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xfs: fold xfs_rmapbt_init_common into xfs_rmapbt_init_cursor

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Make the levels initialization in xfs_rmapbt_init_cursor conditional
and merge the two helpers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Darrick J. Wong <djwong@kernel.org>
This commit is contained in:
Christoph Hellwig
2024-02-22 12:39:41 -08:00
committed by Darrick J. Wong
parent a5c2194406
commit c49a4b2f0e
1 changed files with 14 additions and 19 deletions
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33
fs/xfs/libxfs/xfs_rmap_btree.c
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@@ -502,21 +502,11 @@ const struct xfs_btree_ops xfs_rmapbt_ops = {
.keys_contiguous = xfs_rmapbt_keys_contiguous,
};
static struct xfs_btree_cur *
xfs_rmapbt_init_common(
struct xfs_mount *mp,
struct xfs_trans *tp,
struct xfs_perag *pag)
{
struct xfs_btree_cur *cur;
cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP, &xfs_rmapbt_ops,
mp->m_rmap_maxlevels, xfs_rmapbt_cur_cache);
cur->bc_ag.pag = xfs_perag_hold(pag);
return cur;
}
/* Create a new reverse mapping btree cursor. */
/*
* Create a new reverse mapping btree cursor.
*
* For staging cursors tp and agbp are NULL.
*/
struct xfs_btree_cur *
xfs_rmapbt_init_cursor(
struct xfs_mount *mp,
@@ -524,12 +514,17 @@ xfs_rmapbt_init_cursor(
struct xfs_buf *agbp,
struct xfs_perag *pag)
{
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;
cur = xfs_rmapbt_init_common(mp, tp, pag);
cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]);
cur = xfs_btree_alloc_cursor(mp, tp, XFS_BTNUM_RMAP, &xfs_rmapbt_ops,
mp->m_rmap_maxlevels, xfs_rmapbt_cur_cache);
cur->bc_ag.pag = xfs_perag_hold(pag);
cur->bc_ag.agbp = agbp;
if (agbp) {
struct xfs_agf *agf = agbp->b_addr;
cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAP]);
}
return cur;
}
@@ -542,7 +537,7 @@ xfs_rmapbt_stage_cursor(
{
struct xfs_btree_cur *cur;
cur = xfs_rmapbt_init_common(mp, NULL, pag);
cur = xfs_rmapbt_init_cursor(mp, NULL, NULL, pag);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}