jbd2: use module parameters instead of debugfs for jbd_debug

[karo-tx-linux.git] / fs / jbd2 / journal.c

diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index 4ba2e81e35ac8da784f7172612519a01bb6cb8af..ed10991ab0060c5fac4ed580301591f6996965ca 100644 (file)
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -35,7 +35,6 @@
 #include <linux/kthread.h>
 #include <linux/poison.h>
 #include <linux/proc_fs.h>
-#include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/math64.h>
 #include <linux/hash.h>
@@ -51,6 +50,14 @@
 #include <asm/uaccess.h>
 #include <asm/page.h>
 
+#ifdef CONFIG_JBD2_DEBUG
+ushort jbd2_journal_enable_debug __read_mostly;
+EXPORT_SYMBOL(jbd2_journal_enable_debug);
+
+module_param_named(jbd2_debug, jbd2_journal_enable_debug, ushort, 0644);
+MODULE_PARM_DESC(jbd2_debug, "Debugging level for jbd2");
+#endif
+
 EXPORT_SYMBOL(jbd2_journal_extend);
 EXPORT_SYMBOL(jbd2_journal_stop);
 EXPORT_SYMBOL(jbd2_journal_lock_updates);
@@ -2495,45 +2502,6 @@ restart:
        spin_unlock(&journal->j_list_lock);
 }
 
-/*
- * debugfs tunables
- */
-#ifdef CONFIG_JBD2_DEBUG
-u8 jbd2_journal_enable_debug __read_mostly;
-EXPORT_SYMBOL(jbd2_journal_enable_debug);
-
-#define JBD2_DEBUG_NAME "jbd2-debug"
-
-static struct dentry *jbd2_debugfs_dir;
-static struct dentry *jbd2_debug;
-
-static void __init jbd2_create_debugfs_entry(void)
-{
-       jbd2_debugfs_dir = debugfs_create_dir("jbd2", NULL);
-       if (jbd2_debugfs_dir)
-               jbd2_debug = debugfs_create_u8(JBD2_DEBUG_NAME,
-                                              S_IRUGO | S_IWUSR,
-                                              jbd2_debugfs_dir,
-                                              &jbd2_journal_enable_debug);
-}
-
-static void __exit jbd2_remove_debugfs_entry(void)
-{
-       debugfs_remove(jbd2_debug);
-       debugfs_remove(jbd2_debugfs_dir);
-}
-
-#else
-
-static void __init jbd2_create_debugfs_entry(void)
-{
-}
-
-static void __exit jbd2_remove_debugfs_entry(void)
-{
-}
-
-#endif
 
 #ifdef CONFIG_PROC_FS
 
@@ -2619,7 +2587,6 @@ static int __init journal_init(void)
 
        ret = journal_init_caches();
        if (ret == 0) {
-               jbd2_create_debugfs_entry();
                jbd2_create_jbd_stats_proc_entry();
        } else {
                jbd2_journal_destroy_caches();
@@ -2634,7 +2601,6 @@ static void __exit journal_exit(void)
        if (n)
                printk(KERN_EMERG "JBD2: leaked %d journal_heads!\n", n);
 #endif
-       jbd2_remove_debugfs_entry();
        jbd2_remove_jbd_stats_proc_entry();
        jbd2_journal_destroy_caches();
 }