Tom Caputi [Thu, 8 Nov 2018 00:59:27 +0000 (19:59 -0500)]
ZTS: Fix and reenable zfs_rename tests
zfs_rename_006_pos has been flaky in the past because it was
missing a call to block_device_wait to ensure the zvols it creates
are present before running dd. Whenever this this happened,
zfs_rename_009_neg would also fail because the first test would
leak a zvol clone that it did not know how to clean up. This patch
fixes the root cause and reenables the test. It also fixes some
minor grammar errors.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #5647
Closes #5648
Closes #8088
Paul Zuchowski [Thu, 8 Nov 2018 00:54:08 +0000 (19:54 -0500)]
ZTS: Fix test zfs_mount_006_pos
For Linux, place a file in the mount point folder so it will be
considered "busy". Fix the while loop so it doesn't rm in
directories above the testdir. Add Linux-specific code to test
overlay on|off.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Zuchowski <pzuchowski@datto.com>
Closes #4990
Closes #8081
Tom Caputi [Wed, 7 Nov 2018 23:46:50 +0000 (18:46 -0500)]
Fix !zilog_is_dirty() assert during ztest
ztest occasionally hits an assert that !zilog_is_dirty() during
zil_close(). This is caused by an interaction between 2 threads.
First, ztest_run() waits for each test thread to complete and
closes the associated dataset as soon as the thread joins. At
the same time, the ztest_vdev_add_remove() test may attempt to
remove the slog, which will open, dirty, and reset the logs on
every dataset in the pool (including those of other threads).
This patch simply ensures that we always join all of the test
threads before closing any datasets.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8094
Tom Caputi [Wed, 7 Nov 2018 23:44:56 +0000 (18:44 -0500)]
Fix divide by zero during indirect split damage
This patch simply ensures that vdev_indirect_splits_damage()
cannot hit a divide by zero exception if a split has no
children with valid data. The normal reconstruction code
path in vdev_indirect_reconstruct_io_done() already has this
check.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8086
Tom Caputi [Wed, 7 Nov 2018 23:44:14 +0000 (18:44 -0500)]
Fix dirtying vdev config on with RO spa
This patch simply corrects an issue where vdev_dtl_reassess()
could attempt to dirty the vdev config even when the spa was
not elligable for writing.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8085
Tom Caputi [Wed, 7 Nov 2018 23:40:24 +0000 (18:40 -0500)]
Replay logs before starting ztest workers
This patch ensures that logs are replayed on all datasets prior
to starting ztest workers. This ensures that the call to
vdev_offline() a log device in ztest_fault_inject() will not fail
due to the log device being required for replay.
This patch also fixes a small issue found during testing where
spa_keystore_load_wkey() does not check that the dataset specified
is an encryption root. This check was present in libzfs, however.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8084
Tom Caputi [Wed, 7 Nov 2018 23:38:10 +0000 (18:38 -0500)]
Fix vdev removal finishing race
This patch fixes a race condition where the end of
vdev_remove_replace_with_indirect(), which holds
svr_lock, would race against spa_vdev_removal_destroy(),
which destroys the same lock and is called asynchronously
via dsl_sync_task_nowait().
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Issue #6900
Closes #8083
Tom Caputi [Wed, 7 Nov 2018 23:33:17 +0000 (18:33 -0500)]
Make vdev_set_deferred_resilver() recursive
vdev_clear() can call vdev_set_deferred_resilver() with a
non-leaf vdev to setup a deferred resilver. However, this
function is currently written to only handle leaf vdevs.
This bug was introduced with deferred resilvers in 80a91e74.
This patch makes this function recursive so that it can find
appropriate vdevs to resilver and set vdev_resilver_deferred
on them.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Issue #7732
Closes #8082
Don Brady [Wed, 7 Nov 2018 01:47:52 +0000 (18:47 -0700)]
Fix libudev dependency in libzutil
ZFS should be able to build without libudev installed. The recent
change for libzutil inadvertently broke that. Make the libudev code
conditional in zutil_import.c to resolve the build failure.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #8097
In order to validate the gang block code ztest is configured to
artificially force a fraction of large blocks to be written as
gang blocks. The default setting chosen for this was to
write 25% of all blocks 32k or larger using gang blocks.
The confluence of an unrealistically large number of gang blocks,
the aggressive fault injection done by ztest, and the split
segment reconstruction logic introduced by device removal has
resulted in the following type of failure:
zdb -bccsv -G -d ... exit code 3
Specifically, zdb was unable to open the pool because it was
unable to reconstruct a damaged block. Manual investigation
of multiple failures clearly showed that the block could be
reconstructed. However, due to the large number of damaged
segments (>35) it could not be done in the allotted time.
Furthermore, the large number of gang blocks was determined
to be the reason for the unrealistically large number of
damaged segments. In order to make this situation less
likely, this change both increases the forced gang block
size to 64k and reduces the frequency to 3% of blocks.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Tom Caputi <tcaputi@datto.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8080
Don Brady [Mon, 5 Nov 2018 19:22:33 +0000 (12:22 -0700)]
Add libzutil for libzfs or libzpool consumers
Adds a libzutil for utility functions that are common to libzfs and
libzpool consumers (most of what was in libzfs_import.c). This
removes the need for utilities to link against both libzpool and
libzfs.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #8050
Richard Elling [Thu, 1 Nov 2018 22:54:55 +0000 (15:54 -0700)]
Update zfs-events.5 with info from PSARC 2009/497
Update zfs-events.5 with info from PSARC 2009/497 regarding ereport fields.
