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Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl

Browse source 
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl:
  BKL: introduce CONFIG_BKL.
  dabusb: remove the BKL
  sunrpc: remove the big kernel lock
  init/main.c: remove BKL notations
  blktrace: remove the big kernel lock
  rtmutex-tester: make it build without BKL
  dvb-core: kill the big kernel lock
  dvb/bt8xx: kill the big kernel lock
  tlclk: remove big kernel lock
  fix rawctl compat ioctls breakage on amd64 and itanic
  uml: kill big kernel lock
  parisc: remove big kernel lock
  cris: autoconvert trivial BKL users
  alpha: kill big kernel lock
  isapnp: BKL removal
  s390/block: kill the big kernel lock
  hpet: kill BKL, add compat_ioctl
This commit is contained in:
Linus Torvalds 2010-10-22 10:43:11 -07:00
commit 5704e44d28
53 changed files with 347 additions and 402 deletions
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1
drivers/media/Kconfig
View file

@ -19,6 +19,7 @@ comment "Multimedia core support"
config VIDEO_DEV
tristate "Video For Linux"
depends on BKL # used in many drivers for ioctl handling, need to kill
---help---
V4L core support for video capture and overlay devices, webcams and
AM/FM radio cards.

7
drivers/media/dvb/bt8xx/dst_ca.c
View file

@ -22,7 +22,7 @@
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/smp_lock.h>
#include <linux/mutex.h>
#include <linux/string.h>
#include <linux/dvb/ca.h>
#include "dvbdev.h"
@ -52,6 +52,7 @@
} while(0)
static DEFINE_MUTEX(dst_ca_mutex);
static unsigned int verbose = 5;
module_param(verbose, int, 0644);
MODULE_PARM_DESC(verbose, "verbose startup messages, default is 1 (yes)");
@ -564,7 +565,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
void __user *arg = (void __user *)ioctl_arg;
int result = 0;
lock_kernel();
mutex_lock(&dst_ca_mutex);
dvbdev = file->private_data;
state = (struct dst_state *)dvbdev->priv;
p_ca_message = kmalloc(sizeof (struct ca_msg), GFP_KERNEL);
@ -652,7 +653,7 @@ static long dst_ca_ioctl(struct file *file, unsigned int cmd, unsigned long ioct
kfree (p_ca_slot_info);
kfree (p_ca_caps);
unlock_kernel();
mutex_unlock(&dst_ca_mutex);
return result;
}

17
drivers/media/dvb/dvb-core/dmxdev.c
View file

@ -25,7 +25,6 @@
#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>
@ -1088,13 +1087,7 @@ static int dvb_demux_do_ioctl(struct file *file,
static long dvb_demux_ioctl(struct file *file, unsigned int cmd,
unsigned long arg)
{
int ret;
lock_kernel();
ret = dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl);
unlock_kernel();
return ret;
return dvb_usercopy(file, cmd, arg, dvb_demux_do_ioctl);
}
static unsigned int dvb_demux_poll(struct file *file, poll_table *wait)
@ -1186,13 +1179,7 @@ static int dvb_dvr_do_ioctl(struct file *file,
static long dvb_dvr_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret;
lock_kernel();
ret = dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl);
unlock_kernel();
return ret;
return dvb_usercopy(file, cmd, arg, dvb_dvr_do_ioctl);
}
static unsigned int dvb_dvr_poll(struct file *file, poll_table *wait)

8
drivers/media/dvb/dvb-core/dvb_ca_en50221.c
View file

@ -1259,13 +1259,7 @@ static int dvb_ca_en50221_io_do_ioctl(struct file *file,
static long dvb_ca_en50221_io_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret;
lock_kernel();
ret = dvb_usercopy(file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
unlock_kernel();
return ret;
return dvb_usercopy(file, cmd, arg, dvb_ca_en50221_io_do_ioctl);
}

9
drivers/media/dvb/dvb-core/dvb_net.c
View file

@ -59,7 +59,6 @@
#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>
@ -1445,13 +1444,7 @@ static int dvb_net_do_ioctl(struct file *file,
static long dvb_net_ioctl(struct file *file,
unsigned int cmd, unsigned long arg)
{
int ret;
lock_kernel();
ret = dvb_usercopy(file, cmd, arg, dvb_net_do_ioctl);
unlock_kernel();
return ret;
return dvb_usercopy(file, cmd, arg, dvb_net_do_ioctl);
}
static int dvb_net_close(struct inode *inode, struct file *file)

