Now that we have <asm-*/smplock.h> remove and everything in
<linux/smp_lock.h> we can move the definition/export of kernel_flag
to common code. Also cleanup smp_lock.h a little more.
You can import this changeset into BK by piping this whole message to:
'| bk receive [path to repository]' or apply the patch as usual.
===================================================================
ChangeSet@1.509, 2002-08-23 13:56:54+02:00, hch@sb.bsdonline.org
Cleanup BKL handling and move kernel_flag definition to common code
arch/alpha/kernel/alpha_ksyms.c | 2 -
arch/alpha/kernel/smp.c | 2 -
arch/arm/kernel/armksyms.c | 4 --
arch/arm/kernel/setup.c | 4 --
arch/i386/kernel/i386_ksyms.c | 1
arch/i386/kernel/smp.c | 4 --
arch/ia64/kernel/ia64_ksyms.c | 4 --
arch/ia64/kernel/smp.c | 8 ----
arch/mips/kernel/smp.c | 1
arch/mips64/kernel/smp.c | 1
arch/parisc/kernel/parisc_ksyms.c | 3 -
arch/ppc/kernel/ppc_ksyms.c | 3 -
arch/ppc/kernel/smp.c | 1
arch/ppc64/kernel/ppc_ksyms.c | 1
arch/ppc64/kernel/smp.c | 1
arch/s390/kernel/smp.c | 3 -
arch/s390x/kernel/smp.c | 3 -
arch/sparc/kernel/smp.c | 3 -
arch/sparc/kernel/sparc_ksyms.c | 7 ----
arch/sparc64/kernel/smp.c | 3 -
arch/sparc64/kernel/sparc64_ksyms.c | 8 ----
arch/x86_64/kernel/smp.c | 3 -
arch/x86_64/kernel/x8664_ksyms.c | 1
include/linux/smp_lock.h | 61 ++++++++++++++++--------------------
kernel/ksyms.c | 4 ++
kernel/sched.c | 15 ++++++++
26 files changed, 48 insertions, 103 deletions
diff -Nru a/arch/alpha/kernel/alpha_ksyms.c b/arch/alpha/kernel/alpha_ksyms.c
--- a/arch/alpha/kernel/alpha_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/alpha/kernel/alpha_ksyms.c Fri Aug 23 14:19:06 2002
@@ -40,7 +40,6 @@
extern struct hwrpb_struct *hwrpb;
extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu(struct pt_regs *, elf_fpregset_t *);
-extern spinlock_t kernel_flag;
extern spinlock_t rtc_lock;
/* these are C runtime functions with special calling conventions: */
@@ -207,7 +206,6 @@
*/
#ifdef CONFIG_SMP
-EXPORT_SYMBOL(kernel_flag);
EXPORT_SYMBOL(synchronize_irq);
EXPORT_SYMBOL(flush_tlb_all);
EXPORT_SYMBOL(flush_tlb_mm);
diff -Nru a/arch/alpha/kernel/smp.c b/arch/alpha/kernel/smp.c
--- a/arch/alpha/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/alpha/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -67,8 +67,6 @@
IPI_CPU_STOP,
};
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-
/* Set to a secondary's cpuid when it comes online. */
static int smp_secondary_alive __initdata = 0;
diff -Nru a/arch/arm/kernel/armksyms.c b/arch/arm/kernel/armksyms.c
--- a/arch/arm/kernel/armksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/arm/kernel/armksyms.c Fri Aug 23 14:19:06 2002
@@ -273,7 +273,3 @@
EXPORT_SYMBOL_NOVERS(__up_wakeup);
EXPORT_SYMBOL(get_wchan);
-
-#ifdef CONFIG_PREEMPT
-EXPORT_SYMBOL(kernel_flag);
-#endif
diff -Nru a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
--- a/arch/arm/kernel/setup.c Fri Aug 23 14:19:06 2002
+++ b/arch/arm/kernel/setup.c Fri Aug 23 14:19:06 2002
@@ -36,10 +36,6 @@
#define MEM_SIZE (16*1024*1024)
#endif
-#ifdef CONFIG_PREEMPT
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-#endif
-
#if defined(CONFIG_FPE_NWFPE) || defined(CONFIG_FPE_FASTFPE)
char fpe_type[8];
diff -Nru a/arch/i386/kernel/i386_ksyms.c b/arch/i386/kernel/i386_ksyms.c
--- a/arch/i386/kernel/i386_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/i386/kernel/i386_ksyms.c Fri Aug 23 14:19:06 2002
@@ -126,7 +126,6 @@
#ifdef CONFIG_SMP
EXPORT_SYMBOL(cpu_data);
-EXPORT_SYMBOL(kernel_flag);
EXPORT_SYMBOL(cpu_online_map);
EXPORT_SYMBOL_NOVERS(__write_lock_failed);
EXPORT_SYMBOL_NOVERS(__read_lock_failed);
diff -Nru a/arch/i386/kernel/smp.c b/arch/i386/kernel/smp.c
--- a/arch/i386/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/i386/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -18,6 +18,7 @@
#include <linux/kernel_stat.h>
#include <linux/mc146818rtc.h>
#include <linux/cache.h>
+#include <linux/interrupt.h>
#include <asm/mtrr.h>
#include <asm/pgalloc.h>
@@ -102,9 +103,6 @@
* or are signal timing bugs worked around in hardware and there's
* about nothing of note with C stepping upwards.
