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>
98 lines
3.2 KiB
C
98 lines
3.2 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) 2004-2008 Red Hat, Inc. All rights reserved.
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*/
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#ifndef __RGRP_DOT_H__
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#define __RGRP_DOT_H__
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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/* Since each block in the file system is represented by two bits in the
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* bitmap, one 64-bit word in the bitmap will represent 32 blocks.
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* By reserving 32 blocks at a time, we can optimize / shortcut how we search
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* through the bitmaps by looking a word at a time.
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*/
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#define RGRP_RSRV_MINBLKS 32
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#define RGRP_RSRV_ADDBLKS 64
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struct gfs2_rgrpd;
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struct gfs2_sbd;
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struct gfs2_holder;
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void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd);
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struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact);
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struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp);
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struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd);
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void gfs2_clear_rgrpd(struct gfs2_sbd *sdp);
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int gfs2_rindex_update(struct gfs2_sbd *sdp);
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void gfs2_free_clones(struct gfs2_rgrpd *rgd);
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int gfs2_rgrp_go_instantiate(struct gfs2_glock *gl);
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void gfs2_rgrp_brelse(struct gfs2_rgrpd *rgd);
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struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip);
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#define GFS2_AF_ORLOV 1
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int gfs2_inplace_reserve(struct gfs2_inode *ip,
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struct gfs2_alloc_parms *ap);
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void gfs2_inplace_release(struct gfs2_inode *ip);
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int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n,
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bool dinode);
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void gfs2_rs_deltree(struct gfs2_blkreserv *rs);
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void gfs2_rs_delete(struct gfs2_inode *ip);
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void __gfs2_free_blocks(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
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u64 bstart, u32 blen, int meta);
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void gfs2_free_meta(struct gfs2_inode *ip, struct gfs2_rgrpd *rgd,
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u64 bstart, u32 blen);
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void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip);
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void gfs2_unlink_di(struct inode *inode);
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int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr,
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unsigned int type);
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struct gfs2_rgrp_list {
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unsigned int rl_rgrps;
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unsigned int rl_space;
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struct gfs2_rgrpd **rl_rgd;
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struct gfs2_holder *rl_ghs;
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};
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void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist,
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u64 block);
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void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist,
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unsigned int state, u16 flags);
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void gfs2_rlist_free(struct gfs2_rgrp_list *rlist);
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u64 gfs2_ri_total(struct gfs2_sbd *sdp);
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void gfs2_rgrp_dump(struct seq_file *seq, struct gfs2_rgrpd *rgd,
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const char *fs_id_buf);
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int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
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struct buffer_head *bh,
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const struct gfs2_bitmap *bi, unsigned minlen,
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u64 *ptrimmed);
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int gfs2_fitrim(struct file *filp, void __user *argp);
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/* This is how to tell if a reservation is in the rgrp tree: */
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static inline bool gfs2_rs_active(const struct gfs2_blkreserv *rs)
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{
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return !RB_EMPTY_NODE(&rs->rs_node);
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}
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static inline int rgrp_contains_block(struct gfs2_rgrpd *rgd, u64 block)
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{
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u64 first = rgd->rd_data0;
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u64 last = first + rgd->rd_data;
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return first <= block && block < last;
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}
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void check_and_update_goal(struct gfs2_inode *ip);
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void rgrp_lock_local(struct gfs2_rgrpd *rgd);
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void rgrp_unlock_local(struct gfs2_rgrpd *rgd);
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#endif /* __RGRP_DOT_H__ */
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