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kmemtrace, rcu: fix rcu_tree_trace.c data structure dependencies

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Impact: cleanup

We want to remove rcutree internals from the public rcutree.h file for
upcoming kmemtrace changes - but kernel/rcutree_trace.c depends on them.

Introduce kernel/rcutree.h for internal definitions. (Probably all
the other data types from include/linux/rcutree.h could be
moved here too - except rcu_data.)

Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: paulmck@linux.vnet.ibm.com
LKML-Reference: <1237898630.25315.83.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2009-03-25 16:42:24 +01:00
parent b1f77b0581
commit 6258c4fb59
3 changed files with 16 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
kernel/rcutree.c
View File

@@ -72,11 +72,11 @@ EXPORT_SYMBOL_GPL(rcu_lock_map);
.n_force_qs_ngp = 0, \ .n_force_qs_ngp = 0, \
} }
static struct rcu_state rcu_state = RCU_STATE_INITIALIZER(rcu_state); struct rcu_state rcu_state = RCU_STATE_INITIALIZER(rcu_state);
static DEFINE_PER_CPU(struct rcu_data, rcu_data); DEFINE_PER_CPU(struct rcu_data, rcu_data);
static struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state); struct rcu_state rcu_bh_state = RCU_STATE_INITIALIZER(rcu_bh_state);
static DEFINE_PER_CPU(struct rcu_data, rcu_bh_data); DEFINE_PER_CPU(struct rcu_data, rcu_bh_data);
/* /*
* Increment the quiescent state counter. * Increment the quiescent state counter.

10
kernel/rcutree.h Normal file
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@@ -0,0 +1,10 @@
/*
* RCU implementation internal declarations:
*/
extern struct rcu_state rcu_state;
DECLARE_PER_CPU(struct rcu_data, rcu_data);
extern struct rcu_state rcu_bh_state;
DECLARE_PER_CPU(struct rcu_data, rcu_bh_data);

2
kernel/rcutree_trace.c
View File

@@ -43,6 +43,8 @@
#include <linux/debugfs.h> #include <linux/debugfs.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
#include "rcutree.h"
static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp) static void print_one_rcu_data(struct seq_file *m, struct rcu_data *rdp)
{ {
if (!rdp->beenonline) if (!rdp->beenonline)