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xfs: refactor free space btree record initialization

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Refactor the code that populates the free space btrees of a new AG so
that we can avoid code duplication once things start getting
complicated.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Collins <allison.henderson@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2019-06-28 19:30:21 -07:00
parent 7e36a3a63d
commit 8d90857cff
1 changed files with 17 additions and 12 deletions
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29
fs/xfs/libxfs/xfs_ag.c
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@ -56,6 +56,21 @@ xfs_btroot_init(
xfs_btree_init_block(mp, bp, id->type, 0, 0, id->agno);
}
/* Finish initializing a free space btree. */
static void
xfs_freesp_init_recs(
struct xfs_mount *mp,
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
struct xfs_alloc_rec *arec;
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(id->agsize -
be32_to_cpu(arec->ar_startblock));
}
/*
* Alloc btree root block init functions
*/
@ -65,13 +80,8 @@ xfs_bnoroot_init(
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
struct xfs_alloc_rec *arec;
xfs_btree_init_block(mp, bp, XFS_BTNUM_BNO, 0, 1, id->agno);
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(id->agsize -
be32_to_cpu(arec->ar_startblock));
xfs_freesp_init_recs(mp, bp, id);
}
static void
@ -80,13 +90,8 @@ xfs_cntroot_init(
struct xfs_buf *bp,
struct aghdr_init_data *id)
{
struct xfs_alloc_rec *arec;
xfs_btree_init_block(mp, bp, XFS_BTNUM_CNT, 0, 1, id->agno);
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(id->agsize -
be32_to_cpu(arec->ar_startblock));
xfs_freesp_init_recs(mp, bp, id);
}
/*