diff options
| author | Brian Behlendorf <[email protected]> | 2021-12-22 11:05:07 -0800 |
|---|---|---|
| committer | Tony Hutter <[email protected]> | 2022-02-16 17:58:55 -0800 |
| commit | c454e46336c31d3fe2c6491c57b1e71963ca7ed6 (patch) | |
| tree | 7b57090b10050430f7ae40a1443f0d9a75544dbf /tests/zfs-tests | |
| parent | 306cccca274d2af19bbfa76452249359db00a832 (diff) | |
ZTS: Fix rollback_003_pos.ksh
Under Linux when rolling back a mounted filesystem negative dentries
may not be dropped from the cache. This can result in an ENOENT
being incorrectly returned on first access. Issuing a `df` before
the unmount results in the negative dentries being invalidated and
side steps the issue.
This is solely a workaround for the test case on Linux and not
correct behavior. The core issue of invalidating negative dentries
needs to be handled with a kernel side change. This is being
tracked as issue #6143.
Reviewed-by: George Melikov <[email protected]>
Reviewed-by: John Kennedy <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #12898
Issue #6143
Diffstat (limited to 'tests/zfs-tests')
| -rw-r--r-- | tests/zfs-tests/tests/functional/rsend/rsend.kshlib | 7 | ||||
| -rwxr-xr-x | tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh | 17 |
2 files changed, 17 insertions, 7 deletions
diff --git a/tests/zfs-tests/tests/functional/rsend/rsend.kshlib b/tests/zfs-tests/tests/functional/rsend/rsend.kshlib index 8cd35e4af..516d41263 100644 --- a/tests/zfs-tests/tests/functional/rsend/rsend.kshlib +++ b/tests/zfs-tests/tests/functional/rsend/rsend.kshlib @@ -121,6 +121,13 @@ function cleanup_pool log_must rm -rf $BACKDIR/* if is_global_zone ; then + # + # Linux: Issuing a `df` seems to properly force any negative + # dcache entries to be invalidated preventing failures when + # accessing the mount point. Additional investigation required. + # + # https://github.com/openzfs/zfs/issues/6143 + # log_must df >/dev/null log_must_busy zfs destroy -Rf $pool else diff --git a/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh b/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh index 59e7c110d..036e71410 100755 --- a/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh +++ b/tests/zfs-tests/tests/functional/snapshot/rollback_003_pos.ksh @@ -92,6 +92,15 @@ log_note "Verify rollback of multiple nested file systems succeeds." log_must zfs snapshot $TESTPOOL/$TESTFILE@$TESTSNAP log_must zfs snapshot $SNAPPOOL.1 +# +# Linux: Issuing a `df` seems to properly force any negative dcache entries to +# be invalidated preventing failures when accessing the mount point. Additional +# investigation required. +# +# https://github.com/openzfs/zfs/issues/6143 +# +log_must df >/dev/null + export __ZFS_POOL_RESTRICT="$TESTPOOL" log_must zfs unmount -a log_must zfs mount -a @@ -100,12 +109,6 @@ unset __ZFS_POOL_RESTRICT log_must touch /$TESTPOOL/$TESTFILE/$TESTFILE.1 log_must zfs rollback $SNAPPOOL.1 - -# -# Workaround for issue #6143. Issuing a `df` seems to properly force any -# negative dcache entries to be invalidated preventing subsequent failures -# when accessing the mount point. Additional investigation required. -# -log_must df +log_must df >/dev/null log_pass "Rollbacks succeed when nested file systems are present." |