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	xfs: factor ag btree root block initialisation
Cookie cutter code, easily factored. Signed-Off-By: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
		
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						commit
						0410c3bb2b
					
				
					 1 changed files with 262 additions and 225 deletions
				
			
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			@ -71,46 +71,140 @@ xfs_growfs_get_hdr_buf(
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	return bp;
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}
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struct aghdr_init_data {
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	/* per ag data */
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	xfs_agnumber_t		agno;		/* ag to init */
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	xfs_extlen_t		agsize;		/* new AG size */
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	struct list_head	buffer_list;	/* buffer writeback list */
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	xfs_rfsblock_t		nfree;		/* cumulative new free space */
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	/* per header data */
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	xfs_daddr_t		daddr;		/* header location */
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	size_t			numblks;	/* size of header */
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	xfs_btnum_t		type;		/* type of btree root block */
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};
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/*
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 * Write new AG headers to disk. Non-transactional, but written
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 * synchronously so they are completed prior to the growfs transaction
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 * being logged.
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 * Generic btree root block init function
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 */
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static int
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xfs_grow_ag_headers(
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static void
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xfs_btroot_init(
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	struct xfs_mount	*mp,
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	xfs_agnumber_t		agno,
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	xfs_extlen_t		agsize,
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	xfs_rfsblock_t		*nfree,
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	struct list_head	*buffer_list)
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_agf		*agf;
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	struct xfs_agi		*agi;
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	struct xfs_agfl		*agfl;
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	__be32			*agfl_bno;
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	xfs_alloc_rec_t		*arec;
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	struct xfs_buf		*bp;
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	int			bucket;
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	xfs_extlen_t		tmpsize;
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	int			error = 0;
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	xfs_btree_init_block(mp, bp, id->type, 0, 0, id->agno, 0);
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}
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/*
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 * Alloc btree root block init functions
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 */
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static void
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xfs_bnoroot_init(
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	struct xfs_mount	*mp,
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_alloc_rec	*arec;
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	xfs_btree_init_block(mp, bp, XFS_BTNUM_BNO, 0, 1, id->agno, 0);
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	arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
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	arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
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	arec->ar_blockcount = cpu_to_be32(id->agsize -
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					  be32_to_cpu(arec->ar_startblock));
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}
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static void
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xfs_cntroot_init(
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	struct xfs_mount	*mp,
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_alloc_rec	*arec;
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	xfs_btree_init_block(mp, bp, XFS_BTNUM_CNT, 0, 1, id->agno, 0);
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	arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
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	arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
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	arec->ar_blockcount = cpu_to_be32(id->agsize -
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					  be32_to_cpu(arec->ar_startblock));
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}
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/*
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 * Reverse map root block init
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 */
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static void
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xfs_rmaproot_init(
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	struct xfs_mount	*mp,
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_btree_block	*block = XFS_BUF_TO_BLOCK(bp);
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	struct xfs_rmap_rec	*rrec;
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	xfs_btree_init_block(mp, bp, XFS_BTNUM_RMAP, 0, 4, id->agno, 0);
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	/*
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	 * AG freespace header block
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	 * mark the AG header regions as static metadata The BNO
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	 * btree block is the first block after the headers, so
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	 * it's location defines the size of region the static
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	 * metadata consumes.
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	 *
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	 * Note: unlike mkfs, we never have to account for log
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	 * space when growing the data regions
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	 */
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	bp = xfs_growfs_get_hdr_buf(mp,
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			XFS_AG_DADDR(mp, agno, XFS_AGF_DADDR(mp)),
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			XFS_FSS_TO_BB(mp, 1), 0,
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			&xfs_agf_buf_ops);
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	if (!bp) {
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		error = -ENOMEM;
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		goto out_error;
