Since backref resolution is CPU-intensive, the cond_resched calls
should help alleviate soft lockup occurences.
Signed-off-by: Edmund Nadolski <enadol...@suse.com>
Signed-off-by: Jeff Mahoney <je...@suse.com>
---
fs/btrfs/backref.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c
index 0dffd7e..e95049a 100644
--- a/fs/btrfs/backref.c
+++ b/fs/btrfs/backref.c
@@ -658,6 +658,7 @@ static int resolve_indirect_refs(struct btrfs_fs_info
*fs_info,
prelim_ref_insert(fs_info, &preftrees->direct, ref);
ulist_reinit(parents);
+ cond_resched();
}
out:
ulist_free(parents);
@@ -697,6 +698,7 @@ static int add_missing_keys(struct btrfs_fs_info *fs_info,
btrfs_node_key_to_cpu(eb, &ref->key_for_search, 0);
btrfs_tree_read_unlock(eb);
free_extent_buffer(eb);
+ cond_resched();
}
return 0;
}
@@ -1236,6 +1238,7 @@ static int find_parent_nodes(struct btrfs_trans_handle
*trans,
}
eie = NULL;
}
+ cond_resched();
}
out:
--
2.10.2
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