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-rw-r--r--kernel/audit_tree.c3
-rw-r--r--kernel/irq/manage.c5
-rw-r--r--kernel/lockdep.c22
-rw-r--r--kernel/panic.c2
-rw-r--r--kernel/power/disk.c51
-rw-r--r--kernel/ptrace.c4
-rw-r--r--kernel/slow-work.c4
-rw-r--r--kernel/sysctl.c5
-rw-r--r--kernel/time/clocksource.c8
-rw-r--r--kernel/time/jiffies.c2
-rw-r--r--kernel/time/timekeeping.c12
11 files changed, 66 insertions, 52 deletions
diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 917ab9525568..6e7351739a82 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -734,9 +734,6 @@ int audit_tag_tree(char *old, char *new)
dentry = dget(path.dentry);
path_put(&path);
- if (dentry == tagged->mnt_root && dentry == mnt->mnt_root)
- follow_up(&mnt, &dentry);
-
list_add_tail(&list, &tagged->mnt_list);
mutex_lock(&audit_filter_mutex);
diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 7e2e7dd4cd2f..2734eca59243 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -109,10 +109,9 @@ int irq_set_affinity(unsigned int irq, const struct cpumask *cpumask)
spin_lock_irqsave(&desc->lock, flags);
#ifdef CONFIG_GENERIC_PENDING_IRQ
- if (desc->status & IRQ_MOVE_PCNTXT || desc->status & IRQ_DISABLED) {
- cpumask_copy(desc->affinity, cpumask);
+ if (desc->status & IRQ_MOVE_PCNTXT)
desc->chip->set_affinity(irq, cpumask);
- } else {
+ else {
desc->status |= IRQ_MOVE_PENDING;
cpumask_copy(desc->pending_mask, cpumask);
}
diff --git a/kernel/lockdep.c b/kernel/lockdep.c
index b0f011866969..accb40cdb12a 100644
--- a/kernel/lockdep.c
+++ b/kernel/lockdep.c
@@ -2490,13 +2490,20 @@ static int mark_lock(struct task_struct *curr, struct held_lock *this,
void lockdep_init_map(struct lockdep_map *lock, const char *name,
struct lock_class_key *key, int subclass)
{
- if (unlikely(!debug_locks))
+ lock->class_cache = NULL;
+#ifdef CONFIG_LOCK_STAT
+ lock->cpu = raw_smp_processor_id();
+#endif
+
+ if (DEBUG_LOCKS_WARN_ON(!name)) {
+ lock->name = "NULL";
return;
+ }
+
+ lock->name = name;
if (DEBUG_LOCKS_WARN_ON(!key))
return;
- if (DEBUG_LOCKS_WARN_ON(!name))
- return;
/*
* Sanity check, the lock-class key must be persistent:
*/
@@ -2505,12 +2512,11 @@ void lockdep_init_map(struct lockdep_map *lock, const char *name,
DEBUG_LOCKS_WARN_ON(1);
return;
}
- lock->name = name;
lock->key = key;
- lock->class_cache = NULL;
-#ifdef CONFIG_LOCK_STAT
- lock->cpu = raw_smp_processor_id();
-#endif
+
+ if (unlikely(!debug_locks))
+ return;
+
if (subclass)
register_lock_class(lock, subclass, 1);
}
diff --git a/kernel/panic.c b/kernel/panic.c
index 934fb377f4b3..3dcaa1661357 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -221,7 +221,7 @@ void add_taint(unsigned flag)
* post-warning case.
*/
if (flag != TAINT_CRAP && flag != TAINT_WARN && __debug_locks_off())
- printk(KERN_WARNING "Disabling lockdep due to kernel taint\n");
+ printk(KERN_WARNING "Disabling lock debugging due to kernel taint\n");
set_bit(flag, &tainted_mask);
}
diff --git a/kernel/power/disk.c b/kernel/power/disk.c
index 0854770b63b9..e71ca9cd81b2 100644
--- a/kernel/power/disk.c
+++ b/kernel/power/disk.c
@@ -646,13 +646,6 @@ static int software_resume(void)
return 0;
/*
- * We can't depend on SCSI devices being available after loading one of
- * their modules if scsi_complete_async_scans() is not called and the
- * resume device usually is a SCSI one.