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	}
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	rrec = XFS_RMAP_REC_ADDR(block, 1);
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	rrec->rm_startblock = 0;
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	rrec->rm_blockcount = cpu_to_be32(XFS_BNO_BLOCK(mp));
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	rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_FS);
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	rrec->rm_offset = 0;
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	/* account freespace btree root blocks */
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	rrec = XFS_RMAP_REC_ADDR(block, 2);
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	rrec->rm_startblock = cpu_to_be32(XFS_BNO_BLOCK(mp));
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	rrec->rm_blockcount = cpu_to_be32(2);
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	rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_AG);
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	rrec->rm_offset = 0;
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	/* account inode btree root blocks */
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	rrec = XFS_RMAP_REC_ADDR(block, 3);
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	rrec->rm_startblock = cpu_to_be32(XFS_IBT_BLOCK(mp));
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	rrec->rm_blockcount = cpu_to_be32(XFS_RMAP_BLOCK(mp) -
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					  XFS_IBT_BLOCK(mp));
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	rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_INOBT);
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	rrec->rm_offset = 0;
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	/* account for rmap btree root */
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	rrec = XFS_RMAP_REC_ADDR(block, 4);
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	rrec->rm_startblock = cpu_to_be32(XFS_RMAP_BLOCK(mp));
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	rrec->rm_blockcount = cpu_to_be32(1);
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	rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_AG);
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	rrec->rm_offset = 0;
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	/* account for refc btree root */
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	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
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		rrec = XFS_RMAP_REC_ADDR(block, 5);
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		rrec->rm_startblock = cpu_to_be32(xfs_refc_block(mp));
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		rrec->rm_blockcount = cpu_to_be32(1);
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		rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_REFC);
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		rrec->rm_offset = 0;
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		be16_add_cpu(&block->bb_numrecs, 1);
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	}
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}
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static void
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xfs_agfblock_init(
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	struct xfs_mount	*mp,
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_agf		*agf = XFS_BUF_TO_AGF(bp);
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	xfs_extlen_t		tmpsize;
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	agf = XFS_BUF_TO_AGF(bp);
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	agf->agf_magicnum = cpu_to_be32(XFS_AGF_MAGIC);
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	agf->agf_versionnum = cpu_to_be32(XFS_AGF_VERSION);
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	agf->agf_seqno = cpu_to_be32(agno);
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	agf->agf_length = cpu_to_be32(agsize);
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	agf->agf_seqno = cpu_to_be32(id->agno);
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	agf->agf_length = cpu_to_be32(id->agsize);
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	agf->agf_roots[XFS_BTNUM_BNOi] = cpu_to_be32(XFS_BNO_BLOCK(mp));
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	agf->agf_roots[XFS_BTNUM_CNTi] = cpu_to_be32(XFS_CNT_BLOCK(mp));
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	agf->agf_levels[XFS_BTNUM_BNOi] = cpu_to_be32(1);
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			@ -125,7 +219,7 @@ xfs_grow_ag_headers(
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	agf->agf_flfirst = cpu_to_be32(1);
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	agf->agf_fllast = 0;
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	agf->agf_flcount = 0;
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	tmpsize = agsize - mp->m_ag_prealloc_blocks;
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	tmpsize = id->agsize - mp->m_ag_prealloc_blocks;
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	agf->agf_freeblks = cpu_to_be32(tmpsize);
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	agf->agf_longest = cpu_to_be32(tmpsize);
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	if (xfs_sb_version_hascrc(&mp->m_sb))
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			@ -136,52 +230,42 @@ xfs_grow_ag_headers(
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		agf->agf_refcount_level = cpu_to_be32(1);
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		agf->agf_refcount_blocks = cpu_to_be32(1);
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	}
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	xfs_buf_delwri_queue(bp, buffer_list);
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	xfs_buf_relse(bp);
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}
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	/*
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	 * AG freelist header block
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	 */
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	bp = xfs_growfs_get_hdr_buf(mp,
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			XFS_AG_DADDR(mp, agno, XFS_AGFL_DADDR(mp)),
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			XFS_FSS_TO_BB(mp, 1), 0,
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			&xfs_agfl_buf_ops);
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	if (!bp) {
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		error = -ENOMEM;
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		goto out_error;
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	}
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static void
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xfs_agflblock_init(
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	struct xfs_mount	*mp,
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_agfl		*agfl = XFS_BUF_TO_AGFL(bp);
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	__be32			*agfl_bno;
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	int			bucket;
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	agfl = XFS_BUF_TO_AGFL(bp);
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	if (xfs_sb_version_hascrc(&mp->m_sb)) {
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		agfl->agfl_magicnum = cpu_to_be32(XFS_AGFL_MAGIC);
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		agfl->agfl_seqno = cpu_to_be32(agno);
