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Message-Id: <1272359898-32020-2-git-send-email-jkacur@redhat.com>
Date: Tue, 27 Apr 2010 11:18:09 +0200
From: John Kacur <jkacur@...hat.com>
To: Arnd Bergmann <arnd@...db.de>, lkml <linux-kernel@...r.kernel.org>
Cc: Arnd Bergmann <arnd@...db.de>,
Linus Torvalds <torvalds@...ux-foundation.org>,
Frederic Weisbecker <fweisbec@...il.com>,
Jan Blunck <jblunck@...il.com>,
Thomas Gleixner <tglx@...utronix.de>,
John Kacur <jkacur@...hat.com>
Subject: [PATCH 01/10] dvb: push down BKL into ioctl functions
From: Arnd Bergmann <arnd@...db.de>
This requires changing all users of dvb_usercopy to
omit the inode argument.
Signed-off-by: Arnd Bergmann <arnd@...db.de>
Fixed merge conflicts that result from having applied
Linus's Preparation for BKL'ed ioctl removal patch first.
Signed-off-by: John Kacur <jkacur@...hat.com>
---
drivers/media/dvb/dvb-core/dmxdev.c | 31 +++++++++++++++++++-------
drivers/media/dvb/dvb-core/dvb_ca_en50221.c | 17 ++++++++++----
drivers/media/dvb/dvb-core/dvb_frontend.c | 30 +++++++++++++-------------
drivers/media/dvb/dvb-core/dvb_net.c | 15 +++++++++---
drivers/media/dvb/dvb-core/dvbdev.c | 17 +++++++++-----
drivers/media/dvb/dvb-core/dvbdev.h | 11 +++------
drivers/media/dvb/firewire/firedtv-ci.c | 5 +--
drivers/media/dvb/ttpci/av7110.c | 4 +-
drivers/media/dvb/ttpci/av7110_av.c | 8 +++---
drivers/media/dvb/ttpci/av7110_ca.c | 5 +--
10 files changed, 85 insertions(+), 58 deletions(-)
diff --git a/drivers/media/dvb/dvb-core/dmxdev.c b/drivers/media/dvb/dvb-core/dmxdev.c
index a6c4f2f..425862f 100644
--- a/drivers/media/dvb/dvb-core/dmxdev.c
+++ b/drivers/media/dvb/dvb-core/dmxdev.c
@@ -25,6 +25,7 @@
#include <linux/slab.h>
#include <linux/vmalloc.h>
#include <linux/module.h>
+#include <linux/smp_lock.h>
#include <linux/poll.h>
#include <linux/ioctl.h>
#include <linux/wait.h>
@@ -963,7 +964,7 @@ dvb_demux_read(struct file *file, char __user *buf, size_t count,
return ret;
}
-static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
+static int dvb_demux_do_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dmxdev_filter *dmxdevfilter = file->private_data;
@@ -1084,10 +1085,16 @@ static int dvb_demux_do_ioctl(struct inode *inode, struct file *file,
return ret;
}
-static int dvb_demux_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long dvb_demux_ioctl(struct file *file, unsigned int cmd,
+ unsigned long arg)
{
- return dvb_usercopy(inode, file, cmd, arg, dvb_demux_do_ioctl);
+ int ret;
+
+ lock_kernel();
+ ret = dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl);
+ unlock_kernel();
+
+ return ret;
}
static unsigned int dvb_demux_poll(struct file *file, poll_table *wait)
@@ -1139,7 +1146,7 @@ static int dvb_demux_release(struct inode *inode, struct file *file)
static const struct file_operations dvb_demux_fops = {
.owner = THIS_MODULE,
.read = dvb_demux_read,
- .bkl_ioctl = dvb_demux_ioctl,
+ .unlocked_ioctl = dvb_demux_ioctl,
.open = dvb_demux_open,
.release = dvb_demux_release,
.poll = dvb_demux_poll,
@@ -1152,7 +1159,7 @@ static struct dvb_device dvbdev_demux = {
.fops = &dvb_demux_fops
};
-static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file,
+static int dvb_dvr_do_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1176,10 +1183,16 @@ static int dvb_dvr_do_ioctl(struct inode *inode, struct file *file,
return ret;
}
-static int dvb_dvr_ioctl(struct inode *inode, struct file *file,
+static long dvb_dvr_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- return dvb_usercopy(inode, file, cmd, arg, dvb_dvr_do_ioctl);
