The patch titled
freezer: remove PF_NOFREEZE from bluetooth threads
has been added to the -mm tree. Its filename is
freezer-remove-pf_nofreeze-from-bluetooth-threads.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: remove PF_NOFREEZE from bluetooth threads
From: Rafael J. Wysocki <rjw@xxxxxxx>
Remove PF_NOFREEZE from the bluetooth threads, adding try_to_freeze() calls as
required.
Signed-off-by: Rafael J. Wysocki <rjw@xxxxxxx>
Acked-by: Pavel Machek <pavel@xxxxxx>
Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
Cc: Oleg Nesterov <oleg@xxxxxxxxxx>
Cc: Aneesh Kumar <aneesh.kumar@xxxxxxxxx>
Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>
Cc: Srivatsa Vaddagiri <vatsa@xxxxxxxxxx>
Cc: Gautham R Shenoy <ego@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
net/bluetooth/bnep/core.c | 4 +++-
net/bluetooth/cmtp/core.c | 4 +++-
net/bluetooth/hidp/core.c | 4 +++-
net/bluetooth/rfcomm/core.c | 4 +++-
4 files changed, 12 insertions(+), 4 deletions(-)
diff -puN net/bluetooth/bnep/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads net/bluetooth/bnep/core.c
--- a/net/bluetooth/bnep/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads
+++ a/net/bluetooth/bnep/core.c
@@ -39,6 +39,7 @@
#include <linux/errno.h>
#include <linux/smp_lock.h>
#include <linux/net.h>
+#include <linux/freezer.h>
#include <net/sock.h>
#include <linux/socket.h>
@@ -473,11 +474,12 @@ static int bnep_session(void *arg)
daemonize("kbnepd %s", dev->name);
set_user_nice(current, -15);
- current->flags |= PF_NOFREEZE;
init_waitqueue_entry(&wait, current);
add_wait_queue(sk->sk_sleep, &wait);
while (!atomic_read(&s->killed)) {
+ try_to_freeze();
+
set_current_state(TASK_INTERRUPTIBLE);
// RX
diff -puN net/bluetooth/cmtp/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads net/bluetooth/cmtp/core.c
--- a/net/bluetooth/cmtp/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads
+++ a/net/bluetooth/cmtp/core.c
@@ -34,6 +34,7 @@
#include <linux/ioctl.h>
#include <linux/file.h>
#include <linux/init.h>
+#include <linux/freezer.h>
#include <net/sock.h>
#include <linux/isdn/capilli.h>
@@ -287,11 +288,12 @@ static int cmtp_session(void *arg)
daemonize("kcmtpd_ctr_%d", session->num);
set_user_nice(current, -15);
- current->flags |= PF_NOFREEZE;
init_waitqueue_entry(&wait, current);
add_wait_queue(sk->sk_sleep, &wait);
while (!atomic_read(&session->terminate)) {
+ try_to_freeze();
+
set_current_state(TASK_INTERRUPTIBLE);
if (sk->sk_state != BT_CONNECTED)
diff -puN net/bluetooth/hidp/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads net/bluetooth/hidp/core.c
--- a/net/bluetooth/hidp/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads
+++ a/net/bluetooth/hidp/core.c
@@ -35,6 +35,7 @@
#include <linux/file.h>
#include <linux/init.h>
#include <linux/wait.h>
+#include <linux/freezer.h>
#include <net/sock.h>
#include <linux/input.h>
@@ -547,13 +548,14 @@ static int hidp_session(void *arg)
daemonize("khidpd_%04x%04x", vendor, product);
set_user_nice(current, -15);
- current->flags |= PF_NOFREEZE;
init_waitqueue_entry(&ctrl_wait, current);
init_waitqueue_entry(&intr_wait, current);
add_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
add_wait_queue(intr_sk->sk_sleep, &intr_wait);
while (!atomic_read(&session->terminate)) {
+ try_to_freeze();
+
set_current_state(TASK_INTERRUPTIBLE);
if (ctrl_sk->sk_state != BT_CONNECTED || intr_sk->sk_state != BT_CONNECTED)
diff -puN net/bluetooth/rfcomm/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads net/bluetooth/rfcomm/core.c
--- a/net/bluetooth/rfcomm/core.c~freezer-remove-pf_nofreeze-from-bluetooth-threads
+++ a/net/bluetooth/rfcomm/core.c
@@ -37,6 +37,7 @@
#include <linux/device.h>
#include <linux/net.h>
#include <linux/mutex.h>
+#include <linux/freezer.h>
#include <net/sock.h>
#include <asm/uaccess.h>
@@ -1851,6 +1852,8 @@ static void rfcomm_worker(void)
BT_DBG("");
while (!atomic_read(&terminate)) {
+ try_to_freeze();
+
if (!test_bit(RFCOMM_SCHED_WAKEUP, &rfcomm_event)) {
/* No pending events. Let's sleep.
* Incoming connections and data will wake us up. */
@@ -1937,7 +1940,6 @@ static int rfcomm_run(void *unused)
daemonize("krfcommd");
set_user_nice(current, -10);
- current->flags |= PF_NOFREEZE;
BT_DBG("");
_
Patches currently in -mm which might be from rjw@xxxxxxx are
make-xfs-workqueues-nonfreezable.patch
fix-refrigerator-vs-thaw_process-race.patch
freezer-task-exit_state-should-be-treated-as-bolean.patch
documentation-ask-driver-writers-to-provide-pm-support.patch
freezer-read-pf_borrowed_mm-in-a-nonracy-way.patch
freezer-close-theoretical-race-between-refrigerator-and-thaw_tasks.patch
freezer-remove-pf_nofreeze-from-rcutorture-thread.patch
freezer-remove-pf_nofreeze-from-bluetooth-threads.patch
freezer-add-try_to_freeze-calls-to-all-kernel-threads.patch
freezer-fix-vfork-problem.patch
freezer-take-kernel_execve-into-consideration.patch
shrink_slab-handle-bad-shrinkers.patch
-
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