*/
-
-/* The 'big kernel lock' */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
struct tlb_state cpu_tlbstate[NR_CPUS] __cacheline_aligned = {[0 ... NR_CPUS-1] = { &init_mm, 0, }};
diff -Nru a/arch/ia64/kernel/ia64_ksyms.c b/arch/ia64/kernel/ia64_ksyms.c
--- a/arch/ia64/kernel/ia64_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/ia64/kernel/ia64_ksyms.c Fri Aug 23 14:19:06 2002
@@ -84,10 +84,6 @@
EXPORT_SYMBOL(smp_call_function_single);
EXPORT_SYMBOL(cpu_online_map);
EXPORT_SYMBOL(ia64_cpu_to_sapicid);
-
-#include <asm/smplock.h>
-EXPORT_SYMBOL(kernel_flag);
-
#else /* !CONFIG_SMP */
EXPORT_SYMBOL(__flush_tlb_all);
diff -Nru a/arch/ia64/kernel/smp.c b/arch/ia64/kernel/smp.c
--- a/arch/ia64/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/ia64/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -53,14 +53,6 @@
#include <asm/mca.h>
/*
- * The Big Kernel Lock. It's not supposed to be used for performance critical stuff
- * anymore. But we still need to align it because certain workloads are still affected by
- * it. For example, llseek() and various other filesystem related routines still use the
- * BKL.
- */
-spinlock_t kernel_flag __cacheline_aligned = SPIN_LOCK_UNLOCKED;
-
-/*
* Structure and data for smp_call_function(). This is designed to minimise static memory
* requirements. It also looks cleaner.
*/
diff -Nru a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
--- a/arch/mips/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/mips/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -53,7 +53,6 @@
/* Ze Big Kernel Lock! */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
int smp_threads_ready; /* Not used */
int smp_num_cpus;
int global_irq_holder = NO_PROC_ID;
diff -Nru a/arch/mips64/kernel/smp.c b/arch/mips64/kernel/smp.c
--- a/arch/mips64/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/mips64/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -53,7 +53,6 @@
#endif /* CONFIG_SGI_IP27 */
/* The 'big kernel lock' */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
int smp_threads_ready; /* Not used */
atomic_t smp_commenced = ATOMIC_INIT(0);
struct cpuinfo_mips cpu_data[NR_CPUS];
diff -Nru a/arch/parisc/kernel/parisc_ksyms.c b/arch/parisc/kernel/parisc_ksyms.c
--- a/arch/parisc/kernel/parisc_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/parisc/kernel/parisc_ksyms.c Fri Aug 23 14:19:06 2002
@@ -35,9 +35,6 @@
#ifdef CONFIG_SMP
EXPORT_SYMBOL(synchronize_irq);
-#include <asm/smplock.h>
-EXPORT_SYMBOL(kernel_flag);
-
#include <asm/system.h>
EXPORT_SYMBOL(__global_sti);
EXPORT_SYMBOL(__global_cli);
diff -Nru a/arch/ppc/kernel/ppc_ksyms.c b/arch/ppc/kernel/ppc_ksyms.c
--- a/arch/ppc/kernel/ppc_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/ppc/kernel/ppc_ksyms.c Fri Aug 23 14:19:06 2002
@@ -93,9 +93,6 @@
EXPORT_SYMBOL(disable_irq);
EXPORT_SYMBOL(disable_irq_nosync);
EXPORT_SYMBOL(probe_irq_mask);
-#ifdef CONFIG_SMP
-EXPORT_SYMBOL(kernel_flag);
-#endif /* CONFIG_SMP */
