struct btrfs_delayed_ref_root;
struct btrfs_space_info;
struct btrfs_block_group;
-extern struct kmem_cache *btrfs_free_space_cachep;
-extern struct kmem_cache *btrfs_free_space_bitmap_cachep;
struct btrfs_ordered_sum;
struct btrfs_ref;
struct btrfs_bio;
#define MAX_CACHE_BYTES_PER_GIG SZ_64K
#define FORCE_EXTENT_THRESHOLD SZ_1M
+static struct kmem_cache *btrfs_free_space_cachep;
+static struct kmem_cache *btrfs_free_space_bitmap_cachep;
+
struct btrfs_trim_range {
u64 start;
u64 bytes;
return ret;
}
+int __init btrfs_free_space_init(void)
+{
+ btrfs_free_space_cachep = kmem_cache_create("btrfs_free_space",
+ sizeof(struct btrfs_free_space), 0,
+ SLAB_MEM_SPREAD, NULL);
+ if (!btrfs_free_space_cachep)
+ return -ENOMEM;
+
+ btrfs_free_space_bitmap_cachep = kmem_cache_create("btrfs_free_space_bitmap",
+ PAGE_SIZE, PAGE_SIZE,
+ SLAB_MEM_SPREAD, NULL);
+ if (!btrfs_free_space_bitmap_cachep) {
+ kmem_cache_destroy(btrfs_free_space_cachep);
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+
+void __cold btrfs_free_space_exit(void)
+{
+ kmem_cache_destroy(btrfs_free_space_cachep);
+ kmem_cache_destroy(btrfs_free_space_bitmap_cachep);
+}
+
#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
/*
* Use this if you need to make a bitmap or extent entry specifically, it
int bitmaps;
};
+int __init btrfs_free_space_init(void);
+void __cold btrfs_free_space_exit(void);
struct inode *lookup_free_space_inode(struct btrfs_block_group *block_group,
struct btrfs_path *path);
int create_free_space_inode(struct btrfs_trans_handle *trans,
static const struct file_operations btrfs_dir_file_operations;
static struct kmem_cache *btrfs_inode_cachep;
-struct kmem_cache *btrfs_free_space_cachep;
-struct kmem_cache *btrfs_free_space_bitmap_cachep;
static int btrfs_setsize(struct inode *inode, struct iattr *attr);
static int btrfs_truncate(struct inode *inode, bool skip_writeback);
rcu_barrier();
bioset_exit(&btrfs_dio_bioset);
kmem_cache_destroy(btrfs_inode_cachep);
- kmem_cache_destroy(btrfs_free_space_cachep);
- kmem_cache_destroy(btrfs_free_space_bitmap_cachep);
}
int __init btrfs_init_cachep(void)
if (!btrfs_inode_cachep)
goto fail;
- btrfs_free_space_cachep = kmem_cache_create("btrfs_free_space",
- sizeof(struct btrfs_free_space), 0,
- SLAB_MEM_SPREAD, NULL);
- if (!btrfs_free_space_cachep)
- goto fail;
-
- btrfs_free_space_bitmap_cachep = kmem_cache_create("btrfs_free_space_bitmap",
- PAGE_SIZE, PAGE_SIZE,
- SLAB_MEM_SPREAD, NULL);
- if (!btrfs_free_space_bitmap_cachep)
- goto fail;
-
if (bioset_init(&btrfs_dio_bioset, BIO_POOL_SIZE,
offsetof(struct btrfs_dio_private, bio),
BIOSET_NEED_BVECS))
if (err)
goto free_transaction;
- err = extent_state_init_cachep();
+ err = btrfs_free_space_init();
if (err)
goto free_ctree;
+ err = extent_state_init_cachep();
+ if (err)
+ goto free_free_space;
+
err = extent_buffer_init_cachep();
if (err)
goto free_extent_cachep;
extent_buffer_free_cachep();
free_extent_cachep:
extent_state_free_cachep();
+free_free_space:
+ btrfs_free_space_exit();
free_ctree:
btrfs_ctree_exit();
free_transaction:
static void __exit exit_btrfs_fs(void)
{
+ btrfs_free_space_exit();
btrfs_ctree_exit();
btrfs_transaction_exit();
btrfs_destroy_cachep();