Commit 4bcb8232 authored by Oleg Nesterov's avatar Oleg Nesterov Committed by Linus Torvalds

exit: move check_stack_usage() to the end of do_exit()

It is not clear why check_stack_usage() is called so early and thus it
never checks the stack usage in, say, exit_notify() or
flush_ptrace_hw_breakpoint() or other functions which are only called by
do_exit().

Move the callsite down to the last preempt_disable/schedule.
Signed-off-by: default avatarOleg Nesterov <oleg@redhat.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent c39df5fa
...@@ -788,7 +788,6 @@ void do_exit(long code) ...@@ -788,7 +788,6 @@ void do_exit(long code)
disassociate_ctty(1); disassociate_ctty(1);
exit_task_namespaces(tsk); exit_task_namespaces(tsk);
exit_task_work(tsk); exit_task_work(tsk);
check_stack_usage();
exit_thread(); exit_thread();
/* /*
...@@ -842,6 +841,7 @@ void do_exit(long code) ...@@ -842,6 +841,7 @@ void do_exit(long code)
validate_creds_for_do_exit(tsk); validate_creds_for_do_exit(tsk);
check_stack_usage();
preempt_disable(); preempt_disable();
if (tsk->nr_dirtied) if (tsk->nr_dirtied)
__this_cpu_add(dirty_throttle_leaks, tsk->nr_dirtied); __this_cpu_add(dirty_throttle_leaks, tsk->nr_dirtied);
......
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