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Date: Mon, 20 Apr 2015 15:48:38 -0400
From: Chris Mason <clm@fb.com>
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To: NeilBrown <neilb@suse.de>, David Howells <dhowells@redhat.com>,
        Al Viro <viro@ZenIV.linux.org.uk>, Josef Bacik <jbacik@fb.com>,
        David Sterba <dsterba@suse.cz>
CC: <linux-cachefs@vger.kernel.org>, Dave Chinner <david@fromorbit.com>,
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Subject: Re: [PATCH 3/3] btrfs: set FS_SUPPORTS_SEEK_HOLE flag.
References: <20150420052558.26554.97143.stgit@notabene.brown> <20150420052752.26554.13596.stgit@notabene.brown>
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On 04/20/2015 01:27 AM, NeilBrown wrote:
> This allows fscache to cachefiles in a btrfs filesystem.

Thanks for working on this Neil.

Signed-off-by: Chris Mason <clm@fb.com>

-chris

> 
> Signed-off-by: NeilBrown <neilb@suse.de>
> ---
>  fs/btrfs/super.c |    3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
> index 05fef198ff94..d3c5d2b40f8e 100644
> --- a/fs/btrfs/super.c
> +++ b/fs/btrfs/super.c
> @@ -1904,7 +1904,8 @@ static struct file_system_type btrfs_fs_type = {
>  	.name		= "btrfs",
>  	.mount		= btrfs_mount,
>  	.kill_sb	= btrfs_kill_super,
> -	.fs_flags	= FS_REQUIRES_DEV | FS_BINARY_MOUNTDATA,
> +	.fs_flags	= FS_REQUIRES_DEV | FS_BINARY_MOUNTDATA |
> +			  FS_SUPPORTS_SEEK_HOLE,
>  };
>  MODULE_ALIAS_FS("btrfs");
>  
> 
>