Also updates ZIO_STAGE_* and ZIO_FLAG_* descriptions to match current source.
Reviewed by: loli10K <ezomori.nozomu@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Elling <Richard.Elling@RichardElling.com>
Closes #8057
Paul Zuchowski [Wed, 31 Oct 2018 23:58:43 +0000 (19:58 -0400)]
ZTS: Fix posix ACL tests that should pass
Make sure tests have proper include files. Make sure underlying
"chmod" style permissions don't interfere with ACLs.
Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Zuchowski <pzuchowski@datto.com>
Closes #8069
George Melikov [Wed, 31 Oct 2018 17:00:06 +0000 (20:00 +0300)]
ZTS: change `$(cat)` to `$(<)` for speedup
It's better to use ksh/bash built in methods,
rather than spawn new processes every time.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: John Wren Kennedy <john.kennedy@delphix.com> Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #8071
Matthew Ahrens [Wed, 31 Oct 2018 16:58:17 +0000 (09:58 -0700)]
bpobj_enqueue_subobj() should copy small subobj's
When we delete a snapshot, we consolidate some bpobj's together because
we no longer need to keep their entries in separate buckets. This is
done in constant time by including the "sub" bpobj by reference in the
parent bpobj.
After many snapshots have been deleted, we may have many sub-bpobj's.
Usually, most sub-bpobj's don't contain many BP's. Compared to this
small payload, the sub-bpobj is relatively heavyweight since it is a
object in the MOS. A common scenario on a long-lived pool is for the
vast majority of MOS objects to be small sub-bpobj's.
To improve this situation, when consolidating bpobj's together,
bpobj_enqueue_subobj() can copy the contents of small bpobj's into the
parent, and then delete the enqueued bpobj, rather than including it by
reference. Since this copying is limited in size (to one block), the
consolidation is still constant time, though with a larger constant due
to reading in the one block of the enqueued bpobj.
This idea and mechanism are similar to how we handle "sub-subobj's".
When including a sub-bpobj by reference, if the sub-bpobj itself has
less than a block of sub-sub-bpobj's, the list of sub-sub-bpobj's is
copied to the parent bpobj's list of sub-bpobj's.
Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Paul Zuchowski <pzuchowski@datto.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8053
Issue #7908
Brian Behlendorf [Wed, 31 Oct 2018 16:50:42 +0000 (11:50 -0500)]
Linux 4.20 compat: current_kernel_time()
Commit torvalds/linux@976516404 removed the current_kernel_time()
function (and several others). All callers are expected to use
current_kernel_time64(). Update the gethrestime_sec() wrapper
accordingly.
Reviewed-by: Olaf Faaland <faaland1@llnl.gov> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8074
Md Islam [Tue, 30 Oct 2018 16:47:50 +0000 (12:47 -0400)]
Improve snapshot listing error message
Provide a hint in the error message if listing snapshots for a
single dataset fails.
Using -r is not needed to list all snapshots so requiring it when
listing snapshots for a single dataset makes it confusing. This
change will make the error message more clear.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Md Islam <mdnahian@outlook.com>
Closes #8047
This minor bug was introduced with the port of the feature from
OpenZFS to ZoL. This patch fixes the issue that was caused by
a minor re-ordering from the original code.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Tim Chase <tim@chase2k.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #8001
Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregor Kopka <gregor@kopka.net>
Closes #8058
Brian Behlendorf [Mon, 29 Oct 2018 20:05:14 +0000 (15:05 -0500)]
ZTS: Fix auto_replace_001_pos test
The root cause of these failures is that udev can notify the
ZED of newly created partition before its links are created.
Handle this by allowing an auto-replace to briefly wait until
udev confirms the links exist.
Distill this test case down to its essentials so it can be run
reliably. What we need to check is that:
1) A new disk, in the same physical location, is automatically
brought online when added to the system,
2) It completes the replacement process, and
3) The pool is now ONLINE and healthy.
There is no need to remove the scsi_debug module. After exporting
the pool the disk can be zeroed, removed, and then re-added to the
system as a new disk.
Reviewed by: loli10K <ezomori.nozomu@gmail.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8051
As of Python 3.6, a backslash-character pair that is not a valid
escape sequence now generates a DeprecationWarning. Although this
will eventually become a SyntaxError, that will not be for several
Python releases.
Note 'float_pobj' was simply removed from arcstat.py since it
was entirely unused.
Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8056
Brian Behlendorf [Wed, 24 Oct 2018 21:48:14 +0000 (14:48 -0700)]
Remove zfs_gitrev.h
This generated file was accidentally included in previous commit, 80a91e7, and should not be included in the repository.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed by: Don Brady <don.brady@delphix.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8054
Tom Caputi [Tue, 23 Oct 2018 19:17:18 +0000 (15:17 -0400)]
Fix 2 small bugs with cached dsl_scan_phys_t
This patch corrects 2 small bugs where scn->scn_phys_cached was
not properly updated to match the primary copy when it needed to
be. The first resulted in the pause state not being properly
updated and the second resulted in the cached version being
completely zeroed even if the primary was not.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Mon, 22 Oct 2018 13:54:01 +0000 (09:54 -0400)]
Fix waiting in ztest_device_removal()
spa->spa_vdev_removal is created in a sync task that is initiated
via dsl_sync_task_nowait(). Since the task may not run before
spa_vdev_remove() returns, we must wait at least 1 txg to ensure
that the removal struct has been created.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Fri, 19 Oct 2018 22:10:23 +0000 (18:10 -0400)]
Fix ENXIO from spa_ld_verify_logs() in ztest
This patch fixes a small issue where the zil_check_log_chain()
code path would hit an EBUSY error. This would occur when
2 threads attempted to call metaslab_activate() at the same time.
