static ssize_t
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 1e41818a44bc..0565cf30017b 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -142,7 +142,7 @@ static int ks8695_wdt_open(struct inode *inode, struct file *file)
 		return -EBUSY;
 
 	ks8695_wdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /*
diff --git a/drivers/watchdog/m54xx_wdt.c b/drivers/watchdog/m54xx_wdt.c
index da6fa2b68074..752d03620f0a 100644
--- a/drivers/watchdog/m54xx_wdt.c
+++ b/drivers/watchdog/m54xx_wdt.c
@@ -85,7 +85,7 @@ static int m54xx_wdt_open(struct inode *inode, struct file *file)
 
 	clear_bit(WDT_OK_TO_CLOSE, &wdt_status);
 	wdt_enable();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static ssize_t m54xx_wdt_write(struct file *file, const char *data,
diff --git a/drivers/watchdog/machzwd.c b/drivers/watchdog/machzwd.c
index 88d823d87a4b..53759415cf06 100644
--- a/drivers/watchdog/machzwd.c
+++ b/drivers/watchdog/machzwd.c
@@ -333,7 +333,7 @@ static int zf_open(struct inode *inode, struct file *file)
 	if (nowayout)
 		__module_get(THIS_MODULE);
 	zf_timer_on();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int zf_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/mixcomwd.c b/drivers/watchdog/mixcomwd.c
index 3cc07447c655..ece56db0a379 100644
--- a/drivers/watchdog/mixcomwd.c
+++ b/drivers/watchdog/mixcomwd.c
@@ -150,7 +150,7 @@ static int mixcomwd_open(struct inode *inode, struct file *file)
 			mixcomwd_timer_alive = 0;
 		}
 	}
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int mixcomwd_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index e028e0a2eca0..25a92857b217 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -118,7 +118,7 @@ static int mtx1_wdt_open(struct inode *inode, struct file *file)
 {
 	if (test_and_set_bit(0, &mtx1_wdt_device.inuse))
 		return -EBUSY;
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 
diff --git a/drivers/watchdog/mv64x60_wdt.c b/drivers/watchdog/mv64x60_wdt.c
index 315275d7bab6..c785f4f0a196 100644
--- a/drivers/watchdog/mv64x60_wdt.c
+++ b/drivers/watchdog/mv64x60_wdt.c
@@ -133,7 +133,7 @@ static int mv64x60_wdt_open(struct inode *inode, struct file *file)
 
 	mv64x60_wdt_handler_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int mv64x60_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c
index 830bd04ff911..8a36350bab7b 100644
--- a/drivers/watchdog/nuc900_wdt.c
+++ b/drivers/watchdog/nuc900_wdt.c
@@ -131,7 +131,7 @@ static int nuc900_wdt_open(struct inode *inode, struct file *file)
 
 	nuc900_wdt_start();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int nuc900_wdt_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/nv_tco.c b/drivers/watchdog/nv_tco.c
index a0fabf6f92b0..98d4f5371cf4 100644
--- a/drivers/watchdog/nv_tco.c
+++ b/drivers/watchdog/nv_tco.c
@@ -161,7 +161,7 @@ static int nv_tco_open(struct inode *inode, struct file *file)
 	/* Reload and activate timer */
 	tco_timer_keepalive();
 	tco_timer_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int nv_tco_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/pc87413_wdt.c b/drivers/watchdog/pc87413_wdt.c
index 2ffa39b46970..ca21d6c240a3 100644
--- a/drivers/watchdog/pc87413_wdt.c
+++ b/drivers/watchdog/pc87413_wdt.c
@@ -286,7 +286,7 @@ static int pc87413_open(struct inode *inode, struct file *file)
 
