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0b2355fe91
For non-static function declarations, external linkage is implied and the 'extern' keyword isn't needed. Some static checkers complain about the overuse of 'extern', so clean up all the function declarations. In addition, remove 'extern' from the definition of free_local_statfs_inodes(); it isn't needed there, either. Signed-off-by: Andreas Gruenbacher <agruenba@redhat.com>
70 lines
2.2 KiB
C
70 lines
2.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*/
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#ifndef __BMAP_DOT_H__
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#define __BMAP_DOT_H__
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#include <linux/iomap.h>
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#include "inode.h"
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struct inode;
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struct gfs2_inode;
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struct page;
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/**
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* gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
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* @ip: the file
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* @len: the number of bytes to be written to the file
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* @data_blocks: returns the number of data blocks required
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* @ind_blocks: returns the number of indirect blocks required
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*
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*/
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static inline void gfs2_write_calc_reserv(const struct gfs2_inode *ip,
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unsigned int len,
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unsigned int *data_blocks,
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unsigned int *ind_blocks)
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{
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const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
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unsigned int tmp;
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BUG_ON(gfs2_is_dir(ip));
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*data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
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*ind_blocks = 3 * (sdp->sd_max_height - 1);
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for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
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tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
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*ind_blocks += tmp;
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}
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}
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extern const struct iomap_ops gfs2_iomap_ops;
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extern const struct iomap_writeback_ops gfs2_writeback_ops;
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int gfs2_unstuff_dinode(struct gfs2_inode *ip);
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int gfs2_block_map(struct inode *inode, sector_t lblock,
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struct buffer_head *bh, int create);
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int gfs2_iomap_get(struct inode *inode, loff_t pos, loff_t length,
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struct iomap *iomap);
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int gfs2_iomap_alloc(struct inode *inode, loff_t pos, loff_t length,
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struct iomap *iomap);
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int gfs2_get_extent(struct inode *inode, u64 lblock, u64 *dblock,
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unsigned int *extlen);
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int gfs2_alloc_extent(struct inode *inode, u64 lblock, u64 *dblock,
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unsigned *extlen, bool *new);
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int gfs2_setattr_size(struct inode *inode, u64 size);
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int gfs2_truncatei_resume(struct gfs2_inode *ip);
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int gfs2_file_dealloc(struct gfs2_inode *ip);
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int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
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unsigned int len);
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int gfs2_map_journal_extents(struct gfs2_sbd *sdp, struct gfs2_jdesc *jd);
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void gfs2_free_journal_extents(struct gfs2_jdesc *jd);
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int __gfs2_punch_hole(struct file *file, loff_t offset, loff_t length);
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#endif /* __BMAP_DOT_H__ */
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