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Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

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* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  lockdep: Fix lockdep_no_validate against IRQ states
  mutex: Make mutex_destroy() an inline function
  plist: Remove the need to supply locks to plist heads
  lockup detector: Fix reference to the non-existent CONFIG_DETECT_SOFTLOCKUP option
This commit is contained in:
Linus Torvalds
2011-07-22 16:43:21 -07:00
parent 6d16d6d9bb efbe2eee6d
commit 75b56ec294
11 changed files with 20 additions and 71 deletions
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4
lib/Kconfig.debug
View File

@@ -227,7 +227,7 @@ config BOOTPARAM_SOFTLOCKUP_PANIC_VALUE
config DETECT_HUNG_TASK
bool "Detect Hung Tasks"
depends on DEBUG_KERNEL
default DETECT_SOFTLOCKUP
default LOCKUP_DETECTOR
help
Say Y here to enable the kernel to detect "hung tasks",
which are bugs that cause the task to be stuck in
@@ -866,7 +866,7 @@ config BOOT_PRINTK_DELAY
system, and then set "lpj=M" before setting "boot_delay=N".
NOTE: Using this option may adversely affect SMP systems.
I.e., processors other than the first one may not boot up.
BOOT_PRINTK_DELAY also may cause DETECT_SOFTLOCKUP to detect
BOOT_PRINTK_DELAY also may cause LOCKUP_DETECTOR to detect
what it believes to be lockup conditions.
config RCU_TORTURE_TEST

7
lib/plist.c
View File

@@ -56,11 +56,6 @@ static void plist_check_list(struct list_head *top)
static void plist_check_head(struct plist_head *head)
{
WARN_ON(head != &test_head && !head->rawlock && !head->spinlock);
if (head->rawlock)
WARN_ON_SMP(!raw_spin_is_locked(head->rawlock));
if (head->spinlock)
WARN_ON_SMP(!spin_is_locked(head->spinlock));
if (!plist_head_empty(head))
plist_check_list(&plist_first(head)->prio_list);
plist_check_list(&head->node_list);
@@ -180,7 +175,7 @@ static int __init plist_test(void)
unsigned int r = local_clock();
printk(KERN_INFO "start plist test\n");
plist_head_init(&test_head, NULL);
plist_head_init(&test_head);
for (i = 0; i < ARRAY_SIZE(test_node); i++)
plist_node_init(test_node + i, 0);