diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 10:43:11 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 10:43:11 -0700 |
| commit | 5704e44d283e907623e3775c1262f206a2c48cf3 (patch) | |
| tree | 0a981b24173e90854e7b7d812b35859e1e5f0174 /arch/um/drivers/harddog_kern.c | |
| parent | 91151240ed8e97cc4457dae4094153c2744f1eb8 (diff) | |
| parent | 6de5bd128d381ad88ac6d419a5e597048eb468cf (diff) | |
Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* '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
Diffstat (limited to 'arch/um/drivers/harddog_kern.c')
| -rw-r--r-- | arch/um/drivers/harddog_kern.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/arch/um/drivers/harddog_kern.c b/arch/um/drivers/harddog_kern.c index cfcac1ff4cf..86036276020 100644 --- a/arch/um/drivers/harddog_kern.c +++ b/arch/um/drivers/harddog_kern.c @@ -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; } |