EXPORT_SYMBOL(ISA_DMA_THRESHOLD);
EXPORT_SYMBOL_NOVERS(DMA_MODE_READ);
diff -Nru a/arch/ppc/kernel/smp.c b/arch/ppc/kernel/smp.c
--- a/arch/ppc/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/ppc/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -47,7 +47,6 @@
struct klock_info_struct klock_info = { KLOCK_CLEAR, 0 };
atomic_t ipi_recv;
atomic_t ipi_sent;
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
unsigned int prof_multiplier[NR_CPUS] = { [1 ... NR_CPUS-1] = 1 };
unsigned int prof_counter[NR_CPUS] = { [1 ... NR_CPUS-1] = 1 };
unsigned long cache_decay_ticks = HZ/100;
diff -Nru a/arch/ppc64/kernel/ppc_ksyms.c b/arch/ppc64/kernel/ppc_ksyms.c
--- a/arch/ppc64/kernel/ppc_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/ppc64/kernel/ppc_ksyms.c Fri Aug 23 14:19:06 2002
@@ -74,7 +74,6 @@
EXPORT_SYMBOL(disable_irq_nosync);
#ifdef CONFIG_SMP
EXPORT_SYMBOL(synchronize_irq);
-EXPORT_SYMBOL(kernel_flag);
#endif /* CONFIG_SMP */
EXPORT_SYMBOL(register_ioctl32_conversion);
diff -Nru a/arch/ppc64/kernel/smp.c b/arch/ppc64/kernel/smp.c
--- a/arch/ppc64/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/ppc64/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -51,7 +51,6 @@
#include <asm/machdep.h>
int smp_threads_ready = 0;
-spinlock_t kernel_flag __cacheline_aligned = SPIN_LOCK_UNLOCKED;
unsigned long cache_decay_ticks;
/* initialised so it doesnt end up in bss */
diff -Nru a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
--- a/arch/s390/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/s390/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -54,8 +54,6 @@
int smp_threads_ready=0; /* Set when the idlers are all forked. */
static atomic_t smp_commenced = ATOMIC_INIT(0);
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-
volatile unsigned long phys_cpu_present_map;
volatile unsigned long cpu_online_map;
unsigned long cache_decay_ticks = 0;
@@ -634,7 +632,6 @@
}
EXPORT_SYMBOL(lowcore_ptr);
-EXPORT_SYMBOL(kernel_flag);
EXPORT_SYMBOL(smp_ctl_set_bit);
EXPORT_SYMBOL(smp_ctl_clear_bit);
EXPORT_SYMBOL(smp_num_cpus);
diff -Nru a/arch/s390x/kernel/smp.c b/arch/s390x/kernel/smp.c
--- a/arch/s390x/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/s390x/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -53,8 +53,6 @@
int smp_threads_ready=0; /* Set when the idlers are all forked. */
static atomic_t smp_commenced = ATOMIC_INIT(0);
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-
volatile unsigned long phys_cpu_present_map;
volatile unsigned long cpu_online_map;
unsigned long cache_decay_ticks = 0;
@@ -613,7 +611,6 @@
}
EXPORT_SYMBOL(lowcore_ptr);
-EXPORT_SYMBOL(kernel_flag);
EXPORT_SYMBOL(smp_ctl_set_bit);
EXPORT_SYMBOL(smp_ctl_clear_bit);
EXPORT_SYMBOL(smp_num_cpus);
diff -Nru a/arch/sparc/kernel/smp.c b/arch/sparc/kernel/smp.c
--- a/arch/sparc/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/sparc/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -66,9 +66,6 @@
* instruction which is much better...
