diff options
Diffstat (limited to '')
| -rw-r--r-- | fs/xfs/libxfs/xfs_rmap_btree.c | 65 |
1 files changed, 24 insertions, 41 deletions
diff --git a/fs/xfs/libxfs/xfs_rmap_btree.c b/fs/xfs/libxfs/xfs_rmap_btree.c index 62efcfaa4173..b1ecc061fdc9 100644 --- a/fs/xfs/libxfs/xfs_rmap_btree.c +++ b/fs/xfs/libxfs/xfs_rmap_btree.c @@ -16,6 +16,7 @@ #include "xfs_btree_staging.h" #include "xfs_rmap.h" #include "xfs_rmap_btree.h" +#include "xfs_health.h" #include "xfs_trace.h" #include "xfs_error.h" #include "xfs_extent_busy.h" @@ -65,13 +66,12 @@ xfs_rmapbt_set_root( { struct xfs_buf *agbp = cur->bc_ag.agbp; struct xfs_agf *agf = agbp->b_addr; - int btnum = cur->bc_btnum; ASSERT(ptr->s != 0); - agf->agf_roots[btnum] = ptr->s; - be32_add_cpu(&agf->agf_levels[btnum], inc); - cur->bc_ag.pag->pagf_levels[btnum] += inc; + agf->agf_rmap_root = ptr->s; + be32_add_cpu(&agf->agf_rmap_level, inc); + cur->bc_ag.pag->pagf_rmap_level += inc; xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_ROOTS | XFS_AGF_LEVELS); } @@ -222,7 +222,7 @@ xfs_rmapbt_init_ptr_from_cur( ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno)); - ptr->s = agf->agf_roots[cur->bc_btnum]; + ptr->s = agf->agf_rmap_root; } /* @@ -342,7 +342,7 @@ xfs_rmapbt_verify( level = be16_to_cpu(block->bb_level); if (pag && xfs_perag_initialised_agf(pag)) { - if (level >= pag->pagf_levels[XFS_BTNUM_RMAPi]) + if (level >= pag->pagf_rmap_level) return __this_address; } else if (level >= mp->m_rmap_maxlevels) return __this_address; @@ -473,15 +473,18 @@ xfs_rmapbt_keys_contiguous( } const struct xfs_btree_ops xfs_rmapbt_ops = { + .name = "rmap", .type = XFS_BTREE_TYPE_AG, .geom_flags = XFS_BTGEO_OVERLAPPING, .rec_len = sizeof(struct xfs_rmap_rec), + /* Overlapping btree; 2 keys per pointer. */ .key_len = 2 * sizeof(struct xfs_rmap_key), .ptr_len = XFS_BTREE_SHORT_PTR_LEN, .lru_refs = XFS_RMAP_BTREE_REF, .statoff = XFS_STATS_CALC_INDEX(xs_rmap_2), + .sick_mask = XFS_SICK_AG_RMAPBT, .dup_cursor = xfs_rmapbt_dup_cursor, .set_root = xfs_rmapbt_set_root, @@ -501,22 +504,11 @@ 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; - - /* Overlapping btree; 2 keys per pointer. */ - 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, @@ -524,26 +516,17 @@ 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_rmapbt_ops, + mp->m_rmap_maxlevels, xfs_rmapbt_cur_cache); + cur->bc_ag.pag = xfs_perag_hold(pag); cur->bc_ag.agbp = agbp; - return cur; -} + if (agbp) { + struct xfs_agf *agf = agbp->b_addr; -/* Create a new reverse mapping btree cursor with a fake root for staging. */ -struct xfs_btree_cur * -xfs_rmapbt_stage_cursor( - struct xfs_mount *mp, - struct xbtree_afakeroot *afake, - struct xfs_perag *pag) -{ - struct xfs_btree_cur *cur; - - cur = xfs_rmapbt_init_common(mp, NULL, pag); - xfs_btree_stage_afakeroot(cur, afake); + cur->bc_nlevels = be32_to_cpu(agf->agf_rmap_level); + } return cur; } @@ -562,12 +545,12 @@ xfs_rmapbt_commit_staged_btree( ASSERT(cur->bc_flags & XFS_BTREE_STAGING); - agf->agf_roots[cur->bc_btnum] = cpu_to_be32(afake->af_root); - agf->agf_levels[cur->bc_btnum] = cpu_to_be32(afake->af_levels); + agf->agf_rmap_root = cpu_to_be32(afake->af_root); + agf->agf_rmap_level = cpu_to_be32(afake->af_levels); agf->agf_rmap_blocks = cpu_to_be32(afake->af_blocks); xfs_alloc_log_agf(tp, agbp, XFS_AGF_ROOTS | XFS_AGF_LEVELS | XFS_AGF_RMAP_BLOCKS); - xfs_btree_commit_afakeroot(cur, tp, agbp, &xfs_rmapbt_ops); + xfs_btree_commit_afakeroot(cur, tp, agbp); } /* Calculate number of records in a reverse mapping btree block. */ |