Re: 2.6.7-rc2-mm1

[Christoph Hellwig]

> - merged perfctr.  No documentation though :(

+/* tid is the actual task/thread id (népid, stored as ->pid),
+   pid/tgid is that 2.6 thread group id crap (stored as ->tgid) */
+asmlinkage long sys_vperfctr_open(int tid, int creat)
+{
+       struct file *filp;
+       struct task_struct *tsk;
+       struct vperfctr *perfctr;
+       int err;
+       int fd;
+
+       if (!vperfctr_fs_init_done())
+               return -ENODEV;
+       filp = vperfctr_get_filp();
+       if (!filp)
+               return -ENOMEM;
+       err = fd = get_unused_fd();

This really, really screams "I want to be a special file", so the interface
still doesn't look okay.  Probably in /proc/pid. 
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