diff options
Diffstat (limited to 'fs/gfs2/trans.h')
| -rw-r--r-- | fs/gfs2/trans.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/fs/gfs2/trans.h b/fs/gfs2/trans.h new file mode 100644 index 000000000..ad70087d0 --- /dev/null +++ b/fs/gfs2/trans.h @@ -0,0 +1,49 @@ +/* + * Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. + * Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved. + * + * This copyrighted material is made available to anyone wishing to use, + * modify, copy, or redistribute it subject to the terms and conditions + * of the GNU General Public License version 2. + */ + +#ifndef __TRANS_DOT_H__ +#define __TRANS_DOT_H__ + +#include <linux/buffer_head.h> +struct gfs2_sbd; +struct gfs2_rgrpd; +struct gfs2_glock; + +#define RES_DINODE 1 +#define RES_INDIRECT 1 +#define RES_JDATA 1 +#define RES_DATA 1 +#define RES_LEAF 1 +#define RES_RG_HDR 1 +#define RES_RG_BIT 2 +#define RES_EATTR 1 +#define RES_STATFS 1 +#define RES_QUOTA 2 + +/* reserve either the number of blocks to be allocated plus the rg header + * block, or all of the blocks in the rg, whichever is smaller */ +static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested) +{ + struct gfs2_rgrpd *rgd = ip->i_res.rs_rbm.rgd; + + if (requested < rgd->rd_length) + return requested + 1; + return rgd->rd_length; +} + +extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks, + unsigned int revokes); + +extern void gfs2_trans_end(struct gfs2_sbd *sdp); +extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh); +extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh); +extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd); +extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len); + +#endif /* __TRANS_DOT_H__ */ |