 	pr_info("Watchdog enabled. Timeout set to %d minute(s).\n", timeout);
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
diff --git a/drivers/watchdog/pcwd.c b/drivers/watchdog/pcwd.c
index b72ce68eacd3..a3415cf07c98 100644
--- a/drivers/watchdog/pcwd.c
+++ b/drivers/watchdog/pcwd.c
@@ -695,7 +695,7 @@ static int pcwd_open(struct inode *inode, struct file *file)
 	/* Activate */
 	pcwd_start();
 	pcwd_keepalive();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int pcwd_close(struct inode *inode, struct file *file)
@@ -734,7 +734,7 @@ static int pcwd_temp_open(struct inode *inode, struct file *file)
 	if (!pcwd_private.supports_temp)
 		return -ENODEV;
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int pcwd_temp_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/pcwd_pci.c b/drivers/watchdog/pcwd_pci.c
index 1f78f0908621..5773d2591d3f 100644
--- a/drivers/watchdog/pcwd_pci.c
+++ b/drivers/watchdog/pcwd_pci.c
@@ -578,7 +578,7 @@ static int pcipcwd_open(struct inode *inode, struct file *file)
 	/* Activate */
 	pcipcwd_start();
 	pcipcwd_keepalive();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int pcipcwd_release(struct inode *inode, struct file *file)
@@ -620,7 +620,7 @@ static int pcipcwd_temp_open(struct inode *inode, struct file *file)
 	if (!pcipcwd_private.supports_temp)
 		return -ENODEV;
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int pcipcwd_temp_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/pcwd_usb.c b/drivers/watchdog/pcwd_usb.c
index 4d02f26156f9..5de6182dae33 100644
--- a/drivers/watchdog/pcwd_usb.c
+++ b/drivers/watchdog/pcwd_usb.c
@@ -485,7 +485,7 @@ static int usb_pcwd_open(struct inode *inode, struct file *file)
 	/* Activate */
 	usb_pcwd_start(usb_pcwd_device);
 	usb_pcwd_keepalive(usb_pcwd_device);
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int usb_pcwd_release(struct inode *inode, struct file *file)
@@ -524,7 +524,7 @@ static ssize_t usb_pcwd_temperature_read(struct file *file, char __user *data,
 
 static int usb_pcwd_temperature_open(struct inode *inode, struct file *file)
 {
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int usb_pcwd_temperature_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/pika_wdt.c b/drivers/watchdog/pika_wdt.c
index bb97f5b2f7eb..8938b3fb2b2d 100644
--- a/drivers/watchdog/pika_wdt.c
+++ b/drivers/watchdog/pika_wdt.c
@@ -118,7 +118,7 @@ static int pikawdt_open(struct inode *inode, struct file *file)
 
 	pikawdt_start();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /*
diff --git a/drivers/watchdog/pnx833x_wdt.c b/drivers/watchdog/pnx833x_wdt.c
index 882fdcb46ad1..312899f39fd2 100644
--- a/drivers/watchdog/pnx833x_wdt.c
+++ b/drivers/watchdog/pnx833x_wdt.c
@@ -116,7 +116,7 @@ static int pnx833x_wdt_open(struct inode *inode, struct file *file)
 
 	pr_info("Started watchdog timer\n");
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int pnx833x_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index 3a75f3b53452..e74d5cf272ab 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -150,7 +150,7 @@ static int rc32434_wdt_open(struct inode *inode, struct file *file)
 	rc32434_wdt_start();
 	rc32434_wdt_ping();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int rc32434_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index a281aa84bfb1..4382e9556860 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -142,7 +142,7 @@ static int rdc321x_wdt_open(struct inode *inode, struct file *file)
 	if (test_and_set_bit(0, &rdc321x_wdt_device.inuse))
 		return -EBUSY;
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int rdc321x_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index aba53424605e..f7f7a7a62022 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -76,7 +76,7 @@ static void riowd_writereg(struct riowd *p, u8 val, int index)
 
 static int riowd_open(struct inode *inode, struct file *filp)
 {
-	nonseekable_open(inode, filp);
+	stream_open(inode, filp);
 	return 0;
 }
 
diff --git a/drivers/watchdog/sa1100_wdt.c b/drivers/watchdog/sa1100_wdt.c
index d3be4f831db5..bfa035e1a75e 100644
--- a/drivers/watchdog/sa1100_wdt.c
+++ b/drivers/watchdog/sa1100_wdt.c
@@ -59,7 +59,7 @@ static int sa1100dog_open(struct inode *inode, struct file *file)
 	writel_relaxed(OSSR_M3, OSSR);
 	writel_relaxed(OWER_WME, OWER);
 	writel_relaxed(readl_relaxed(OIER) | OIER_E3, OIER);
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /*
diff --git a/drivers/watchdog/sb_wdog.c b/drivers/watchdog/sb_wdog.c
index 3abae50773b8..0692d42e5c67 100644
--- a/drivers/watchdog/sb_wdog.c
+++ b/drivers/watchdog/sb_wdog.c
@@ -105,7 +105,7 @@ static const struct watchdog_info ident = {
  */
 static int sbwdog_open(struct inode *inode, struct file *file)
 {
-	nonseekable_open(inode, file);
+	stream_open(inode, file);
 	if (test_and_set_bit(0, &sbwdog_gate))
 		return -EBUSY;
 	__module_get(THIS_MODULE);
diff --git a/drivers/watchdog/sbc60xxwdt.c b/drivers/watchdog/sbc60xxwdt.c
index 72d15fd1f183..4d127a91cbdc 100644
--- a/drivers/watchdog/sbc60xxwdt.c
+++ b/drivers/watchdog/sbc60xxwdt.c
@@ -208,7 +208,7 @@ static int fop_open(struct inode *inode, struct file *file)
 
