Re: [PATCH 2/2] common/dmthin: make this work with external log devices

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On 4/20/21 5:22 PM, Darrick J. Wong wrote:
From: Darrick J. Wong <djwong@xxxxxxxxxx>

Provide a mkfs helper to format the dm thin device when external devices
are in use, and fix the dmthin mount helper to support them.  This fixes
regressions in generic/347 and generic/500 when external logs are in
use.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
ok, looks good
Reviewed-by: Allison Henderson <allison.henderson@xxxxxxxxxx>
---
  common/dmthin     |    9 ++++++++-
  tests/generic/347 |    2 +-
  tests/generic/500 |    2 +-
  3 files changed, 10 insertions(+), 3 deletions(-)


diff --git a/common/dmthin b/common/dmthin
index c58c3948..3b1c7d45 100644
--- a/common/dmthin
+++ b/common/dmthin
@@ -218,10 +218,17 @@ _dmthin_set_fail()
_dmthin_mount_options()
  {
-	echo `_common_dev_mount_options $*` $DMTHIN_VOL_DEV $SCRATCH_MNT
+	_scratch_options mount
+	echo `_common_dev_mount_options $*` $SCRATCH_OPTIONS $DMTHIN_VOL_DEV $SCRATCH_MNT
  }
_dmthin_mount()
  {
  	_mount -t $FSTYP `_dmthin_mount_options $*`
  }
+
+_dmthin_mkfs()
+{
+	_scratch_options mkfs
+	_mkfs_dev $SCRATCH_OPTIONS $@ $DMTHIN_VOL_DEV
+}
diff --git a/tests/generic/347 b/tests/generic/347
index cbc5150a..e970ac10 100755
--- a/tests/generic/347
+++ b/tests/generic/347
@@ -31,7 +31,7 @@ _setup_thin()
  {
  	_dmthin_init $BACKING_SIZE $VIRTUAL_SIZE
  	_dmthin_set_queue
-	_mkfs_dev $DMTHIN_VOL_DEV
+	_dmthin_mkfs
  	_dmthin_mount
  }
diff --git a/tests/generic/500 b/tests/generic/500
index 085ddbf3..5ab2f78c 100755
--- a/tests/generic/500
+++ b/tests/generic/500
@@ -68,7 +68,7 @@ CLUSTER_SIZE=$((64 * 1024 / 512))		# 64K
_dmthin_init $BACKING_SIZE $VIRTUAL_SIZE $CLUSTER_SIZE 0
  _dmthin_set_fail
-_mkfs_dev $DMTHIN_VOL_DEV
+_dmthin_mkfs
  _dmthin_mount
# There're two bugs at here, one is dm-thin bug, the other is filesystem




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