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Fix out-of-order ZIL txtype lost on hardlinked files

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We should only call zil_remove_async when an object is removed. However,
in current implementation, it is called whenever TX_REMOVE is called. In
the case of hardlinked file, every unlink will generate TX_REMOVE and
causing operations to be dropped even when the object is not removed.

We fix this by only calling zil_remove_async when the file is fully
unlinked.

Reviewed-by: George Wilson <gwilson@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Prakash Surya <prakash.surya@delphix.com>
Signed-off-by: Chunwei Chen <david.chen@nutanix.com>
Closes #8769
Closes #9061
This commit is contained in:
Chunwei Chen
2019-08-13 20:21:27 -07:00
committed by Brian Behlendorf
parent 475ebd763a
commit 8e556c5ebc
5 changed files with 27 additions and 15 deletions
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tests/zfs-tests/tests/functional/slog/slog_replay_fs.ksh
+8
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@@ -160,6 +160,14 @@ log_must attr -qs fileattr -V HelloWorld /$TESTPOOL/$TESTFS/xattr.file
log_must attr -qs tmpattr -V HelloWorld /$TESTPOOL/$TESTFS/xattr.file
log_must attr -qr tmpattr /$TESTPOOL/$TESTFS/xattr.file
# TX_WRITE, TX_LINK, TX_REMOVE
# Make sure TX_REMOVE won't affect TX_WRITE if file is not destroyed
log_must dd if=/dev/urandom of=/$TESTPOOL/$TESTFS/link_and_unlink bs=128k \
count=8
log_must ln /$TESTPOOL/$TESTFS/link_and_unlink \
/$TESTPOOL/$TESTFS/link_and_unlink.link
log_must rm /$TESTPOOL/$TESTFS/link_and_unlink.link
#
# 4. Copy TESTFS to temporary location (TESTDIR/copy)
#