Commit 6f0d04f8 authored by Josef Bacik's avatar Josef Bacik Committed by David Sterba
Browse files

btrfs: separate out the extent io init function 



We are moving extent_io_tree into it's on file, so separate out the
extent_state init stuff from extent_io_tree_init().

Signed-off-by: default avatarJosef Bacik <josef@toxicpanda.com>
Reviewed-by: default avatarDavid Sterba <dsterba@suse.com>
Signed-off-by: default avatarDavid Sterba <dsterba@suse.com>
parent 33ca832f

fs/btrfs/extent_io.c

+11 −7
Original line number Diff line number Diff line
@@ -200,19 +200,23 @@ static int __must_check flush_write_bio(struct extent_page_data *epd) 
	return ret;

}



int __init extent_io_init(void)

int __init extent_state_cache_init(void)

{

	extent_state_cache = kmem_cache_create("btrfs_extent_state",

			sizeof(struct extent_state), 0,

			SLAB_MEM_SPREAD, NULL);

	if (!extent_state_cache)

		return -ENOMEM;

	return 0;

}



int __init extent_io_init(void)

{

	extent_buffer_cache = kmem_cache_create("btrfs_extent_buffer",

			sizeof(struct extent_buffer), 0,

			SLAB_MEM_SPREAD, NULL);

	if (!extent_buffer_cache)

		goto free_state_cache;

		return -ENOMEM;



	if (bioset_init(&btrfs_bioset, BIO_POOL_SIZE,

			offsetof(struct btrfs_io_bio, bio),
@@ -230,24 +234,24 @@ free_bioset: 
free_buffer_cache:

	kmem_cache_destroy(extent_buffer_cache);

	extent_buffer_cache = NULL;

	return -ENOMEM;

}



free_state_cache:

void __cold extent_state_cache_exit(void)

{

	btrfs_extent_state_leak_debug_check();

	kmem_cache_destroy(extent_state_cache);

	extent_state_cache = NULL;

	return -ENOMEM;

}



void __cold extent_io_exit(void)

{

	btrfs_extent_buffer_leak_debug_check();

	btrfs_extent_state_leak_debug_check();



	/*

	 * Make sure all delayed rcu free are flushed before we

	 * destroy caches.

	 */

	rcu_barrier();

	kmem_cache_destroy(extent_state_cache);

	kmem_cache_destroy(extent_buffer_cache);

	bioset_exit(&btrfs_bioset);

}

fs/btrfs/extent_io.h

+2 −0
Original line number Diff line number Diff line
@@ -556,4 +556,6 @@ bool find_lock_delalloc_range(struct inode *inode, 
struct extent_buffer *alloc_test_extent_buffer(struct btrfs_fs_info *fs_info,

					       u64 start);



int __init extent_state_cache_init(void);

void __cold extent_state_cache_exit(void);

#endif

fs/btrfs/super.c

+8 −1
Original line number Diff line number Diff line
@@ -2360,10 +2360,14 @@ static int __init init_btrfs_fs(void) 
	if (err)

		goto free_cachep;



	err = extent_map_init();

	err = extent_state_cache_init();

	if (err)

		goto free_extent_io;



	err = extent_map_init();

	if (err)

		goto free_extent_state_cache;



	err = ordered_data_init();

	if (err)

		goto free_extent_map;
@@ -2422,6 +2426,8 @@ free_ordered_data: 
	ordered_data_exit();

free_extent_map:

	extent_map_exit();

free_extent_state_cache:

	extent_state_cache_exit();

free_extent_io:

	extent_io_exit();

free_cachep:
@@ -2442,6 +2448,7 @@ static void __exit exit_btrfs_fs(void) 
	btrfs_prelim_ref_exit();

	ordered_data_exit();

	extent_map_exit();

	extent_state_cache_exit();

	extent_io_exit();

	btrfs_interface_exit();

	btrfs_end_io_wq_exit();

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