Commit Graph

7548 Commits

Author SHA1 Message Date
Rich Ercolani
adeccfea17
Python 3.10 fixes, part 2
There was a fallback case I overlooked in the initial patch, with
a similarly imperfect version extractor.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12045 
Closes #12673
2021-10-29 15:36:01 -07:00
Peter Levine
6ef28c526b
Set DEFAULT_INIT_SHELL to /sbin/openrc-run for Gentoo and Alpine
Gentoo and Alpine always set the rc init scripts' shebang to
#!/sbin/openrc-run, whether or not openrc is installed.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Peter Levine <plevine457@gmail.com>
Closes #12683 
Closes #12692
2021-10-29 15:34:37 -07:00
Tony Hutter
4d4998ea39
vdev_id: Fix PHY sorting
One of our developers noticed a bug in vdev_id where we were incorrectly
sorting PHYs using alphabetical sorting (which usually works) instead
of natural sorting (-v).  For example:

	[port-0:0]# ls -d phy*
	phy-0:10  phy-0:11  phy-0:8  phy-0:9

	[port-0:0]# ls -vd phy*
	phy-0:8  phy-0:9  phy-0:10  phy-0:11

This fixes the issue.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #12699
2021-10-29 15:33:34 -07:00
Fedor Uporov
d5a5ec4693
Remove unused function zvol_set_volblocksize()
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes #12688
2021-10-26 17:07:53 -07:00
Rich Ercolani
6f57f1e382
Make dsl_scan print the pool name in dbgmsg
If you've got multiple scrubs/resilvers going, it's rather helpful
to know which pool each scan line refers to.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes: #12674
2021-10-26 17:24:14 -06:00
Allan Jude
65ad5d1165
spa.c: Replace VERIFY(nvlist_*(...) == 0) with fnvlist_* (#12678)
The fnvlist versions of the functions are fatal if they fail,
saving each call from having to include checking the result.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Allan Jude <allan@klarasystems.com>
2021-10-26 17:15:38 -06:00
Brian Behlendorf
90b77a0364
ZTS: Standardize use of destroy_dataset in cleanup
When cleaning up a test case standardize on using the convention:

    datasetexists $ds && destroy_dataset $ds <flags>

By using 'destroy_dataset' instead of 'log_must zfs destroy' we ensure
that the destroy is retried in the event that a ZFS volume is busy.
This helps ensures ensure tests are fully cleaned up and prevents false
positive test failures on Linux.

Note that all of the tests which used 'zfs destroy' in cleanup have
been updated even if they don't use volumes.  This was done to
clearly establish the expected convention.

Reviewed-by: Rich Ercolani <rincebrain@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 #12663
2021-10-25 15:13:50 -06:00
Rich Ercolani
731fbb5d22
Workaround cloud-init hotplug issue
cloud-init added a hook which triggers on every device add/rm
event, which results in holding open devices for a while after
they're created/destroyed.

So let's shove an exclusion rule for that into the GH workflows
until it gets fixed.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12644
Closes #12669
2021-10-25 11:27:05 -06:00
Ryan Moeller
14b69c0929
FreeBSD: Catch up with recent VFS changes
cn_thread is always curthread.

https://cgit.freebsd.org/src/commit?id=b4a58fbf640409a1e507d9f7b411c83a3f83a2f3
https://cgit.freebsd.org/src/commit?id=2b68eb8e1dbbdaf6a0df1c83b26f5403ca52d4c3

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Alan Somers <asomers@gmail.com>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Closes #12668
2021-10-25 09:46:28 -07:00
Attila Fülöp
7cc5cb8083 pam_zfs_key: malloc and mlock/munlock won't match
mlock(2) and munlock(2) operate on memory pages whereas malloc(3)
does not. So if you munlock(2) a malloced memory region, the whole
page containing it is freed. Since this page may contain another
malloced and mlocked memory region, used as a password buffer by a
concurrent running instance of pam_zfs_key, there is a slight chance
of leaking passwords. By using mmap(2) we avoid such problems since
it will return whole pages on page aligned addresses.

Although the above concern may be mostly academical, it is still
better to use mmap(2) for allocating memory since the FreeBSD
documentation suggests to call mlock(2) and munlock(2) on page
aligned addresses, and other implementations even require it.

While here, remove duplicate code in alloc_pw_string() by calling
alloc_pw_size().

Reviewed-by: Felix Dörre <felix@dogcraft.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #12665
2021-10-22 11:42:34 -07:00
Attila Fülöp
50292e2545 pam_zfs_key: mlock(2) and munlock(2) can fail
Since both syscalls can fail, add error handling, including EAGAIN.

Reviewed-by: Felix Dörre <felix@dogcraft.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #12665
2021-10-22 11:42:23 -07:00
Attila Fülöp
ee7c30b350 pam_zfs_key: change test user name to conform to standards
The useradd(8) command on my system won't accept login names with
uppercase letters in them, so adjust for that.

