mirror of
https://github.com/torvalds/linux
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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>
82 lines
2.4 KiB
C
82 lines
2.4 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 __DIO_DOT_H__
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#define __DIO_DOT_H__
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#include <linux/buffer_head.h>
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#include <linux/string.h>
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#include "incore.h"
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static inline void gfs2_buffer_clear(struct buffer_head *bh)
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{
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memset(bh->b_data, 0, bh->b_size);
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}
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static inline void gfs2_buffer_clear_tail(struct buffer_head *bh, int head)
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{
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BUG_ON(head > bh->b_size);
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memset(bh->b_data + head, 0, bh->b_size - head);
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}
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static inline void gfs2_buffer_copy_tail(struct buffer_head *to_bh,
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int to_head,
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struct buffer_head *from_bh,
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int from_head)
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{
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BUG_ON(from_head < to_head);
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memcpy(to_bh->b_data + to_head, from_bh->b_data + from_head,
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from_bh->b_size - from_head);
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memset(to_bh->b_data + to_bh->b_size + to_head - from_head,
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0, from_head - to_head);
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}
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extern const struct address_space_operations gfs2_meta_aops;
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extern const struct address_space_operations gfs2_rgrp_aops;
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static inline struct gfs2_sbd *gfs2_mapping2sbd(struct address_space *mapping)
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{
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struct inode *inode = mapping->host;
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if (mapping->a_ops == &gfs2_meta_aops) {
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struct gfs2_glock_aspace *gla =
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container_of(mapping, struct gfs2_glock_aspace, mapping);
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return gla->glock.gl_name.ln_sbd;
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} else if (mapping->a_ops == &gfs2_rgrp_aops)
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return container_of(mapping, struct gfs2_sbd, sd_aspace);
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else
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return inode->i_sb->s_fs_info;
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}
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struct buffer_head *gfs2_meta_new(struct gfs2_glock *gl, u64 blkno);
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int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags,
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int rahead, struct buffer_head **bhp);
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int gfs2_meta_wait(struct gfs2_sbd *sdp, struct buffer_head *bh);
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struct buffer_head *gfs2_getbuf(struct gfs2_glock *gl, u64 blkno,
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int create);
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enum {
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REMOVE_JDATA = 0,
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REMOVE_META = 1,
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};
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void gfs2_remove_from_journal(struct buffer_head *bh, int meta);
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void gfs2_journal_wipe(struct gfs2_inode *ip, u64 bstart, u32 blen);
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int gfs2_meta_buffer(struct gfs2_inode *ip, u32 mtype, u64 num,
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struct buffer_head **bhp);
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static inline int gfs2_meta_inode_buffer(struct gfs2_inode *ip,
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struct buffer_head **bhp)
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{
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return gfs2_meta_buffer(ip, GFS2_METATYPE_DI, ip->i_no_addr, bhp);
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}
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struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen);
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#define buffer_busy(bh) \
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((bh)->b_state & ((1ul << BH_Dirty) | (1ul << BH_Lock) | (1ul << BH_Pinned)))
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#endif /* __DIO_DOT_H__ */
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