Note that at this point there is no CONFIG_RAMSTER_DEBUG
option in the Kconfig. So in effect all of the counters
are nop until that option gets introduced in patch:
ramster/debug: Add CONFIG_RAMSTER_DEBUG Kconfig entry
Acked-by: Dan Magenheimer <dan.magenheimer@xxxxxxxxxx>
Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
---
drivers/staging/zcache/Makefile | 1 +
drivers/staging/zcache/ramster/debug.c | 70 ++++++++++++++++++
drivers/staging/zcache/ramster/debug.h | 78 ++++++++++++++++++++
drivers/staging/zcache/ramster/ramster.c | 115 ++----------------------------
4 files changed, 154 insertions(+), 110 deletions(-)
create mode 100644 drivers/staging/zcache/ramster/debug.c
create mode 100644 drivers/staging/zcache/ramster/debug.h
diff --git a/drivers/staging/zcache/Makefile b/drivers/staging/zcache/Makefile
index 24fd6aa..4956fa0 100644
--- a/drivers/staging/zcache/Makefile
+++ b/drivers/staging/zcache/Makefile
@@ -1,5 +1,6 @@
zcache-y := zcache-main.o tmem.o zbud.o
zcache-$(CONFIG_ZCACHE_DEBUG) += debug.o
+zcache-$(CONFIG_RAMSTER) += ramster/debug.o
zcache-$(CONFIG_RAMSTER) += ramster/ramster.o ramster/r2net.o
zcache-$(CONFIG_RAMSTER) += ramster/nodemanager.o ramster/tcp.o
zcache-$(CONFIG_RAMSTER) += ramster/heartbeat.o ramster/masklog.o
diff --git a/drivers/staging/zcache/ramster/debug.c b/drivers/staging/zcache/ramster/debug.c
new file mode 100644
index 0000000..76861e4
--- /dev/null
+++ b/drivers/staging/zcache/ramster/debug.c
@@ -0,0 +1,70 @@
+#include <linux/atomic.h>
+#include "debug.h"
+
+#ifdef CONFIG_DEBUG_FS
+#include <linux/debugfs.h>
+#define zdfs debugfs_create_size_t
+#define zdfs64 debugfs_create_u64
+
+ssize_t ramster_eph_pages_remoted;
+ssize_t ramster_pers_pages_remoted;
+ssize_t ramster_eph_pages_remote_failed;
+ssize_t ramster_pers_pages_remote_failed;
+ssize_t ramster_remote_eph_pages_succ_get;
+ssize_t ramster_remote_pers_pages_succ_get;
+ssize_t ramster_remote_eph_pages_unsucc_get;
+ssize_t ramster_remote_pers_pages_unsucc_get;
+ssize_t ramster_pers_pages_remote_nomem;
+ssize_t ramster_remote_objects_flushed;
+ssize_t ramster_remote_object_flushes_failed;
+ssize_t ramster_remote_pages_flushed;
+ssize_t ramster_remote_page_flushes_failed;
+
+int __init ramster_debugfs_init(void)
+{
+ struct dentry *root = debugfs_create_dir("ramster", NULL);
+ if (root == NULL)
+ return -ENXIO;
+
+ zdfs("eph_pages_remoted", S_IRUGO, root, &ramster_eph_pages_remoted);
+ zdfs("pers_pages_remoted", S_IRUGO, root, &ramster_pers_pages_remoted);
+ zdfs("eph_pages_remote_failed", S_IRUGO, root,
+ &ramster_eph_pages_remote_failed);
+ zdfs("pers_pages_remote_failed", S_IRUGO, root,
+ &ramster_pers_pages_remote_failed);
+ zdfs("remote_eph_pages_succ_get", S_IRUGO, root,
+ &ramster_remote_eph_pages_succ_get);
+ zdfs("remote_pers_pages_succ_get", S_IRUGO, root,
+ &ramster_remote_pers_pages_succ_get);
+ zdfs("remote_eph_pages_unsucc_get", S_IRUGO, root,
+ &ramster_remote_eph_pages_unsucc_get);
+ zdfs("remote_pers_pages_unsucc_get", S_IRUGO, root,