*/
-/* Kernel spinlock */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-
/* Used to make bitops atomic */
unsigned char bitops_spinlock = 0;
diff -Nru a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
--- a/arch/sparc/kernel/sparc_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/sparc/kernel/sparc_ksyms.c Fri Aug 23 14:19:06 2002
@@ -77,10 +77,6 @@
extern void dump_thread(struct pt_regs *, struct user *);
-#ifdef CONFIG_SMP
-extern spinlock_t kernel_flag;
-#endif
-
/* One thing to note is that the way the symbols of the mul/div
* support routines are named is a mess, they all start with
* a '.' which makes it a bitch to export, here is the trick:
@@ -130,9 +126,6 @@
EXPORT_SYMBOL_PRIVATE(_change_bit);
#ifdef CONFIG_SMP
-/* Kernel wide locking */
-EXPORT_SYMBOL(kernel_flag);
-
/* IRQ implementation. */
EXPORT_SYMBOL(global_irq_holder);
EXPORT_SYMBOL(synchronize_irq);
diff -Nru a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
--- a/arch/sparc64/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/sparc64/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -46,9 +46,6 @@
/* Please don't make this stuff initdata!!! --DaveM */
static unsigned char boot_cpu_id;
-/* Kernel spinlock */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-
atomic_t sparc64_num_cpus_online = ATOMIC_INIT(0);
unsigned long cpu_online_map = 0;
atomic_t sparc64_num_cpus_possible = ATOMIC_INIT(0);
diff -Nru a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
--- a/arch/sparc64/kernel/sparc64_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/sparc64/kernel/sparc64_ksyms.c Fri Aug 23 14:19:06 2002
@@ -101,9 +101,7 @@
extern void dump_thread(struct pt_regs *, struct user *);
extern int dump_fpu (struct pt_regs * regs, elf_fpregset_t * fpregs);
-#ifdef CONFIG_SMP
-extern spinlock_t kernel_flag;
-#ifdef CONFIG_DEBUG_SPINLOCK
+#if defined(CONFIG_SMP) && defined(CONFIG_DEBUG_SPINLOCK)
extern void _do_spin_lock (spinlock_t *lock, char *str);
extern void _do_spin_unlock (spinlock_t *lock);
extern int _spin_trylock (spinlock_t *lock);
@@ -112,7 +110,6 @@
extern void _do_write_lock(rwlock_t *rw, char *str);
extern void _do_write_unlock(rwlock_t *rw);
#endif
-#endif
extern unsigned long phys_base;
extern unsigned long pfn_base;
@@ -126,9 +123,6 @@
EXPORT_SYMBOL(__write_lock);
EXPORT_SYMBOL(__write_unlock);
#endif
-
-/* Kernel wide locking */
-EXPORT_SYMBOL(kernel_flag);
/* Hard IRQ locking */
#ifdef CONFIG_SMP
diff -Nru a/arch/x86_64/kernel/smp.c b/arch/x86_64/kernel/smp.c
--- a/arch/x86_64/kernel/smp.c Fri Aug 23 14:19:06 2002
+++ b/arch/x86_64/kernel/smp.c Fri Aug 23 14:19:06 2002
@@ -22,9 +22,6 @@
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
-/* The 'big kernel lock' */
-spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
-
/*
* the following functions deal with sending IPIs between CPUs.
*
diff -Nru a/arch/x86_64/kernel/x8664_ksyms.c b/arch/x86_64/kernel/x8664_ksyms.c
--- a/arch/x86_64/kernel/x8664_ksyms.c Fri Aug 23 14:19:06 2002
+++ b/arch/x86_64/kernel/x8664_ksyms.c Fri Aug 23 14:19:06 2002
@@ -109,7 +109,6 @@
#ifdef CONFIG_SMP
EXPORT_SYMBOL(cpu_data);
-EXPORT_SYMBOL(kernel_flag);
EXPORT_SYMBOL(smp_num_cpus);
EXPORT_SYMBOL(cpu_online_map);
EXPORT_SYMBOL_NOVERS(__write_lock_failed);
diff -Nru a/include/linux/smp_lock.h b/include/linux/smp_lock.h
--- a/include/linux/smp_lock.h Fri Aug 23 14:19:06 2002
+++ b/include/linux/smp_lock.h Fri Aug 23 14:19:06 2002
@@ -2,21 +2,10 @@
#define __LINUX_SMPLOCK_H
#include <linux/config.h>
-
-#if !defined(CONFIG_SMP) && !defined(CONFIG_PREEMPT)
-
-#define lock_kernel() do { } while(0)
-#define unlock_kernel() do { } while(0)
-#define release_kernel_lock(task) do { } while(0)
-#define reacquire_kernel_lock(task) do { } while(0)
-#define kernel_locked() 1
-
-#else
-
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
#include <linux/sched.h>
-#include <asm/current.h>
+#include <linux/spinlock.h>
+
+#if CONFIG_SMP || CONFIG_PREEMPT
extern spinlock_t kernel_flag;
@@ -26,23 +15,22 @@
#define put_kernel_lock() spin_unlock(&kernel_flag)
/*
- * Release global kernel lock and global interrupt lock
+ * Release global kernel lock.