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		agfl->agfl_seqno = cpu_to_be32(id->agno);
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		uuid_copy(&agfl->agfl_uuid, &mp->m_sb.sb_meta_uuid);
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	}
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	agfl_bno = XFS_BUF_TO_AGFL_BNO(mp, bp);
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	for (bucket = 0; bucket < xfs_agfl_size(mp); bucket++)
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		agfl_bno[bucket] = cpu_to_be32(NULLAGBLOCK);
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}
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	xfs_buf_delwri_queue(bp, buffer_list);
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	xfs_buf_relse(bp);
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static void
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xfs_agiblock_init(
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	struct xfs_mount	*mp,
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	struct xfs_buf		*bp,
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	struct aghdr_init_data	*id)
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{
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	struct xfs_agi		*agi = XFS_BUF_TO_AGI(bp);
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	int			bucket;
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	/*
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	 * AG inode header block
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	 */
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	bp = xfs_growfs_get_hdr_buf(mp,
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			XFS_AG_DADDR(mp, agno, XFS_AGI_DADDR(mp)),
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			XFS_FSS_TO_BB(mp, 1), 0,
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			&xfs_agi_buf_ops);
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	if (!bp) {
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		error = -ENOMEM;
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		goto out_error;
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	}
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	agi = XFS_BUF_TO_AGI(bp);
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	agi->agi_magicnum = cpu_to_be32(XFS_AGI_MAGIC);
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	agi->agi_versionnum = cpu_to_be32(XFS_AGI_VERSION);
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	agi->agi_seqno = cpu_to_be32(agno);
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	agi->agi_length = cpu_to_be32(agsize);
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	agi->agi_seqno = cpu_to_be32(id->agno);
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	agi->agi_length = cpu_to_be32(id->agsize);
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	agi->agi_count = 0;
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	agi->agi_root = cpu_to_be32(XFS_IBT_BLOCK(mp));
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	agi->agi_level = cpu_to_be32(1);
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			@ -196,180 +280,133 @@ xfs_grow_ag_headers(
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	}
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	for (bucket = 0; bucket < XFS_AGI_UNLINKED_BUCKETS; bucket++)
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		agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
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}
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	xfs_buf_delwri_queue(bp, buffer_list);
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static int
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xfs_growfs_init_aghdr(
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	struct xfs_mount	*mp,
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	struct aghdr_init_data	*id,
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	void			(*work)(struct xfs_mount *, struct xfs_buf *,
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					struct aghdr_init_data *),
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	const struct xfs_buf_ops *ops)
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{
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	struct xfs_buf		*bp;
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	bp = xfs_growfs_get_hdr_buf(mp, id->daddr, id->numblks, 0, ops);
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	if (!bp)
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		return -ENOMEM;
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	(*work)(mp, bp, id);
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	xfs_buf_delwri_queue(bp, &id->buffer_list);
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	xfs_buf_relse(bp);
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	return 0;
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}
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	/*
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	 * BNO btree root block
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	 */
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	bp = xfs_growfs_get_hdr_buf(mp,
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			XFS_AGB_TO_DADDR(mp, agno, XFS_BNO_BLOCK(mp)),
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			BTOBB(mp->m_sb.sb_blocksize), 0,
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			&xfs_allocbt_buf_ops);
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/*
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 * Write new AG headers to disk. Non-transactional, but written
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 * synchronously so they are completed prior to the growfs transaction
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 * being logged.
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 */
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static int
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xfs_grow_ag_headers(
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	struct xfs_mount	*mp,
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	struct aghdr_init_data	*id)
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	if (!bp) {
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		error = -ENOMEM;
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{
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	int			error = 0;
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	/* Account for AG free space in new AG */
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	id->nfree += id->agsize - mp->m_ag_prealloc_blocks;
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	/* AG freespace header block */
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	id->daddr = XFS_AG_DADDR(mp, id->agno, XFS_AGF_DADDR(mp));
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	id->numblks = XFS_FSS_TO_BB(mp, 1);
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	error = xfs_growfs_init_aghdr(mp, id, xfs_agfblock_init,
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					&xfs_agf_buf_ops);
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	if (error)
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		goto out_error;
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	}
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	xfs_btree_init_block(mp, bp, XFS_BTNUM_BNO, 0, 1, agno, 0);
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	arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
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	arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
 | 
			
