On Thu, 15 Sep 2011 14:34:46 -0700
Dan Magenheimer [off-list ref] wrote:

From: Dan Magenheimer <redacted>
Subject: [PATCH V10 5/6] mm: cleancache: update to match akpm frontswap feedback

	err = sysfs_create_group(mm_kobj, &cleancache_attr_group);

-#endif /* CONFIG_SYSFS */
+#ifdef CONFIG_DEBUG_FS
+	struct dentry *root = debugfs_create_dir("cleancache", NULL);
+	if (root == NULL)
+		return -ENXIO;
+	debugfs_create_u64("succ_gets", S_IRUGO, root, &cleancache_succ_gets);
+	debugfs_create_u64("failed_gets", S_IRUGO,
+				root, &cleancache_failed_gets);
+	debugfs_create_u64("puts", S_IRUGO, root, &cleancache_puts);
+	debugfs_create_u64("invalidates", S_IRUGO,
+				root, &cleancache_invalidates);
+#endif

No exisiting userlands are affected by this change of flush->invalidates ?

Thanks,
-Kame

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