From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- fs/ocfs2/aops.h | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 fs/ocfs2/aops.h (limited to 'fs/ocfs2/aops.h') diff --git a/fs/ocfs2/aops.h b/fs/ocfs2/aops.h new file mode 100644 index 000000000..3a520117f --- /dev/null +++ b/fs/ocfs2/aops.h @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2002, 2004, 2005 Oracle. All rights reserved. + */ + +#ifndef OCFS2_AOPS_H +#define OCFS2_AOPS_H + +#include + +handle_t *ocfs2_start_walk_page_trans(struct inode *inode, + struct page *page, + unsigned from, + unsigned to); + +int ocfs2_map_page_blocks(struct page *page, u64 *p_blkno, + struct inode *inode, unsigned int from, + unsigned int to, int new); + +void ocfs2_unlock_and_free_pages(struct page **pages, int num_pages); + +int walk_page_buffers( handle_t *handle, + struct buffer_head *head, + unsigned from, + unsigned to, + int *partial, + int (*fn)( handle_t *handle, + struct buffer_head *bh)); + +int ocfs2_write_end_nolock(struct address_space *mapping, + loff_t pos, unsigned len, unsigned copied, void *fsdata); + +typedef enum { + OCFS2_WRITE_BUFFER = 0, + OCFS2_WRITE_DIRECT, + OCFS2_WRITE_MMAP, +} ocfs2_write_type_t; + +int ocfs2_write_begin_nolock(struct address_space *mapping, + loff_t pos, unsigned len, ocfs2_write_type_t type, + struct page **pagep, void **fsdata, + struct buffer_head *di_bh, struct page *mmap_page); + +int ocfs2_read_inline_data(struct inode *inode, struct page *page, + struct buffer_head *di_bh); +int ocfs2_size_fits_inline_data(struct buffer_head *di_bh, u64 new_size); + +int ocfs2_get_block(struct inode *inode, sector_t iblock, + struct buffer_head *bh_result, int create); +/* all ocfs2_dio_end_io()'s fault */ +#define ocfs2_iocb_is_rw_locked(iocb) \ + test_bit(0, (unsigned long *)&iocb->private) +static inline void ocfs2_iocb_set_rw_locked(struct kiocb *iocb, int level) +{ + set_bit(0, (unsigned long *)&iocb->private); + if (level) + set_bit(1, (unsigned long *)&iocb->private); + else + clear_bit(1, (unsigned long *)&iocb->private); +} + +/* + * Using a named enum representing lock types in terms of #N bit stored in + * iocb->private, which is going to be used for communication between + * ocfs2_dio_end_io() and ocfs2_file_write/read_iter(). + */ +enum ocfs2_iocb_lock_bits { + OCFS2_IOCB_RW_LOCK = 0, + OCFS2_IOCB_RW_LOCK_LEVEL, + OCFS2_IOCB_NUM_LOCKS +}; + +#define ocfs2_iocb_clear_rw_locked(iocb) \ + clear_bit(OCFS2_IOCB_RW_LOCK, (unsigned long *)&iocb->private) +#define ocfs2_iocb_rw_locked_level(iocb) \ + test_bit(OCFS2_IOCB_RW_LOCK_LEVEL, (unsigned long *)&iocb->private) + +#endif /* OCFS2_FILE_H */ -- cgit v1.2.3