		||||
	arec->ar_blockcount = cpu_to_be32(
 | 
			
		||||
		agsize - be32_to_cpu(arec->ar_startblock));
 | 
			
		||||
 | 
			
		||||
	xfs_buf_delwri_queue(bp, buffer_list);
 | 
			
		||||
	xfs_buf_relse(bp);
 | 
			
		||||
 | 
			
		||||
	/*
 | 
			
		||||
	 * CNT btree root block
 | 
			
		||||
	 */
 | 
			
		||||
	bp = xfs_growfs_get_hdr_buf(mp,
 | 
			
		||||
			XFS_AGB_TO_DADDR(mp, agno, XFS_CNT_BLOCK(mp)),
 | 
			
		||||
			BTOBB(mp->m_sb.sb_blocksize), 0,
 | 
			
		||||
			&xfs_allocbt_buf_ops);
 | 
			
		||||
	if (!bp) {
 | 
			
		||||
		error = -ENOMEM;
 | 
			
		||||
	/* AG freelist header block */
 | 
			
		||||
	id->daddr = XFS_AG_DADDR(mp, id->agno, XFS_AGFL_DADDR(mp));
 | 
			
		||||
	id->numblks = XFS_FSS_TO_BB(mp, 1);
 | 
			
		||||
	error = xfs_growfs_init_aghdr(mp, id, xfs_agflblock_init,
 | 
			
		||||
					&xfs_agfl_buf_ops);
 | 
			
		||||
	if (error)
 | 
			
		||||
		goto out_error;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	xfs_btree_init_block(mp, bp, XFS_BTNUM_CNT, 0, 1, agno, 0);
 | 
			
		||||
	/* AG inode header block */
 | 
			
		||||
	id->daddr = XFS_AG_DADDR(mp, id->agno, XFS_AGI_DADDR(mp));
 | 
			
		||||
	id->numblks = XFS_FSS_TO_BB(mp, 1);
 | 
			
		||||
	error = xfs_growfs_init_aghdr(mp, id, xfs_agiblock_init,
 | 
			
		||||
					&xfs_agi_buf_ops);
 | 
			
		||||
	if (error)
 | 
			
		||||
		goto out_error;
 | 
			
		||||
 | 
			
		||||
	arec = XFS_ALLOC_REC_ADDR(mp, XFS_BUF_TO_BLOCK(bp), 1);
 | 
			
		||||
	arec->ar_startblock = cpu_to_be32(mp->m_ag_prealloc_blocks);
 | 
			
		||||
	arec->ar_blockcount = cpu_to_be32(
 | 
			
		||||
		agsize - be32_to_cpu(arec->ar_startblock));
 | 
			
		||||
	*nfree += be32_to_cpu(arec->ar_blockcount);
 | 
			
		||||
 | 
			
		||||
	xfs_buf_delwri_queue(bp, buffer_list);
 | 
			
		||||
	xfs_buf_relse(bp);
 | 
			
		||||
	/* BNO btree root block */
 | 
			
		||||
	id->daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_BNO_BLOCK(mp));
 | 
			
		||||
	id->numblks = BTOBB(mp->m_sb.sb_blocksize);
 | 
			
		||||
	error = xfs_growfs_init_aghdr(mp, id, xfs_bnoroot_init,
 | 
			
		||||
				   &xfs_allocbt_buf_ops);
 | 
			
		||||
	if (error)
 | 
			
		||||
		goto out_error;
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
	/* CNT btree root block */
 | 
			
		||||
	id->daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_CNT_BLOCK(mp));
 | 
			
		||||
	id->numblks = BTOBB(mp->m_sb.sb_blocksize);
 | 
			
		||||
	error = xfs_growfs_init_aghdr(mp, id, xfs_cntroot_init,
 | 
			
		||||
				   &xfs_allocbt_buf_ops);
 | 
			
		||||
	if (error)
 | 
			
		||||
		goto out_error;
 | 
			
		||||
 | 
			
		||||
	/* RMAP btree root block */
 | 
			
		||||
	if (xfs_sb_version_hasrmapbt(&mp->m_sb)) {
 | 
			
		||||
		struct xfs_rmap_rec	*rrec;
 | 
			
		||||
		struct xfs_btree_block	*block;
 | 
			
		||||
 | 
			
		||||
		bp = xfs_growfs_get_hdr_buf(mp,
 | 
			
		||||
			XFS_AGB_TO_DADDR(mp, agno, XFS_RMAP_BLOCK(mp)),
 | 
			
		||||
			BTOBB(mp->m_sb.sb_blocksize), 0,
 | 
			
		||||
			&xfs_rmapbt_buf_ops);
 | 
			
		||||
		if (!bp) {
 | 
			
		||||
			error = -ENOMEM;
 | 
			
		||||
		id->daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_RMAP_BLOCK(mp));
 | 
			
