Btrfs: fix the amount of space reserved for unlink
Our unlink reservations were a bit much, we were reserving 10 and I only count 8 possible items we're touching, so comment what we're reserving for and fix the count value. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com>
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@ -2758,7 +2758,16 @@ static struct btrfs_trans_handle *__unlink_start_trans(struct inode *dir,
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u64 ino = btrfs_ino(inode);
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u64 ino = btrfs_ino(inode);
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u64 dir_ino = btrfs_ino(dir);
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u64 dir_ino = btrfs_ino(dir);
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trans = btrfs_start_transaction(root, 10);
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/*
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* 1 for the possible orphan item
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* 1 for the dir item
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* 1 for the dir index
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* 1 for the inode ref
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* 1 for the inode ref in the tree log
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* 2 for the dir entries in the log
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* 1 for the inode
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*/
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trans = btrfs_start_transaction(root, 8);
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if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
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if (!IS_ERR(trans) || PTR_ERR(trans) != -ENOSPC)
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return trans;
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return trans;
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