1 /* -*- mode: c; c-basic-offset: 8; -*- 2 * vim: noexpandtab sw=8 ts=8 sts=0: 3 * 4 * Copyright (C) 2002, 2004, 2005 Oracle. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public 8 * License as published by the Free Software Foundation; either 9 * version 2 of the License, or (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public 17 * License along with this program; if not, write to the 18 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 19 * Boston, MA 021110-1307, USA. 20 */ 21 22 #ifndef OCFS2_AOPS_H 23 #define OCFS2_AOPS_H 24 25 int ocfs2_prepare_write_nolock(struct inode *inode, struct page *page, 26 unsigned from, unsigned to); 27 28 handle_t *ocfs2_start_walk_page_trans(struct inode *inode, 29 struct page *page, 30 unsigned from, 31 unsigned to); 32 33 int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, 34 struct inode *inode, unsigned int from, 35 unsigned int to, int new); 36 37 void ocfs2_unlock_and_free_pages(struct page **pages, int num_pages); 38 39 int walk_page_buffers( handle_t *handle, 40 struct buffer_head *head, 41 unsigned from, 42 unsigned to, 43 int *partial, 44 int (*fn)( handle_t *handle, 45 struct buffer_head *bh)); 46 47 int ocfs2_write_end_nolock(struct address_space *mapping, 48 loff_t pos, unsigned len, unsigned copied, 49 struct page *page, void *fsdata); 50 51 int ocfs2_write_begin_nolock(struct file *filp, 52 struct address_space *mapping, 53 loff_t pos, unsigned len, unsigned flags, 54 struct page **pagep, void **fsdata, 55 struct buffer_head *di_bh, struct page *mmap_page); 56 57 int ocfs2_read_inline_data(struct inode *inode, struct page *page, 58 struct buffer_head *di_bh); 59 int ocfs2_size_fits_inline_data(struct buffer_head *di_bh, u64 new_size); 60 61 int ocfs2_get_block(struct inode *inode, sector_t iblock, 62 struct buffer_head *bh_result, int create); 63 /* all ocfs2_dio_end_io()'s fault */ 64 #define ocfs2_iocb_is_rw_locked(iocb) \ 65 test_bit(0, (unsigned long *)&iocb->private) 66 static inline void ocfs2_iocb_set_rw_locked(struct kiocb *iocb, int level) 67 { 68 set_bit(0, (unsigned long *)&iocb->private); 69 if (level) 70 set_bit(1, (unsigned long *)&iocb->private); 71 else 72 clear_bit(1, (unsigned long *)&iocb->private); 73 } 74 #define ocfs2_iocb_clear_rw_locked(iocb) \ 75 clear_bit(0, (unsigned long *)&iocb->private) 76 #define ocfs2_iocb_rw_locked_level(iocb) \ 77 test_bit(1, (unsigned long *)&iocb->private) 78 #endif /* OCFS2_FILE_H */ 79