*/
-#define release_kernel_lock(task) \
-do { \
- if (unlikely(task->lock_depth >= 0)) \
- put_kernel_lock(); \
-} while (0)
+static inline void release_kernel_lock(struct task_struct *task)
+{
+ if (unlikely(task->lock_depth >= 0))
+ put_kernel_lock();
+}
/*
* Re-acquire the kernel lock
*/
-#define reacquire_kernel_lock(task) \
-do { \
- if (unlikely(task->lock_depth >= 0)) \
- get_kernel_lock(); \
-} while (0)
-
+static inline void reacquire_kernel_lock(struct task_struct *task)
+{
+ if (unlikely(task->lock_depth >= 0))
+ get_kernel_lock();
+}
/*
* Getting the big kernel lock.
@@ -51,22 +39,29 @@
* so we only need to worry about other
* CPU's.
*/
-static __inline__ void lock_kernel(void)
+static inline void lock_kernel(void)
{
int depth = current->lock_depth+1;
- if (!depth)
+ if (likely(!depth))
get_kernel_lock();
current->lock_depth = depth;
}
-static __inline__ void unlock_kernel(void)
+static inline void unlock_kernel(void)
{
- if (current->lock_depth < 0)
+ if (unlikely(current->lock_depth < 0))
BUG();
- if (--current->lock_depth < 0)
+ if (likely(--current->lock_depth < 0))
put_kernel_lock();
}
-#endif /* CONFIG_SMP */
+#else
+
+#define lock_kernel() do { } while(0)
+#define unlock_kernel() do { } while(0)
+#define release_kernel_lock(task) do { } while(0)
+#define reacquire_kernel_lock(task) do { } while(0)
+#define kernel_locked() 1
-#endif
+#endif /* CONFIG_SMP || CONFIG_PREEMPT */
+#endif /* __LINUX_SMPLOCK_H */
diff -Nru a/kernel/ksyms.c b/kernel/ksyms.c
--- a/kernel/ksyms.c Fri Aug 23 14:19:06 2002
+++ b/kernel/ksyms.c Fri Aug 23 14:19:06 2002
@@ -51,6 +51,7 @@
#include <linux/buffer_head.h>
#include <linux/root_dev.h>
#include <linux/percpu.h>
+#include <linux/smp_lock.h>
#include <asm/checksum.h>
#if defined(CONFIG_PROC_FS)
@@ -480,6 +481,9 @@
EXPORT_SYMBOL_GPL(idle_cpu);
#if CONFIG_SMP
EXPORT_SYMBOL_GPL(set_cpus_allowed);
+#endif
+#if CONFIG_SMP || CONFIG_PREEMPT
+EXPORT_SYMBOL(kernel_flag);
#endif
EXPORT_SYMBOL(jiffies);
EXPORT_SYMBOL(jiffies_64);
diff -Nru a/kernel/sched.c b/kernel/sched.c
--- a/kernel/sched.c Fri Aug 23 14:19:06 2002
+++ b/kernel/sched.c Fri Aug 23 14:19:06 2002
@@ -1881,7 +1881,6 @@
}
#if CONFIG_SMP
-
/*
* This is how migration works:
*
@@ -2068,6 +2067,20 @@
return 0;
}
+#endif
+
+#if CONFIG_SMP || CONFIG_PREEMPT
+/*
+ * The 'big kernel lock'
+ *
+ * This spinlock is taken and released recursively by lock_kernel()
+ * and unlock_kernel(). It is transparently dropped and reaquired
+ * over schedule(). It is used to protect legacy code that hasn't
+ * been migrated to a proper locking design yet.
+ *
+ * Don't use in new code.
+ */
+spinlock_t kernel_flag __cacheline_aligned_in_smp = SPIN_LOCK_UNLOCKED;
#endif
extern void init_timervecs(void);
===================================================================
This BitKeeper patch contains the following changesets:
1.509
## Wrapped with gzip_uu ##
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`
end
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