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
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@@ -46,7 +46,6 @@
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#include <linux/init.h>
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#include <linux/proc_fs.h>
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#include <linux/miscdevice.h>
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#include <linux/smp_lock.h>
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#include <linux/spinlock.h>
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#include <asm/uaccess.h>
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@@ -261,16 +260,13 @@ printk("Preparing to start counters\n");
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*/
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static int perf_open(struct inode *inode, struct file *file)
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{
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lock_kernel();
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spin_lock(&perf_lock);
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if (perf_enabled) {
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spin_unlock(&perf_lock);
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unlock_kernel();
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return -EBUSY;
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}
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perf_enabled = 1;
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spin_unlock(&perf_lock);
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unlock_kernel();
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return 0;
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}
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