forked from luck/tmp_suning_uos_patched
bf97b6734e
Some of the functions in GFS2 were not reserving space in the transaction for the resource group header and the resource groups bitblocks that get added when you do allocation. GFS2 now makes sure to reserve space for the resource group header and either all the bitblocks in the resource group, or one for each block that it may allocate, whichever is smaller using the new gfs2_rg_blocks() inline function. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
48 lines
1.4 KiB
C
48 lines
1.4 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_alloc *al)
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{
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return (al->al_requested < al->al_rgd->rd_length)?
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al->al_requested + 1 : al->al_rgd->rd_length;
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}
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int gfs2_trans_begin(struct gfs2_sbd *sdp, unsigned int blocks,
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unsigned int revokes);
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void gfs2_trans_end(struct gfs2_sbd *sdp);
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void gfs2_trans_add_bh(struct gfs2_glock *gl, struct buffer_head *bh, int meta);
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void gfs2_trans_add_revoke(struct gfs2_sbd *sdp, struct gfs2_bufdata *bd);
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void gfs2_trans_add_unrevoke(struct gfs2_sbd *sdp, u64 blkno, unsigned int len);
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void gfs2_trans_add_rg(struct gfs2_rgrpd *rgd);
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#endif /* __TRANS_DOT_H__ */
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