- */
- scsi_complete_async_scans();
-
- /*
* name_to_dev_t() below takes a sysfs buffer mutex when sysfs
* is configured into the kernel. Since the regular hibernate
* trigger path is via sysfs which takes a buffer mutex before
@@ -663,32 +656,42 @@ static int software_resume(void)
* here to avoid lockdep complaining.
*/
mutex_lock_nested(&pm_mutex, SINGLE_DEPTH_NESTING);
+
+ if (swsusp_resume_device)
+ goto Check_image;
+
+ if (!strlen(resume_file)) {
+ error = -ENOENT;
+ goto Unlock;
+ }
+
+ pr_debug("PM: Checking image partition %s\n", resume_file);
+
+ /* Check if the device is there */
+ swsusp_resume_device = name_to_dev_t(resume_file);
if (!swsusp_resume_device) {
- if (!strlen(resume_file)) {
- mutex_unlock(&pm_mutex);
- return -ENOENT;
- }
/*
* Some device discovery might still be in progress; we need
* to wait for this to finish.
*/
wait_for_device_probe();
+ /*
+ * We can't depend on SCSI devices being available after loading
+ * one of their modules until scsi_complete_async_scans() is
+ * called and the resume device usually is a SCSI one.
+ */
+ scsi_complete_async_scans();
+
swsusp_resume_device = name_to_dev_t(resume_file);
- pr_debug("PM: Resume from partition %s\n", resume_file);
- } else {
- pr_debug("PM: Resume from partition %d:%d\n",
- MAJOR(swsusp_resume_device),
- MINOR(swsusp_resume_device));
+ if (!swsusp_resume_device) {
+ error = -ENODEV;
+ goto Unlock;
+ }
}
- if (noresume) {
- /**
- * FIXME: If noresume is specified, we need to find the
- * partition and reset it back to normal swap space.
- */
- mutex_unlock(&pm_mutex);
- return 0;
- }
+ Check_image:
+ pr_debug("PM: Resume from partition %d:%d\n",
+ MAJOR(swsusp_resume_device), MINOR(swsusp_resume_device));
pr_debug("PM: Checking hibernation image.\n");
error = swsusp_check();
diff --git a/kernel/ptrace.c b/kernel/ptrace.c
index dfcd83ceee3b..0692ab5a0d67 100644
--- a/kernel/ptrace.c
+++ b/kernel/ptrace.c
@@ -188,7 +188,7 @@ int ptrace_attach(struct task_struct *task)
/* Protect exec's credential calculations against our interference;
* SUID, SGID and LSM creds get determined differently under ptrace.
*/
- retval = mutex_lock_interruptible(&current->cred_exec_mutex);
+ retval = mutex_lock_interruptible(&task->cred_exec_mutex);
if (retval < 0)
goto out;
@@ -232,7 +232,7 @@ repeat:
bad:
write_unlock_irqrestore(&tasklist_lock, flags);
task_unlock(task);
- mutex_unlock(&current->cred_exec_mutex);
+ mutex_unlock(&task->cred_exec_mutex);
out:
return retval;
}
diff --git a/kernel/slow-work.c b/kernel/slow-work.c
index cf2bc01186ef..b28d19135f43 100644
--- a/kernel/slow-work.c
+++ b/kernel/slow-work.c
@@ -609,14 +609,14 @@ void slow_work_unregister_user(void)
if (slow_work_user_count == 0) {
printk(KERN_NOTICE "Slow work thread pool: Shutting down\n");
slow_work_threads_should_exit = true;
+ del_timer_sync(&slow_work_cull_timer);
+ del_timer_sync(&slow_work_oom_timer);
wake_up_all(&slow_work_thread_wq);
wait_for_completion(&slow_work_last_thread_exited);
printk(KERN_NOTICE "Slow work thread pool:"
" Shut down complete\n");
}
- del_timer_sync(&slow_work_cull_timer);
-
mutex_unlock(&slow_work_user_lock);
}
EXPORT_SYMBOL(slow_work_unregister_user);
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index e3d2c7dd59b9..ea78fa101ad6 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -103,6 +103,9 @@ static unsigned long one_ul = 1;
