[PATCH] generic/554: test only copy to active swap file

[PATCH] generic/554: test only copy to active swap file

[Amir Goldstein]

Depending on filesystem, copying from active swapfile may be allowed,
just as read from swapfile may be allowed.

Signed-off-by: Amir Goldstein <amir73il@gmail.com>
---

Eryu,

Following feedback by Ted, I've decided it would be better to
remove the test case of copy from swap file.
There is no reason to deny that copy, but there is also no reason
for us to assert that filesystems must allow this functionality.

Even after removing the copy from test case, test still fails
on upstream for all filesystems I tested.
Tests passes with Darrick's copy-file-range-fixes branch.

Thanks,
Amir.

 tests/generic/554     | 3 +--
 tests/generic/554.out | 1 -
 2 files changed, 1 insertion(+), 3 deletions(-)

diff --git a/tests/generic/554 b/tests/generic/554
index 10ae4035..c946ca17 100755
--- a/tests/generic/554
+++ b/tests/generic/554
@@ -4,7 +4,7 @@
 #
 # FS QA Test No. 554
 #
-# Check that we cannot copy_file_range() to/from a swapfile
+# Check that we cannot copy_file_range() to a swapfile
 #
 seq=`basename $0`
 seqres=$RESULT_DIR/$seq
@@ -46,7 +46,6 @@ echo swap files return ETXTBUSY
 _format_swapfile $SCRATCH_MNT/swapfile 16m
 swapon $SCRATCH_MNT/swapfile
 $XFS_IO_PROG -f -c "copy_range -l 32k $SCRATCH_MNT/file" $SCRATCH_MNT/swapfile
-$XFS_IO_PROG -f -c "copy_range -l 32k $SCRATCH_MNT/swapfile" $SCRATCH_MNT/copy
 swapoff $SCRATCH_MNT/swapfile
 
 # success, all done
diff --git a/tests/generic/554.out b/tests/generic/554.out
index ffaa7b0a..19385a05 100644
--- a/tests/generic/554.out
+++ b/tests/generic/554.out
@@ -1,4 +1,3 @@
 QA output created by 554
 swap files return ETXTBUSY
 copy_range: Text file busy
-copy_range: Text file busy
-- 
2.17.1

Re: [PATCH] generic/554: test only copy to active swap file

[Darrick J. Wong]

On Mon, Jun 10, 2019 at 10:53:17PM +0300, Amir Goldstein wrote:
> Depending on filesystem, copying from active swapfile may be allowed,
> just as read from swapfile may be allowed.
> 
> Signed-off-by: Amir Goldstein <amir73il@gmail.com>

LGTM,
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>

--D

> ---
> 
> Eryu,
> 
> Following feedback by Ted, I've decided it would be better to
> remove the test case of copy from swap file.
> There is no reason to deny that copy, but there is also no reason
> for us to assert that filesystems must allow this functionality.
> 
> Even after removing the copy from test case, test still fails
> on upstream for all filesystems I tested.
> Tests passes with Darrick's copy-file-range-fixes branch.
> 
> Thanks,
> Amir.
> 
>  tests/generic/554     | 3 +--
>  tests/generic/554.out | 1 -
>  2 files changed, 1 insertion(+), 3 deletions(-)
> 
> diff --git a/tests/generic/554 b/tests/generic/554
> index 10ae4035..c946ca17 100755
> --- a/tests/generic/554
> +++ b/tests/generic/554
> @@ -4,7 +4,7 @@
>  #
>  # FS QA Test No. 554
>  #
> -# Check that we cannot copy_file_range() to/from a swapfile
> +# Check that we cannot copy_file_range() to a swapfile
>  #
>  seq=`basename $0`
>  seqres=$RESULT_DIR/$seq
> @@ -46,7 +46,6 @@ echo swap files return ETXTBUSY
>  _format_swapfile $SCRATCH_MNT/swapfile 16m
>  swapon $SCRATCH_MNT/swapfile
>  $XFS_IO_PROG -f -c "copy_range -l 32k $SCRATCH_MNT/file" $SCRATCH_MNT/swapfile
> -$XFS_IO_PROG -f -c "copy_range -l 32k $SCRATCH_MNT/swapfile" $SCRATCH_MNT/copy
>  swapoff $SCRATCH_MNT/swapfile
>  
>  # success, all done
> diff --git a/tests/generic/554.out b/tests/generic/554.out
> index ffaa7b0a..19385a05 100644
> --- a/tests/generic/554.out
> +++ b/tests/generic/554.out
> @@ -1,4 +1,3 @@
>  QA output created by 554
>  swap files return ETXTBUSY
>  copy_range: Text file busy
> -copy_range: Text file busy
> -- 
> 2.17.1
>