Re: [PATCH] signal: Extend exec_id to 64bits

[Eric W. Biederman]

Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> writes:

> tasklist_lock is aboue the hottest lock there is in all of the kernel.

Do you know code paths you see tasklist_lock being hot?

I am looking at some of the exec/signal/ptrace code paths because they
get subtle corner case wrong like a threaded exec deadlocking when
straced.

If the performance problems are in the same neighbourhood I might be
able to fix those problems while I am in the code.

Eric