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From: "Lakshmipathi.G" <lakshmipathi.g@giis.co.in>
To: Hans van Kranenburg <hans.van.kranenburg@mendix.com>
Cc: btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: Fresh Raid-1 setup, dump-tree shows invalid owner id
Date: Mon, 30 Jan 2017 18:07:01 +0530	[thread overview]
Message-ID: <CAKuJGC_x8S-RhnXA+1oVL3zsDkjMaHxixgajxmxvuRw6BZNUHA@mail.gmail.com> (raw)
In-Reply-To: <006ecc84-52fb-2b09-0e47-317fa018e9f9@mendix.com>

>
> Yes, the owner is the number of the tree.
>
> DATA_RELOC_TREE is -9, but then unsigned 64 bits.
>
>>>> -9 + 2**64
> 18446744073709551607L
>
> So the result is a number that's close to the max or 64 bits.
>
> You can find those numbers in the kernel source in
>   include/uapi/linux/btrfs_tree.h
>
> e.g.:
>
> #define BTRFS_DATA_RELOC_TREE_OBJECTID -9ULL
>

Thanks for the details. This owner number looked different from other
owner ids, so wanted to check on the same, now understood.

Cheers.
Lakshmipathi.G

  reply	other threads:[~2017-01-30 12:47 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-30  1:54 Fresh Raid-1 setup, dump-tree shows invalid owner id Lakshmipathi.G
2017-01-30 11:34 ` Lakshmipathi.G
2017-01-30 11:43 ` Hans van Kranenburg
2017-01-30 12:37   ` Lakshmipathi.G [this message]
2017-03-13 17:34     ` David Sterba

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