In this case, the "loser" would receive an error code which should
have been ignored, but was instead floated to the caller. This
ended up resulting in an ENXIO being returned from from
spa_ld_verify_logs().
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Thu, 18 Oct 2018 20:53:27 +0000 (16:53 -0400)]
Fix ztest deadman panic with indirect vdev damage
This patch fixes an issue where ztest's deadman thread would
trigger a panic because reconstructing artifically damaged
blocks would take too long to reconstruct. This patch simply
limits how often ztest inflicts split-block damage and how
many segments it can damage when it does.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Thu, 18 Oct 2018 08:13:07 +0000 (04:13 -0400)]
Fix issue with scanning dedup blocks as scan ends
This patch fixes an issue discovered by ztest where
dsl_scan_ddt_entry() could add I/Os to the dsl scan queues
between when the scan had finished all required work and
when the scan was marked as complete. This caused the scan
to spin indefinitely without ending.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Tue, 16 Oct 2018 21:00:55 +0000 (17:00 -0400)]
Fix lock inversion in txg_sync_thread()
This patch fixes a lock inversion issue in txg_sync_thread() where
the code would attempt hold the spa config lock as a reader while
holding tx->tx_sync_lock. This races with spa_vdev_remove() which
attempts to hold the tx->tx_sync_lock to assign a new tx (via
spa_history_log_internal()) while holding the spa config lock as a
writer.
Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Mon, 15 Oct 2018 19:14:22 +0000 (15:14 -0400)]
Fix dbgmsg printing in ztest and zdb
This patch resolves a problem where the -G option in both zdb and
ztest would cause the code to call __dprintf() to print zfs_dbgmsg
output. This function was not properly wired to add messages to the
dbgmsg log as it is in userspace and so the messages were simply
dropped. This patch also tries to add some degree of distinction to
dprintf() (which now prints directly to stdout) and zfs_dbgmsg()
(which adds messages to an internal list that can be dumped with
zfs_dbgmsg_print()).
In addition, this patch corrects an issue where ztest used a global
variable to decide whether to dump the dbgmsg buffer on a crash.
This did not work because ztest spins up more instances of itself
using execv(), which did not copy the global variable to the new
process. The option has been moved to the ztest_shared_opts_t
which already exists for interprocess communication.
This patch also changes zfs_dbgmsg_print() to use write() calls
instead of printf() so that it will not fail when used in a signal
handler.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
Tom Caputi [Wed, 10 Oct 2018 20:48:33 +0000 (16:48 -0400)]
Fix random ztest_deadman_thread failures
The zloop test has been failing in buildbot for the last few weeks
with various failures in ztest_deadman_thread(). This is due to the
fact that this thread is not stopped when performing pool import /
export tests as it should be. This patch simply corrects this.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #8010
George Melikov [Wed, 24 Oct 2018 03:06:40 +0000 (06:06 +0300)]
Allow use of pool GUID as root pool
It's helpful if there are pools with same names,
but you need to use only one of them.
Main case is twin servers, meanwhile some software
requires the same name of pools (e.g. Proxmox).
Reviewed-by: Kash Pande <kash@tripleback.net> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Igor ‘guardian’ Lidin of Moscow, Russia
Closes #8052
Brian Behlendorf [Wed, 24 Oct 2018 02:53:14 +0000 (19:53 -0700)]
ZTS: Update project quota tests
e2fsprogs v1.44.1, which provides lsattr, added a new attribute
for ext3 called "verity". It is reported after the project quota
flag as a 'V' character in the `lsattr` output.
Update projectid_001_pos.ksh and projecttree_001_pos.ksh to use
a pattern which will match the expected output in both cases.
Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8043
Matthew Ahrens [Mon, 22 Oct 2018 19:23:30 +0000 (12:23 -0700)]
Make gitrev more reliable
In some build methods, the gitrev is unnecessarily set to "unknown".
We can improve this by changing the gitrev to use
`git describe --always --long --dirty`.
This gets the revision even when no tag matches (--always). It prints
the hash even when it exactly matches a tag (--long). And if there are
uncommitted changes, it appends "-dirty", rather than failing (--dirty).
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matthew Thode <prometheanfire@gentoo.org> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8034
Tom Caputi [Fri, 19 Oct 2018 04:06:18 +0000 (00:06 -0400)]
Defer new resilvers until the current one ends
Currently, if a resilver is triggered for any reason while an
existing one is running, zfs will immediately restart the existing
resilver from the beginning to include the new drive. This causes
problems for system administrators when a drive fails while another
is already resilvering. In this case, the optimal thing to do to
reduce risk of data loss is to wait for the current resilver to end
before immediately replacing the second failed drive, which allows
the system to operate with two incomplete drives for the minimum
amount of time.
