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From: "Darrick J. Wong" <darrick.wong@oracle.com>
To: Michal Suchanek <msuchanek@suse.de>
Cc: linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org,
	"Theodore Ts'o" <tytso@mit.edu>,
	Andreas Dilger <adilger.kernel@dilger.ca>,
	Ira Weiny <ira.weiny@intel.com>, Jan Kara <jack@suse.cz>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] xfs: show the dax option in mount options.
Date: Mon, 9 Nov 2020 11:24:19 -0800	[thread overview]
Message-ID: <20201109192419.GC9695@magnolia> (raw)
In-Reply-To: <f9f7ba25e97dacd92c09eb3ee6a4aca8b4f72b00.1604948373.git.msuchanek@suse.de>

On Mon, Nov 09, 2020 at 08:10:08PM +0100, Michal Suchanek wrote:
> xfs accepts both dax and dax_enum but shows only dax_enum. Show both
> options.
> 
> Fixes: 8d6c3446ec23 ("fs/xfs: Make DAX mount option a tri-state")
> Signed-off-by: Michal Suchanek <msuchanek@suse.de>
> ---
>  fs/xfs/xfs_super.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
> index e3e229e52512..a3b00003840d 100644
> --- a/fs/xfs/xfs_super.c
> +++ b/fs/xfs/xfs_super.c
> @@ -163,7 +163,7 @@ xfs_fs_show_options(
>  		{ XFS_MOUNT_GRPID,		",grpid" },
>  		{ XFS_MOUNT_DISCARD,		",discard" },
>  		{ XFS_MOUNT_LARGEIO,		",largeio" },
> -		{ XFS_MOUNT_DAX_ALWAYS,		",dax=always" },
> +		{ XFS_MOUNT_DAX_ALWAYS,		",dax,dax=always" },

NAK, programs that require DAX semantics for files stored on XFS must
call statx to detect the STATX_ATTR_DAX flag, as outlined in "Enabling
DAX on xfs" in Documentation/filesystems/dax.txt.

--D

>  		{ XFS_MOUNT_DAX_NEVER,		",dax=never" },
>  		{ 0, NULL }
>  	};
> -- 
> 2.26.2
> 

  parent reply	other threads:[~2020-11-09 19:24 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-09 19:10 [PATCH 0/2] Tristate moount option comatibility fixup Michal Suchanek
2020-11-09 19:10 ` [PATCH 1/2] xfs: show the dax option in mount options Michal Suchanek
2020-11-09 19:24   ` Eric Sandeen
2020-11-09 19:24   ` Darrick J. Wong [this message]
2020-11-09 20:27     ` Michal Suchánek
2020-11-09 21:08       ` Dave Chinner
2020-11-11 10:28         ` Michal Suchánek
2020-11-12  1:49           ` Dave Chinner
2020-11-12 11:12             ` Michal Suchánek
2020-11-12 15:10               ` Jan Kara
2020-11-12 16:08                 ` Ira Weiny
2020-12-01 16:29                   ` Michal Suchánek
2020-11-10 18:38   ` Christoph Hellwig
2020-11-09 19:10 ` [PATCH 2/2] ext4: " Michal Suchanek
2020-11-10 14:14 ` [PATCH 0/2] Tristate moount option comatibility fixup Theodore Y. Ts'o
2020-11-10 18:35 ` Christoph Hellwig

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