diff options
author | Oleg Nesterov <oleg@tv-sign.ru> | 2008-07-25 04:47:37 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-25 13:53:39 -0400 |
commit | 3d749b9e676b26584a47e75c235aa6f69d0697ae (patch) | |
tree | 2db2dab84cde07c4872ac5e8d4078f2a3fc4271d /kernel/exit.c | |
parent | 364d3c13c17f45da6d638011078d4c4d3070d719 (diff) |
ptrace: simplify ptrace_stop()->sigkill_pending() path
1. SIGKILL can't be blocked, remove this check from sigkill_pending().
2. When ptrace_stop() sees sigkill_pending() == T, it can just return.
Kill "int killed" and simplify the code. This also is more correct,
the tracer shouldn't see us in TASK_TRACED if we are not going to
stop.
I strongly believe this code needs further changes. We should do the "was
this task killed" check unconditionally, currently it depends on
arch_ptrace_stop_needed(). On the other hand, sigkill_pending() isn't
very clever. If the task was killed tkill(SIGKILL), the signal can be
already dequeued if the caller is do_exit().
Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Roland McGrath <roland@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/exit.c')
0 files changed, 0 insertions, 0 deletions