This patch introduces the resilver_defer feature that essentially
does this for the admin without forcing them to wait and monitor
the resilver manually. The change requires an on-disk feature
since we must mark drives that are part of a deferred resilver in
the vdev config to ensure that we do not assume they are done
resilvering when an existing resilver completes.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: @mmaybee Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #7732
Matthew Thode [Wed, 17 Oct 2018 19:06:05 +0000 (14:06 -0500)]
Allow copy-builtin to work with modified sources
`scripts/make_gitrev.sh` had 'set -e' so if any command failed it would
fail and cause copy-builtin to fail (copy-builtin also has `set -e`.
This commit also simplifies scripts/make_gitrev.sh to always write a
file by using a cleanup function. It also simplifies other areas of
the script as well (making it much shorter).
Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Matthew Thode <mthode@mthode.org>
Closes #8022
Closes #8025
LOLi [Wed, 17 Oct 2018 18:21:07 +0000 (20:21 +0200)]
zpool: allow sharing of spare device among pools
ZFS allows, by default, sharing of spare devices among different pools;
this commit simply restores this functionality for disk devices and
adds an additional tests case to the ZFS Test Suite to prevent future
regression.
Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7999
Matthew Ahrens [Wed, 17 Oct 2018 17:31:38 +0000 (10:31 -0700)]
Linux does not HAVE_SMB_SHARE
Since Linux does not have an in-kernel SMB server, we don't need the
code to manage it.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8032
Matthew Ahrens [Wed, 17 Oct 2018 17:30:08 +0000 (10:30 -0700)]
Linux does not HAVE_DNLC
Since Linux does not have the Directory Name Lookup Cache, we don't need
the code to manage it.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Tim Chase <tim@chase2k.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #8031
bunder2015 [Wed, 17 Oct 2018 17:25:38 +0000 (13:25 -0400)]
Advise users to retain issue/PR templates
Occasionally we get issues and PRs from users who delete the
templates. Advise users that their issues and PRs may be closed if
they do not fill out the templates as we really need this information.
Also updating PR template to drop unneeded approval toggle as we are
now using issue labels for status tracking.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: bunder2015 <omfgbunder@gmail.com>
Closes #8029
Paul Dagnelie [Tue, 16 Oct 2018 18:15:04 +0000 (11:15 -0700)]
Add types to featureflags in zfs
The boolean featureflags in use thus far in ZFS are extremely useful,
but because they take advantage of the zap layer, more interesting data
than just a true/false value can be stored in a featureflag. In redacted
send/receive, this is used to store the list of redaction snapshots for
a redacted dataset.
This change adds the ability for ZFS to store types other than a boolean
in a featureflag. The only other implemented type is a uint64_t array.
It also modifies the interfaces around dataset features to accomodate
the new capabilities, and adds a few new functions to increase
encapsulation.
This functionality will be used by the Redacted Send/Receive feature.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #7981
ilbsmart [Tue, 16 Oct 2018 18:11:24 +0000 (02:11 +0800)]
deadlock between mm_sem and tx assign in zfs_write() and page fault
The bug time sequence:
1. thread #1, `zfs_write` assign a txg "n".
2. In a same process, thread #2, mmap page fault (which means the
`mm_sem` is hold) occurred, `zfs_dirty_inode` open a txg failed,
and wait previous txg "n" completed.
3. thread #1 call `uiomove` to write, however page fault is occurred
in `uiomove`, which means it need `mm_sem`, but `mm_sem` is hold by
thread #2, so it stuck and can't complete, then txg "n" will
not complete.
So thread #1 and thread #2 are deadlocked.
Reviewed-by: Chunwei Chen <tuxoko@gmail.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Grady Wong <grady.w@xtaotech.com>
Closes #7939
Brian Behlendorf [Mon, 15 Oct 2018 23:59:28 +0000 (16:59 -0700)]
Add zts-report.py to python shebang exclusion
Include zts-report.py is the __brp_mangle_shebangs_exclude_from
to resolve build failures in Fedora 28 and newer.
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8020
Issue #7360
We're leaking the dd_clones objects in dsl_dir_destroy_sync. This bug
appears to have been around forever. Thankfully the amount of space
typically involved is tiny.
In addition this adds a mechanism in ZDB to find objects in the MOS
which are leaked (not referenced anywhere).
Porting notes:
* Added dd_crypto_obj to ZDB MOS object leak tracking
Authored by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: George Wilson <george.wilson@delphix.com> Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Ported-by: Matthew Ahrens <mahrens@delphix.com>
OpenZFS-issue: https://illumos.org/issues/9847
Closes #7979
The vdev_checkpoint_sm_object(), vdev_obsolete_sm_object(), and
vdev_obsolete_counts_are_precise() functions assume that the
only way a zap_lookup() can fail is if the requested entry is
missing. While this is the most common cause, it's not the only
cause. Attemping to access a damaged ZAP will result in other
errors.
The most likely scenario for accessing a damaged ZAP is during
an extreme rewind pool import. Under these conditions the pool
is expected to contain damaged objects and the import code was
updated to handle this gracefully. Getting an ECKSUM error from
these ZAPs after the pool in import a far less likely, therefore
the behavior for call paths was not modified.