static int one_hundred = 100;
static int one_thousand = 1000;
+/* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */
+static unsigned long dirty_bytes_min = 2 * PAGE_SIZE;
+
/* this is needed for the proc_dointvec_minmax for [fs_]overflow UID and GID */
static int maxolduid = 65535;
static int minolduid;
@@ -1006,7 +1009,7 @@ static struct ctl_table vm_table[] = {
.mode = 0644,
.proc_handler = &dirty_bytes_handler,
.strategy = &sysctl_intvec,
- .extra1 = &one_ul,
+ .extra1 = &dirty_bytes_min,
},
{
.procname = "dirty_writeback_centisecs",
diff --git a/kernel/time/clocksource.c b/kernel/time/clocksource.c
index c46c931a7fe7..ecfd7b5187e0 100644
--- a/kernel/time/clocksource.c
+++ b/kernel/time/clocksource.c
@@ -181,12 +181,12 @@ static void clocksource_watchdog(unsigned long data)
resumed = test_and_clear_bit(0, &watchdog_resumed);
- wdnow = watchdog->read();
+ wdnow = watchdog->read(watchdog);
wd_nsec = cyc2ns(watchdog, (wdnow - watchdog_last) & watchdog->mask);
watchdog_last = wdnow;
list_for_each_entry_safe(cs, tmp, &watchdog_list, wd_list) {
- csnow = cs->read();
+ csnow = cs->read(cs);
if (unlikely(resumed)) {
cs->wd_last = csnow;
@@ -247,7 +247,7 @@ static void clocksource_check_watchdog(struct clocksource *cs)
list_add(&cs->wd_list, &watchdog_list);
if (!started && watchdog) {
- watchdog_last = watchdog->read();
+ watchdog_last = watchdog->read(watchdog);
watchdog_timer.expires = jiffies + WATCHDOG_INTERVAL;
add_timer_on(&watchdog_timer,
cpumask_first(cpu_online_mask));
@@ -268,7 +268,7 @@ static void clocksource_check_watchdog(struct clocksource *cs)
cse->flags &= ~CLOCK_SOURCE_WATCHDOG;
/* Start if list is not empty */
if (!list_empty(&watchdog_list)) {
- watchdog_last = watchdog->read();
+ watchdog_last = watchdog->read(watchdog);
watchdog_timer.expires =
jiffies + WATCHDOG_INTERVAL;
add_timer_on(&watchdog_timer,
diff --git a/kernel/time/jiffies.c b/kernel/time/jiffies.c
index 06f197560f3b..c3f6c30816e3 100644
--- a/kernel/time/jiffies.c
+++ b/kernel/time/jiffies.c
@@ -50,7 +50,7 @@
*/
#define JIFFIES_SHIFT 8
-static cycle_t jiffies_read(void)
+static cycle_t jiffies_read(struct clocksource *cs)
{
return (cycle_t) jiffies;
}
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index 900f1b6598d1..687dff49f6e7 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -182,7 +182,7 @@ EXPORT_SYMBOL(do_settimeofday);
*/
static void change_clocksource(void)
{
- struct clocksource *new;
+ struct clocksource *new, *old;
new = clocksource_get_next();
@@ -191,11 +191,16 @@ static void change_clocksource(void)
clocksource_forward_now();
- new->raw_time = clock->raw_time;
+ if (clocksource_enable(new))
+ return;
+ new->raw_time = clock->raw_time;
+ old = clock;
clock = new;
+ clocksource_disable(old);
+
clock->cycle_last = 0;
- clock->cycle_last = clocksource_read(new);
+ clock->cycle_last = clocksource_read(clock);
clock->error = 0;
clock->xtime_nsec = 0;
clocksource_calculate_interval(clock, NTP_INTERVAL_LENGTH);
@@ -292,6 +297,7 @@ void __init timekeeping_init(void)
ntp_init();
clock = clocksource_get_next();
+ clocksource_enable(clock);
clocksource_calculate_interval(clock, NTP_INTERVAL_LENGTH);
clock->cycle_last = clocksource_read(clock);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.