+ &ramster_remote_pers_pages_unsucc_get);
+ zdfs("pers_pages_remote_nomem", S_IRUGO, root,
+ &ramster_pers_pages_remote_nomem);
+ zdfs("remote_objects_flushed", S_IRUGO, root,
+ &ramster_remote_objects_flushed);
+ zdfs("remote_pages_flushed", S_IRUGO, root,
+ &ramster_remote_pages_flushed);
+ zdfs("remote_object_flushes_failed", S_IRUGO, root,
+ &ramster_remote_object_flushes_failed);
+ zdfs("remote_page_flushes_failed", S_IRUGO, root,
+ &ramster_remote_page_flushes_failed);
+ zdfs("foreign_eph_pages", S_IRUGO, root,
+ &ramster_foreign_eph_pages);
+ zdfs("foreign_eph_pages_max", S_IRUGO, root,
+ &ramster_foreign_eph_pages_max);
+ zdfs("foreign_pers_pages", S_IRUGO, root,
+ &ramster_foreign_pers_pages);
+ zdfs("foreign_pers_pages_max", S_IRUGO, root,
+ &ramster_foreign_pers_pages_max);
+ return 0;
+}
+#undef zdebugfs
+#undef zdfs64
+#else
+static inline int ramster_debugfs_init(void)
+{
+ return 0;
+}
+#endif
diff --git a/drivers/staging/zcache/ramster/debug.h b/drivers/staging/zcache/ramster/debug.h
new file mode 100644
index 0000000..3f608b7
--- /dev/null
+++ b/drivers/staging/zcache/ramster/debug.h
@@ -0,0 +1,78 @@
+#include <linux/bug.h>
+
+#ifdef CONFIG_RAMSTER
+
+extern long ramster_flnodes;
+static atomic_t ramster_flnodes_atomic = ATOMIC_INIT(0);
+static unsigned long ramster_flnodes_max;
+static inline void inc_ramster_flnodes(void)
+{
+ ramster_flnodes = atomic_inc_return(&ramster_flnodes_atomic);
+ if (ramster_flnodes > ramster_flnodes_max)
+ ramster_flnodes_max = ramster_flnodes;
+}
+static inline void dec_ramster_flnodes(void)
+{
+ ramster_flnodes = atomic_dec_return(&ramster_flnodes_atomic);
+}
+extern ssize_t ramster_foreign_eph_pages;
+static atomic_t ramster_foreign_eph_pages_atomic = ATOMIC_INIT(0);
+static ssize_t ramster_foreign_eph_pages_max;
+static inline void inc_ramster_foreign_eph_pages(void)
+{
+ ramster_foreign_eph_pages = atomic_inc_return(
+ &ramster_foreign_eph_pages_atomic);
+ if (ramster_foreign_eph_pages > ramster_foreign_eph_pages_max)
+ ramster_foreign_eph_pages_max = ramster_foreign_eph_pages;
+}
+static inline void dec_ramster_foreign_eph_pages(void)
+{
+ ramster_foreign_eph_pages = atomic_dec_return(
+ &ramster_foreign_eph_pages_atomic);
+}
+extern ssize_t ramster_foreign_pers_pages;
+static atomic_t ramster_foreign_pers_pages_atomic = ATOMIC_INIT(0);
+static ssize_t ramster_foreign_pers_pages_max;
+static inline void inc_ramster_foreign_pers_pages(void)
+{
+ ramster_foreign_pers_pages = atomic_inc_return(
+ &ramster_foreign_pers_pages_atomic);
+ if (ramster_foreign_pers_pages > ramster_foreign_pers_pages_max)
+ ramster_foreign_pers_pages_max = ramster_foreign_pers_pages;
+}
+static inline void dec_ramster_foreign_pers_pages(void)
+{
+ ramster_foreign_pers_pages = atomic_dec_return(
+ &ramster_foreign_pers_pages_atomic);
+}
+
+extern ssize_t ramster_eph_pages_remoted;
+extern ssize_t ramster_pers_pages_remoted;
+extern ssize_t ramster_eph_pages_remote_failed;
+extern ssize_t ramster_pers_pages_remote_failed;
+extern ssize_t ramster_remote_eph_pages_succ_get;