Reviewed-by: Tim Chase <tim@chase2k.com> Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7809
Closes #7921
Tony Hutter [Fri, 12 Oct 2018 18:13:34 +0000 (11:13 -0700)]
Define timestruc_t for Lustre compatibility
Lustre 2.8 (and possibly other versions) are still using timestruc_t,
which was removed in spl-0.7.10 in favor of inode_timespec_t. Add
in a backwards compatibility #define for timestruc_t so that Lustre
builds.
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #8014
Matt Ahrens [Mon, 1 Oct 2018 22:13:12 +0000 (15:13 -0700)]
OpenZFS 9689 - zfs range lock code should not be zpl-specific
The ZFS range locking code in zfs_rlock.c/h depends on ZPL-specific
data structures, specifically znode_t. However, it's also used by
the ZVOL code, which uses a "dummy" znode_t to pass to the range
locking code.
We should clean this up so that the range locking code is generic
and can be used equally by ZPL and ZVOL, and also can be used by
future consumers that may need to run in userland (libzpool) as
well as the kernel.
Porting notes:
* Added missing sys/avl.h include to sys/zfs_rlock.h.
* Removed 'dbuf is within the locked range' ASSERTs from dmu_sync().
This was needed because ztest does not yet use a locked_range_t.
* Removed "Approved by:" tag requirement from OpenZFS commit
check to prevent needless warnings when integrating changes
which has not been merged to illumos.
* Reverted free_list range lock changes which were originally
needed to defer the cv_destroy() which was called immediately
after cv_broadcast(). With d2733258 this should be safe but
if not we may need to reintroduce this logic.
* Reverts: The following two commits were reverted and squashed in
to this change in order to make it easier to apply OpenZFS 9689.
- d88895a0, which removed the dummy znode from zvol_state
- e3a07cd0, which updated ztest to use range locks
* Preserved optimized rangelock comparison function. Preserved the
rangelock free list. The cv_destroy() function will block waiting
for all processes in cv_wait() to be scheduled and drop their
reference. This is done to ensure it's safe to free the condition
variable. However, blocking while holding the rl->rl_lock mutex
can result in a deadlock on Linux. A free list is introduced to
defer the cv_destroy() and kmem_free() until after the mutex is
released.
Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com> Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
OpenZFS-issue: https://illumos.org/issues/9689
OpenZFS-commit: https://github.com/openzfs/openzfs/pull/680
External-issue: DLPX-58662
Closes #7980
Alek P [Thu, 11 Oct 2018 04:13:13 +0000 (00:13 -0400)]
Fix changelist mounted-dataset iteration
Commit 0c6d093 caused a regression in the inherit codepath.
The fix is to restrict the changelist iteration on mountpoints and
add proper handling for 'legacy' mountpoints
Garrett Fields [Wed, 10 Oct 2018 15:46:22 +0000 (11:46 -0400)]
Check scheduler for "noop" before setting "noop"
Originally code only checked for presence of "/sys/block/$i/queue/
scheduler". "sh: write error: Invalid argument" was produced when
trying to set "noop" on certain devices (eg. virtio) when it isn't
a listed option. This modification continues to check for the presence
of "/sys/block/$i/queue/scheduler" and also checks that it contains
"noop" as an option before setting "noop".
Reviewed-by: Richard Laager <rlaager@wiktel.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Signed-off-by: Garrett Fields <ghfields@gmail.com>
Closes #8004
Paul Dagnelie [Tue, 9 Oct 2018 21:05:13 +0000 (14:05 -0700)]
Refactor dmu_recv into its own file
This change moves the bottom half of dmu_send.c (where the receive
logic is kept) into a new file, dmu_recv.c, and does similarly
for receive-related changes in header files.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #7982
Update arc_release to use arc_buf_size(). This hunk was accidentally
dropped when porting compressed send/recv, 2aa34383b.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #8000
When debugging is enabled and a zfs_refcount_t contains multiple holders
using the same key, but different ref_counts, the wrong reference_t may
be transferred. Add a zfs_refcount_transfer_ownership_many() function,
like the existing zfs_refcount_*_many() functions, to match and transfer
the correct refcount_t;
This issue may occur when using encryption with refcount debugging
enabled. An arc_buf_hdr_t can have references for both the
hdr->b_l1hdr.b_pabd and hdr->b_crypt_hdr.b_rabd both of which use
the hdr as the reference holder. When unsharing the buffer the
p_abd should be transferred.
This issue does not impact production builds because refcount holders
are not tracked.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tom Caputi <tcaputi@datto.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7219
Closes #8000
Matthew Ahrens [Tue, 9 Oct 2018 04:57:02 +0000 (21:57 -0700)]
Create /proc/sys/kernel/spl/gitrev with git hash
The existing mechanisms for determining what code is running in the
kernel do not always correctly report the git hash. The versions
reported there do not reflect changes made since `configure` was run
(i.e. incremental builds do not update the version) and they are
misleading if git tags are not set up properly. This applies to
`modinfo zfs`, `dmesg`, and `/sys/module/zfs/version`.
There are complicated requirements on how the existing version is
generated. Therefore we are leaving that alone, and adding a new
mechanism to record and retrieve the git hash:
`cat /proc/sys/kernel/spl/gitrev`
The gitrev is re-generated at compile time, when running `make`
(including for incremental builds). The value is the output of `git
describe` (or "unknown" if not in a git repo or there are uncommitted
changes).
