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 struct gfs2_rgrpd; 14 struct gfs2_sbd; 15 struct gfs2_holder; 16 17 extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd); 18 19 struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk); 20 struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp); 21 struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd); 22 23 extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp); 24 extern int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh); 25 26 extern int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd); 27 extern void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd); 28 extern void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd); 29 30 extern void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd); 31 32 extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip); 33 static inline void gfs2_alloc_put(struct gfs2_inode *ip) 34 { 35 BUG_ON(ip->i_alloc == NULL); 36 kfree(ip->i_alloc); 37 ip->i_alloc = NULL; 38 } 39 40 extern int gfs2_inplace_reserve_i(struct gfs2_inode *ip, char *file, 41 unsigned int line); 42 #define gfs2_inplace_reserve(ip) \ 43 gfs2_inplace_reserve_i((ip), __FILE__, __LINE__) 44 45 extern void gfs2_inplace_release(struct gfs2_inode *ip); 46 47 extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n); 48 extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation); 49 50 extern void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen); 51 extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen); 52 extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); 53 extern void gfs2_unlink_di(struct inode *inode); 54 extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, 55 unsigned int type); 56 57 struct gfs2_rgrp_list { 58 unsigned int rl_rgrps; 59 unsigned int rl_space; 60 struct gfs2_rgrpd **rl_rgd; 61 struct gfs2_holder *rl_ghs; 62 }; 63 64 extern void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist, 65 u64 block); 66 extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state); 67 extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist); 68 extern u64 gfs2_ri_total(struct gfs2_sbd *sdp); 69 extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl); 70 71 #endif /* __RGRP_DOT_H__ */ 72