		||||
		id->numblks = BTOBB(mp->m_sb.sb_blocksize);
 | 
			
		||||
		error = xfs_growfs_init_aghdr(mp, id, xfs_rmaproot_init,
 | 
			
		||||
					   &xfs_rmapbt_buf_ops);
 | 
			
		||||
		if (error)
 | 
			
		||||
			goto out_error;
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		xfs_btree_init_block(mp, bp, XFS_BTNUM_RMAP, 0, 0,
 | 
			
		||||
					agno, 0);
 | 
			
		||||
		block = XFS_BUF_TO_BLOCK(bp);
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
		/*
 | 
			
		||||
		 * mark the AG header regions as static metadata The BNO
 | 
			
		||||
		 * btree block is the first block after the headers, so
 | 
			
		||||
		 * it's location defines the size of region the static
 | 
			
		||||
		 * metadata consumes.
 | 
			
		||||
		 *
 | 
			
		||||
		 * Note: unlike mkfs, we never have to account for log
 | 
			
		||||
		 * space when growing the data regions
 | 
			
		||||
		 */
 | 
			
		||||
		rrec = XFS_RMAP_REC_ADDR(block, 1);
 | 
			
		||||
		rrec->rm_startblock = 0;
 | 
			
		||||
		rrec->rm_blockcount = cpu_to_be32(XFS_BNO_BLOCK(mp));
 | 
			
		||||
		rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_FS);
 | 
			
		||||
		rrec->rm_offset = 0;
 | 
			
		||||
		be16_add_cpu(&block->bb_numrecs, 1);
 | 
			
		||||
 | 
			
		||||
		/* account freespace btree root blocks */
 | 
			
		||||
		rrec = XFS_RMAP_REC_ADDR(block, 2);
 | 
			
		||||
		rrec->rm_startblock = cpu_to_be32(XFS_BNO_BLOCK(mp));
 | 
			
		||||
		rrec->rm_blockcount = cpu_to_be32(2);
 | 
			
		||||
		rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_AG);
 | 
			
		||||
		rrec->rm_offset = 0;
 | 
			
		||||
		be16_add_cpu(&block->bb_numrecs, 1);
 | 
			
		||||
 | 
			
		||||
		/* account inode btree root blocks */
 | 
			
		||||
		rrec = XFS_RMAP_REC_ADDR(block, 3);
 | 
			
		||||
		rrec->rm_startblock = cpu_to_be32(XFS_IBT_BLOCK(mp));
 | 
			
		||||
		rrec->rm_blockcount = cpu_to_be32(XFS_RMAP_BLOCK(mp) -
 | 
			
		||||
						XFS_IBT_BLOCK(mp));
 | 
			
		||||
		rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_INOBT);
 | 
			
		||||
		rrec->rm_offset = 0;
 | 
			
		||||
		be16_add_cpu(&block->bb_numrecs, 1);
 | 
			
		||||
 | 
			
		||||
		/* account for rmap btree root */
 | 
			
		||||
		rrec = XFS_RMAP_REC_ADDR(block, 4);
 | 
			
		||||
		rrec->rm_startblock = cpu_to_be32(XFS_RMAP_BLOCK(mp));
 | 
			
		||||
		rrec->rm_blockcount = cpu_to_be32(1);
 | 
			
		||||
		rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_AG);
 | 
			
		||||
		rrec->rm_offset = 0;
 | 
			
		||||
		be16_add_cpu(&block->bb_numrecs, 1);
 | 
			
		||||
 | 
			
		||||
		/* account for refc btree root */
 | 
			
		||||
		if (xfs_sb_version_hasreflink(&mp->m_sb)) {
 | 
			
		||||
			rrec = XFS_RMAP_REC_ADDR(block, 5);
 | 
			
		||||
			rrec->rm_startblock = cpu_to_be32(xfs_refc_block(mp));
 | 
			
		||||
			rrec->rm_blockcount = cpu_to_be32(1);
 | 
			
		||||
			rrec->rm_owner = cpu_to_be64(XFS_RMAP_OWN_REFC);
 | 
			
		||||
			rrec->rm_offset = 0;
 | 
			
		||||
			be16_add_cpu(&block->bb_numrecs, 1);
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		xfs_buf_delwri_queue(bp, buffer_list);
 | 
			
