snapshot: Push BKL down into ioctl handlers
Push BKL down into ioctl handlers - snapshot device. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com> Signed-off-by: Andi Kleen <ak@linux.intel.com>
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ebb12db51f
Коммит
52d11025db
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@ -23,6 +23,7 @@
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#include <linux/console.h>
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#include <linux/cpu.h>
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#include <linux/freezer.h>
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#include <linux/smp_lock.h>
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#include <asm/uaccess.h>
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@ -164,8 +165,8 @@ static ssize_t snapshot_write(struct file *filp, const char __user *buf,
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return res;
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}
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static int snapshot_ioctl(struct inode *inode, struct file *filp,
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unsigned int cmd, unsigned long arg)
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static long snapshot_ioctl(struct file *filp, unsigned int cmd,
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unsigned long arg)
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{
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int error = 0;
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struct snapshot_data *data;
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@ -181,6 +182,8 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
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data = filp->private_data;
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lock_kernel();
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switch (cmd) {
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case SNAPSHOT_FREEZE:
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@ -389,7 +392,7 @@ static int snapshot_ioctl(struct inode *inode, struct file *filp,
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error = -ENOTTY;
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}
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unlock_kernel();
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return error;
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}
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@ -399,7 +402,7 @@ static const struct file_operations snapshot_fops = {
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.read = snapshot_read,
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.write = snapshot_write,
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.llseek = no_llseek,
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.ioctl = snapshot_ioctl,
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.unlocked_ioctl = snapshot_ioctl,
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};
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static struct miscdevice snapshot_device = {
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