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authorDavid Howells <dhowells@redhat.com>2009-12-01 15:36:11 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-01 08:20:31 -0800
commitf13a48bd798a159291ca583b95453171b88b7448 (patch)
treea644293386e30ed5ab297e5943e57658e1d11e6a /kernel
parentdf87f8c06c7f562ef9d93b9d674eebf2ffb96f6a (diff)
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SLOW_WORK: Move slow_work's proc file to debugfs
Move slow_work's debugging proc file to debugfs. Signed-off-by: David Howells <dhowells@redhat.com> Requested-and-acked-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/Makefile2
-rw-r--r--kernel/slow-work-debugfs.c (renamed from kernel/slow-work-proc.c)4
-rw-r--r--kernel/slow-work.c18
-rw-r--r--kernel/slow-work.h6
4 files changed, 18 insertions, 12 deletions
diff --git a/kernel/Makefile b/kernel/Makefile
index 776ffed1556..d7c13d249b2 100644
--- a/kernel/Makefile
+++ b/kernel/Makefile
@@ -94,7 +94,7 @@ obj-$(CONFIG_X86_DS) += trace/
obj-$(CONFIG_RING_BUFFER) += trace/
obj-$(CONFIG_SMP) += sched_cpupri.o
obj-$(CONFIG_SLOW_WORK) += slow-work.o
-obj-$(CONFIG_SLOW_WORK_PROC) += slow-work-proc.o
+obj-$(CONFIG_SLOW_WORK_DEBUG) += slow-work-debugfs.o
obj-$(CONFIG_PERF_EVENTS) += perf_event.o
ifneq ($(CONFIG_SCHED_OMIT_FRAME_POINTER),y)
diff --git a/kernel/slow-work-proc.c b/kernel/slow-work-debugfs.c
index 3988032571f..e45c4364529 100644
--- a/kernel/slow-work-proc.c
+++ b/kernel/slow-work-debugfs.c
@@ -57,7 +57,7 @@ static void slow_work_print_mark(struct seq_file *m, struct slow_work *work)
}
/*
- * Describe a slow work item for /proc
+ * Describe a slow work item for debugfs
*/
static int slow_work_runqueue_show(struct seq_file *m, void *v)
{
@@ -211,7 +211,7 @@ static const struct seq_operations slow_work_runqueue_ops = {
};
/*
- * open "/proc/slow_work_rq" to list queue contents
+ * open "/sys/kernel/debug/slow_work/runqueue" to list queue contents
*/
static int slow_work_runqueue_open(struct inode *inode, struct file *file)
{
diff --git a/kernel/slow-work.c b/kernel/slow-work.c
index b5c17f15f9d..00889bd3c59 100644
--- a/kernel/slow-work.c
+++ b/kernel/slow-work.c
@@ -16,7 +16,7 @@
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/wait.h>
-#include <linux/proc_fs.h>
+#include <linux/debugfs.h>
#include "slow-work.h"
static void slow_work_cull_timeout(unsigned long);
@@ -138,7 +138,7 @@ static void slow_work_clear_thread_processing(int id) {}
/*
* Data for tracking currently executing items for indication through /proc
*/
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
struct slow_work *slow_work_execs[SLOW_WORK_THREAD_LIMIT];
pid_t slow_work_pids[SLOW_WORK_THREAD_LIMIT];
DEFINE_RWLOCK(slow_work_execs_lock);
@@ -823,7 +823,7 @@ static void slow_work_new_thread_execute(struct slow_work *work)
static const struct slow_work_ops slow_work_new_thread_ops = {
.owner = THIS_MODULE,
.execute = slow_work_new_thread_execute,
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
.desc = slow_work_new_thread_desc,
#endif
};
@@ -1055,9 +1055,15 @@ static int __init init_slow_work(void)
if (slow_work_max_max_threads < nr_cpus * 2)
slow_work_max_max_threads = nr_cpus * 2;
#endif
-#ifdef CONFIG_SLOW_WORK_PROC
- proc_create("slow_work_rq", S_IFREG | 0400, NULL,
- &slow_work_runqueue_fops);
+#ifdef CONFIG_SLOW_WORK_DEBUG
+ {
+ struct dentry *dbdir;
+
+ dbdir = debugfs_create_dir("slow_work", NULL);
+ if (dbdir && !IS_ERR(dbdir))
+ debugfs_create_file("runqueue", S_IFREG | 0400, dbdir,
+ NULL, &slow_work_runqueue_fops);
+ }
#endif
return 0;
}
diff --git a/kernel/slow-work.h b/kernel/slow-work.h
index 3c2f007f3ad..321f3c59d73 100644
--- a/kernel/slow-work.h
+++ b/kernel/slow-work.h
@@ -19,7 +19,7 @@
/*
* slow-work.c
*/
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
extern struct slow_work *slow_work_execs[];
extern pid_t slow_work_pids[];
extern rwlock_t slow_work_execs_lock;
@@ -30,9 +30,9 @@ extern struct list_head vslow_work_queue;
extern spinlock_t slow_work_queue_lock;
/*
- * slow-work-proc.c
+ * slow-work-debugfs.c
*/
-#ifdef CONFIG_SLOW_WORK_PROC
+#ifdef CONFIG_SLOW_WORK_DEBUG
extern const struct file_operations slow_work_runqueue_fops;
extern void slow_work_new_thread_desc(struct slow_work *, struct seq_file *);