+ int ret;
+
+ lock_kernel();
+ ret = dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl);
+ unlock_kernel();
+
+ return ret;
}
static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait)
@@ -1208,7 +1221,7 @@ static const struct file_operations dvb_dvr_fops = {
.owner = THIS_MODULE,
.read = dvb_dvr_read,
.write = dvb_dvr_write,
- .bkl_ioctl = dvb_dvr_ioctl,
+ .unlocked_ioctl = dvb_dvr_ioctl,
.open = dvb_dvr_open,
.release = dvb_dvr_release,
.poll = dvb_dvr_poll,
diff --git a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
index 4609c7e..ef259a0 100644
--- a/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
+++ b/drivers/media/dvb/dvb-core/dvb_ca_en50221.c
@@ -36,6 +36,7 @@
#include <linux/delay.h>
#include <linux/spinlock.h>
#include <linux/sched.h>
+#include <linux/smp_lock.h>
#include <linux/kthread.h>
#include "dvb_ca_en50221.h"
@@ -1181,7 +1182,7 @@ static int dvb_ca_en50221_thread(void *data)
*
* @return 0 on success, <0 on error.
*/
-static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file,
+static int dvb_ca_en50221_io_do_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1255,10 +1256,16 @@ static int dvb_ca_en50221_io_do_ioctl(struct inode *inode, struct file *file,
*
* @return 0 on success, <0 on error.
*/
-static int dvb_ca_en50221_io_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+static long dvb_ca_en50221_io_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
{
- return dvb_usercopy(inode, file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
+ int ret;
+
+ lock_kernel();
+ ret = dvb_usercopy(file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
+ unlock_kernel();
+
+ return ret;
}
@@ -1611,7 +1618,7 @@ static const struct file_operations dvb_ca_fops = {
.owner = THIS_MODULE,
.read = dvb_ca_en50221_io_read,
.write = dvb_ca_en50221_io_write,
- .bkl_ioctl = dvb_ca_en50221_io_ioctl,
+ .unlocked_ioctl = dvb_ca_en50221_io_ioctl,
.open = dvb_ca_en50221_io_open,
.release = dvb_ca_en50221_io_release,
.poll = dvb_ca_en50221_io_poll,
diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 5ebf731..5450d1f 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -36,6 +36,7 @@
#include <linux/list.h>
#include <linux/freezer.h>
#include <linux/jiffies.h>
+#include <linux/smp_lock.h>
#include <linux/kthread.h>
#include <asm/processor.h>
@@ -1188,14 +1189,14 @@ static void dtv_property_cache_submit(struct dvb_frontend *fe)
}
}
-static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_legacy(struct file *file,
unsigned int cmd, void *parg);
-static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_properties(struct file *file,
unsigned int cmd, void *parg);
static int dtv_property_process_get(struct dvb_frontend *fe,
struct dtv_property *tvp,
- struct inode *inode, struct file *file)
+ struct file *file)
{
int r = 0;
@@ -1328,7 +1329,6 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
static int dtv_property_process_set(struct dvb_frontend *fe,
struct dtv_property *tvp,
- struct inode *inode,
struct file *file)
{
int r = 0;
@@ -1359,7 +1359,7 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
dprintk("%s() Finalised property cache\n", __func__);
dtv_property_cache_submit(fe);
- r |= dvb_frontend_ioctl_legacy(inode, file, FE_SET_FRONTEND,
+ r |= dvb_frontend_ioctl_legacy(file, FE_SET_FRONTEND,
&fepriv->parameters);
break;
case DTV_FREQUENCY:
@@ -1391,12 +1391,12 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
break;
case DTV_VOLTAGE:
