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Btrfs: don't panic if we're trying to drop too many refs

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This is just obnoxious.  Just print a message, abort the transaction, and return
an error.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
This commit is contained in:
Josef Bacik 2013-04-24 16:38:50 -04:00
parent 171f6537ab
commit 32b0253803
1 changed files with 7 additions and 1 deletions
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8
fs/btrfs/extent-tree.c
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@ -5596,7 +5596,13 @@ static int __btrfs_free_extent(struct btrfs_trans_handle *trans,
} }
refs = btrfs_extent_refs(leaf, ei); refs = btrfs_extent_refs(leaf, ei);
BUG_ON(refs < refs_to_drop); if (refs < refs_to_drop) {
btrfs_err(info, "trying to drop %d refs but we only have %Lu "
"for bytenr %Lu\n", refs_to_drop, refs, bytenr);
ret = -EINVAL;
btrfs_abort_transaction(trans, extent_root, ret);
goto out;
}
refs -= refs_to_drop; refs -= refs_to_drop;
if (refs > 0) { if (refs > 0) {