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| author | Nikanth Karthikesan | 2008-01-30 13:32:59 +0100 |
|---|---|---|
| committer | Ingo Molnar | 2008-01-30 13:32:59 +0100 |
| commit | c68461b67d97739707b3fc57618f22091791f2af (patch) | |
| tree | 2e7a67df5f33a0472803b9da373450725fcdf0f8 /arch/x86/kernel/cpu/mcheck/mce_64.c | |
| parent | x86/pgtable: explain constant sign extension problem (diff) | |
| download | kernel-qcow2-linux-c68461b67d97739707b3fc57618f22091791f2af.tar.gz kernel-qcow2-linux-c68461b67d97739707b3fc57618f22091791f2af.tar.xz kernel-qcow2-linux-c68461b67d97739707b3fc57618f22091791f2af.zip | |
x86: change x86 machine check handler to use unlocked_ioctl instead
The machine check handler registers ioctl handler that is called
with the BKL held. Changing to register unlocked_ioctl instead.
Also mce ioctl handler does not seem to need any lock protection.
To: Andi Kleen <andi@firstfloor.org>
Cc: linux-kernel@vger.kernel.org
Cc: kernel-janitors@vger.kernel.org
Change the Machine check handler to use unlocked_ioctl instead of
ioctl handler. Also the mce ioctl handler does not need any lock
protection.
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/cpu/mcheck/mce_64.c')
| -rw-r--r-- | arch/x86/kernel/cpu/mcheck/mce_64.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/arch/x86/kernel/cpu/mcheck/mce_64.c b/arch/x86/kernel/cpu/mcheck/mce_64.c index bc6e35153d83..98b23d55fe6e 100644 --- a/arch/x86/kernel/cpu/mcheck/mce_64.c +++ b/arch/x86/kernel/cpu/mcheck/mce_64.c @@ -634,8 +634,7 @@ static unsigned int mce_poll(struct file *file, poll_table *wait) return 0; } -static int mce_ioctl(struct inode *i, struct file *f,unsigned int cmd, - unsigned long arg) +static long mce_ioctl(struct file *f, unsigned int cmd, unsigned long arg) { int __user *p = (int __user *)arg; @@ -664,7 +663,7 @@ static const struct file_operations mce_chrdev_ops = { .release = mce_release, .read = mce_read, .poll = mce_poll, - .ioctl = mce_ioctl, + .unlocked_ioctl = mce_ioctl, }; static struct miscdevice mce_log_device = { |