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Btrfs: disable leak debugging checks in extent_io.c

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extent_io.c has debugging code to report and free leaked extent_state
and extent_buffer objects at rmmod time.  This helps track down
leaks and it saves you from rebooting just to properly remove the
kmem_cache object.

But, the code runs under a fairly expensive spinlock and the checks to
see if it is currently enabled are not entirely consistent.  Some use
#ifdef and some #if.

This changes everything to #if and disables the leak checking.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2009-02-04 09:24:05 -05:00
parent b7a9f29fcf
commit 3935127c50
1 changed files with 8 additions and 8 deletions
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16
fs/btrfs/extent_io.c
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@ -30,7 +30,7 @@ static LIST_HEAD(buffers);
static LIST_HEAD(states);
#define LEAK_DEBUG 0
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
static DEFINE_SPINLOCK(leak_lock);
#endif
@ -119,7 +119,7 @@ void extent_io_tree_init(struct extent_io_tree *tree,
static struct extent_state *alloc_extent_state(gfp_t mask)
{
struct extent_state *state;
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
unsigned long flags;
#endif
@ -129,7 +129,7 @@ static struct extent_state *alloc_extent_state(gfp_t mask)
state->state = 0;
state->private = 0;
state->tree = NULL;
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
spin_lock_irqsave(&leak_lock, flags);
list_add(&state->leak_list, &states);
spin_unlock_irqrestore(&leak_lock, flags);
@ -144,11 +144,11 @@ static void free_extent_state(struct extent_state *state)
if (!state)
return;
if (atomic_dec_and_test(&state->refs)) {
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
unsigned long flags;
#endif
WARN_ON(state->tree);
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
spin_lock_irqsave(&leak_lock, flags);
list_del(&state->leak_list);
spin_unlock_irqrestore(&leak_lock, flags);
@ -2983,7 +2983,7 @@ static struct extent_buffer *__alloc_extent_buffer(struct extent_io_tree *tree,
gfp_t mask)
{
struct extent_buffer *eb = NULL;
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
unsigned long flags;
#endif
@ -2991,7 +2991,7 @@ static struct extent_buffer *__alloc_extent_buffer(struct extent_io_tree *tree,
eb->start = start;
eb->len = len;
mutex_init(&eb->mutex);
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
spin_lock_irqsave(&leak_lock, flags);
list_add(&eb->leak_list, &buffers);
spin_unlock_irqrestore(&leak_lock, flags);
@ -3003,7 +3003,7 @@ static struct extent_buffer *__alloc_extent_buffer(struct extent_io_tree *tree,
static void __free_extent_buffer(struct extent_buffer *eb)
{
#ifdef LEAK_DEBUG
#if LEAK_DEBUG
unsigned long flags;
spin_lock_irqsave(&leak_lock, flags);
list_del(&eb->leak_list);