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authorDave Chinner <dchinner@redhat.com>2021-10-27 12:38:42 +1100
committerEryu Guan <guaneryu@gmail.com>2021-10-31 22:18:52 +0800
commit5c4de305a3a75b7db982821330a51e775a3678c4 (patch)
tree54e0b6c0a09e8320456da6c02bfa8bcaf96f2e71
parent7ca10f2b05e57d9816af51da04c336284691ae79 (diff)
downloadxfstests-dev-5c4de305a3a75b7db982821330a51e775a3678c4.tar.gz
fstests: _require_dm_target should not always skip DAX capable devices
Recent changes have turned off all dm-error, dm-thin and dm-flakey tests on pmem devices even when we are not explicitly testing DAX. This is a regression resulting in a large number of log recovery tests no longer running on my pmem-based test VMs. I added the "-o dax=never" mount options to these test configs, only to find it still would not run the dm tests even though the filesystem will never use DAX. Fix this so that the dm target DAX test explicitly ignores the the block device DAX capability when the filesystem is mounted with dax=never and hence we can use all the dm targets when the tests are being run with FSDAX disabled. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Zorro Lang <zlang@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
-rw-r--r--common/rc21
1 files changed, 15 insertions, 6 deletions
diff --git a/common/rc b/common/rc
index 7f693d3922..751974539e 100644
--- a/common/rc
+++ b/common/rc
@@ -1965,12 +1965,19 @@ _require_sane_bdev_flush()
}
# Decide if the scratch filesystem is likely to be mounted in fsdax mode.
-# If there's a dax clause in the mount options we assume the test runner
-# wants us to test DAX; or if the scratch device itself advertises dax mode
-# in sysfs.
-__detect_scratch_fsdax()
+# It goes 3 ways based on mount options::
+# 1. "dax" or "dax=always" means always test using DAX
+# 2. "dax=never" means we'll never use DAX
+# 3. "dax=inode" or nothing means "use scratch dev capability" to
+# determine whether DAX is going to be used.
+#
+# Returns 0 if DAX will be used, 1 if DAX is not going to be used.
+__scratch_uses_fsdax()
{
- _normalize_mount_options | egrep -q "dax(=always| |$)" && return 0
+ local ops=$(_normalize_mount_options)
+
+ echo $ops | egrep -qw "dax(=always| |$)" && return 0
+ echo $ops | grep -qw "dax=never" && return 1
local sysfs="/sys/block/$(_short_dev $SCRATCH_DEV)"
test -e "${sysfs}/dax" && return 0
@@ -1982,6 +1989,8 @@ __detect_scratch_fsdax()
_require_dm_target()
{
local target=$1
+ local fsdax
+ local bdevdax
# require SCRATCH_DEV to be a valid block device with sane BLKFLSBUF
# behaviour
@@ -1989,7 +1998,7 @@ _require_dm_target()
_require_sane_bdev_flush $SCRATCH_DEV
_require_command "$DMSETUP_PROG" dmsetup
- if __detect_scratch_fsdax; then
+ if __scratch_uses_fsdax; then
case $target in
stripe|linear|log-writes)
;;