From: David Sterba <dsterba@suse.cz>
To: Anand Jain <anand.jain@oracle.com>
Cc: linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] btrfs-progs: handle balance and replace concurrency
Date: Tue, 15 Jan 2019 18:32:04 +0100 [thread overview]
Message-ID: <20190115173204.GJ2900@twin.jikos.cz> (raw)
In-Reply-To: <1545148904-32714-1-git-send-email-anand.jain@oracle.com>
On Wed, Dec 19, 2018 at 12:01:44AM +0800, Anand Jain wrote:
> Test case:
> Run replace
> btrfs repl start -B -f /dev/sdd /dev/sdb /btrfs;
> while replace is still running, from another terminal try to start
> balance
> btrfs bal start --full-balance /btrfs; echo ...:$?
> Done, had to relocate 0 out of 0 chunks
> ...:0
>
> which fails to report that balance failed to relocate because another
> exclusive operation is running.
> In fact kernel ioctl BTRFS_IOC_BALANCE(_V2) does return error code 8,
> but progs recast it to 0. Fix it by checking for the error code > 0.
>
> After:
> btrfs bal start --full-balance /btrfs; echo ...:$?
> ERROR: balance: add/delete/balance/replace/resize operation in progress
> ...:8
>
> Signed-off-by: Anand Jain <anand.jain@oracle.com>
Applied, thanks.
prev parent reply other threads:[~2019-01-15 17:32 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-18 16:01 [PATCH] btrfs-progs: handle balance and replace concurrency Anand Jain
2019-01-15 17:32 ` David Sterba [this message]
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