The patch titled Subject: prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix has been added to the -mm tree. Its filename is prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> Subject: prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix add lengthy code comment from Oleg Cc: Kay Sievers <kay.sievers@xxxxxxxx> Cc: Lennart Poettering <lennart@xxxxxxxxxxxxxx> Cc: Oleg Nesterov <oleg@xxxxxxxxxx> Cc: Valdis Kletnieks <Valdis.Kletnieks@xxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- kernel/exit.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff -puN kernel/exit.c~prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix kernel/exit.c --- a/kernel/exit.c~prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix +++ a/kernel/exit.c @@ -724,7 +724,13 @@ static struct task_struct *find_new_reap } else if (father->signal->has_child_subreaper) { struct task_struct *reaper; - /* find the first ancestor marked as child_subreaper */ + /* + * Find the first ancestor marked as child_subreaper. + * Note that the code below checks same_thread_group(reaper, + * pid_ns->child_reaper). This is what we need to DTRT in a + * PID namespace. However we still need the check above, see + * http://marc.info/?l=linux-kernel&m=131385460420380 + */ for (reaper = father->real_parent; reaper != &init_task; reaper = reaper->real_parent) { _ Subject: Subject: prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix Patches currently in -mm which might be from akpm@xxxxxxxxxxxxxxxxxxxx are origin.patch mm-fix-warnings-regarding-enum-migrate_mode.patch linux-next.patch i-need-old-gcc.patch arch-alpha-kernel-systblss-remove-debug-check.patch arch-x86-platform-iris-irisc-register-a-platform-device-and-a-platform-driver.patch x86-olpc-xo15-sci-enable-lid-close-wakeup-control-through-sysfs.patch drivers-platform-x86-sony-laptopc-fix-scancodes.patch drivers-scsi-mpt2sas-mpt2sas_scsihc-spell-primitive-correctly.patch drivers-scsi-megaraidc-fix-sparse-warnings-checkpatch-fixes.patch drivers-usb-misc-emi26c-emi62c-fix-warnings.patch mm.patch mm-add-extra-free-kbytes-tunable-update-checkpatch-fixes.patch audit-treat-s_id-as-an-untrusted-string.patch hpet-factor-timer-allocate-from-open.patch drivers-idle-intel_idlec-remove-redundant-local_irq_disable-call.patch prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix.patch prctl-add-pr_setget_child_subreaper-to-allow-simple-process-supervision-fix-fix.patch brlocks-lglocks-cleanups-checkpatch-fixes.patch notify_change-check-that-i_mutex-is-held.patch journal_add_journal_head-debug.patch mutex-subsystem-synchro-test-module-fix.patch slab-leaks3-default-y.patch put_bh-debug.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html