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Btrfs: remove some BUG_ONs() when walking backref tree

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The only error return value of __add_prelim_ref() is -ENOMEM,
just return errors rather than trigger BUG_ON().

Signed-off-by: Wang Shilong <wangsl-fnst@cn.fujitsu.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Wang Shilong 2013-04-10 11:22:50 +00:00 • committed by Josef Bacik
parent 92f183aa5b
commit 1149ab6bd4
1 changed files with 7 additions and 3 deletions
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10
fs/btrfs/backref.c
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@ -582,7 +582,8 @@ static int __add_delayed_refs(struct btrfs_delayed_ref_head *head, u64 seq,
default: default:
WARN_ON(1); WARN_ON(1);
} }
BUG_ON(ret); if (ret)
return ret;
} }
return 0; return 0;
@ -680,7 +681,8 @@ static int __add_inline_refs(struct btrfs_fs_info *fs_info,
default: default:
WARN_ON(1); WARN_ON(1);
} }
BUG_ON(ret); if (ret)
return ret;
ptr += btrfs_extent_inline_ref_size(type); ptr += btrfs_extent_inline_ref_size(type);
} }
@ -762,7 +764,9 @@ static int __add_keyed_refs(struct btrfs_fs_info *fs_info,
default: default:
WARN_ON(1); WARN_ON(1);
} }
BUG_ON(ret); if (ret)
return ret;
} }
return ret; return ret;