51 	struct buffer_head *bh;  in nilfs_btnode_create_block()  local
53 	bh = nilfs_grab_buffer(inode, btnc, blocknr, BIT(BH_NILFS_Node));  in nilfs_btnode_create_block()
54 	if (unlikely(!bh))  in nilfs_btnode_create_block()
57 	if (unlikely(buffer_mapped(bh) || buffer_uptodate(bh) ||  in nilfs_btnode_create_block()
58 		     buffer_dirty(bh))) {  in nilfs_btnode_create_block()
71 	memset(bh->b_data, 0, i_blocksize(inode));  in nilfs_btnode_create_block()
72 	bh->b_blocknr = blocknr;  in nilfs_btnode_create_block()
73 	set_buffer_mapped(bh);  in nilfs_btnode_create_block()
74 	set_buffer_uptodate(bh);  in nilfs_btnode_create_block()
76 	unlock_page(bh->b_page);  in nilfs_btnode_create_block()
77 	put_page(bh->b_page);  in nilfs_btnode_create_block()
78 	return bh;  in nilfs_btnode_create_block()
81 	unlock_page(bh->b_page);  in nilfs_btnode_create_block()
82 	put_page(bh->b_page);  in nilfs_btnode_create_block()
83 	brelse(bh);  in nilfs_btnode_create_block()
91 	struct buffer_head *bh;  in nilfs_btnode_submit_block()  local
96 	bh = nilfs_grab_buffer(inode, btnc, blocknr, BIT(BH_NILFS_Node));  in nilfs_btnode_submit_block()
97 	if (unlikely(!bh))  in nilfs_btnode_submit_block()
101 	page = bh->b_page;  in nilfs_btnode_submit_block()
103 	if (buffer_uptodate(bh) || buffer_dirty(bh))  in nilfs_btnode_submit_block()
115 				brelse(bh);  in nilfs_btnode_submit_block()
122 		if (pblocknr != *submit_ptr + 1 || !trylock_buffer(bh)) {  in nilfs_btnode_submit_block()
124 			brelse(bh);  in nilfs_btnode_submit_block()
128 		lock_buffer(bh);  in nilfs_btnode_submit_block()
130 	if (buffer_uptodate(bh)) {  in nilfs_btnode_submit_block()
131 		unlock_buffer(bh);  in nilfs_btnode_submit_block()
135 	set_buffer_mapped(bh);  in nilfs_btnode_submit_block()
136 	bh->b_blocknr = pblocknr; /* set block address for read */  in nilfs_btnode_submit_block()
137 	bh->b_end_io = end_buffer_read_sync;  in nilfs_btnode_submit_block()
138 	get_bh(bh);  in nilfs_btnode_submit_block()
139 	submit_bh(opf, bh);  in nilfs_btnode_submit_block()
140 	bh->b_blocknr = blocknr; /* set back to the given block address */  in nilfs_btnode_submit_block()
144 	*pbh = bh;  in nilfs_btnode_submit_block()
159 void nilfs_btnode_delete(struct buffer_head *bh)  in nilfs_btnode_delete()  argument
162 	struct page *page = bh->b_page;  in nilfs_btnode_delete()
170 	nilfs_forget_buffer(bh);  in nilfs_btnode_delete()
198 	obh = ctxt->bh;  in nilfs_btnode_prepare_change_key()
253 	struct buffer_head *obh = ctxt->bh, *nbh = ctxt->newbh;  in nilfs_btnode_commit_change_key()
281 		ctxt->bh = nbh;  in nilfs_btnode_commit_change_key()
301 		unlock_page(ctxt->bh->b_page);  in nilfs_btnode_abort_change_key()