73c32e07a3
All users have now been converted to get_nth_block(). Link: https://lkml.kernel.org/r/20231016201114.1928083-16-willy@infradead.org Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Acked-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Cc: Andreas Gruenbacher <agruenba@redhat.com> Cc: Pankaj Raghav <p.raghav@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Buffer/page management specific to NILFS
|
|
*
|
|
* Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation.
|
|
*
|
|
* Written by Ryusuke Konishi and Seiji Kihara.
|
|
*/
|
|
|
|
#ifndef _NILFS_PAGE_H
|
|
#define _NILFS_PAGE_H
|
|
|
|
#include <linux/buffer_head.h>
|
|
#include "nilfs.h"
|
|
|
|
/*
|
|
* Extended buffer state bits
|
|
*/
|
|
enum {
|
|
BH_NILFS_Allocated = BH_PrivateStart,
|
|
BH_NILFS_Node,
|
|
BH_NILFS_Volatile,
|
|
BH_NILFS_Checked,
|
|
BH_NILFS_Redirected,
|
|
};
|
|
|
|
BUFFER_FNS(NILFS_Node, nilfs_node) /* nilfs node buffers */
|
|
BUFFER_FNS(NILFS_Volatile, nilfs_volatile)
|
|
BUFFER_FNS(NILFS_Checked, nilfs_checked) /* buffer is verified */
|
|
BUFFER_FNS(NILFS_Redirected, nilfs_redirected) /* redirected to a copy */
|
|
|
|
|
|
int __nilfs_clear_page_dirty(struct page *);
|
|
|
|
struct buffer_head *nilfs_grab_buffer(struct inode *, struct address_space *,
|
|
unsigned long, unsigned long);
|
|
void nilfs_forget_buffer(struct buffer_head *);
|
|
void nilfs_copy_buffer(struct buffer_head *, struct buffer_head *);
|
|
int nilfs_page_buffers_clean(struct page *);
|
|
void nilfs_page_bug(struct page *);
|
|
|
|
int nilfs_copy_dirty_pages(struct address_space *, struct address_space *);
|
|
void nilfs_copy_back_pages(struct address_space *, struct address_space *);
|
|
void nilfs_clear_dirty_page(struct page *, bool);
|
|
void nilfs_clear_dirty_pages(struct address_space *, bool);
|
|
unsigned int nilfs_page_count_clean_buffers(struct page *, unsigned int,
|
|
unsigned int);
|
|
unsigned long nilfs_find_uncommitted_extent(struct inode *inode,
|
|
sector_t start_blk,
|
|
sector_t *blkoff);
|
|
|
|
#define NILFS_PAGE_BUG(page, m, a...) \
|
|
do { nilfs_page_bug(page); BUG(); } while (0)
|
|
|
|
#endif /* _NILFS_PAGE_H */
|