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Diffstat (limited to 'fs/ext4/mballoc.h')
-rw-r--r--fs/ext4/mballoc.h32
1 files changed, 19 insertions, 13 deletions
diff --git a/fs/ext4/mballoc.h b/fs/ext4/mballoc.h
index c7c9906c2a75..b5dff1fff1e5 100644
--- a/fs/ext4/mballoc.h
+++ b/fs/ext4/mballoc.h
@@ -18,6 +18,8 @@
#include <linux/pagemap.h>
#include <linux/seq_file.h>
#include <linux/version.h>
+#include <linux/blkdev.h>
+#include <linux/marker.h>
#include "ext4_jbd2.h"
#include "ext4.h"
#include "group.h"
@@ -98,23 +100,29 @@
static struct kmem_cache *ext4_pspace_cachep;
static struct kmem_cache *ext4_ac_cachep;
+static struct kmem_cache *ext4_free_ext_cachep;
-#ifdef EXT4_BB_MAX_BLOCKS
-#undef EXT4_BB_MAX_BLOCKS
-#endif
-#define EXT4_BB_MAX_BLOCKS 30
+struct ext4_free_data {
+ /* this links the free block information from group_info */
+ struct rb_node node;
-struct ext4_free_metadata {
- ext4_group_t group;
- unsigned short num;
- ext4_grpblk_t blocks[EXT4_BB_MAX_BLOCKS];
+ /* this links the free block information from ext4_sb_info */
struct list_head list;
+
+ /* group which free block extent belongs */
+ ext4_group_t group;
+
+ /* free block extent */
+ ext4_grpblk_t start_blk;
+ ext4_grpblk_t count;
+
+ /* transaction which freed this extent */
+ tid_t t_tid;
};
struct ext4_group_info {
unsigned long bb_state;
- unsigned long bb_tid;
- struct ext4_free_metadata *bb_md_cur;
+ struct rb_root bb_free_root;
unsigned short bb_first_free;
unsigned short bb_free;
unsigned short bb_fragments;
@@ -257,13 +265,10 @@ static void ext4_mb_store_history(struct ext4_allocation_context *ac);
#define in_range(b, first, len) ((b) >= (first) && (b) <= (first) + (len) - 1)
-static struct proc_dir_entry *proc_root_ext4;
struct buffer_head *read_block_bitmap(struct super_block *, ext4_group_t);
static void ext4_mb_generate_from_pa(struct super_block *sb, void *bitmap,
ext4_group_t group);
-static void ext4_mb_poll_new_transaction(struct super_block *, handle_t *);
-static void ext4_mb_free_committed_blocks(struct super_block *);
static void ext4_mb_return_to_preallocation(struct inode *inode,
struct ext4_buddy *e4b, sector_t block,
int count);
@@ -271,6 +276,7 @@ static void ext4_mb_put_pa(struct ext4_allocation_context *,
struct super_block *, struct ext4_prealloc_space *pa);
static int ext4_mb_init_per_dev_proc(struct super_block *sb);
static int ext4_mb_destroy_per_dev_proc(struct super_block *sb);
+static void release_blocks_on_commit(journal_t *journal, transaction_t *txn);
static inline void ext4_lock_group(struct super_block *sb, ext4_group_t group)