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Date: Sat, 3 Oct 2020 00:13:21 -0400 From: "Theodore Y. Ts'o" <tytso@....edu> To: Xiao Yang <yangx.jy@...fujitsu.com> Cc: linux-ext4@...r.kernel.org, darrick.wong@...cle.com, ira.weiny@...el.com, jack@...e.cz Subject: Re: [PATCH v2] ext4: Disallow modifying DAX inode flag if inline_data has been set On Fri, Aug 28, 2020 at 04:43:30PM +0800, Xiao Yang wrote: > inline_data is mutually exclusive to DAX so enabling both of them triggers > the following issue: > ------------------------------------------ > # mkfs.ext4 -F -O inline_data /dev/pmem1 > ... > # mount /dev/pmem1 /mnt > # echo 'test' >/mnt/file > # lsattr -l /mnt/file > /mnt/file Inline_Data > # xfs_io -c "chattr +x" /mnt/file > # xfs_io -c "lsattr -v" /mnt/file > [dax] /mnt/file > # umount /mnt > # mount /dev/pmem1 /mnt > # cat /mnt/file > cat: /mnt/file: Numerical result out of range > ------------------------------------------ > > Fixes: b383a73f2b83 ("fs/ext4: Introduce DAX inode flag") > Signed-off-by: Xiao Yang <yangx.jy@...fujitsu.com> > Reviewed-by: Jan Kara <jack@...e.cz> Applied, thanks. - Ted
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