diff mbox series

xfstest, overlayfs: Use falloc to make sure a meta copy file got copied up

Message ID 20190204183454.GA19549@redhat.com (mailing list archive)
State New, archived
Headers show
Series xfstest, overlayfs: Use falloc to make sure a meta copy file got copied up | expand

Commit Message

Vivek Goyal Feb. 4, 2019, 6:34 p.m. UTC
Overlayfs might copy up data of file on first write of file (and
not necessarily upon open of file). So call falloc file opened
with O_RDWR and after that data must have been copied up.

Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
---
 tests/overlay/060 |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Amir Goldstein Feb. 4, 2019, 8:04 p.m. UTC | #1
On Mon, Feb 4, 2019 at 8:34 PM Vivek Goyal <vgoyal@redhat.com> wrote:
>
> Overlayfs might copy up data of file on first write of file (and
> not necessarily upon open of file). So call falloc file opened
> with O_RDWR and after that data must have been copied up.
>
> Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Amir Goldstein <amir73il@gmail.com>

> ---
>  tests/overlay/060 |    2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: xfstests-dev/tests/overlay/060
> ===================================================================
> --- xfstests-dev.orig/tests/overlay/060 2018-08-27 11:21:51.811847671 -0400
> +++ xfstests-dev/tests/overlay/060      2019-02-04 11:28:09.023718690 -0500
> @@ -170,7 +170,7 @@ test_common()
>
>         # Trigger data copy up and check absence of metacopy xattr.
>         mount_overlay $_lowerdir
> -       $XFS_IO_PROG -c "open -a $SCRATCH_MNT/$_target"
> +       $XFS_IO_PROG -c "falloc 0 1" $SCRATCH_MNT/$_target >> $seqres.full
>         echo "check properties of data copied up file"
>         check_file_size_contents $SCRATCH_MNT/$_target $_size "$_data"
>         umount_overlay
diff mbox series

Patch

Index: xfstests-dev/tests/overlay/060
===================================================================
--- xfstests-dev.orig/tests/overlay/060	2018-08-27 11:21:51.811847671 -0400
+++ xfstests-dev/tests/overlay/060	2019-02-04 11:28:09.023718690 -0500
@@ -170,7 +170,7 @@  test_common()
 
 	# Trigger data copy up and check absence of metacopy xattr.
 	mount_overlay $_lowerdir
-	$XFS_IO_PROG -c "open -a $SCRATCH_MNT/$_target"
+	$XFS_IO_PROG -c "falloc 0 1" $SCRATCH_MNT/$_target >> $seqres.full
 	echo "check properties of data copied up file"
 	check_file_size_contents $SCRATCH_MNT/$_target $_size "$_data"
 	umount_overlay