		||||
		xfs_buf_relse(bp);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/*
 | 
			
		||||
	 * INO btree root block
 | 
			
		||||
	 */
 | 
			
		||||
	bp = xfs_growfs_get_hdr_buf(mp,
 | 
			
		||||
			XFS_AGB_TO_DADDR(mp, agno, XFS_IBT_BLOCK(mp)),
 | 
			
		||||
			BTOBB(mp->m_sb.sb_blocksize), 0,
 | 
			
		||||
			&xfs_inobt_buf_ops);
 | 
			
		||||
	if (!bp) {
 | 
			
		||||
		error = -ENOMEM;
 | 
			
		||||
	/* INO btree root block */
 | 
			
		||||
	id->daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_IBT_BLOCK(mp));
 | 
			
		||||
	id->numblks = BTOBB(mp->m_sb.sb_blocksize);
 | 
			
		||||
	id->type = XFS_BTNUM_INO;
 | 
			
		||||
	error = xfs_growfs_init_aghdr(mp, id, xfs_btroot_init,
 | 
			
		||||
				   &xfs_inobt_buf_ops);
 | 
			
		||||
	if (error)
 | 
			
		||||
		goto out_error;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	xfs_btree_init_block(mp, bp, XFS_BTNUM_INO , 0, 0, agno, 0);
 | 
			
		||||
	xfs_buf_delwri_queue(bp, buffer_list);
 | 
			
		||||
	xfs_buf_relse(bp);
 | 
			
		||||
 | 
			
		||||
	/*
 | 
			
		||||
	 * FINO btree root block
 | 
			
		||||
	 */
 | 
			
		||||
	if (xfs_sb_version_hasfinobt(&mp->m_sb)) {
 | 
			
		||||
		bp = xfs_growfs_get_hdr_buf(mp,
 | 
			
		||||
			XFS_AGB_TO_DADDR(mp, agno, XFS_FIBT_BLOCK(mp)),
 | 
			
		||||
			BTOBB(mp->m_sb.sb_blocksize), 0,
 | 
			
		||||
			&xfs_inobt_buf_ops);
 | 
			
		||||
		if (!bp) {
 | 
			
		||||
			error = -ENOMEM;
 | 
			
		||||
		id->daddr = XFS_AGB_TO_DADDR(mp, id->agno, XFS_FIBT_BLOCK(mp));
 | 
			
		||||
		id->numblks = BTOBB(mp->m_sb.sb_blocksize);
 | 
			
		||||
		id->type = XFS_BTNUM_FINO;
 | 
			
		||||
		error = xfs_growfs_init_aghdr(mp, id, xfs_btroot_init,
 | 
			
		||||
					   &xfs_inobt_buf_ops);
 | 
			
		||||
		if (error)
 | 
			
		||||
			goto out_error;
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		xfs_btree_init_block(mp, bp, XFS_BTNUM_FINO, 0, 0, agno, 0);
 | 
			
		||||
		xfs_buf_delwri_queue(bp, buffer_list);
 | 
			
		||||
		xfs_buf_relse(bp);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	/*
 | 
			
