1 /* 2 * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. 3 * Copyright (C) 2004-2006 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 __TRANS_DOT_H__ 11 #define __TRANS_DOT_H__ 12 13 #include <linux/buffer_head.h> 14 struct gfs2_sbd; 15 struct gfs2_rgrpd; 16 struct gfs2_glock; 17 18 #define RES_DINODE 1 19 #define RES_INDIRECT 1 20 #define RES_JDATA 1 21 #define RES_DATA 1 22 #define RES_LEAF 1 23 #define RES_RG_HDR 1 24 #define RES_RG_BIT 2 25 #define RES_EATTR 1 26 #define RES_STATFS 1 27 #define RES_QUOTA 2 28 29 /* reserve either the number of blocks to be allocated plus the rg header 30 * block, or all of the blocks in the rg, whichever is smaller */ 31 static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested) 32 { 33 struct gfs2_rgrpd *rgd = ip->i_res.rs_rbm.rgd; 34 35 if (requested < rgd->rd_length) 36 return requested + 1; 37 return rgd->rd_length; 38 } 39 40 extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks, 41 unsigned int revokes); 42 43 extern void gfs2_trans_end(struct gfs2_sbd *sdp); 44 extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh); 45 extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh); 46 extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd); 47 extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len); 48 49 #endif /* __TRANS_DOT_H__ */ 50