fe->dtv_property_cache.voltage = tvp->u.data;
- r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_VOLTAGE,
+ r = dvb_frontend_ioctl_legacy(file, FE_SET_VOLTAGE,
(void *)fe->dtv_property_cache.voltage);
break;
case DTV_TONE:
fe->dtv_property_cache.sectone = tvp->u.data;
- r = dvb_frontend_ioctl_legacy(inode, file, FE_SET_TONE,
+ r = dvb_frontend_ioctl_legacy(file, FE_SET_TONE,
(void *)fe->dtv_property_cache.sectone);
break;
case DTV_CODE_RATE_HP:
@@ -1480,7 +1480,7 @@ static int dtv_property_process_set(struct dvb_frontend *fe,
return r;
}
-static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1502,17 +1502,17 @@ static int dvb_frontend_ioctl(struct inode *inode, struct file *file,
return -ERESTARTSYS;
if ((cmd == FE_SET_PROPERTY) || (cmd == FE_GET_PROPERTY))
- err = dvb_frontend_ioctl_properties(inode, file, cmd, parg);
+ err = dvb_frontend_ioctl_properties(file, cmd, parg);
else {
fe->dtv_property_cache.state = DTV_UNDEFINED;
- err = dvb_frontend_ioctl_legacy(inode, file, cmd, parg);
+ err = dvb_frontend_ioctl_legacy(file, cmd, parg);
}
up(&fepriv->sem);
return err;
}
-static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_properties(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1548,7 +1548,7 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
}
for (i = 0; i < tvps->num; i++) {
- (tvp + i)->result = dtv_property_process_set(fe, tvp + i, inode, file);
+ (tvp + i)->result = dtv_property_process_set(fe, tvp + i, file);
err |= (tvp + i)->result;
}
@@ -1580,7 +1580,7 @@ static int dvb_frontend_ioctl_properties(struct inode *inode, struct file *file,
}
for (i = 0; i < tvps->num; i++) {
- (tvp + i)->result = dtv_property_process_get(fe, tvp + i, inode, file);
+ (tvp + i)->result = dtv_property_process_get(fe, tvp + i, file);
err |= (tvp + i)->result;
}
@@ -1597,7 +1597,7 @@ out:
return err;
}
-static int dvb_frontend_ioctl_legacy(struct inode *inode, struct file *file,
+static int dvb_frontend_ioctl_legacy(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -2022,7 +2022,7 @@ static int dvb_frontend_release(struct inode *inode, struct file *file)
static const struct file_operations dvb_frontend_fops = {
.owner = THIS_MODULE,
- .bkl_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.poll = dvb_frontend_poll,
.open = dvb_frontend_open,
.release = dvb_frontend_release
diff --git a/drivers/media/dvb/dvb-core/dvb_net.c b/drivers/media/dvb/dvb-core/dvb_net.c
index 7ae8ef1..a96eee3 100644
--- a/drivers/media/dvb/dvb-core/dvb_net.c
+++ b/drivers/media/dvb/dvb-core/dvb_net.c
@@ -59,6 +59,7 @@
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/dvb/net.h>
+#include <linux/smp_lock.h>
#include <linux/uio.h>
#include <asm/uaccess.h>
#include <linux/crc32.h>
@@ -1333,7 +1334,7 @@ static int dvb_net_remove_if(struct dvb_net *dvbnet, unsigned long num)
return 0;
}
-static int dvb_net_do_ioctl(struct inode *inode, struct file *file,
+static int dvb_net_do_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1435,10 +1436,16 @@ static int dvb_net_do_ioctl(struct inode *inode, struct file *file,
return 0;
}
-static int dvb_net_ioctl(struct inode *inode, struct file *file,
+static long dvb_net_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
- return dvb_usercopy(inode, file, cmd, arg, dvb_net_do_ioctl);
+ int ret;
+
+ lock_kernel();
+ ret = dvb_usercopy(file, cmd, arg, dvb_net_do_ioctl);
+ unlock_kernel();
+
+ return ret;
}
static int dvb_net_close(struct inode *inode, struct file *file)
@@ -1459,7 +1466,7 @@ static int dvb_net_close(struct inode *inode, struct file *file)