 	/* Good, fire up the show */
 	wdt_startup();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int fop_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/sbc7240_wdt.c b/drivers/watchdog/sbc7240_wdt.c
index 5f268add17ce..efc81b318939 100644
--- a/drivers/watchdog/sbc7240_wdt.c
+++ b/drivers/watchdog/sbc7240_wdt.c
@@ -136,7 +136,7 @@ static int fop_open(struct inode *inode, struct file *file)
 
 	wdt_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int fop_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/sbc8360.c b/drivers/watchdog/sbc8360.c
index da60560ca446..3396024e7b76 100644
--- a/drivers/watchdog/sbc8360.c
+++ b/drivers/watchdog/sbc8360.c
@@ -271,7 +271,7 @@ static int sbc8360_open(struct inode *inode, struct file *file)
 	/* Activate and ping once to start the countdown */
 	sbc8360_activate();
 	sbc8360_ping();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int sbc8360_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/sbc_epx_c3.c b/drivers/watchdog/sbc_epx_c3.c
index a1c502e0d8ec..783037ffd7d8 100644
--- a/drivers/watchdog/sbc_epx_c3.c
+++ b/drivers/watchdog/sbc_epx_c3.c
@@ -78,7 +78,7 @@ static int epx_c3_open(struct inode *inode, struct file *file)
 	epx_c3_alive = 1;
 	pr_info("Started watchdog timer\n");
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int epx_c3_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/sbc_fitpc2_wdt.c b/drivers/watchdog/sbc_fitpc2_wdt.c
index a517d8bae757..3822a60a8d2b 100644
--- a/drivers/watchdog/sbc_fitpc2_wdt.c
+++ b/drivers/watchdog/sbc_fitpc2_wdt.c
@@ -75,7 +75,7 @@ static int fitpc2_wdt_open(struct inode *inode, struct file *file)
 
 	wdt_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static ssize_t fitpc2_wdt_write(struct file *file, const char *data,
diff --git a/drivers/watchdog/sc1200wdt.c b/drivers/watchdog/sc1200wdt.c
index e035a4d4b299..3c2e9355410a 100644
--- a/drivers/watchdog/sc1200wdt.c
+++ b/drivers/watchdog/sc1200wdt.c
@@ -178,7 +178,7 @@ static int sc1200wdt_open(struct inode *inode, struct file *file)
 	sc1200wdt_start();
 	pr_info("Watchdog enabled, timeout = %d min(s)", timeout);
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 
diff --git a/drivers/watchdog/sc520_wdt.c b/drivers/watchdog/sc520_wdt.c
index 403542f9ed8d..44797414c886 100644
--- a/drivers/watchdog/sc520_wdt.c
+++ b/drivers/watchdog/sc520_wdt.c
@@ -258,7 +258,7 @@ static int fop_open(struct inode *inode, struct file *file)
 
 	/* Good, fire up the show */
 	wdt_startup();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int fop_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/sch311x_wdt.c b/drivers/watchdog/sch311x_wdt.c
index 814cdf539b0f..ed6e9fac5d74 100644
--- a/drivers/watchdog/sch311x_wdt.c
+++ b/drivers/watchdog/sch311x_wdt.c
@@ -316,7 +316,7 @@ static int sch311x_wdt_open(struct inode *inode, struct file *file)
 	 *	Activate
 	 */
 	sch311x_wdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int sch311x_wdt_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/scx200_wdt.c b/drivers/watchdog/scx200_wdt.c
index ec4063ebb41a..85f2d8e06cd0 100644
--- a/drivers/watchdog/scx200_wdt.c
+++ b/drivers/watchdog/scx200_wdt.c
@@ -102,7 +102,7 @@ static int scx200_wdt_open(struct inode *inode, struct file *file)
 		return -EBUSY;
 	scx200_wdt_enable();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int scx200_wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/smsc37b787_wdt.c b/drivers/watchdog/smsc37b787_wdt.c
index c768dcd53034..a22170775273 100644
--- a/drivers/watchdog/smsc37b787_wdt.c
+++ b/drivers/watchdog/smsc37b787_wdt.c
@@ -366,7 +366,7 @@ static int wb_smsc_wdt_open(struct inode *inode, struct file *file)
 	pr_info("Watchdog enabled. Timeout set to %d %s\n",
 		timeout, (unit == UNIT_SECOND) ? "second(s)" : "minute(s)");
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /* close => shut off the timer */
diff --git a/drivers/watchdog/w83877f_wdt.c b/drivers/watchdog/w83877f_wdt.c
index db9b6488e388..8dd953f90680 100644
--- a/drivers/watchdog/w83877f_wdt.c
+++ b/drivers/watchdog/w83877f_wdt.c
@@ -224,7 +224,7 @@ static int fop_open(struct inode *inode, struct file *file)
 
