From: Chandan Rajendra <chandan@linux.vnet.ibm.com>
To: Qu Wenruo <quwenruo@cn.fujitsu.com>
Cc: linux-btrfs@vger.kernel.org, dsterba@suse.com, chandan@mykolab.com
Subject: Re: [PATCH V2] Btrfs-progs: Do not force mixed block group creation unless '-M' option is specified
Date: Thu, 15 Oct 2015 13:26:33 +0530 [thread overview]
Message-ID: <5143356.m2iRuWGxTk@localhost.localdomain> (raw)
In-Reply-To: <561F05F1.4030409@cn.fujitsu.com>
On Thursday 15 Oct 2015 09:48:33 Qu Wenruo wrote:
> The mount failure also remind me about btrfs minimal size check.
>
> Mkfs has its device check against nodesize by btrfs_min_dev_size() function.
> So this also means currect btrfs_min_dev_size() check is not good enough.
>
>
> Current code uses a quite simple one,
> 2 *(MKFS_SYSTEM_BLOCK_GROUP_SIZE + leaf_size << 10).
> But it still fails to be mounted.
>
> Although not related to your patch, do you have any good calculation on
> the minimum device size?
>
Qu, Thanks for pointing this out. I missed out on this one. Currently I
have not got any numbers on arriving at a minimum device size. Will work on
that and post the results.
--
chandan
next prev parent reply other threads:[~2015-10-15 7:57 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-14 17:39 [PATCH V2] Btrfs-progs: Do not force mixed block group creation unless '-M' option is specified Chandan Rajendra
2015-10-15 1:48 ` Qu Wenruo
2015-10-15 7:56 ` Chandan Rajendra [this message]
2015-10-19 16:52 ` David Sterba
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