We're also removing /proc/sys/kernel/spl/version, which was never very
useful.
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Tim Chase <tim@chase2k.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #7931
Closes #7965
Porting notes:
* Renamed zfs_dirty_data_sync_pct to zfs_dirty_data_sync_percent and
changed the type to be consistent with the other dirty module params.
* Updated zfs-module-parameters.5 accordingly.
Authored by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Andrew Stormont <andyjstormont@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru>
Approved by: Robert Mustacchi <rm@joyent.com> Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
OpenZFS-issue: https://illumos.org/issues/9617
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/7928f4ba
Closes #7976
Matthew Ahrens [Thu, 4 Oct 2018 20:11:45 +0000 (13:11 -0700)]
Warn if checking programs are not installed
`make checkstyle` silently skips checks if the required programs are not
installed (e.g. shellcheck, mandoc). Therefore developers may not
realize that they are not getting the full suite of code checks. This
also applies to more specific targets like `make shellcheck`.
We should print a warning message when a check is skipped due to missing
tools.
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Prakash Surya <prakash.surya@delphix.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #7984
Matthew Ahrens [Thu, 4 Oct 2018 20:10:10 +0000 (13:10 -0700)]
Add codecheck make target
We'd like to have tooling that verifies code style, while ignoring the
commit message. For example, code does not need to be signed off in
order to be tested. Current workarounds are to run `git checkstyle` and
ignore the commit message errors, or to run `make cstyle shellcheck
flake8 mancheck testscheck`, and make sure that list stays updated.
Solution is to add a new make target, `codecheck` which does all the
code checks. `checkstyle` is now simply `codecheck` + `commitcheck`.
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #7985
Paul Dagnelie [Thu, 4 Oct 2018 03:16:45 +0000 (20:16 -0700)]
Fix ASSERT macros to not over-expand
The code reuse in the definitions of the ASSERT and VERIFY macros result
in expansion of their arguments before they are stringified, which
produces ugly and undesirable output.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Paul Dagnelie <pcd@delphix.com>
Closes #7884
This change adds a new test case to the zfs-test suite to verify that
when 'zfs destroy' is used on a shared dataset, the dataset will be
unshared after the destroy operation completes.
Reviewed by: loli10K <ezomori.nozomu@gmail.com>
Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Prakash Surya <prakash.surya@delphix.com>
Closes #7941
When using "zfs destroy" on a dataset that is using "sharenfs=on" and
has been automatically exported (by libzfs), the dataset will not be
automatically unexported as it should be. This workflow appears to have
been broken by this commit: 3fd3e56cfd543d7d7a1bf502bfc0db6e24139668
In that change, the "zfs_unmount" function was modified to use the
"mnt.mnt_special" field when determining the mount point that is being
unmounted, rather than "mnt.mnt_mountp".
As a result, when "mntpt" is passed into "zfs_unshare_proto", it's value
is now the dataset name rather than the mountpoint. Thus, when this
value is used with the "is_shared" function (via "zfs_unshare_proto") it
will not find a match (since that function assumes it'll be passed the
mountpoint) and incorrectly reports that the dataset is not shared.
This can be easily reproduced with the following commands:
Tom Caputi [Wed, 3 Oct 2018 16:47:11 +0000 (12:47 -0400)]
Refcounted DSL Crypto Key Mappings
Since native ZFS encryption was merged, we have been fighting
against a series of bugs that come down to the same problem: Key
mappings (which must be present during all I/O operations) are
created and destroyed based on dataset ownership, but I/Os can
have traditionally been allowed to "leak" into the next txg after
the dataset is disowned.
In the past we have attempted to solve this problem by trying to
ensure that datasets are disowned ater all I/O is finished by
calling txg_wait_synced(), but we have repeatedly found edge cases
that need to be squashed and code paths that might incur a high
number of txg syncs. This patch attempts to resolve this issue
differently, by adding a reference to the key mapping for each txg
it is dirtied in. By doing so, we can remove many of the
unnecessary calls to txg_wait_synced() we have added in the past
and ensure we don't need to deal with this problem in the future.
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes #7949
Jerry Jelinek [Thu, 30 Aug 2018 13:13:30 +0000 (13:13 +0000)]
OpenZFS 9700 - ZFS resilvered mirror does not balance reads
Authored by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Sanjay Nadkarni <sanjay.nadkarni@nexenta.com>
Reviewed by: George Wilson <george.wilson@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Approved by: Matthew Ahrens <mahrens@delphix.com> Ported-by: Brian Behlendorf <behlendorf1@llnl.gov>
OpenZFS-issue: https://illumos.org/issues/9700
OpenZFS-commit: https://github.com/openzfs/openzfs/commit/82f63c3c
Closes #7973
Alek P [Tue, 2 Oct 2018 19:30:58 +0000 (15:30 -0400)]
changelist should be able to iter on mounts
Modified changelist_gather()ing for the mountpoint property.
Now instead of iterating on all dataset descendants, we read
/proc/self/mounts and iterate on the mounted descendant datasets only.
Switched changelist implementation from a uu_list_* to uu_avl_* in
order to reduce changlist code-path's worst case time complexity.
