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 extern struct gfs2_rgrpd *gfs2_blk2rgrpd(struct gfs2_sbd *sdp, u64 blk); 22 extern struct gfs2_rgrpd *gfs2_rgrpd_get_first(struct gfs2_sbd *sdp); 23 extern 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_update(struct gfs2_sbd *sdp); 27 extern void gfs2_free_clones(struct gfs2_rgrpd *rgd); 28 extern int gfs2_rgrp_go_lock(struct gfs2_holder *gh); 29 extern void gfs2_rgrp_go_unlock(struct gfs2_holder *gh); 30 31 extern struct gfs2_qadata *gfs2_qadata_get(struct gfs2_inode *ip); 32 static inline void gfs2_qadata_put(struct gfs2_inode *ip) 33 { 34 BUG_ON(ip->i_qadata == NULL); 35 kfree(ip->i_qadata); 36 ip->i_qadata = NULL; 37 } 38 39 extern int gfs2_inplace_reserve(struct gfs2_inode *ip, u32 requested); 40 extern void gfs2_inplace_release(struct gfs2_inode *ip); 41 42 extern int gfs2_alloc_blocks(struct gfs2_inode *ip, u64 *bn, unsigned int *n, 43 bool dinode, u64 *generation); 44 45 extern void __gfs2_free_blocks(struct gfs2_inode *ip, u64 bstart, u32 blen, int meta); 46 extern void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen); 47 extern void gfs2_free_di(struct gfs2_rgrpd *rgd, struct gfs2_inode *ip); 48 extern void gfs2_unlink_di(struct inode *inode); 49 extern int gfs2_check_blk_type(struct gfs2_sbd *sdp, u64 no_addr, 50 unsigned int type); 51 52 struct gfs2_rgrp_list { 53 unsigned int rl_rgrps; 54 unsigned int rl_space; 55 struct gfs2_rgrpd **rl_rgd; 56 struct gfs2_holder *rl_ghs; 57 }; 58 59 extern void gfs2_rlist_add(struct gfs2_inode *ip, struct gfs2_rgrp_list *rlist, 60 u64 block); 61 extern void gfs2_rlist_alloc(struct gfs2_rgrp_list *rlist, unsigned int state); 62 extern void gfs2_rlist_free(struct gfs2_rgrp_list *rlist); 63 extern u64 gfs2_ri_total(struct gfs2_sbd *sdp); 64 extern int gfs2_rgrp_dump(struct seq_file *seq, const struct gfs2_glock *gl); 65 extern void gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset, 66 struct buffer_head *bh, 67 const struct gfs2_bitmap *bi); 68 69 #endif /* __RGRP_DOT_H__ */ 70