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From: Alexey Kodanev <alexey.kodanev@oracle.com>
To: ltp@lists.linux.it
Subject: [LTP] [PATCH] syscalls/fallocate04: Fix on Btrfs
Date: Fri, 26 Aug 2016 15:08:06 +0300	[thread overview]
Message-ID: <57C03126.1020609@oracle.com> (raw)
In-Reply-To: <57C02561.8000608@oracle.com>

Hi,
On 08/26/2016 02:17 PM, Stanislav Kholmanskikh wrote:
> Hi,
>
> On 08/25/2016 07:53 PM, Cyril Hrubis wrote:
>> The size of a file can double on Btrfs temporarily even when we write
>> into a preallocated space because of internal Btrfs caches, at least
>> that is what I've been told by Btrfs devs. The internal caches are then
>> freed after some time, or can be force freed by syncing the file, which
>> is what this patch does.

So if we have available free space x Mb,  we can't allocate more than x 
/ 2 Mb and it's not a bug?

Best regards,
Alexey


  reply	other threads:[~2016-08-26 12:08 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-08-25 16:53 [LTP] [PATCH] syscalls/fallocate04: Fix on Btrfs Cyril Hrubis
2016-08-26 11:17 ` Stanislav Kholmanskikh
2016-08-26 12:08   ` Alexey Kodanev [this message]
2016-08-29  9:44     ` Cyril Hrubis
2016-08-29 12:16       ` Alexey Kodanev
2016-08-29 12:36         ` Cyril Hrubis
2016-08-31 14:07 ` Cyril Hrubis

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