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authorLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 17:21:00 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-03-16 17:21:00 -0700
commitf74b9444192c60603020c61d7915b72893137edc (patch)
tree8b1d16d373234038c2b045c9ceb3c33b93059e8a /include
parent7a6362800cb7d1d618a697a650c7aaed3eb39320 (diff)
parent4ba8216cd90560bc402f52076f64d8546e8aefcb (diff)
Merge branch 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl
* 'config' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/bkl: BKL: That's all, folks fs/locks.c: Remove stale FIXME left over from BKL conversion ipx: remove the BKL appletalk: remove the BKL x25: remove the BKL ufs: remove the BKL hpfs: remove the BKL drivers: remove extraneous includes of smp_lock.h tracing: don't trace the BKL adfs: remove the big kernel lock
Diffstat (limited to 'include')
-rw-r--r--include/linux/hardirq.h9
-rw-r--r--include/linux/smp_lock.h65
-rw-r--r--include/trace/events/bkl.h61
3 files changed, 1 insertions, 134 deletions
diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h
index 32f9fd6619b4..ba362171e8ae 100644
--- a/include/linux/hardirq.h
+++ b/include/linux/hardirq.h
@@ -93,13 +93,6 @@
*/
#define in_nmi() (preempt_count() & NMI_MASK)
-#if defined(CONFIG_PREEMPT) && defined(CONFIG_BKL)
-# include <linux/sched.h>
-# define PREEMPT_INATOMIC_BASE (current->lock_depth >= 0)
-#else
-# define PREEMPT_INATOMIC_BASE 0
-#endif
-
#if defined(CONFIG_PREEMPT)
# define PREEMPT_CHECK_OFFSET 1
#else
@@ -113,7 +106,7 @@
* used in the general case to determine whether sleeping is possible.
* Do not use in_atomic() in driver code.
*/
-#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_INATOMIC_BASE)
+#define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0)
/*
* Check whether we were atomic before we did preempt_disable():
diff --git a/include/linux/smp_lock.h b/include/linux/smp_lock.h
deleted file mode 100644
index 3a1988202731..000000000000
--- a/include/linux/smp_lock.h
+++ /dev/null
@@ -1,65 +0,0 @@
-#ifndef __LINUX_SMPLOCK_H
-#define __LINUX_SMPLOCK_H
-
-#ifdef CONFIG_LOCK_KERNEL
-#include <linux/sched.h>
-
-extern int __lockfunc __reacquire_kernel_lock(void);
-extern void __lockfunc __release_kernel_lock(void);
-
-/*
- * Release/re-acquire global kernel lock for the scheduler
- */
-#define release_kernel_lock(tsk) do { \
- if (unlikely((tsk)->lock_depth >= 0)) \
- __release_kernel_lock(); \
-} while (0)
-
-static inline int reacquire_kernel_lock(struct task_struct *task)
-{
- if (unlikely(task->lock_depth >= 0))
- return __reacquire_kernel_lock();
- return 0;
-}
-
-extern void __lockfunc
-_lock_kernel(const char *func, const char *file, int line)
-__acquires(kernel_lock);
-
-extern void __lockfunc
-_unlock_kernel(const char *func, const char *file, int line)
-__releases(kernel_lock);
-
-#define lock_kernel() do { \
- _lock_kernel(__func__, __FILE__, __LINE__); \
-} while (0)
-
-#define unlock_kernel() do { \
- _unlock_kernel(__func__, __FILE__, __LINE__); \
-} while (0)
-
-/*
- * Various legacy drivers don't really need the BKL in a specific
- * function, but they *do* need to know that the BKL became available.
- * This function just avoids wrapping a bunch of lock/unlock pairs
- * around code which doesn't really need it.
- */
-static inline void cycle_kernel_lock(void)
-{
- lock_kernel();
- unlock_kernel();
-}
-
-#else
-
-#ifdef CONFIG_BKL /* provoke build bug if not set */
-#define lock_kernel()
-#define unlock_kernel()
-#define cycle_kernel_lock() do { } while(0)
-#endif /* CONFIG_BKL */
-
-#define release_kernel_lock(task) do { } while(0)
-#define reacquire_kernel_lock(task) 0
-
-#endif /* CONFIG_LOCK_KERNEL */
-#endif /* __LINUX_SMPLOCK_H */
diff --git a/include/trace/events/bkl.h b/include/trace/events/bkl.h
deleted file mode 100644
index 1af72dc24278..000000000000
--- a/include/trace/events/bkl.h
+++ /dev/null
@@ -1,61 +0,0 @@
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM bkl
-
-#if !defined(_TRACE_BKL_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_BKL_H
-
-#include <linux/tracepoint.h>
-
-TRACE_EVENT(lock_kernel,
-
- TP_PROTO(const char *func, const char *file, int line),
-
- TP_ARGS(func, file, line),
-
- TP_STRUCT__entry(
- __field( int, depth )
- __field_ext( const char *, func, FILTER_PTR_STRING )
- __field_ext( const char *, file, FILTER_PTR_STRING )
- __field( int, line )
- ),
-
- TP_fast_assign(
- /* We want to record the lock_depth after lock is acquired */
- __entry->depth = current->lock_depth + 1;
- __entry->func = func;
- __entry->file = file;
- __entry->line = line;
- ),
-
- TP_printk("depth=%d file:line=%s:%d func=%s()", __entry->depth,
- __entry->file, __entry->line, __entry->func)
-);
-
-TRACE_EVENT(unlock_kernel,
-
- TP_PROTO(const char *func, const char *file, int line),
-
- TP_ARGS(func, file, line),
-
- TP_STRUCT__entry(
- __field(int, depth )
- __field(const char *, func )
- __field(const char *, file )
- __field(int, line )
- ),
-
- TP_fast_assign(
- __entry->depth = current->lock_depth;
- __entry->func = func;
- __entry->file = file;
- __entry->line = line;
- ),
-
- TP_printk("depth=%d file:line=%s:%d func=%s()", __entry->depth,
- __entry->file, __entry->line, __entry->func)
-);
-
-#endif /* _TRACE_BKL_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>