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Btrfs: hold trans_mutex when using btrfs_record_root_in_trans

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btrfs_record_root_in_trans needs the trans_mutex held to make sure two
callers don't race to setup the root in a given transaction.  This adds
it to all the places that were missing it.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
This commit is contained in:
Yan Zheng 2009-02-12 14:14:53 -05:00 • committed by Chris Mason
parent 4008c04a07
commit 2456242530
3 changed files with 6 additions and 0 deletions
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2
fs/btrfs/extent-tree.c
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@ -5658,7 +5658,9 @@ static noinline int relocate_one_extent(struct btrfs_root *extent_root,
prev_block = block_start;
}
mutex_lock(&extent_root->fs_info->trans_mutex);
btrfs_record_root_in_trans(found_root);
mutex_unlock(&extent_root->fs_info->trans_mutex);
if (ref_path->owner_objectid >= BTRFS_FIRST_FREE_OBJECTID) {
/*
* try to update data extent references while