Release 4.11 fs/ocfs2/buffer_head_io.h
/* -*- mode: c; c-basic-offset: 8; -*-
* vim: noexpandtab sw=8 ts=8 sts=0:
*
* ocfs2_buffer_head.h
*
* Buffer cache handling functions defined
*
* Copyright (C) 2002, 2004 Oracle. All rights reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 021110-1307, USA.
*/
#ifndef OCFS2_BUFFER_HEAD_IO_H
#define OCFS2_BUFFER_HEAD_IO_H
#include <linux/buffer_head.h>
void ocfs2_end_buffer_io_sync(struct buffer_head *bh,
int uptodate);
int ocfs2_write_block(struct ocfs2_super *osb,
struct buffer_head *bh,
struct ocfs2_caching_info *ci);
int ocfs2_read_blocks_sync(struct ocfs2_super *osb, u64 block,
unsigned int nr, struct buffer_head *bhs[]);
/*
* If not NULL, validate() will be called on a buffer that is freshly
* read from disk. It will not be called if the buffer was in cache.
* Note that if validate() is being used for this buffer, it needs to
* be set even for a READAHEAD call, as it marks the buffer for later
* validation.
*/
int ocfs2_read_blocks(struct ocfs2_caching_info *ci, u64 block, int nr,
struct buffer_head *bhs[], int flags,
int (*validate)(struct super_block *sb,
struct buffer_head *bh));
int ocfs2_write_super_or_backup(struct ocfs2_super *osb,
struct buffer_head *bh);
#define OCFS2_BH_IGNORE_CACHE 1
#define OCFS2_BH_READAHEAD 8
static inline int ocfs2_read_block(struct ocfs2_caching_info *ci, u64 off,
struct buffer_head **bh,
int (*validate)(struct super_block *sb,
struct buffer_head *bh))
{
int status = 0;
if (bh == NULL) {
printk("ocfs2: bh == NULL\n");
status = -EINVAL;
goto bail;
}
status = ocfs2_read_blocks(ci, off, 1, bh, 0, validate);
bail:
return status;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Mark Fasheh | 63 | 73.26% | 1 | 25.00% |
| Joel Becker | 23 | 26.74% | 3 | 75.00% |
| Total | 86 | 100.00% | 4 | 100.00% |
#endif /* OCFS2_BUFFER_HEAD_IO_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Mark Fasheh | 130 | 60.19% | 1 | 16.67% |
| Joel Becker | 72 | 33.33% | 4 | 66.67% |
| Tao Ma | 14 | 6.48% | 1 | 16.67% |
| Total | 216 | 100.00% | 6 | 100.00% |
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