diff mbox series

[blktests,v2,02/11] common/xfs: Create common helper to check for XFS support

Message ID 20200930185422.11494-3-logang@deltatee.com (mailing list archive)
State New, archived
Headers show
Series NVMe Target Passthru Block Tests | expand

Commit Message

Logan Gunthorpe Sept. 30, 2020, 6:54 p.m. UTC
Two nvme tests create and mount XFS filesystems and check for mkfs.xfs.

They should also check for XFS support in the kernel so create a common
helper for this.

Signed-off-by: Logan Gunthorpe <logang@deltatee.com>
---
 common/rc      |  8 ++++++++
 common/xfs     | 11 +++++++++++
 tests/nvme/012 |  6 ++++--
 tests/nvme/013 |  4 +++-
 4 files changed, 26 insertions(+), 3 deletions(-)
 create mode 100644 common/xfs

Comments

Chaitanya Kulkarni Oct. 6, 2020, 11:44 p.m. UTC | #1
On 9/30/20 11:54, Logan Gunthorpe wrote:
>  
>  requires() {
>  	_nvme_requires
> -	_have_program mkfs.xfs && _have_fio
> +	_have_xfs
> +	_have_fio
Can you make _have_xfs return true false ? so it can be used with && ?
Logan Gunthorpe Oct. 6, 2020, 11:51 p.m. UTC | #2
On 2020-10-06 5:44 p.m., Chaitanya Kulkarni wrote:
> On 9/30/20 11:54, Logan Gunthorpe wrote:
>>  
>>  requires() {
>>  	_nvme_requires
>> -	_have_program mkfs.xfs && _have_fio
>> +	_have_xfs
>> +	_have_fio
> Can you make _have_xfs return true false ? so it can be used with && ?

_have_xfs() does return true/false and can be used with && or in a
conditional.

Per [1], my opinion is that using && in the requires() function where
the return value is ignored is confusing so I prefer not to do it in new
code.

If we want to reconsider this we, should add a check to ensure the
return value of requires() matches the expectation of the global
variable it uses.

Logan

[1]
https://lore.kernel.org/linux-block/92478e6f-622a-a1ae-6189-4009f9a307bc@deltatee.com/
Chaitanya Kulkarni Oct. 7, 2020, 12:58 a.m. UTC | #3
On 10/6/20 16:51, Logan Gunthorpe wrote:
> _have_xfs() does return true/false and can be used with && or in a
> conditional.
>
> Per [1], my opinion is that using && in the requires() function where
> the return value is ignored is confusing so I prefer not to do it in new
> code.
>
> If we want to reconsider this we, should add a check to ensure the
> return value of requires() matches the expectation of the global
> variable it uses.
>
> Logan
>
> [1]
> https://lore.kernel.org/linux-block/92478e6f-622a-a1ae-6189-4009f9a307bc@deltatee.com/

Make sense to me, lets not change this, thanks for pointing that out.
diff mbox series

Patch

diff --git a/common/rc b/common/rc
index cdc0150ea5ea..44cb218c2fac 100644
--- a/common/rc
+++ b/common/rc
@@ -181,6 +181,14 @@  _have_tracepoint() {
 	return 0
 }
 
+_have_fs() {
+	modprobe "$1" >/dev/null 2>&1
+	if [[ ! -d "/sys/fs/$1" ]]; then
+		SKIP_REASON="kernel does not support filesystem $1"
+		return 1
+	fi
+}
+
 _test_dev_is_rotational() {
 	[[ $(cat "${TEST_DEV_SYSFS}/queue/rotational") -ne 0 ]]
 }
diff --git a/common/xfs b/common/xfs
new file mode 100644
index 000000000000..d1a603b8c7b5
--- /dev/null
+++ b/common/xfs
@@ -0,0 +1,11 @@ 
+#!/bin/bash
+# SPDX-License-Identifier: GPL-3.0+
+# Copyright (C) 2017 Omar Sandoval
+#
+# fio helper functions.
+
+. common/shellcheck
+
+_have_xfs() {
+	_have_fs xfs && _have_program mkfs.xfs
+}
diff --git a/tests/nvme/012 b/tests/nvme/012
index 1dbd59804ed7..1d8d8e3cc271 100755
--- a/tests/nvme/012
+++ b/tests/nvme/012
@@ -5,14 +5,16 @@ 
 # Test mkfs with data verification for block device backed ns.
 
 . tests/nvme/rc
+. common/xfs
 
 DESCRIPTION="run mkfs and data verification fio job on NVMeOF block device-backed ns"
 TIMED=1
 
 requires() {
 	_nvme_requires
-	_have_program mkfs.xfs && _have_program fio && \
-		_have_modules loop
+	_have_xfs
+	_have_program fio
+	_have_modules loop
 	_require_nvme_trtype_is_fabrics
 }
 
diff --git a/tests/nvme/013 b/tests/nvme/013
index df7f23e69252..3819a2730d9b 100755
--- a/tests/nvme/013
+++ b/tests/nvme/013
@@ -5,13 +5,15 @@ 
 # Test mkfs with data verification for file backed ns.
 
 . tests/nvme/rc
+. common/xfs
 
 DESCRIPTION="run mkfs and data verification fio job on NVMeOF file-backed ns"
 TIMED=1
 
 requires() {
 	_nvme_requires
-	_have_program mkfs.xfs && _have_fio
+	_have_xfs
+	_have_fio
 	_require_nvme_trtype_is_fabrics
 }