17
drivers/media/dvb/dvb-core/dvbdev.c
View file

@ -32,9 +32,9 @@
#include <linux/fs.h>
#include <linux/cdev.h>
#include <linux/mutex.h>
#include <linux/smp_lock.h>
#include "dvbdev.h"
static DEFINE_MUTEX(dvbdev_mutex);
static int dvbdev_debug;
module_param(dvbdev_debug, int, 0644);
@ -68,7 +68,7 @@ static int dvb_device_open(struct inode *inode, struct file *file)
{
struct dvb_device *dvbdev;
lock_kernel();
mutex_lock(&dvbdev_mutex);
down_read(&minor_rwsem);
dvbdev = dvb_minors[iminor(inode)];
@ -91,12 +91,12 @@ static int dvb_device_open(struct inode *inode, struct file *file)
}
fops_put(old_fops);
up_read(&minor_rwsem);
unlock_kernel();
mutex_unlock(&dvbdev_mutex);
return err;
}
fail:
up_read(&minor_rwsem);
unlock_kernel();
mutex_unlock(&dvbdev_mutex);
return -ENODEV;
}
@ -158,7 +158,6 @@ 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;
@ -166,11 +165,7 @@ long dvb_generic_ioctl(struct file *file,
if (!dvbdev->kernel_ioctl)
return -EINVAL;
lock_kernel();
ret = dvb_usercopy(file, cmd, arg, dvbdev->kernel_ioctl);
unlock_kernel();
return ret;
return dvb_usercopy(file, cmd, arg, dvbdev->kernel_ioctl);
}
EXPORT_SYMBOL(dvb_generic_ioctl);
@ -421,8 +416,10 @@ int dvb_usercopy(struct file *file,
}
/* call driver */
mutex_lock(&dvbdev_mutex);
if ((err = func(file, cmd, parg)) == -ENOIOCTLCMD)
err = -EINVAL;
mutex_unlock(&dvbdev_mutex);
if (err < 0)
goto out;

18
drivers/media/video/dabusb.c
View file

@ -32,7 +32,6 @@
#include <linux/list.h>
#include <linux/vmalloc.h>
#include <linux/slab.h>
#include <linux/smp_lock.h>
#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/atomic.h>
@ -621,7 +620,6 @@ static int dabusb_open (struct inode *inode, struct file *file)
if (devnum < DABUSB_MINOR || devnum >= (DABUSB_MINOR + NRDABUSB))
return -EIO;
lock_kernel();
s = &dabusb[devnum - DABUSB_MINOR];
dbg("dabusb_open");
@ -630,21 +628,17 @@ static int dabusb_open (struct inode *inode, struct file *file)
while (!s->usbdev || s->opened) {
mutex_unlock(&s->mutex);
if (file->f_flags & O_NONBLOCK) {
if (file->f_flags & O_NONBLOCK)
return -EBUSY;
}
msleep_interruptible(500);
if (signal_pending (current)) {
unlock_kernel();
if (signal_pending (current))
return -EAGAIN;
}
mutex_lock(&s->mutex);
}
if (usb_set_interface (s->usbdev, _DABUSB_IF, 1) < 0) {
mutex_unlock(&s->mutex);
dev_err(&s->usbdev->dev, "set_interface failed\n");
unlock_kernel();
return -EINVAL;
}
s->opened = 1;
@ -654,7 +648,6 @@ static int dabusb_open (struct inode *inode, struct file *file)
file->private_data = s;
r = nonseekable_open(inode, file);
unlock_kernel();
return r;
}
@ -689,17 +682,13 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg
dbg("dabusb_ioctl");
lock_kernel();
if (s->remove_pending) {
unlock_kernel();
if (s->remove_pending)
return -EIO;
}
mutex_lock(&s->mutex);
if (!s->usbdev) {
mutex_unlock(&s->mutex);
unlock_kernel();
return -EIO;
}
@ -735,7 +724,6 @@ static long dabusb_ioctl (struct file *file, unsigned int cmd, unsigned long arg
break;
}
mutex_unlock(&s->mutex);
unlock_kernel();
return ret;
}