From: "Darrick J. Wong" <djwong@kernel.org>
To: Allison Henderson <allison.henderson@oracle.com>
Cc: Chandan Babu R <chandanrlinux@gmail.com>,
fstests@vger.kernel.org, linux-xfs@vger.kernel.org
Subject: Re: [PATCH V6 03/13] common/xfs: Add helper to obtain fsxattr field value
Date: Wed, 10 Mar 2021 11:54:03 -0800 [thread overview]
Message-ID: <20210310195403.GE3419940@magnolia> (raw)
In-Reply-To: <148ab249-be7a-2686-7995-a256e34f292a@oracle.com>
On Tue, Mar 09, 2021 at 11:13:17PM -0700, Allison Henderson wrote:
>
>
> On 3/8/21 10:01 PM, Chandan Babu R wrote:
> > This commit adds a helper function to obtain the value of a particular field
> > of an inode's fsxattr fields.
> >
> > Signed-off-by: Chandan Babu R <chandanrlinux@gmail.com>
> > ---
> > common/xfs | 9 +++++++++
> > 1 file changed, 9 insertions(+)
> >
> > diff --git a/common/xfs b/common/xfs
> > index 26ae21b9..130b3232 100644
> > --- a/common/xfs
> > +++ b/common/xfs
> > @@ -194,6 +194,15 @@ _xfs_get_file_block_size()
> > $XFS_INFO_PROG "$path" | grep realtime | sed -e 's/^.*extsz=\([0-9]*\).*$/\1/g'
> > }
> > +_xfs_get_fsxattr()
> > +{
> > + local field="$1"
> > + local path="$2"
> > +
> > + local value=$($XFS_IO_PROG -c "stat" "$path" | grep "$field")
> > + echo ${value##fsxattr.${field} = }
> > +}
> > +
> In fiddling with the commands here, I think I may have noticed a bug. I
> think you want to grep whole words only, or you may mistakenly match sub
> words. Example:
>
> root@garnet:/home/achender/work_area# field="extsize "
> root@garnet:/home/achender/work_area# xfs_io -c "stat" /mnt/scratch/test |
> grep "$field"
> fsxattr.extsize = 0
> fsxattr.cowextsize = 0
>
> I think if you add the -w to the grep that fixes it:
> root@garnet:/home/achender/work_area# xfs_io -c "stat" /mnt/scratch/test |
> grep -w "$field"
Hey, that's a neat trick I didn't know about!
Oooh and it even exists in both busybox /and/ gnu grep! :)
/me madly goes digging through his shell scripts
<and that was the last we heard from djwong>
--D
> fsxattr.extsize = 0
>
> I think that's what you meant to do right?
>
> Allison
>
> > # xfs_check script is planned to be deprecated. But, we want to
> > # be able to invoke "xfs_check" behavior in xfstests in order to
> > # maintain the current verification levels.
> >
>
next prev parent reply other threads:[~2021-03-10 19:54 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-09 5:01 [PATCH V6 00/13] xfs: Tests to verify inode fork extent count overflow detection Chandan Babu R
2021-03-09 5:01 ` [PATCH V6 01/13] _check_xfs_filesystem: sync fs before running scrub Chandan Babu R
2021-03-09 5:03 ` Darrick J. Wong
2021-03-10 6:12 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 02/13] common/xfs: Add a helper to get an inode fork's extent count Chandan Babu R
2021-03-09 5:04 ` Darrick J. Wong
2021-03-10 6:12 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 03/13] common/xfs: Add helper to obtain fsxattr field value Chandan Babu R
2021-03-09 5:04 ` Darrick J. Wong
2021-03-10 6:13 ` Allison Henderson
2021-03-10 19:54 ` Darrick J. Wong [this message]
2021-03-11 2:54 ` Chandan Babu R
2021-03-11 8:52 ` [PATCH V6.1] " Chandan Babu R
2021-03-11 18:36 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 04/13] xfs: Check for extent overflow when trivally adding a new extent Chandan Babu R
2021-03-10 19:54 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 05/13] xfs: Check for extent overflow when growing realtime bitmap/summary inodes Chandan Babu R
2021-03-10 19:55 ` Allison Henderson
2021-03-22 17:56 ` Darrick J. Wong
2021-03-23 15:51 ` Chandan Babu R
2021-03-23 20:57 ` Darrick J. Wong
2021-03-24 10:46 ` Chandan Babu R
2021-03-24 14:17 ` Chandan Babu R
2021-03-09 5:01 ` [PATCH V6 06/13] xfs: Check for extent overflow when punching a hole Chandan Babu R
2021-03-10 19:55 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 07/13] xfs: Check for extent overflow when adding/removing xattrs Chandan Babu R
2021-03-10 19:55 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 08/13] xfs: Check for extent overflow when adding/removing dir entries Chandan Babu R
2021-03-10 22:41 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 09/13] xfs: Check for extent overflow when writing to unwritten extent Chandan Babu R
2021-03-10 22:41 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 10/13] xfs: Check for extent overflow when moving extent from cow to data fork Chandan Babu R
2021-03-10 22:41 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 11/13] xfs: Check for extent overflow when remapping an extent Chandan Babu R
2021-03-10 23:49 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 12/13] xfs: Check for extent overflow when swapping extents Chandan Babu R
2021-03-10 23:49 ` Allison Henderson
2021-03-09 5:01 ` [PATCH V6 13/13] xfs: Stress test with bmap_alloc_minlen_extent error tag enabled Chandan Babu R
2021-03-10 23:49 ` Allison Henderson
2021-03-22 18:54 ` Darrick J. Wong
2021-03-23 5:28 ` Chandan Babu R
2021-03-23 11:27 ` Chandan Babu R
2021-03-26 4:05 ` Chandan Babu R
2021-03-26 4:21 ` Darrick J. Wong
2021-04-15 9:33 ` Chandan Babu R
2021-04-17 0:26 ` Darrick J. Wong
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