Reviewed by: Don Brady <don.brady@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Alek Pinchuk <apinchuk@datto.com>
Closes #7967
Mitigate the likelihood of the newly created volumes being busy
when the 'zfs destroy -r' is issued by waiting for udev to settle.
Since this is not a iron clad fix I've added the test case to
the known list of possible failures and referenced issue #7961.
Finally, in the case this test does fail fix the cleanup logic
so subsequent tests won't incorrectly fail.
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7961
Closes #7962
Tim Schumacher [Mon, 1 Oct 2018 17:42:05 +0000 (19:42 +0200)]
Prefix all refcount functions with zfs_
Recent changes in the Linux kernel made it necessary to prefix
the refcount_add() function with zfs_ due to a name collision.
To bring the other functions in line with that and to avoid future
collisions, prefix the other refcount functions as well.
Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Closes #7963
Matthew Ahrens [Mon, 1 Oct 2018 17:40:11 +0000 (10:40 -0700)]
Remove duplicate macro in dsl_dir.h
The DD_FIELD_LAST_REMAP_TXG macro was added twice (with the same value).
This change removes one of them.
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #7968
Due to a flaw in 4589f3ae the number of unique combinations
could be calculated incorrectly. This could result in the
random combinations reconstruction being used when it would
have been possible to check all combinations.
This change fixes the unique combinations calculation and
simplifies the reconstruction logic by maintaining a per-
segment list of unique copies.
The vdev_indirect_splits_damage() function was introduced
to validate both the enumeration and random reconstruction
logic with ztest. It is implemented such it will never
make a known recoverable block unrecoverable.
Reviewed-by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #6900
Closes #7934
John Gallagher [Wed, 26 Sep 2018 18:08:12 +0000 (11:08 -0700)]
Fixes for procfs files backed by linked lists
There are some issues with the way the seq_file interface is implemented
for kstats backed by linked lists (zfs_dbgmsgs and certain per-pool
debugging info):
* We don't account for the fact that seq_file sometimes visits a node
multiple times, which results in missing messages when read through
procfs.
* We don't keep separate state for each reader of a file, so concurrent
readers will receive incorrect results.
* We don't account for the fact that entries may have been removed from
the list between read syscalls, so reading from these files in procfs
can cause the system to crash.
This change fixes these issues and adds procfs_list, a wrapper around a
linked list which abstracts away the details of implementing the
seq_file interface for a list and exposing the contents of the list
through procfs.
Reviewed by: Don Brady <don.brady@delphix.com> Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: John Gallagher <john.gallagher@delphix.com>
External-issue: LX-1211
Closes #7819
Gregor Kopka [Wed, 26 Sep 2018 18:02:26 +0000 (20:02 +0200)]
Fix flake 8 style warnings
Ran zts-report.py and test-runner.py from ./tests/test-runner/bin/
through the 2to3 (https://docs.python.org/2/library/2to3.html).
Checked the result, fixed:
- 'maxint' -> 'maxsize' that 2to3 missed.
- 'cmp=' parameter for a 'sorted()' with a 'key=' version.
- try/except wrapping of configparser import as there are still
python 2.7 systems that lack a compatibility shim
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregor Kopka <gregor@kopka.net>
Closes #7925
Closes #7952
Tim Schumacher [Wed, 26 Sep 2018 17:29:26 +0000 (19:29 +0200)]
Linux 4.19-rc3+ compat: Remove refcount_t compat
torvalds/linux@59b57717f ("blkcg: delay blkg destruction until
after writeback has finished") added a refcount_t to the blkcg
structure. Due to the refcount_t compatibility code, zfs_refcount_t
was used by mistake.
Resolve this by removing the compatibility code and replacing the
occurrences of refcount_t with zfs_refcount_t.
Reviewed-by: Franz Pletz <fpletz@fnordicwalking.de> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Tim Schumacher <timschumi@gmx.de>
Closes #7885
Closes #7932
Brian Behlendorf [Wed, 26 Sep 2018 16:50:58 +0000 (09:50 -0700)]
Fix small sysfs leak
When zfs_kobj_init() is called with an attr_cnt of 0 only the
kobj->zko_default_attrs is allocated. It subsequently won't
get freed in zfs_kobj_release since the free is wrapped in
a kobj->zko_attr_count != 0 conditional.
Split the block in zfs_kobj_release() to make sure the
kobj->zko_default_attrs are freed in this case.
Additionally, fix a minor spelling mistake and typo in
zfs_kobj_init() which could also cause a leak but in practice
is almost certain not to fail.
Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com> Reviewed-by: Tim Chase <tim@chase2k.com> Reviewed-by: John Gallagher <john.gallagher@delphix.com> Reviewed-by: Don Brady <don.brady@delphix.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7957
Gregor Kopka [Tue, 25 Sep 2018 23:29:16 +0000 (01:29 +0200)]
Zpool iostat: remove latency/queue scaling
Bandwidth and iops are average per second while *_wait are averages
per request for latency or, for queue depths, an instantaneous
measurement at the end of an interval (according to man zpool).
When calculating the first two it makes sense to do
x/interval_duration (x being the increase in total bytes or number of
requests over the duration of the interval, interval_duration in
seconds) to 'scale' from amount/interval_duration to amount/second.
But applying the same math for the latter (*_wait latencies/queue) is
wrong as there is no interval_duration component in the values (these
are time/requests to get to average_time/request or already an
absulute number).
