diff options
| author | Darrick J. Wong <darrick.wong@oracle.com> | 2020-08-17 09:58:01 -0700 |
|---|---|---|
| committer | Darrick J. Wong <darrick.wong@oracle.com> | 2020-09-15 20:52:39 -0700 |
| commit | 2a39946c984464e4aac82c556ba9915589be7323 (patch) | |
| tree | e40f1c0e4a0ddf305426ae61e6f9561ff25d3232 /fs/xfs/libxfs/xfs_ialloc_btree.c | |
| parent | 26e328759b9bc18329752a75762c059e74a23146 (diff) | |
xfs: store inode btree block counts in AGI header
Add a btree block usage counters for both inode btrees to the AGI header
so that we don't have to walk the entire finobt at mount time to create
the per-AG reservations.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'fs/xfs/libxfs/xfs_ialloc_btree.c')
| -rw-r--r-- | fs/xfs/libxfs/xfs_ialloc_btree.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/fs/xfs/libxfs/xfs_ialloc_btree.c b/fs/xfs/libxfs/xfs_ialloc_btree.c index 3c8aebc36e64..6c42a2421cce 100644 --- a/fs/xfs/libxfs/xfs_ialloc_btree.c +++ b/fs/xfs/libxfs/xfs_ialloc_btree.c @@ -67,6 +67,25 @@ xfs_finobt_set_root( XFS_AGI_FREE_ROOT | XFS_AGI_FREE_LEVEL); } +/* Update the inode btree block counter for this btree. */ +static inline void +xfs_inobt_mod_blockcount( + struct xfs_btree_cur *cur, + int howmuch) +{ + struct xfs_buf *agbp = cur->bc_ag.agbp; + struct xfs_agi *agi = agbp->b_addr; + + if (!xfs_sb_version_hasinobtcounts(&cur->bc_mp->m_sb)) + return; + + if (cur->bc_btnum == XFS_BTNUM_FINO) + be32_add_cpu(&agi->agi_fblocks, howmuch); + else if (cur->bc_btnum == XFS_BTNUM_INO) + be32_add_cpu(&agi->agi_iblocks, howmuch); + xfs_ialloc_log_agi(cur->bc_tp, agbp, XFS_AGI_IBLOCKS); +} + STATIC int __xfs_inobt_alloc_block( struct xfs_btree_cur *cur, @@ -102,6 +121,7 @@ __xfs_inobt_alloc_block( new->s = cpu_to_be32(XFS_FSB_TO_AGBNO(args.mp, args.fsbno)); *stat = 1; + xfs_inobt_mod_blockcount(cur, 1); return 0; } @@ -134,6 +154,7 @@ __xfs_inobt_free_block( struct xfs_buf *bp, enum xfs_ag_resv_type resv) { + xfs_inobt_mod_blockcount(cur, -1); return xfs_free_extent(cur->bc_tp, XFS_DADDR_TO_FSB(cur->bc_mp, XFS_BUF_ADDR(bp)), 1, &XFS_RMAP_OINFO_INOBT, resv); |