| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. |
| 3 | * Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved. |
| 4 | * |
| 5 | * This copyrighted material is made available to anyone wishing to use, |
| 6 | * modify, copy, or redistribute it subject to the terms and conditions |
| 7 | * of the GNU General Public License version 2. |
| 8 | */ |
| 9 | |
| 10 | #ifndef __RGRP_DOT_H__ |
| 11 | #define __RGRP_DOT_H__ |
| 12 | |
| 13 | #include <linux/slab.h> |
| 14 | #include <linux/uaccess.h> |
| 15 | |
| 16 | struct gfs2_rgrpd; |
| 17 | struct gfs2_sbd; |
| 18 | struct gfs2_holder; |
| 19 | |
| 20 | extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd); |
| 21 | |
| 22 | extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk, bool exact); |
| 23 | extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp); |
| 24 | extern struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd); |
| 25 | |
| 26 | extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp); |
| 27 | extern int gfs2_rindex_update(struct gfs2_sbd *sdp); |
| 28 | extern void gfs2_free_clones(struct gfs2_rgrpd *rgd); |
| 29 | extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh); |
| 30 | extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh); |
| 31 | |
| 32 | extern struct gfs2_qadata *gfs2_qadata_get(struct gfs2_inode *ip); |
| 33 | static inline void gfs2_qadata_put(struct gfs2_inode *ip) |
| 34 | { |
| 35 | BUG_ON(ip->i_qadata == NULL); |
| 36 | kfree(ip->i_qadata); |
| 37 | ip->i_qadata = NULL; |
| 38 | } |
| 39 | |
| 40 | extern int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested); |
| 41 | extern void gfs2_inplace_release(struct gfs2_inode *ip); |
| 42 | |
| 43 | extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n, |
| 44 | bool dinode, u64 *generation); |
| 45 | |
| 46 | extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta); |
| 47 | extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen); |
| 48 | extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); |
| 49 | extern void gfs2_unlink_di(struct inode *inode); |
| 50 | extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, |
| 51 | unsigned int type); |
| 52 | |
| 53 | struct gfs2_rgrp_list { |
| 54 | unsigned int rl_rgrps; |
| 55 | unsigned int rl_space; |
| 56 | struct gfs2_rgrpd **rl_rgd; |
| 57 | struct gfs2_holder *rl_ghs; |
| 58 | }; |
| 59 | |
| 60 | extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist, |
| 61 | u64 block); |
| 62 | extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state); |
| 63 | extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist); |
| 64 | extern u64 gfs2_ri_total(struct gfs2_sbd *sdp); |
| 65 | extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl); |
| 66 | extern int gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset, |
| 67 | struct buffer_head *bh, |
| 68 | const struct gfs2_bitmap *bi, unsigned minlen, u64 *ptrimmed); |
| 69 | extern int gfs2_fitrim(struct file *filp, void __user *argp); |
| 70 | |
| 71 | #endif /* __RGRP_DOT_H__ */ |