[PATCH 14/22] xfs: convert allocbt cursors to use perags

Dave Chinner
2021-05-06T07:21:02Z

From: Dave Chinner <dchinner@redhat.com>

Signed-off-by: Dave Chinner <dchinner@redhat.com>
---
fs/xfs/libxfs/xfs_alloc.c | 25 ++++++++++---------------
fs/xfs/libxfs/xfs_alloc_btree.c | 26 ++++++++++----------------
fs/xfs/libxfs/xfs_alloc_btree.h | 8 ++++----
fs/xfs/scrub/agheader_repair.c | 8 ++++----
fs/xfs/scrub/common.c | 4 ++--
fs/xfs/xfs_discard.c | 2 +-
fs/xfs/xfs_fsmap.c | 2 +-
7 files changed, 32 insertions(+), 43 deletions(-)

diff --git a/fs/xfs/libxfs/xfs_alloc.c b/fs/xfs/libxfs/xfs_alloc.c
index 10747cc4d8f6..c99a80286efa 100644
--- a/fs/xfs/libxfs/xfs_alloc.c
+++ b/fs/xfs/libxfs/xfs_alloc.c
@@ -776,8 +776,7 @@ xfs_alloc_cur_setup(
*/
if (!acur->cnt)
acur->cnt = xfs_allocbt_init_cursor(args->mp, args->tp,
- args->agbp, args->agno,
- args->pag, XFS_BTNUM_CNT);
+ args->agbp, args->pag, XFS_BTNUM_CNT);
error = xfs_alloc_lookup_ge(acur->cnt, 0, args->maxlen, &i);
if (error)
return error;
@@ -787,12 +786,10 @@ xfs_alloc_cur_setup(
*/
if (!acur->bnolt)
acur->bnolt = xfs_allocbt_init_cursor(args->mp, args->tp,
- args->agbp, args->agno,
- args->pag, XFS_BTNUM_BNO);
+ args->agbp, args->pag, XFS_BTNUM_BNO);
if (!acur->bnogt)
acur->bnogt = xfs_allocbt_init_cursor(args->mp, args->tp,
- args->agbp, args->agno,
- args->pag, XFS_BTNUM_BNO);
+ args->agbp, args->pag, XFS_BTNUM_BNO);
return i == 1 ? 0 : -ENOSPC;
}

@@ -1220,7 +1217,7 @@ xfs_alloc_ag_vextent_exact(
* Allocate/initialize a cursor for the by-number freespace btree.
*/
bno_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
- args->agno, args->pag, XFS_BTNUM_BNO);
+ args->pag, XFS_BTNUM_BNO);

/*
* Lookup bno and minlen in the btree (minlen is irrelevant, really).
@@ -1280,7 +1277,7 @@ xfs_alloc_ag_vextent_exact(
* Allocate/initialize a cursor for the by-size btree.
*/
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
- args->agno, args->pag, XFS_BTNUM_CNT);
+ args->pag, XFS_BTNUM_CNT);
ASSERT(args->agbno + args->len <= be32_to_cpu(agf->agf_length));
error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen, args->agbno,
args->len, XFSA_FIXUP_BNO_OK);
@@ -1677,7 +1674,7 @@ xfs_alloc_ag_vextent_size(
* Allocate and initialize a cursor for the by-size btree.
*/
cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
- args->agno, args->pag, XFS_BTNUM_CNT);
+ args->pag, XFS_BTNUM_CNT);
bno_cur = NULL;
busy = false;

@@ -1840,7 +1837,7 @@ xfs_alloc_ag_vextent_size(
* Allocate and initialize a cursor for the by-block tree.
*/
bno_cur = xfs_allocbt_init_cursor(args->mp, args->tp, args->agbp,
- args->agno, args->pag, XFS_BTNUM_BNO);
+ args->pag, XFS_BTNUM_BNO);
if ((error = xfs_alloc_fixup_trees(cnt_cur, bno_cur, fbno, flen,
rbno, rlen, XFSA_FIXUP_CNT_OK)))
goto error0;
@@ -1913,8 +1910,7 @@ xfs_free_ag_extent(
/*
* Allocate and initialize a cursor for the by-block btree.
*/
- bno_cur = xfs_allocbt_init_cursor(mp, tp, agbp, agno,
- NULL, XFS_BTNUM_BNO);
+ bno_cur = xfs_allocbt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_BNO);
/*
* Look for a neighboring block on the left (lower block numbers)
* that is contiguous with this space.
@@ -1984,8 +1980,7 @@ xfs_free_ag_extent(
/*
* Now allocate and initialize a cursor for the by-size tree.
*/
- cnt_cur = xfs_allocbt_init_cursor(mp, tp, agbp, agno,
- NULL, XFS_BTNUM_CNT);
+ cnt_cur = xfs_allocbt_init_cursor(mp, tp, agbp, pag, XFS_BTNUM_CNT);
/*
* Have both left and right contiguous neighbors.
* Merge all three into a single free block.
@@ -2496,7 +2491,7 @@ xfs_exact_minlen_extent_available(
int error = 0;

