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xfs: add a perag to the btree cursor

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Which will eventually completely replace the agno in it.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Brian Foster <bfoster@redhat.com>
This commit is contained in:
Dave Chinner
2021-06-02 10:48:24 +10:00
committed by Dave Chinner
parent 58d43a7e32
commit be9fb17d88
21 changed files with 119 additions and 70 deletions
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15
fs/xfs/libxfs/xfs_ialloc_btree.c
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@@ -36,7 +36,7 @@ xfs_inobt_dup_cursor(
{
return xfs_inobt_init_cursor(cur->bc_mp, cur->bc_tp,
cur->bc_ag.agbp, cur->bc_ag.agno,
cur->bc_btnum);
cur->bc_ag.pag, cur->bc_btnum);
}
STATIC void
@@ -429,6 +429,7 @@ xfs_inobt_init_common(
struct xfs_mount *mp, /* file system mount point */
struct xfs_trans *tp, /* transaction pointer */
xfs_agnumber_t agno, /* allocation group number */
struct xfs_perag *pag,
xfs_btnum_t btnum) /* ialloc or free ino btree */
{
struct xfs_btree_cur *cur;
@@ -451,6 +452,11 @@ xfs_inobt_init_common(
cur->bc_flags |= XFS_BTREE_CRC_BLOCKS;
cur->bc_ag.agno = agno;
if (pag) {
/* take a reference for the cursor */
atomic_inc(&pag->pag_ref);
}
cur->bc_ag.pag = pag;
return cur;
}
@@ -461,12 +467,13 @@ xfs_inobt_init_cursor(
struct xfs_trans *tp,
struct xfs_buf *agbp,
xfs_agnumber_t agno,
struct xfs_perag *pag,
xfs_btnum_t btnum)
{
struct xfs_btree_cur *cur;
struct xfs_agi *agi = agbp->b_addr;
cur = xfs_inobt_init_common(mp, tp, agno, btnum);
cur = xfs_inobt_init_common(mp, tp, agno, pag, btnum);
if (btnum == XFS_BTNUM_INO)
cur->bc_nlevels = be32_to_cpu(agi->agi_level);
else
@@ -485,7 +492,7 @@ xfs_inobt_stage_cursor(
{
struct xfs_btree_cur *cur;
cur = xfs_inobt_init_common(mp, NULL, agno, btnum);
cur = xfs_inobt_init_common(mp, NULL, agno, NULL, btnum);
xfs_btree_stage_afakeroot(cur, afake);
return cur;
}
@@ -672,7 +679,7 @@ xfs_inobt_cur(
if (error)
return error;
cur = xfs_inobt_init_cursor(mp, tp, *agi_bpp, agno, which);
cur = xfs_inobt_init_cursor(mp, tp, *agi_bpp, agno, NULL, which);
*curpp = cur;
return 0;
}