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xfs: move extent busy tree initialization to xfs_initialize_perag

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Move the per-AG busy extent tree initialization to the per-ag structure
initialization since we don't want online repair to leak the old tree.
We only deconstruct the tree at unmount time, so this should be safe.
This also enables us to eliminate the commented out initialization in
the xfsprogs libxfs.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Darrick J. Wong 2018-07-31 13:18:02 -07:00
parent e666aa37f4
commit ff23f4af7e
2 changed files with 3 additions and 3 deletions
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3
fs/xfs/libxfs/xfs_alloc.c
View File

@ -2755,9 +2755,6 @@ xfs_alloc_read_agf(
pag->pagf_levels[XFS_BTNUM_RMAPi] =
be32_to_cpu(agf->agf_levels[XFS_BTNUM_RMAPi]);
pag->pagf_refcount_level = be32_to_cpu(agf->agf_refcount_level);
spin_lock_init(&pag->pagb_lock);
pag->pagb_count = 0;
pag->pagb_tree = RB_ROOT;
pag->pagf_init = 1;
pag->pagf_agflreset = xfs_agfl_needs_reset(mp, agf);
}

3
fs/xfs/xfs_mount.c
View File

@ -207,6 +207,9 @@ xfs_initialize_perag(
if (xfs_buf_hash_init(pag))
goto out_free_pag;
init_waitqueue_head(&pag->pagb_wait);
spin_lock_init(&pag->pagb_lock);
pag->pagb_count = 0;
pag->pagb_tree = RB_ROOT;
if (radix_tree_preload(GFP_NOFS))
goto out_hash_destroy;