2 Apr
2020
2 Apr
'20
2:05 a.m.
On Wed, Apr 1, 2020 at 6:36 PM Jann Horn jannh@google.com wrote:
Since the read is already protected by the tasklist_lock, an alternative might be to let the execve path also take that lock to protect the sequence number update,
No.
tasklist_lock is aboue the hottest lock there is in all of the kernel.
We're not doing stupid things for theoretical issues.
Stop this crazy argument.
A comment - sure. 64-bit atomics or very expensive locks? Not a chance.
Linus