The patch titled
freezer: take kernel_execve into consideration
has been added to the -mm tree. Its filename is
freezer-take-kernel_execve-into-consideration.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: freezer: take kernel_execve into consideration
From: Rafael J. Wysocki <rjw@xxxxxxx>
Kernel threads can become userland processes by calling kernel_execve(). In
particular, this may happen right after
try_to_freeze_tasks(FREEZER_USER_SPACE) has returned, so try_to_freeze_tasks()
needs to take userspace processes into consideration even if it is called with
FREEZER_KERNEL_THREADS.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Cc: Gautham R Shenoy <ego@xxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
kernel/power/process.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff -puN kernel/power/process.c~freezer-take-kernel_execve-into-consideration kernel/power/process.c
--- a/kernel/power/process.c~freezer-take-kernel_execve-into-consideration
+++ a/kernel/power/process.c
@@ -126,7 +126,7 @@ static unsigned int try_to_freeze_tasks(
cancel_freezing(p);
continue;
}
- if (is_user_space(p) == !freeze_user_space)
+ if (freeze_user_space && !is_user_space(p))
continue;
freeze_process(p);
@@ -153,7 +153,7 @@ static unsigned int try_to_freeze_tasks(
TIMEOUT / HZ, todo);
read_lock(&tasklist_lock);
do_each_thread(g, p) {
- if (is_user_space(p) == !freeze_user_space)
+ if (freeze_user_space && !is_user_space(p))
continue;
task_lock(p);
_
Patches currently in -mm which might be from rjw@xxxxxxx are
origin.patch
at91-fix-enable-disable_irq_wake-symmetry-in-pcmcia-driver.patch
freezer-read-pf_borrowed_mm-in-a-nonracy-way.patch
freezer-close-potential-race-between-refrigerator-and-thaw_tasks.patch
freezer-fix-vfork-problem.patch
freezer-take-kernel_execve-into-consideration.patch
freezer-fix-kthread_create-vs-freezer-theoretical-race.patch
freezer-fix-pf_nofreeze-vs-freezeable-race.patch
freezer-move-frozen_process-to-kernel-power-processc.patch
add-common-orderly_poweroff.patch
add-suspend-related-notifications-for-cpu-hotplug-statistics.patch
shrink_slab-handle-bad-shrinkers.patch
-
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