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btrfs: move leak debug code to functions

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Clean up the leak debugging in extent_io.c by moving
the debug code into functions.  This also removes the
list_heads used for debugging from the extent_buffer
and extent_state structures when debug is not enabled.

Since we need a global debug config to do that last
part, implement CONFIG_BTRFS_DEBUG to accommodate.

Thanks to Dave Sterba for the Kconfig bit.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Eric Sandeen
2013-04-22 16:12:31 +00:00
committed by Josef Bacik
parent ace68bac61
commit 6d49ba1b47
3 changed files with 72 additions and 56 deletions
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6
fs/btrfs/extent_io.h
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@@ -116,7 +116,9 @@ struct extent_state {
/* for use by the FS */
u64 private;
#ifdef CONFIG_BTRFS_DEBUG
struct list_head leak_list;
#endif
};
#define INLINE_EXTENT_BUFFER_PAGES 16
@@ -132,7 +134,6 @@ struct extent_buffer {
atomic_t refs;
atomic_t io_pages;
int read_mirror;
struct list_head leak_list;
struct rcu_head rcu_head;
pid_t lock_owner;
@@ -159,6 +160,9 @@ struct extent_buffer {
wait_queue_head_t read_lock_wq;
wait_queue_head_t lock_wq;
struct page *pages[INLINE_EXTENT_BUFFER_PAGES];
#ifdef CONFIG_BTRFS_DEBUG
struct list_head leak_list;
#endif
};
static inline void extent_set_compress_type(unsigned long *bio_flags,