The patch titled
restore ->pdeath_signal behaviour
has been added to the -mm tree. Its filename is
restore-pdeath_signal-behaviour.patch
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: restore ->pdeath_signal behaviour
From: Oleg Nesterov <oleg@xxxxxxxxxx>
Commit b2b2cbc4b2a2f389442549399a993a8306420baf introduced a user-visible
change: ->pdeath_signal is sent only when the entire thread group exits.
While this change is imho good, it may break things. Restore an old behaviour
for now.
Signed-off-by: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Cc: Roland McGrath <roland@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
kernel/exit.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff -puN kernel/exit.c~restore-pdeath_signal-behaviour kernel/exit.c
--- a/kernel/exit.c~restore-pdeath_signal-behaviour
+++ a/kernel/exit.c
@@ -597,6 +597,10 @@ choose_new_parent(struct task_struct *p,
static void
reparent_thread(struct task_struct *p, struct task_struct *father, int traced)
{
+ if (p->pdeath_signal)
+ /* We already hold the tasklist_lock here. */
+ group_send_sig_info(p->pdeath_signal, SEND_SIG_NOINFO, p);
+
/* Move the child from its dying parent to the new one. */
if (unlikely(traced)) {
/* Preserve ptrace links if someone else is tracing this child. */
@@ -631,10 +635,6 @@ reparent_thread(struct task_struct *p, s
/* We don't want people slaying init. */
if (p->exit_signal != -1)
p->exit_signal = SIGCHLD;
-
- if (p->pdeath_signal)
- /* We already hold the tasklist_lock here. */
- group_send_sig_info(p->pdeath_signal, SEND_SIG_NOINFO, p);
/* If we'd notified the old parent about this child's death,
* also notify the new parent.
_
Patches currently in -mm which might be from oleg@xxxxxxxxxx are
restore-pdeath_signal-behaviour.patch
doc-atomic_add_unless-doesnt-imply-mb-on-failure.patch
vt-refactor-console-sak-processing.patch
procfs-fix-race-between-proc_readdir-and-remove_proc_entry.patch
procfs-fix-race-between-proc_readdir-and-remove_proc_entry-fix.patch
kill_pid_info-kill-acquired_tasklist_lock.patch
tty-make-__proc_set_tty-static.patch
tty-clarify-disassociate_ctty.patch
tty-fix-the-locking-for-signal-session-in-disassociate_ctty.patch
signal-use-kill_pgrp-not-kill_pg-in-the-sunos-compatibility-code.patch
signal-rewrite-kill_something_info-so-it-uses-newer-helpers.patch
pid-make-session_of_pgrp-use-struct-pid-instead-of-pid_t.patch
pid-use-struct-pid-for-talking-about-process-groups-in-exitc.patch
pid-replace-is_orphaned_pgrp-with-is_current_pgrp_orphaned.patch
tty-update-the-tty-layer-to-work-with-struct-pid.patch
pid-replace-do-while_each_task_pid-with-do-while_each_pid_task.patch
pid-remove-now-unused-do_each_task_pid-and-while_each_task_pid.patch
pid-remove-the-now-unused-kill_pg-kill_pg_info-and-__kill_pg_info.patch
-
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