cnt_cur = xfs_allocbt_init_cursor(args->mp, args->tp, agbp,
- args->agno, args->pag, XFS_BTNUM_CNT);
+ args->pag, XFS_BTNUM_CNT);
error = xfs_alloc_lookup_ge(cnt_cur, 0, args->minlen, stat);
if (error)
goto out;
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.c b/fs/xfs/libxfs/xfs_alloc_btree.c
index a52ab25bbf0b..0c2e4cff4ee3 100644
--- a/fs/xfs/libxfs/xfs_alloc_btree.c
+++ b/fs/xfs/libxfs/xfs_alloc_btree.c
@@ -26,8 +26,7 @@ xfs_allocbt_dup_cursor(
struct xfs_btree_cur *cur)
{
return xfs_allocbt_init_cursor(cur->bc_mp, cur->bc_tp,
- cur->bc_ag.agbp, cur->bc_ag.agno,
- cur->bc_ag.pag, cur->bc_btnum);
+ cur->bc_ag.agbp, cur->bc_ag.pag, cur->bc_btnum);
}

STATIC void
@@ -39,13 +38,12 @@ xfs_allocbt_set_root(
struct xfs_buf *agbp = cur->bc_ag.agbp;
struct xfs_agf *agf = agbp->b_addr;
int btnum = cur->bc_btnum;
- struct xfs_perag *pag = agbp->b_pag;

ASSERT(ptr->s != 0);

agf->agf_roots[btnum] = ptr->s;
be32_add_cpu(&agf->agf_levels[btnum], inc);
- pag->pagf_levels[btnum] += inc;
+ cur->bc_ag.pag->pagf_levels[btnum] += inc;

xfs_alloc_log_agf(cur->bc_tp, agbp, XFS_AGF_ROOTS | XFS_AGF_LEVELS);
}
@@ -224,7 +222,7 @@ xfs_allocbt_init_ptr_from_cur(
{
struct xfs_agf *agf = cur->bc_ag.agbp->b_addr;

- ASSERT(cur->bc_ag.agno == be32_to_cpu(agf->agf_seqno));
+ ASSERT(cur->bc_ag.pag->pag_agno == be32_to_cpu(agf->agf_seqno));

ptr->s = agf->agf_roots[cur->bc_btnum];
}
@@ -472,7 +470,6 @@ STATIC struct xfs_btree_cur *
xfs_allocbt_init_common(
struct xfs_mount *mp,
struct xfs_trans *tp,
- xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum)
{
@@ -486,6 +483,7 @@ xfs_allocbt_init_common(
cur->bc_mp = mp;
cur->bc_btnum = btnum;
cur->bc_blocklog = mp->m_sb.sb_blocklog;
+ cur->bc_ag.abt.active = false;

if (btnum == XFS_BTNUM_CNT) {
cur->bc_ops = &xfs_cntbt_ops;
@@ -496,13 +494,10 @@ xfs_allocbt_init_common(
cur->bc_statoff = XFS_STATS_CALC_INDEX(xs_abtb_2);
}

- cur->bc_ag.agno = agno;
- cur->bc_ag.abt.active = false;
- if (pag) {
- /* take a reference for the cursor */
- atomic_inc(&pag->pag_ref);
- }
+ /* take a reference for the cursor */
+ atomic_inc(&pag->pag_ref);
cur->bc_ag.pag = pag;
+ cur->bc_ag.agno = pag->pag_agno;

if (xfs_sb_version_hascrc(&mp->m_sb))
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
@@ -518,14 +513,13 @@ xfs_allocbt_init_cursor(
struct xfs_mount *mp, /* file system mount point */
struct xfs_trans *tp, /* transaction pointer */
struct xfs_buf *agbp, /* buffer for agf structure */
- xfs_agnumber_t agno, /* allocation group number */
struct xfs_perag *pag,
xfs_btnum_t btnum) /* btree identifier */
{
struct xfs_agf *agf = agbp->b_addr;
struct xfs_btree_cur *cur;

- cur = xfs_allocbt_init_common(mp, tp, agno, pag, btnum);
+ cur = xfs_allocbt_init_common(mp, tp, pag, btnum);
if (btnum == XFS_BTNUM_CNT)
cur->bc_nlevels = be32_to_cpu(agf->agf_levels[XFS_BTNUM_CNT]);
else
@@ -541,12 +535,12 @@ struct xfs_btree_cur *
xfs_allocbt_stage_cursor(
struct xfs_mount *mp,
struct xbtree_afakeroot *afake,
- xfs_agnumber_t agno,
+ struct xfs_perag *pag,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;

- cur = xfs_allocbt_init_common(mp, NULL, agno, NULL, btnum);
+ cur = xfs_allocbt_init_common(mp, NULL, pag, btnum);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}
diff --git a/fs/xfs/libxfs/xfs_alloc_btree.h b/fs/xfs/libxfs/xfs_alloc_btree.h
index a10cedba18d8..9eb4c667a6b8 100644
--- a/fs/xfs/libxfs/xfs_alloc_btree.h
+++ b/fs/xfs/libxfs/xfs_alloc_btree.h
@@ -47,11 +47,11 @@ struct xbtree_afakeroot;
(maxrecs) * sizeof(xfs_alloc_key_t) + \
((index) - 1) * sizeof(xfs_alloc_ptr_t)))

-extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *,
- struct xfs_trans *, struct xfs_buf *,
- xfs_agnumber_t, struct xfs_perag *pag, xfs_btnum_t);
+extern struct xfs_btree_cur *xfs_allocbt_init_cursor(struct xfs_mount *mp,
+ struct xfs_trans *tp, struct xfs_buf *bp,
+ struct xfs_perag *pag, xfs_btnum_t btnum);
struct xfs_btree_cur *xfs_allocbt_stage_cursor(struct xfs_mount *mp,
- struct xbtree_afakeroot *afake, xfs_agnumber_t agno,
+ struct xbtree_afakeroot *afake, struct xfs_perag *pag,
xfs_btnum_t btnum);
extern int xfs_allocbt_maxrecs(struct xfs_mount *, int, int);
extern xfs_extlen_t xfs_allocbt_calc_size(struct xfs_mount *mp,
diff --git a/fs/xfs/scrub/agheader_repair.c b/fs/xfs/scrub/agheader_repair.c
index 251410c19198..ee2d85e3fd4a 100644
--- a/fs/xfs/scrub/agheader_repair.c
+++ b/fs/xfs/scrub/agheader_repair.c
@@ -246,7 +246,7 @@ xrep_agf_calc_from_btrees(
int error;

/* Update the AGF counters from the bnobt. */
- cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
+ cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_BNO);
error = xfs_alloc_query_all(cur, xrep_agf_walk_allocbt, &raa);
if (error)
@@ -260,7 +260,7 @@ xrep_agf_calc_from_btrees(
agf->agf_longest = cpu_to_be32(raa.longest);

/* Update the AGF counters from the cntbt. */
- cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
+ cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_CNT);
error = xfs_btree_count_blocks(cur, &blocks);
if (error)
@@ -497,7 +497,7 @@ xrep_agfl_collect_blocks(
xfs_btree_del_cursor(cur, error);

/* Find all blocks currently being used by the bnobt. */
- cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
+ cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_BNO);
error = xbitmap_set_btblocks(&ra.agmetablocks, cur);
if (error)
@@ -505,7 +505,7 @@ xrep_agfl_collect_blocks(
xfs_btree_del_cursor(cur, error);

/* Find all blocks currently being used by the cntbt. */
- cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp, sc->sa.agno,
+ cur = xfs_allocbt_init_cursor(mp, sc->tp, agf_bp,
sc->sa.pag, XFS_BTNUM_CNT);
error = xbitmap_set_btblocks(&ra.agmetablocks, cur);
if (error)
diff --git a/fs/xfs/scrub/common.c b/fs/xfs/scrub/common.c
index cc7688ce79b2..3035f8cee6f6 100644
--- a/fs/xfs/scrub/common.c
+++ b/fs/xfs/scrub/common.c
@@ -465,14 +465,14 @@ xchk_ag_btcur_init(
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_BNO)) {
/* Set up a bnobt cursor for cross-referencing. */
sa->bno_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
- agno, sa->pag, XFS_BTNUM_BNO);
+ sa->pag, XFS_BTNUM_BNO);
}

if (sa->agf_bp &&
xchk_ag_btree_healthy_enough(sc, sa->pag, XFS_BTNUM_CNT)) {
/* Set up a cntbt cursor for cross-referencing. */
sa->cnt_cur = xfs_allocbt_init_cursor(mp, sc->tp, sa->agf_bp,
- agno, sa->pag, XFS_BTNUM_CNT);
+ sa->pag, XFS_BTNUM_CNT);
}

/* Set up a inobt cursor for cross-referencing. */
diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
index 311ebaad4f5a..736df5660f1f 100644
--- a/fs/xfs/xfs_discard.c
+++ b/fs/xfs/xfs_discard.c
@@ -50,7 +50,7 @@ xfs_trim_extents(
goto out_put_perag;
agf = agbp->b_addr;

- cur = xfs_allocbt_init_cursor(mp, NULL, agbp, agno, pag, XFS_BTNUM_CNT);
+ cur = xfs_allocbt_init_cursor(mp, NULL, agbp, pag, XFS_BTNUM_CNT);

/*
* Look up the longest btree in the AGF and start with it.
diff --git a/fs/xfs/xfs_fsmap.c b/fs/xfs/xfs_fsmap.c
index 623cabaeafee..7501dd941a63 100644
--- a/fs/xfs/xfs_fsmap.c
+++ b/fs/xfs/xfs_fsmap.c
@@ -740,7 +740,7 @@ xfs_getfsmap_datadev_bnobt_query(

/* Allocate cursor for this AG and query_range it. */
*curpp = xfs_allocbt_init_cursor(tp->t_mountp, tp, info->agf_bp,
- info->pag->pag_agno, info->pag, XFS_BTNUM_BNO);
+ info->pag, XFS_BTNUM_BNO);
key->ar_startblock = info->low.rm_startblock;
key[1].ar_startblock = info->high.rm_startblock;
return xfs_alloc_query_range(*curpp, key, &key[1],
--
2.31.1