Commit 6f38c74f authored by Jose R. Santos's avatar Jose R. Santos Committed by Theodore Ts'o

JBD2: debug code cleanup.

Mostly stolen from akpm's JBD cleanup patch.

- use `#ifdef foo' instead of `#if defined(foo)'

- Make journal_enable_debug __read_mostly just for the heck of it

- Make jbd_debugfs_dir and jbd_debug static

- debugfs_remove(NULL) is legal: remove unneeded tests

- remove unnecessary empty loops
Signed-off-by: default avatarJose R. Santos <jrs@us.ibm.com>
Cc: <linux-ext4@vger.kernel.org>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent a7fa2baf
......@@ -1864,16 +1864,14 @@ void jbd2_journal_put_journal_head(struct journal_head *jh)
/*
* debugfs tunables
*/
#if defined(CONFIG_JBD2_DEBUG)
u8 jbd2_journal_enable_debug;
#ifdef CONFIG_JBD2_DEBUG
u8 jbd2_journal_enable_debug __read_mostly;
EXPORT_SYMBOL(jbd2_journal_enable_debug);
#endif
#if defined(CONFIG_JBD2_DEBUG) && defined(CONFIG_DEBUG_FS)
#define JBD2_DEBUG_NAME "jbd2-debug"
struct dentry *jbd2_debugfs_dir, *jbd2_debug;
static struct dentry *jbd2_debugfs_dir;
static struct dentry *jbd2_debug;
static void __init jbd2_create_debugfs_entry(void)
{
......@@ -1886,9 +1884,7 @@ static void __init jbd2_create_debugfs_entry(void)
static void __exit jbd2_remove_debugfs_entry(void)
{
if (jbd2_debug)
debugfs_remove(jbd2_debug);
if (jbd2_debugfs_dir)
debugfs_remove(jbd2_debugfs_dir);
}
......@@ -1896,14 +1892,10 @@ static void __exit jbd2_remove_debugfs_entry(void)
static void __init jbd2_create_debugfs_entry(void)
{
do {
} while (0);
}
static void __exit jbd2_remove_debugfs_entry(void)
{
do {
} while (0);
}
#endif
......
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