 	/* Good, fire up the show */
 	wdt_startup();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int fop_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/w83977f_wdt.c b/drivers/watchdog/w83977f_wdt.c
index 672b61a7f9a3..184324c1edae 100644
--- a/drivers/watchdog/w83977f_wdt.c
+++ b/drivers/watchdog/w83977f_wdt.c
@@ -298,7 +298,7 @@ static int wdt_open(struct inode *inode, struct file *file)
 		__module_get(THIS_MODULE);
 
 	wdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int wdt_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/wafer5823wdt.c b/drivers/watchdog/wafer5823wdt.c
index 93c5b610e264..0a8073b419f8 100644
--- a/drivers/watchdog/wafer5823wdt.c
+++ b/drivers/watchdog/wafer5823wdt.c
@@ -197,7 +197,7 @@ static int wafwdt_open(struct inode *inode, struct file *file)
 	 *      Activate
 	 */
 	wafwdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int wafwdt_close(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c
index f6c24b22b37c..252a7c7b6592 100644
--- a/drivers/watchdog/watchdog_dev.c
+++ b/drivers/watchdog/watchdog_dev.c
@@ -825,7 +825,7 @@ static int watchdog_open(struct inode *inode, struct file *file)
 		kref_get(&wd_data->kref);
 
 	/* dev/watchdog is a virtual (and thus non-seekable) filesystem */
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 
 out_mod:
 	module_put(wd_data->wdd->ops->owner);
diff --git a/drivers/watchdog/wdrtas.c b/drivers/watchdog/wdrtas.c
index 0240c60d14e3..3c3ed512ce1e 100644
--- a/drivers/watchdog/wdrtas.c
+++ b/drivers/watchdog/wdrtas.c
@@ -376,7 +376,7 @@ static int wdrtas_open(struct inode *inode, struct file *file)
 	wdrtas_timer_start();
 	wdrtas_timer_keepalive();
 
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
@@ -442,7 +442,7 @@ static ssize_t wdrtas_temp_read(struct file *file, char __user *buf,
  */
 static int wdrtas_temp_open(struct inode *inode, struct file *file)
 {
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
diff --git a/drivers/watchdog/wdt.c b/drivers/watchdog/wdt.c
index e481fbbc4ae7..3d2f5ed60e88 100644
--- a/drivers/watchdog/wdt.c
+++ b/drivers/watchdog/wdt.c
@@ -421,7 +421,7 @@ static int wdt_open(struct inode *inode, struct file *file)
 	 *	Activate
 	 */
 	wdt_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
@@ -481,7 +481,7 @@ static ssize_t wdt_temp_read(struct file *file, char __user *buf,
 
 static int wdt_temp_open(struct inode *inode, struct file *file)
 {
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
diff --git a/drivers/watchdog/wdt285.c b/drivers/watchdog/wdt285.c
index ebbb183be618..68843e7f224d 100644
--- a/drivers/watchdog/wdt285.c
+++ b/drivers/watchdog/wdt285.c
@@ -101,7 +101,7 @@ static int watchdog_open(struct inode *inode, struct file *file)
 
 	ret = 0;
 #endif
-	nonseekable_open(inode, file);
+	stream_open(inode, file);
 	return ret;
 }
 
diff --git a/drivers/watchdog/wdt977.c b/drivers/watchdog/wdt977.c
index a8e6f87f60c9..59ed644dd4a9 100644
--- a/drivers/watchdog/wdt977.c
+++ b/drivers/watchdog/wdt977.c
@@ -273,7 +273,7 @@ static int wdt977_open(struct inode *inode, struct file *file)
 		__module_get(THIS_MODULE);
 
 	wdt977_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 static int wdt977_release(struct inode *inode, struct file *file)
diff --git a/drivers/watchdog/wdt_pci.c b/drivers/watchdog/wdt_pci.c
index 10e2cda0ee5a..ff3a41f47127 100644
--- a/drivers/watchdog/wdt_pci.c
+++ b/drivers/watchdog/wdt_pci.c
@@ -461,7 +461,7 @@ static int wdtpci_open(struct inode *inode, struct file *file)
 	 *	Activate
 	 */
 	wdtpci_start();
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**
@@ -524,7 +524,7 @@ static ssize_t wdtpci_temp_read(struct file *file, char __user *buf,
 
 static int wdtpci_temp_open(struct inode *inode, struct file *file)
 {
-	return nonseekable_open(inode, file);
+	return stream_open(inode, file);
 }
 
 /**