		||||
	 * refcount btree root block
 | 
			
		||||
	 */
 | 
			
		||||
	if (xfs_sb_version_hasreflink(&mp->m_sb)) {
 | 
			
		||||
		bp = xfs_growfs_get_hdr_buf(mp,
 | 
			
		||||
			XFS_AGB_TO_DADDR(mp, agno, xfs_refc_block(mp)),
 | 
			
		||||
			BTOBB(mp->m_sb.sb_blocksize), 0,
 | 
			
		||||
			&xfs_refcountbt_buf_ops);
 | 
			
		||||
		if (!bp) {
 | 
			
		||||
			error = -ENOMEM;
 | 
			
		||||
		id->daddr = XFS_AGB_TO_DADDR(mp, id->agno, xfs_refc_block(mp));
 | 
			
		||||
		id->numblks = BTOBB(mp->m_sb.sb_blocksize);
 | 
			
		||||
		id->type = XFS_BTNUM_REFC;
 | 
			
		||||
		error = xfs_growfs_init_aghdr(mp, id, xfs_btroot_init,
 | 
			
		||||
					   &xfs_refcountbt_buf_ops);
 | 
			
		||||
		if (error)
 | 
			
		||||
			goto out_error;
 | 
			
		||||
		}
 | 
			
		||||
 | 
			
		||||
		xfs_btree_init_block(mp, bp, XFS_BTNUM_REFC, 0, 0, agno, 0);
 | 
			
		||||
		xfs_buf_delwri_queue(bp, buffer_list);
 | 
			
		||||
		xfs_buf_relse(bp);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
out_error:
 | 
			
