Change exit_ptrace() to use ptrace_do_detach() and kill now unused
ptrace_utrace_exit().
This means we can't iterate over -ptraced (the current code does this
twice) under tasklist, change the code to pick tracees by one and do
get/put on task_struct.
With this patch, exit_ptrace() does
Now we can kill -ptrace check in ptrace_attach_task(), if the task is
not dead we always clear -ptrace before UTRACE_DETACH.
This reverts most part of
[PATCH 09] move -ptrace == 0 checks to ptrace_attach_task(), but
I am just sending the new patch on top of previous changes to avoid
the
On 08/21, Oleg Nesterov wrote:
On 08/21, Srikar Dronamraju wrote:
Please note the comment, this check relies on UTRACE_ATTACH_EXCLUSIVE
above. Once we see -ptrace = 0 after utrace_attach_task(), nobody
can change -ptrace.
However after attaching an engine exclusively, (which would
