Question

The linux/shed.h contains the following forward declaration:

extern rwlock_t tasklist_lock;

But where is tasklist_lock defined?

Answer 1

tasklist_lock is references in sched.h, and defined in fork.c

I use “gid” as a tool to spelunk through the kernel source. I simply:

1) Install idutils

2) Run “mkid” (to generate a searchable index) from the root of my kernel source

3) run “gid MYVARIABLE | less” any time I want to look something up

“idutils” is freely available on most Linux distros, and on the Internet.

Here’s the documentation:

http://www.gnu.org/software/idutils/manual/idutils.html