		||||
| 
						 | 
				
			
			@ -384,7 +421,6 @@ xfs_growfs_data_private(
 | 
			
		|||
	xfs_agf_t		*agf;
 | 
			
		||||
	xfs_agi_t		*agi;
 | 
			
		||||
	xfs_agnumber_t		agno;
 | 
			
		||||
	xfs_extlen_t		agsize;
 | 
			
		||||
	xfs_buf_t		*bp;
 | 
			
		||||
	int			dpct;
 | 
			
		||||
	int			error, saved_error = 0;
 | 
			
		||||
| 
						 | 
				
			
			@ -392,11 +428,11 @@ xfs_growfs_data_private(
 | 
			
		|||
	xfs_agnumber_t		nagimax = 0;
 | 
			
		||||
	xfs_rfsblock_t		nb, nb_mod;
 | 
			
		||||
	xfs_rfsblock_t		new;
 | 
			
		||||
	xfs_rfsblock_t		nfree;
 | 
			
		||||
	xfs_agnumber_t		oagcount;
 | 
			
		||||
	int			pct;
 | 
			
		||||
	xfs_trans_t		*tp;
 | 
			
		||||
	LIST_HEAD		(buffer_list);
 | 
			
		||||
	struct aghdr_init_data	id = {};
 | 
			
		||||
 | 
			
		||||
	nb = in->newblocks;
 | 
			
		||||
	pct = in->imaxpct;
 | 
			
		||||
| 
						 | 
				
			
			@ -448,27 +484,28 @@ xfs_growfs_data_private(
 | 
			
		|||
	 * list to write, we can cancel the entire list without having written
 | 
			
		||||
	 * anything.
 | 
			
		||||
	 */
 | 
			
		||||
	nfree = 0;
 | 
			
		||||
	for (agno = nagcount - 1; agno >= oagcount; agno--, new -= agsize) {
 | 
			
		||||
	INIT_LIST_HEAD(&id.buffer_list);
 | 
			
		||||
	for (id.agno = nagcount - 1;
 | 
			
		||||
	     id.agno >= oagcount;
 | 
			
		||||
	     id.agno--, new -= id.agsize) {
 | 
			
		||||
 | 
			
		||||
		if (agno == nagcount - 1)
 | 
			
		||||
			agsize = nb -
 | 
			
		||||
				(agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
 | 
			
		||||
		if (id.agno == nagcount - 1)
 | 
			
		||||
			id.agsize = nb -
 | 
			
		||||
				(id.agno * (xfs_rfsblock_t)mp->m_sb.sb_agblocks);
 | 
			
		||||
		else
 | 
			
		||||
			agsize = mp->m_sb.sb_agblocks;
 | 
			
		||||
			id.agsize = mp->m_sb.sb_agblocks;
 | 
			
		||||
 | 
			
		||||
		error = xfs_grow_ag_headers(mp, agno, agsize, &nfree,
 | 
			
		||||
					    &buffer_list);
 | 
			
		||||
		error = xfs_grow_ag_headers(mp, &id);
 | 
			
		||||
		if (error) {
 | 
			
		||||
			xfs_buf_delwri_cancel(&buffer_list);
 | 
			
		||||
			xfs_buf_delwri_cancel(&id.buffer_list);
 | 
			
		||||
			goto error0;
 | 
			
		||||
		}
 | 
			
		||||
	}
 | 
			
		||||
	error = xfs_buf_delwri_submit(&buffer_list);
 | 
			
		||||
	error = xfs_buf_delwri_submit(&id.buffer_list);
 | 
			
		||||
	if (error)
 | 
			
		||||
		goto error0;
 | 
			
		||||
 | 
			
		||||
	xfs_trans_agblocks_delta(tp, nfree);
 | 
			
		||||
	xfs_trans_agblocks_delta(tp, id.nfree);
 | 
			
		||||
 | 
			
		||||
	/*
 | 
			
		||||
	 * There are new blocks in the old last a.g.
 | 
			
		||||
| 
						 | 
				
			
			@ -479,7 +516,7 @@ xfs_growfs_data_private(
 | 
			
		|||
		/*
 | 
			
		||||
		 * Change the agi length.
 | 
			
		||||
		 */
 | 
			
		||||
		error = xfs_ialloc_read_agi(mp, tp, agno, &bp);
 | 
			
		||||
		error = xfs_ialloc_read_agi(mp, tp, id.agno, &bp);
 | 
			
		||||
		if (error) {
 | 
			
		||||
			goto error0;
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -492,7 +529,7 @@ xfs_growfs_data_private(
 | 
			
		|||
		/*
 | 
			
		||||
		 * Change agf length.
 | 
			
		||||
		 */
 | 
			
		||||
		error = xfs_alloc_read_agf(mp, tp, agno, 0, &bp);
 | 
			
		||||
		error = xfs_alloc_read_agf(mp, tp, id.agno, 0, &bp);
 | 
			
		||||
		if (error) {
 | 
			
		||||
			goto error0;
 | 
			
		||||
		}
 | 
			
		||||
| 
						 | 
				
			
			@ -511,13 +548,13 @@ xfs_growfs_data_private(
 | 
			
		|||
		 * this doesn't actually exist in the rmap btree.
 | 
			
		||||
		 */
 | 
			
		||||
		xfs_rmap_ag_owner(&oinfo, XFS_RMAP_OWN_NULL);
 | 
			
		||||
		error = xfs_rmap_free(tp, bp, agno,
 | 
			
		||||
		error = xfs_rmap_free(tp, bp, id.agno,
 | 
			
		||||
				be32_to_cpu(agf->agf_length) - new,
 | 
			
		||||
				new, &oinfo);
 | 
			
		||||
		if (error)
 | 
			
		||||
			goto error0;
 | 
			
		||||
		error = xfs_free_extent(tp,
 | 
			
		||||
				XFS_AGB_TO_FSB(mp, agno,
 | 
			
		||||
				XFS_AGB_TO_FSB(mp, id.agno,
 | 
			
		||||
					be32_to_cpu(agf->agf_length) - new),
 | 
			
		||||
				new, &oinfo, XFS_AG_RESV_NONE);
 | 
			
		||||
		if (error)
 | 
			
		||||
| 
						 | 
				
			
			@ -534,8 +571,8 @@ xfs_growfs_data_private(
 | 
			
		|||
	if (nb > mp->m_sb.sb_dblocks)
 | 
			
		||||
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_DBLOCKS,
 | 
			
		||||
				 nb - mp->m_sb.sb_dblocks);
 | 
			
		||||
	if (nfree)
 | 
			
		||||
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, nfree);
 | 
			
		||||
	if (id.nfree)
 | 
			
		||||
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, id.nfree);
 | 
			
		||||
	if (dpct)
 | 
			
		||||
		xfs_trans_mod_sb(tp, XFS_TRANS_SB_IMAXPCT, dpct);
 | 
			
		||||
	xfs_trans_set_sync(tp);
 | 
			
		||||
| 
						 | 
				
			
			@ -562,7 +599,7 @@ xfs_growfs_data_private(
 | 
			
		|||
	if (new) {
 | 
			
		||||
		struct xfs_perag	*pag;
 | 
			
		||||
 | 
			
		||||
		pag = xfs_perag_get(mp, agno);
 | 
			
		||||
		pag = xfs_perag_get(mp, id.agno);
 | 
			
		||||
		error = xfs_ag_resv_free(pag);
 | 
			
		||||
		xfs_perag_put(pag);
 | 
			
		||||
		if (error)
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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		Reference in a new issue