+extern ssize_t ramster_remote_pers_pages_succ_get;
+extern ssize_t ramster_remote_eph_pages_unsucc_get;
+extern ssize_t ramster_remote_pers_pages_unsucc_get;
+extern ssize_t ramster_pers_pages_remote_nomem;
+extern ssize_t ramster_remote_objects_flushed;
+extern ssize_t ramster_remote_object_flushes_failed;
+extern ssize_t ramster_remote_pages_flushed;
+extern ssize_t ramster_remote_page_flushes_failed;
+
+int ramster_debugfs_init(void);
+
+#else
+
+static inline void inc_ramster_flnodes(void) { };
+static inline void dec_ramster_flnodes(void) { };
+static inline void inc_ramster_foreign_eph_pages(void) { };
+static inline void dec_ramster_foreign_eph_pages(void) { };
+static inline void inc_ramster_foreign_pers_pages(void) { };
+static inline void dec_ramster_foreign_pers_pages(void) { };
+
+static inline int ramster_debugfs_init(void)
+{
+ return 0;
+}
+#endif
diff --git a/drivers/staging/zcache/ramster/ramster.c b/drivers/staging/zcache/ramster/ramster.c
index 444189e..1d29f5b 100644
--- a/drivers/staging/zcache/ramster/ramster.c
+++ b/drivers/staging/zcache/ramster/ramster.c
@@ -42,6 +42,7 @@
#include "ramster.h"
#include "ramster_nodemanager.h"
#include "tcp.h"
+#include "debug.h"
#define RAMSTER_TESTING
@@ -63,118 +64,12 @@ static atomic_t ramster_remote_pers_pages = ATOMIC_INIT(0);
static bool ramster_nodes_manual_up[MANUAL_NODES] __read_mostly;
static int ramster_remote_target_nodenum __read_mostly = -1;
-/* these counters are made available via debugfs */
-static long ramster_flnodes;
-static atomic_t ramster_flnodes_atomic = ATOMIC_INIT(0);
-static unsigned long ramster_flnodes_max;
-static inline void inc_ramster_flnodes(void)
-{
- ramster_flnodes = atomic_inc_return(&ramster_flnodes_atomic);
- if (ramster_flnodes > ramster_flnodes_max)
- ramster_flnodes_max = ramster_flnodes;
-}
-static inline void dec_ramster_flnodes(void)
-{
- ramster_flnodes = atomic_dec_return(&ramster_flnodes_atomic);
-}
-static ssize_t ramster_foreign_eph_pages;
-static atomic_t ramster_foreign_eph_pages_atomic = ATOMIC_INIT(0);
-static ssize_t ramster_foreign_eph_pages_max;
-static inline void inc_ramster_foreign_eph_pages(void)
-{
- ramster_foreign_eph_pages = atomic_inc_return(
- &ramster_foreign_eph_pages_atomic);
- if (ramster_foreign_eph_pages > ramster_foreign_eph_pages_max)
- ramster_foreign_eph_pages_max = ramster_foreign_eph_pages;
-}
-static inline void dec_ramster_foreign_eph_pages(void)
-{
- ramster_foreign_eph_pages = atomic_dec_return(
- &ramster_foreign_eph_pages_atomic);
-}
-static ssize_t ramster_foreign_pers_pages;
-static atomic_t ramster_foreign_pers_pages_atomic = ATOMIC_INIT(0);
-static ssize_t ramster_foreign_pers_pages_max;
-static inline void inc_ramster_foreign_pers_pages(void)
-{
- ramster_foreign_pers_pages = atomic_inc_return(
- &ramster_foreign_pers_pages_atomic);
- if (ramster_foreign_pers_pages > ramster_foreign_pers_pages_max)
- ramster_foreign_pers_pages_max = ramster_foreign_pers_pages;
-}
