Messages in this thread | | | Date | Wed, 20 Feb 2013 13:05:07 +0400 | From | Cyrill Gorcunov <> | Subject | Re: [PATCH] freezer: configure user space process frozen along with kernel threads |
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On Wed, Feb 20, 2013 at 10:15:25AM +0800, Li Fei wrote: > > +#ifdef CONFIG_FREEZER > + > +static ssize_t freeze_late_read(struct file *file, char __user *buf, > + size_t count, loff_t *ppos) > +{ > + struct task_struct *task = get_proc_task(file->f_path.dentry->d_inode); > + char buffer[PROC_NUMBUF]; > + int freeze_late; > + size_t len; > + if (!task) > + return -ESRCH; > + freeze_late = (task->flags & PF_FREEZER_LATE) ? 1 : 0; > + len = snprintf(buffer, sizeof(buffer), "%d\n", freeze_late); > + return simple_read_from_buffer(buf, count, ppos, buffer, len); > +}
Don't you need put_task_struct() once you grabbed it?
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