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 15 struct gfs2_rgrpd; 16 struct gfs2_sbd; 17 struct gfs2_holder; 18 19 extern void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd); 20 21 struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk); 22 struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp); 23 struct gfs2_rgrpd *gfs2_rgrpd_get_next(struct gfs2_rgrpd *rgd); 24 25 extern void gfs2_clear_rgrpd(struct gfs2_sbd *sdp); 26 extern int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh); 27 28 extern int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd); 29 extern void gfs2_rgrp_bh_hold(struct gfs2_rgrpd *rgd); 30 extern void gfs2_rgrp_bh_put(struct gfs2_rgrpd *rgd); 31 32 extern void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd); 33 34 extern struct gfs2_alloc *gfs2_alloc_get(struct gfs2_inode *ip); 35 static inline void gfs2_alloc_put(struct gfs2_inode *ip) 36 { 37 BUG_ON(ip->i_alloc == NULL); 38 kfree(ip->i_alloc); 39 ip->i_alloc = NULL; 40 } 41 42 extern int gfs2_inplace_reserve_i(struct gfs2_inode *ip, int hold_rindex, 43 char *file, unsigned int line); 44 #define gfs2_inplace_reserve(ip) \ 45 gfs2_inplace_reserve_i((ip), 1, __FILE__, __LINE__) 46 #define gfs2_inplace_reserve_ri(ip) \ 47 gfs2_inplace_reserve_i((ip), 0, __FILE__, __LINE__) 48 49 extern void gfs2_inplace_release(struct gfs2_inode *ip); 50 51 extern int gfs2_ri_update(struct gfs2_inode *ip); 52 extern int gfs2_alloc_block(struct gfs2_inode *ip, u64 *bn, unsigned int *n); 53 extern int gfs2_alloc_di(struct gfs2_inode *ip, u64 *bn, u64 *generation); 54 55 extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta); 56 extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen); 57 extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); 58 extern void gfs2_unlink_di(struct inode *inode); 59 extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, 60 unsigned int type); 61 62 struct gfs2_rgrp_list { 63 unsigned int rl_rgrps; 64 unsigned int rl_space; 65 struct gfs2_rgrpd **rl_rgd; 66 struct gfs2_holder *rl_ghs; 67 }; 68 69 extern void gfs2_rlist_add(struct gfs2_sbd *sdp, struct gfs2_rgrp_list *rlist, 70 u64 block); 71 extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state); 72 extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist); 73 extern u64 gfs2_ri_total(struct gfs2_sbd *sdp); 74 extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl); 75 76 #endif /* __RGRP_DOT_H__ */ 77