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authorOleg Nesterov <oleg@tv-sign.ru>2008-07-25 04:47:37 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-25 13:53:39 -0400
commit3d749b9e676b26584a47e75c235aa6f69d0697ae (patch)
tree2db2dab84cde07c4872ac5e8d4078f2a3fc4271d /kernel/exit.c
parent364d3c13c17f45da6d638011078d4c4d3070d719 (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