static const struct file_operations dvb_net_fops = {
.owner = THIS_MODULE,
- .bkl_ioctl = dvb_net_ioctl,
+ .unlocked_ioctl = dvb_net_ioctl,
.open = dvb_generic_open,
.release = dvb_net_close,
};
diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c
index 94159b9..b915c39 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.c
+++ b/drivers/media/dvb/dvb-core/dvbdev.c
@@ -154,10 +154,11 @@ int dvb_generic_release(struct inode *inode, struct file *file)
EXPORT_SYMBOL(dvb_generic_release);
-int dvb_generic_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
+long dvb_generic_ioctl(struct file *file,
+ unsigned int cmd, unsigned long arg)
{
struct dvb_device *dvbdev = file->private_data;
+ int ret;
if (!dvbdev)
return -ENODEV;
@@ -165,7 +166,11 @@ int dvb_generic_ioctl(struct inode *inode, struct file *file,
if (!dvbdev->kernel_ioctl)
return -EINVAL;
- return dvb_usercopy (inode, file, cmd, arg, dvbdev->kernel_ioctl);
+ lock_kernel();
+ ret = dvb_usercopy(file, cmd, arg, dvbdev->kernel_ioctl);
+ unlock_kernel();
+
+ return ret;
}
EXPORT_SYMBOL(dvb_generic_ioctl);
@@ -377,9 +382,9 @@ EXPORT_SYMBOL(dvb_unregister_adapter);
define this as video_usercopy(). this will introduce a dependecy
to the v4l "videodev.o" module, which is unnecessary for some
cards (ie. the budget dvb-cards don't need the v4l module...) */
-int dvb_usercopy(struct inode *inode, struct file *file,
+int dvb_usercopy(struct file *file,
unsigned int cmd, unsigned long arg,
- int (*func)(struct inode *inode, struct file *file,
+ int (*func)(struct file *file,
unsigned int cmd, void *arg))
{
char sbuf[128];
@@ -416,7 +421,7 @@ int dvb_usercopy(struct inode *inode, struct file *file,
}
/* call driver */
- if ((err = func(inode, file, cmd, parg)) == -ENOIOCTLCMD)
+ if ((err = func(file, cmd, parg)) == -ENOIOCTLCMD)
err = -EINVAL;
if (err < 0)
diff --git a/drivers/media/dvb/dvb-core/dvbdev.h b/drivers/media/dvb/dvb-core/dvbdev.h
index f7b499d..fcc6ae9 100644
--- a/drivers/media/dvb/dvb-core/dvbdev.h
+++ b/drivers/media/dvb/dvb-core/dvbdev.h
@@ -116,8 +116,7 @@ struct dvb_device {
wait_queue_head_t wait_queue;
/* don't really need those !? -- FIXME: use video_usercopy */
- int (*kernel_ioctl)(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg);
+ int (*kernel_ioctl)(struct file *file, unsigned int cmd, void *arg);
void *priv;
};
@@ -138,17 +137,15 @@ extern void dvb_unregister_device (struct dvb_device *dvbdev);
extern int dvb_generic_open (struct inode *inode, struct file *file);
extern int dvb_generic_release (struct inode *inode, struct file *file);
-extern int dvb_generic_ioctl (struct inode *inode, struct file *file,
+extern long dvb_generic_ioctl (struct file *file,
unsigned int cmd, unsigned long arg);
/* we don't mess with video_usercopy() any more,
we simply define out own dvb_usercopy(), which will hopefully become
generic_usercopy() someday... */
-extern int dvb_usercopy(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg,
- int (*func)(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg));
+extern int dvb_usercopy(struct file *file, unsigned int cmd, unsigned long arg,
+ int (*func)(struct file *file, unsigned int cmd, void *arg));
/** generic DVB attach function. */
#ifdef CONFIG_MEDIA_ATTACH
diff --git a/drivers/media/dvb/firewire/firedtv-ci.c b/drivers/media/dvb/firewire/firedtv-ci.c
index 9378618..d3c2cf6 100644
--- a/drivers/media/dvb/firewire/firedtv-ci.c
+++ b/drivers/media/dvb/firewire/firedtv-ci.c
