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Commit 2ead6ae7 authored by Yan, Zheng's avatar Yan, Zheng Committed by Chris Mason
Browse files

Btrfs: Kill init_btrfs_i() 



All code in init_btrfs_i can be moved into btrfs_alloc_inode()

Signed-off-by: default avatarYan Zheng <zheng.yan@oracle.com>
Signed-off-by: default avatarChris Mason <chris.mason@oracle.com>
parent 5da9d01b

fs/btrfs/inode.c

+28 −36
Original line number Diff line number Diff line
@@ -3596,40 +3596,10 @@ int btrfs_invalidate_inodes(struct btrfs_root *root) 
	return 0;

}



static noinline void init_btrfs_i(struct inode *inode)

{

	struct btrfs_inode *bi = BTRFS_I(inode);



	bi->generation = 0;

	bi->sequence = 0;

	bi->last_trans = 0;

	bi->last_sub_trans = 0;

	bi->logged_trans = 0;

	bi->delalloc_bytes = 0;

	bi->reserved_bytes = 0;

	bi->disk_i_size = 0;

	bi->flags = 0;

	bi->index_cnt = (u64)-1;

	bi->last_unlink_trans = 0;

	bi->ordered_data_close = 0;

	bi->force_compress = 0;

	extent_map_tree_init(&BTRFS_I(inode)->extent_tree, GFP_NOFS);

	extent_io_tree_init(&BTRFS_I(inode)->io_tree,

			     inode->i_mapping, GFP_NOFS);

	extent_io_tree_init(&BTRFS_I(inode)->io_failure_tree,

			     inode->i_mapping, GFP_NOFS);

	INIT_LIST_HEAD(&BTRFS_I(inode)->delalloc_inodes);

	INIT_LIST_HEAD(&BTRFS_I(inode)->ordered_operations);

	RB_CLEAR_NODE(&BTRFS_I(inode)->rb_node);

	btrfs_ordered_inode_tree_init(&BTRFS_I(inode)->ordered_tree);

	mutex_init(&BTRFS_I(inode)->log_mutex);

}



static int btrfs_init_locked_inode(struct inode *inode, void *p)

{

	struct btrfs_iget_args *args = p;

	inode->i_ino = args->ino;

	init_btrfs_i(inode);

	BTRFS_I(inode)->root = args->root;

	btrfs_set_inode_space_info(args->root, inode);

	return 0;
@@ -3692,8 +3662,6 @@ static struct inode *new_simple_dir(struct super_block *s, 
	if (!inode)

		return ERR_PTR(-ENOMEM);



	init_btrfs_i(inode);



	BTRFS_I(inode)->root = root;

	memcpy(&BTRFS_I(inode)->location, key, sizeof(*key));

	BTRFS_I(inode)->dummy_inode = 1;
@@ -4092,7 +4060,6 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans, 
	 * btrfs_get_inode_index_count has an explanation for the magic

	 * number

	 */

	init_btrfs_i(inode);

	BTRFS_I(inode)->index_cnt = 2;

	BTRFS_I(inode)->root = root;

	BTRFS_I(inode)->generation = trans->transid;
@@ -5263,21 +5230,46 @@ unsigned long btrfs_force_ra(struct address_space *mapping, 
struct inode *btrfs_alloc_inode(struct super_block *sb)

{

	struct btrfs_inode *ei;

	struct inode *inode;



	ei = kmem_cache_alloc(btrfs_inode_cachep, GFP_NOFS);

	if (!ei)

		return NULL;



	ei->root = NULL;

	ei->space_info = NULL;

	ei->generation = 0;

	ei->sequence = 0;

	ei->last_trans = 0;

	ei->last_sub_trans = 0;

	ei->logged_trans = 0;

	ei->delalloc_bytes = 0;

	ei->reserved_bytes = 0;

	ei->disk_i_size = 0;

	ei->flags = 0;

	ei->index_cnt = (u64)-1;

	ei->last_unlink_trans = 0;



	spin_lock_init(&ei->accounting_lock);

	ei->outstanding_extents = 0;

	ei->reserved_extents = 0;

	ei->root = NULL;

	spin_lock_init(&ei->accounting_lock);



	ei->ordered_data_close = 0;

	ei->dummy_inode = 0;

	ei->force_compress = 0;



	inode = &ei->vfs_inode;

	extent_map_tree_init(&ei->extent_tree, GFP_NOFS);

	extent_io_tree_init(&ei->io_tree, &inode->i_data, GFP_NOFS);

	extent_io_tree_init(&ei->io_failure_tree, &inode->i_data, GFP_NOFS);

	mutex_init(&ei->log_mutex);

	btrfs_ordered_inode_tree_init(&ei->ordered_tree);

	INIT_LIST_HEAD(&ei->i_orphan);

	INIT_LIST_HEAD(&ei->delalloc_inodes);

	INIT_LIST_HEAD(&ei->ordered_operations);

	return &ei->vfs_inode;

	RB_CLEAR_NODE(&ei->rb_node);



	return inode;

}



void btrfs_destroy_inode(struct inode *inode)