-static inline void dec_ramster_foreign_pers_pages(void)
-{
- ramster_foreign_pers_pages = atomic_dec_return(
- &ramster_foreign_pers_pages_atomic);
-}
-static ssize_t ramster_eph_pages_remoted;
-static ssize_t ramster_pers_pages_remoted;
-static ssize_t ramster_eph_pages_remote_failed;
-static ssize_t ramster_pers_pages_remote_failed;
-static ssize_t ramster_remote_eph_pages_succ_get;
-static ssize_t ramster_remote_pers_pages_succ_get;
-static ssize_t ramster_remote_eph_pages_unsucc_get;
-static ssize_t ramster_remote_pers_pages_unsucc_get;
-static ssize_t ramster_pers_pages_remote_nomem;
-static ssize_t ramster_remote_objects_flushed;
-static ssize_t ramster_remote_object_flushes_failed;
-static ssize_t ramster_remote_pages_flushed;
-static ssize_t ramster_remote_page_flushes_failed;
+/* Used by this code. */
+long ramster_flnodes;
+ssize_t ramster_foreign_eph_pages;
+ssize_t ramster_foreign_pers_pages;
/* FIXME frontswap selfshrinking knobs in debugfs? */
-#ifdef CONFIG_DEBUG_FS
-#include <linux/debugfs.h>
-#define zdfs debugfs_create_size_t
-#define zdfs64 debugfs_create_u64
-static int __init ramster_debugfs_init(void)
-{
- struct dentry *root = debugfs_create_dir("ramster", NULL);
- if (root == NULL)
- return -ENXIO;
-
- zdfs("eph_pages_remoted", S_IRUGO, root, &ramster_eph_pages_remoted);
- zdfs("pers_pages_remoted", S_IRUGO, root, &ramster_pers_pages_remoted);
- zdfs("eph_pages_remote_failed", S_IRUGO, root,
- &ramster_eph_pages_remote_failed);
- zdfs("pers_pages_remote_failed", S_IRUGO, root,
- &ramster_pers_pages_remote_failed);
- zdfs("remote_eph_pages_succ_get", S_IRUGO, root,
- &ramster_remote_eph_pages_succ_get);
- zdfs("remote_pers_pages_succ_get", S_IRUGO, root,
- &ramster_remote_pers_pages_succ_get);
- zdfs("remote_eph_pages_unsucc_get", S_IRUGO, root,
- &ramster_remote_eph_pages_unsucc_get);
- zdfs("remote_pers_pages_unsucc_get", S_IRUGO, root,
- &ramster_remote_pers_pages_unsucc_get);
- zdfs("pers_pages_remote_nomem", S_IRUGO, root,
- &ramster_pers_pages_remote_nomem);
- zdfs("remote_objects_flushed", S_IRUGO, root,
- &ramster_remote_objects_flushed);
- zdfs("remote_pages_flushed", S_IRUGO, root,
- &ramster_remote_pages_flushed);
- zdfs("remote_object_flushes_failed", S_IRUGO, root,
- &ramster_remote_object_flushes_failed);
- zdfs("remote_page_flushes_failed", S_IRUGO, root,
- &ramster_remote_page_flushes_failed);
- zdfs("foreign_eph_pages", S_IRUGO, root,
- &ramster_foreign_eph_pages);
- zdfs("foreign_eph_pages_max", S_IRUGO, root,
- &ramster_foreign_eph_pages_max);
- zdfs("foreign_pers_pages", S_IRUGO, root,
- &ramster_foreign_pers_pages);
- zdfs("foreign_pers_pages_max", S_IRUGO, root,
- &ramster_foreign_pers_pages_max);
- return 0;
-}
-#undef zdebugfs
-#undef zdfs64
-#else
-static inline int ramster_debugfs_init(void)
-{
- return 0;
-}
-#endif
-
static LIST_HEAD(ramster_rem_op_list);
static DEFINE_SPINLOCK(ramster_rem_op_list_lock);
static DEFINE_PER_CPU(struct ramster_preload, ramster_preloads);
--
1.7.10.4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>