This bug leads to the only correct continuous *_wait figures for both
latencies and queue depths from 'zpool iostat -l/q' being with
duration=1 as then the wrong math cancels itself (x/1 is a nop).
This removes temporal scaling from latency and queue depth figures.
Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregor Kopka <gregor@kopka.net>
Closes #7945
Closes #7694
Brian Behlendorf [Tue, 25 Sep 2018 00:11:25 +0000 (17:11 -0700)]
Fix statfs(2) for 32-bit user space
When handling a 32-bit statfs() system call the returned fields,
although 64-bit in the kernel, must be limited to 32-bits or an
EOVERFLOW error will be returned.
This is less of an issue for block counts since the default
reported block size in 128KiB. But since it is possible to
set a smaller block size, these values will be scaled as
needed to fit in a 32-bit unsigned long.
Unlike most other filesystems the total possible file counts
are more likely to overflow because they are calculated based
on the available free space in the pool. In order to prevent
this the reported value must be capped at 2^32-1. This is
only for statfs(2) reporting, there are no changes to the
internal ZFS limits.
Reviewed-by: Andreas Dilger <andreas.dilger@whamcloud.com> Reviewed-by: Richard Yao <ryao@gentoo.org> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #7927
Closes #7122
Closes #7937
This change simplify the test case removing part of the logic which was
introducing a race condition and thus causing spurious failures: we use
attempt_during_removal() from removal.kshlib instead which has been
observed to be more stable.
Reviewed by: Matthew Ahrens <mahrens@delphix.com> Reviewed-by: John Kennedy <john.kennedy@delphix.com> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7894
Closes #7913
Gregor Kopka [Mon, 24 Sep 2018 17:12:59 +0000 (19:12 +0200)]
Fix flake 8 style warnings
Ran zts-report.py and test-runner.py from ./tests/test-runner/bin/
through the 2to3 (https://docs.python.org/2/library/2to3.html).
Checked the result, fixed:
- 'maxint' -> 'maxsize' that 2to3 missed.
- 'cmp=' parameter for a 'sorted()' with a 'key=' version.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: John Wren Kennedy <jwk404@gmail.com> Signed-off-by: Gregor Kopka <gregor@kopka.net>
Closes #7925
Closes #7929
Since "\001" (ASCII Start Of Header) is not printable this results in
weird characters displayed when inspecting the debug log. This commit
simply removes this superfluous prefix passed to zfs_dbgmsg().
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Richard Laager <rlaager@wiktel.com> Signed-off-by: loli10K <ezomori.nozomu@gmail.com>
Closes #7936
Reviewed-by: Giuseppe Di Natale <guss80@gmail.com> Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Richard Laager <rlaager@wiktel.com> Signed-off-by: DHE <git@dehacked.net>
Closes #7938
This change adds limits to the possible spa_slop_shift values set via
the sysfs interface. Accepted values are from a minimum of 1 to a
maximum of 31 (inclusive): these limits are based on the following
values observed on a 128PB file-vdev test pool:
Richard Yao [Tue, 18 Sep 2018 19:03:47 +0000 (15:03 -0400)]
Add NEWS file
I received a request for a NEWS file. That needs to be handled by Tony
and Brian, but for now, we can at least provide one that provides a link
to github so that users who expect NEWS files from their packages will
know where to go for release information.
Reviewed-by: Neal Gompa <ngompa@datto.com> Reviewed-by: Tony Hutter <hutter2@llnl.gov> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Richard Yao <ryao@gentoo.org>
Closes #7918
Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Reviewed-by: Richard Laager <rlaager@wiktel.com> Signed-off-by: DHE <git@dehacked.net>
Closes #7920
Gregor Kopka [Tue, 18 Sep 2018 15:55:33 +0000 (17:55 +0200)]
Man page fixes - zpool/zfs optional parameters
The man pages for zpool and zfs (get command)
listed the pool/dataset parameter as required,
but these are optional. Fixed that.
Reviewed-by: George Melikov <mail@gmelikov.ru> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Gregor Kopka <gregor@kopka.net>
Closes #7916
Brian Behlendorf [Tue, 18 Sep 2018 00:28:18 +0000 (17:28 -0700)]
Clarify 'zpool remove' restrictions
Update zpool(8) to clarify what type of vdevs may be safely
removed and that the existence of any top-level raidz device
which is part of the primary pool will prevent device removal.
Reviewed by: Matthew Ahrens <mahrens@delphix.com> Signed-off-by: Tim Chase <tim@chase2k.com> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7880
Closes #7893
This change improve the handling of invalid filesystem properties when
specified at pool creation: this is useful when 'zpool create -n'
(dry run) is executed to detect invalid fs-level options (-O) before
the actual command is run.
Brian Behlendorf [Thu, 13 Sep 2018 20:35:09 +0000 (13:35 -0700)]
Add removal_resume_export to zts-report.py
Add the removal_resume_export test case to the possible failure
section of the zts-report.py and reference the Github issue. In
the CI environment this test has proven to be unreliable due to
the way it detects the removal thread. This is a flaw in the test
and not device removal so update the result summary accordingly.
Additionally, increase the allowed timeout in an effort to reduce
the observed rate of false positves.
Reviewed-by: George Melikov <mail@gmelikov.ru> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7895
Issue #7894
projects / zfs / log