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

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* '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
parent 91151240ed 6de5bd128d
commit 5704e44d28
53 changed files with 348 additions and 403 deletions
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13
arch/um/drivers/harddog_kern.c
View File

@ -42,7 +42,7 @@
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/reboot.h>
#include <linux/smp_lock.h>
#include <linux/mutex.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <asm/uaccess.h>
@ -50,6 +50,7 @@
MODULE_LICENSE("GPL");
static DEFINE_MUTEX(harddog_mutex);
static DEFINE_SPINLOCK(lock);
static int timer_alive;
static int harddog_in_fd = -1;
@ -66,7 +67,7 @@ static int harddog_open(struct inode *inode, struct file *file)
int err = -EBUSY;
char *sock = NULL;
lock_kernel();
mutex_lock(&harddog_mutex);
spin_lock(&lock);
if(timer_alive)
goto err;
@ -83,11 +84,11 @@ static int harddog_open(struct inode *inode, struct file *file)
timer_alive = 1;
spin_unlock(&lock);
unlock_kernel();
mutex_unlock(&harddog_mutex);
return nonseekable_open(inode, file);
err:
spin_unlock(&lock);
unlock_kernel();
mutex_unlock(&harddog_mutex);
return err;
}
@ -153,9 +154,9 @@ static long harddog_ioctl(struct file *file,
{
long ret;
lock_kernel();
mutex_lock(&harddog_mutex);
ret = harddog_ioctl_unlocked(file, cmd, arg);
unlock_kernel();
mutex_unlock(&harddog_mutex);
return ret;
}

12
arch/um/drivers/hostaudio_kern.c
View File

@ -8,7 +8,7 @@
#include "linux/slab.h"
#include "linux/sound.h"
#include "linux/soundcard.h"
#include "linux/smp_lock.h"
#include "linux/mutex.h"
#include "asm/uaccess.h"
#include "init.h"
#include "os.h"
@ -63,6 +63,8 @@ static int set_mixer(char *name, int *add)
__uml_setup("mixer=", set_mixer, "mixer=<mixer device>\n" MIXER_HELP);
#endif
static DEFINE_MUTEX(hostaudio_mutex);
/* /dev/dsp file operations */
static ssize_t hostaudio_read(struct file *file, char __user *buffer,
@ -198,9 +200,9 @@ static int hostaudio_open(struct inode *inode, struct file *file)
w = 1;
kparam_block_sysfs_write(dsp);
lock_kernel();
mutex_lock(&hostaudio_mutex);
ret = os_open_file(dsp, of_set_rw(OPENFLAGS(), r, w), 0);
unlock_kernel();
mutex_unlock(&hostaudio_mutex);
kparam_unblock_sysfs_write(dsp);
if (ret < 0) {
@ -259,9 +261,9 @@ static int hostmixer_open_mixdev(struct inode *inode, struct file *file)
w = 1;
kparam_block_sysfs_write(mixer);
lock_kernel();
mutex_lock(&hostaudio_mutex);
ret = os_open_file(mixer, of_set_rw(OPENFLAGS(), r, w), 0);
unlock_kernel();
mutex_unlock(&hostaudio_mutex);
kparam_unblock_sysfs_write(mixer);
if (ret < 0) {

11
arch/um/drivers/ubd_kern.c
View File

@ -33,7 +33,7 @@
#include "linux/mm.h"
#include "linux/slab.h"
#include "linux/vmalloc.h"
#include "linux/smp_lock.h"
#include "linux/mutex.h"
#include "linux/blkpg.h"
#include "linux/genhd.h"
#include "linux/spinlock.h"
@ -100,6 +100,7 @@ static inline void ubd_set_bit(__u64 bit, unsigned char *data)
#define DRIVER_NAME "uml-blkdev"
static DEFINE_MUTEX(ubd_lock);
static DEFINE_MUTEX(ubd_mutex); /* replaces BKL, might not be needed */
static int ubd_open(struct block_device *bdev, fmode_t mode);
static int ubd_release(struct gendisk *disk, fmode_t mode);
@ -1101,7 +1102,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode)
struct ubd *ubd_dev = disk->private_data;
int err = 0;
lock_kernel();
mutex_lock(&ubd_mutex);
if(ubd_dev->count == 0){
err = ubd_open_dev(ubd_dev);
if(err){
@ -1120,7 +1121,7 @@ static int ubd_open(struct block_device *bdev, fmode_t mode)
err = -EROFS;
}*/
out:
unlock_kernel();
mutex_unlock(&ubd_mutex);
return err;
}
@ -1128,10 +1129,10 @@ static int ubd_release(struct gendisk *disk, fmode_t mode)
{
struct ubd *ubd_dev = disk->private_data;
lock_kernel();
mutex_lock(&ubd_mutex);
if(--ubd_dev->count == 0)
ubd_close_dev(ubd_dev);
unlock_kernel();
mutex_unlock(&ubd_mutex);
return 0;
}