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authorSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
committerSamuel Thibault <samuel.thibault@ens-lyon.org>2013-07-27 22:07:53 +0000
commit4fbe7358c7747a9165f776eb19addbb9baf7def2 (patch)
treebc7076b4f6d10c2cc2942539bb666e50f0b66954 /libdde_linux26/include/linux/percpu_counter.h
parent21adb5284111190057db245cfc2b54091920c373 (diff)
rename libdde_linux26 into libdde-linux26 to make dpkg-source happy
Diffstat (limited to 'libdde_linux26/include/linux/percpu_counter.h')
-rw-r--r--libdde_linux26/include/linux/percpu_counter.h149
1 files changed, 0 insertions, 149 deletions
diff --git a/libdde_linux26/include/linux/percpu_counter.h b/libdde_linux26/include/linux/percpu_counter.h
deleted file mode 100644
index c1f9482f..00000000
--- a/libdde_linux26/include/linux/percpu_counter.h
+++ /dev/null
@@ -1,149 +0,0 @@
-#ifndef _LINUX_PERCPU_COUNTER_H
-#define _LINUX_PERCPU_COUNTER_H
-/*
- * A simple "approximate counter" for use in ext2 and ext3 superblocks.
- *
- * WARNING: these things are HUGE. 4 kbytes per counter on 32-way P4.
- */
-
-#include <linux/spinlock.h>
-#include <linux/smp.h>
-#include <linux/list.h>
-#include <linux/threads.h>
-#include <linux/percpu.h>
-#include <linux/types.h>
-
-#if defined(CONFIG_SMP) && !defined(DDE_LINUX)
-
-struct percpu_counter {
- spinlock_t lock;
- s64 count;
-#ifdef CONFIG_HOTPLUG_CPU
- struct list_head list; /* All percpu_counters are on a list */
-#endif
- s32 *counters;
-};
-
-extern int percpu_counter_batch;
-
-int __percpu_counter_init(struct percpu_counter *fbc, s64 amount,
- struct lock_class_key *key);
-
-#define percpu_counter_init(fbc, value) \
- ({ \
- static struct lock_class_key __key; \
- \
- __percpu_counter_init(fbc, value, &__key); \
- })
-
-void percpu_counter_destroy(struct percpu_counter *fbc);
-void percpu_counter_set(struct percpu_counter *fbc, s64 amount);
-void __percpu_counter_add(struct percpu_counter *fbc, s64 amount, s32 batch);
-s64 __percpu_counter_sum(struct percpu_counter *fbc);
-
-static inline void percpu_counter_add(struct percpu_counter *fbc, s64 amount)
-{
- __percpu_counter_add(fbc, amount, percpu_counter_batch);
-}
-
-static inline s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
-{
- s64 ret = __percpu_counter_sum(fbc);
- return ret < 0 ? 0 : ret;
-}
-
-static inline s64 percpu_counter_sum(struct percpu_counter *fbc)
-{
- return __percpu_counter_sum(fbc);
-}
-
-static inline s64 percpu_counter_read(struct percpu_counter *fbc)
-{
- return fbc->count;
-}
-
-/*
- * It is possible for the percpu_counter_read() to return a small negative
- * number for some counter which should never be negative.
- *
- */
-static inline s64 percpu_counter_read_positive(struct percpu_counter *fbc)
-{
- s64 ret = fbc->count;
-
- barrier(); /* Prevent reloads of fbc->count */
- if (ret >= 0)
- return ret;
- return 1;
-}
-
-#else
-
-struct percpu_counter {
- s64 count;
-};
-
-static inline int percpu_counter_init(struct percpu_counter *fbc, s64 amount)
-{
- fbc->count = amount;
- return 0;
-}
-
-static inline void percpu_counter_destroy(struct percpu_counter *fbc)
-{
-}
-
-static inline void percpu_counter_set(struct percpu_counter *fbc, s64 amount)
-{
- fbc->count = amount;
-}
-
-#define __percpu_counter_add(fbc, amount, batch) \
- percpu_counter_add(fbc, amount)
-
-static inline void
-percpu_counter_add(struct percpu_counter *fbc, s64 amount)
-{
- preempt_disable();
- fbc->count += amount;
- preempt_enable();
-}
-
-static inline s64 percpu_counter_read(struct percpu_counter *fbc)
-{
- return fbc->count;
-}
-
-static inline s64 percpu_counter_read_positive(struct percpu_counter *fbc)
-{
- return fbc->count;
-}
-
-static inline s64 percpu_counter_sum_positive(struct percpu_counter *fbc)
-{
- return percpu_counter_read_positive(fbc);
-}
-
-static inline s64 percpu_counter_sum(struct percpu_counter *fbc)
-{
- return percpu_counter_read(fbc);
-}
-
-#endif /* CONFIG_SMP */
-
-static inline void percpu_counter_inc(struct percpu_counter *fbc)
-{
- percpu_counter_add(fbc, 1);
-}
-
-static inline void percpu_counter_dec(struct percpu_counter *fbc)
-{
- percpu_counter_add(fbc, -1);
-}
-
-static inline void percpu_counter_sub(struct percpu_counter *fbc, s64 amount)
-{
- percpu_counter_add(fbc, -amount);
-}
-
-#endif /* _LINUX_PERCPU_COUNTER_H */