50 строки
1.5 KiB
C
50 строки
1.5 KiB
C
/*
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* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
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* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
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*
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* This copyrighted material is made available to anyone wishing to use,
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* modify, copy, or redistribute it subject to the terms and conditions
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* of the GNU General Public License version 2.
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*/
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#ifndef __TRANS_DOT_H__
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#define __TRANS_DOT_H__
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#include <linux/buffer_head.h>
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struct gfs2_sbd;
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struct gfs2_rgrpd;
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struct gfs2_glock;
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#define RES_DINODE 1
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#define RES_INDIRECT 1
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#define RES_JDATA 1
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#define RES_DATA 1
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#define RES_LEAF 1
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#define RES_RG_HDR 1
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#define RES_RG_BIT 2
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#define RES_EATTR 1
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#define RES_STATFS 1
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#define RES_QUOTA 2
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/* reserve either the number of blocks to be allocated plus the rg header
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* block, or all of the blocks in the rg, whichever is smaller */
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static inline unsigned int gfs2_rg_blocks(const struct gfs2_inode *ip, unsigned requested)
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{
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struct gfs2_rgrpd *rgd = ip->i_res.rs_rbm.rgd;
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if (requested < rgd->rd_length)
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return requested + 1;
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return rgd->rd_length;
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}
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extern int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
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unsigned int revokes);
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extern void gfs2_trans_end(struct gfs2_sbd *sdp);
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extern void gfs2_trans_add_data(struct gfs2_glock *gl, struct buffer_head *bh);
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extern void gfs2_trans_add_meta(struct gfs2_glock *gl, struct buffer_head *bh);
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extern void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
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extern void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
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#endif /* __TRANS_DOT_H__ */
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