Use an array to initialize/use debugfs attributes, it makes them
neater as zcache/debug.c does.
Signed-off-by: Wanpeng Li <liwanp@xxxxxxxxxxxxxxxxxx>
---
drivers/staging/zcache/ramster/debug.c | 68 +++++++++++++++-----------------
1 file changed, 32 insertions(+), 36 deletions(-)
diff --git a/drivers/staging/zcache/ramster/debug.c b/drivers/staging/zcache/ramster/debug.c
index 76861e4..bf34133 100644
--- a/drivers/staging/zcache/ramster/debug.c
+++ b/drivers/staging/zcache/ramster/debug.c
@@ -3,8 +3,6 @@
#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;
@@ -20,48 +18,46 @@ ssize_t ramster_remote_object_flushes_failed;
ssize_t ramster_remote_pages_flushed;
ssize_t ramster_remote_page_flushes_failed;
+#define ATTR(x) { .name = #x, .val = &ramster_##x, }
+static struct debug_entry {
+ const char *name;
+ ssize_t *val;
+} attrs[] = {
+ ATTR(eph_pages_remoted),
+ ATTR(pers_pages_remoted),
+ ATTR(eph_pages_remote_failed),
+ ATTR(pers_pages_remote_failed),
+ ATTR(remote_eph_pages_succ_get),
+ ATTR(remote_pers_pages_succ_get),
+ ATTR(remote_eph_pages_unsucc_get),
+ ATTR(remote_pers_pages_unsucc_get),
+ ATTR(pers_pages_remote_nomem),
+ ATTR(remote_objects_flushed),
+ ATTR(remote_pages_flushed),
+ ATTR(remote_object_flushes_failed),
+ ATTR(remote_page_flushes_failed),
+ ATTR(foreign_eph_pages),
+ ATTR(foreign_eph_pages_max),
+ ATTR(foreign_pers_pages),
+ ATTR(foreign_pers_pages_max),
+};
+#undef ATTR
+
int __init ramster_debugfs_init(void)
{
+ int i;
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);
+ for (i = 0; i < ARRAY_SIZE(attrs); i++)
+ if (!debugfs_create_size_t(attrs[i].name,
+ S_IRUGO, root, attrs[i].val))
+ goto out;
return 0;
+out:
+ return -ENODEV;
}
-#undef zdebugfs
-#undef zdfs64
#else
static inline int ramster_debugfs_init(void)
{
--
1.7.10.4
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