FSTests Archive on lore.kernel.org
 help / color / Atom feed
From: Ira Weiny <ira.weiny@intel.com>
To: Xiao Yang <yangx.jy@cn.fujitsu.com>
Cc: Xiao Yang <ice_yangxiao@163.com>,
	fstests@vger.kernel.org, darrick.wong@oracle.com
Subject: Re: [PATCH v2 6/6] xfs/260: Move xfs/260 to generic
Date: Tue, 23 Jun 2020 11:08:03 -0700
Message-ID: <20200623180803.GE3910394@iweiny-DESK2.sc.intel.com> (raw)
In-Reply-To: <5EF1C293.4010104@cn.fujitsu.com>

On Tue, Jun 23, 2020 at 04:51:31PM +0800, Xiao Yang wrote:
> On 2020/6/19 23:15, Ira Weiny wrote:
> > On Thu, Jun 18, 2020 at 11:35:56PM +0800, Xiao Yang wrote:
> > > On 6/18/20 5:48 AM, Ira Weiny wrote:
> > > > On Wed, Jun 17, 2020 at 05:32:04PM +0800, Xiao Yang wrote:
> > > > > From: Xiao Yang<yangx.jy@cn.fujitsu.com>

[snip]

> > > >    }
> > > > @@ -124,17 +151,11 @@ do_tests()
> > > >    # make xfs aligned for PMD fault testing
> > > >    _scratch_mkfs_geom $(_get_hugepagesize) 1>>  $seqres.full 2>&1
> > > > -# mount with dax option
> > > > -_scratch_mount "-o dax"
> > > > -
> Hi Ira,
> 
> Why do you want to remove this combination(i.e. test per-inode DAX flag
> under mounting with dax option) ?
> Is it because mounting with dax option ignore FS_XFLAG_DAX flag?
> I think it is a reasonable combination. :-)

Yes running with the DAX mount option really does not test anything IMO.

> 
> > > >    tsize=$((128 * 1024 * 1024))
> > > > -do_tests
> > > > -_scratch_unmount
> > > > -
> > > >    # mount again without dax option
> > > >    export MOUNT_OPTIONS=""
> > > > -_scratch_mount
> > > > +_scratch_mount "-o dax=inode"
> > > >    do_tests
> > > >    # success, all done
> 
> Could we keep _scratch_mount without dax so that this test can run on both
> old and new kernel?
> See the following reasons:
> 1) FS_XFLAG_DAX was introduced by commit 58f88ca("xfs: introduce per-inode
> DAX enablement") since 2017.
> 2) _scratch_mount with dax=inode is equal to _scratch_mount without dax.

I suppose that would be ok.  But being generic what happens when this runs on
FS's which don't have the FS_XFLAG_DAX flag?  is it ignored?

FWIW I believe that any FS (which includes older kernels) which do not support
dax=inode have no need for this test to run.  The use of FS_XFLAG_DAX on older
xfs does not do anything and simply does not exist elsewhere.  Only FS's which
support dax=inode have behavior which needs to be tested IMO.

Ira

> 
> Best Regards,
> Xiao Yang
> > 
> > .
> > 
> 
> 
> 

  reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-17  9:31 [PATCH v2 0/6] Make fstests support new behavior of DAX Xiao Yang
2020-06-17  9:31 ` [PATCH v2 1/6] common/rc: Introduce new helpers for DAX mount options and FS_XFLAG_DAX Xiao Yang
2020-06-17 20:58   ` Ira Weiny
2020-06-17  9:32 ` [PATCH v2 2/6] fstests: Use _require_scratch_dax_mountopt() and _require_scratch_dax_iflag() Xiao Yang
2020-06-17 20:58   ` Ira Weiny
2020-06-17  9:32 ` [PATCH v2 3/6] common/rc: Remove unused _require_scratch_dax() Xiao Yang
2020-06-17 20:59   ` Ira Weiny
2020-06-17  9:32 ` [PATCH v2 4/6] generic/223: Don't clear all mkfs options for _scratch_mkfs_geom() roughly Xiao Yang
2020-06-17  9:32 ` [PATCH v2 5/6] generic/413, xfs/260: Improve format operation for PMD fault testing Xiao Yang
2020-06-23  6:00   ` Xiao Yang
2020-06-23 15:28   ` Darrick J. Wong
2020-06-17  9:32 ` [PATCH v2 6/6] xfs/260: Move xfs/260 to generic Xiao Yang
2020-06-17 21:48   ` Ira Weiny
2020-06-18 15:35     ` Xiao Yang
2020-06-19 15:15       ` Ira Weiny
2020-06-23  8:51         ` Xiao Yang
2020-06-23 18:08           ` Ira Weiny [this message]
2020-06-30  7:08             ` Xiao Yang
2020-06-30 15:50               ` Ira Weiny
2020-07-01  1:07                 ` Xiao Yang
2020-06-18  0:21 ` [PATCH v2 0/6] Make fstests support new behavior of DAX Ira Weiny
2020-06-18 15:04   ` Xiao Yang

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20200623180803.GE3910394@iweiny-DESK2.sc.intel.com \
    --to=ira.weiny@intel.com \
    --cc=darrick.wong@oracle.com \
    --cc=fstests@vger.kernel.org \
    --cc=ice_yangxiao@163.com \
    --cc=yangx.jy@cn.fujitsu.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

FSTests Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/fstests/0 fstests/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 fstests fstests/ https://lore.kernel.org/fstests \
		fstests@vger.kernel.org
	public-inbox-index fstests

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.fstests


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git