@@ -175,8 +175,7 @@ static int fdtv_ca_send_msg(struct firedtv *fdtv, void *arg)
return err;
}
-static int fdtv_ca_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
+static int fdtv_ca_ioctl(struct file *file, unsigned int cmd, void *arg)
{
struct dvb_device *dvbdev = file->private_data;
struct firedtv *fdtv = dvbdev->priv;
@@ -217,7 +216,7 @@ static unsigned int fdtv_ca_io_poll(struct file *file, poll_table *wait)
static const struct file_operations fdtv_ca_fops = {
.owner = THIS_MODULE,
- .bkl_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.open = dvb_generic_open,
.release = dvb_generic_release,
.poll = fdtv_ca_io_poll,
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index 0e606af..a6be529 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -708,7 +708,7 @@ static void gpioirq(unsigned long cookie)
#ifdef CONFIG_DVB_AV7110_OSD
-static int dvb_osd_ioctl(struct inode *inode, struct file *file,
+static int dvb_osd_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -727,7 +727,7 @@ static int dvb_osd_ioctl(struct inode *inode, struct file *file,
static const struct file_operations dvb_osd_fops = {
.owner = THIS_MODULE,
- .bkl_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.open = dvb_generic_open,
.release = dvb_generic_release,
};
diff --git a/drivers/media/dvb/ttpci/av7110_av.c b/drivers/media/dvb/ttpci/av7110_av.c
index 62d3b1f..13efba9 100644
--- a/drivers/media/dvb/ttpci/av7110_av.c
+++ b/drivers/media/dvb/ttpci/av7110_av.c
@@ -1089,7 +1089,7 @@ static int play_iframe(struct av7110 *av7110, char __user *buf, unsigned int len
}
-static int dvb_video_ioctl(struct inode *inode, struct file *file,
+static int dvb_video_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1297,7 +1297,7 @@ static int dvb_video_ioctl(struct inode *inode, struct file *file,
return ret;
}
-static int dvb_audio_ioctl(struct inode *inode, struct file *file,
+static int dvb_audio_ioctl(struct file *file,
unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
@@ -1517,7 +1517,7 @@ static int dvb_audio_release(struct inode *inode, struct file *file)
static const struct file_operations dvb_video_fops = {
.owner = THIS_MODULE,
.write = dvb_video_write,
- .bkl_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.open = dvb_video_open,
.release = dvb_video_release,
.poll = dvb_video_poll,
@@ -1535,7 +1535,7 @@ static struct dvb_device dvbdev_video = {
static const struct file_operations dvb_audio_fops = {
.owner = THIS_MODULE,
.write = dvb_audio_write,
- .bkl_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.open = dvb_audio_open,
.release = dvb_audio_release,
.poll = dvb_audio_poll,
diff --git a/drivers/media/dvb/ttpci/av7110_ca.c b/drivers/media/dvb/ttpci/av7110_ca.c
index 94e0668..4eba35a 100644
--- a/drivers/media/dvb/ttpci/av7110_ca.c
+++ b/drivers/media/dvb/ttpci/av7110_ca.c
@@ -248,8 +248,7 @@ static unsigned int dvb_ca_poll (struct file *file, poll_table *wait)
return mask;
}
-static int dvb_ca_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *parg)
+static int dvb_ca_ioctl(struct file *file, unsigned int cmd, void *parg)
{
struct dvb_device *dvbdev = file->private_data;
struct av7110 *av7110 = dvbdev->priv;
@@ -350,7 +349,7 @@ static const struct file_operations dvb_ca_fops = {
.owner = THIS_MODULE,
.read = dvb_ca_read,
.write = dvb_ca_write,
- .bkl_ioctl = dvb_generic_ioctl,
+ .unlocked_ioctl = dvb_generic_ioctl,
.open = dvb_ca_open,
.release = dvb_generic_release,
.poll = dvb_ca_poll,
--
1.6.6.1
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