Reviewed-by: Felix Dörre <felix@dogcraft.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #12665
2021-10-22 11:42:10 -07:00
youzhongyang
ec64fdb93d
Skip snapshot in zfs_iter_mounted()
The intention of the zfs_iter_mounted() is to traverse the dataset
and its descendants, not the snapshots. The current code can cause
a mounted snapshot to be included and thus zfs_open() on the snapshot
with ZFS_TYPE_FILESYSTEM would print confusing message such as "cannot
open 'rpool/fs@snap': snapshot delimiter '@' is not expected here".

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Youzhong Yang <yyang@mathworks.com>
Closes #12447
Closes #12448
2021-10-20 16:07:19 -07:00
Tony Hutter
1886cdfcfb
vdev_id: Fix enclosure_symlinks feature
The vdev_id.conf "enclosure_symlinks" option persistently creates
and maps /dev/by-enclosure symlinks to dynamic /dev/sg* devices.

This patch fixes two issues:

1. The enclosure_symlinks feature was accidentally broken in:

   vdev_id: Support daisy-chained JBODs in multipath mode

2. Even when working, the feature numbered the enclosure
   sequentially rather than by HBA port number.  That meant that
   if a port was down or didn't appear in sysfs, then the
   enclosure_sumlinks numbers would be numbered wrong.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #12660
2021-10-20 15:48:04 -07:00
felixdoerre
6cb5e1e759
libshare: nfs: pass through ipv6 addresses in bracket notation
Recognize when the host part of a sharenfs attribute is an ipv6
Literal and pass that through without modification.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Felix Dörre <felix@dogcraft.de>
Closes: #11171
Closes #11939
Closes: #1894
2021-10-20 10:40:00 -07:00
Toomas Soome
a4cecfbdc9
zpool should call zfs_nicestrtonum() with non-NULL handle
When zfs_nicestrtonum() is called and there will be an error,
the message is left in libzfs handle, if provided. We can use
this message, to provide better feedback for user.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Toomas Soome <tsoome@me.com>
Closes #12650
2021-10-20 10:34:34 -07:00
Pawel Jakub Dawidek
a95c82bed8
Remove code duplication
Remove code duplication by moving code responsible for partial block
zeroing to a separate function: dnode_partial_zero().

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Closes #12627
2021-10-18 16:50:33 -07:00
Francesco Mazzoli
fd778e44c8
Notify on UNAVAIL statechange
`UNAVAIL` is maybe not quite as concerning as `DEGRADED`, but still an
event of notice, in my opinion. For example it is triggered when a
drive goes missing.

Reviewed-by: Don Brady <don.brady@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Francesco Mazzoli <f@mazzo.li>
Closes #12629 
Closes #12630
2021-10-15 15:57:23 -07:00
Teodor Spæren
01b572bc62
zdb: fix overflow of time estimation
The calculation of estimated time remaining in zdb -cc could overflow,
as reported in #10666. This patch fixes this, by using uint64_t instead
of ints in the calculations.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Teodor Spæren <teodor@sparen.no>
Closes #10666 
Closes #12610
2021-10-15 15:55:34 -07:00
Pawel Jakub Dawidek
afbc617921
Remove FreeBSD's local copy of the dmu_buf_hold_array() function
Make the main dmu_buf_hold_array() function non-static.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Closes #12628
2021-10-13 11:01:01 -07:00
Teodor Spæren
d785245857
zio: use unsigned values for enum
cppcheck complains about the use of 1 << 31, because enums are signed
ints which cannot represent this. As discussed in issue #12611, it
appears that with C99, we can use an unsiged int for the enum, on most
platforms.

I've crafted this commit for just the include/sys/zio.h header, as it's
the only one with a shift of 31. If this is something we want to adopt
in the rest of the project, I will go through and apply it to the rest
of the project.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Signed-off-by: Teodor Spæren <teodor@sparen.no>
Closes #12611 
Closes #12615
2021-10-11 10:58:06 -07:00
Brian Behlendorf
280d0f0ce4
Export minimal zfs_refcount interfaces
Lustre makes light use of the zfs_refcount interfaces which
isn't a problem when using a non-debug build of OpenZFS. However,
when debugging is enabled the required symbols are not exported.

Reviewed-by: Olaf Faaland <faaland1@llnl.gov>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12613
2021-10-11 10:54:39 -07:00
Brian Behlendorf
648445e007
ZTS: Add known exceptions
Add the following test failures to the exception list for FreeBSD
to ensure we notice new unexpected failures.

   pool_checkpoint/checkpoint_big_rewind
   pool_checkpoint/checkpoint_indirect

And the following for Linux.

   zvol/zvol_misc/zvol_misc_snapdev

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #12621
Issue #12622
Issue #12623
Closes #12624
2021-10-11 10:52:32 -07:00
Brian Behlendorf
72f06d01b5
ZTS: deadman_sync fix
In the CI environment it's possible for events to be slightly
delayed resulting in 4, instead of 5, events appearing in the
log file.  This isn't a problem and should be considered a
success to avoid false positive test results.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12625
2021-10-11 10:49:13 -07:00
nachtgeist
a5b464263b
initramfs: use correct dataset for rootfs on rollback=1
When booting with root=zfs:rpool/myrootfs@foosnapshot rollback=1,
myrootfs and its descendants get rolled back to foosnapshot, however
ZFS_BOOTFS still contains myrootfs@foosnapshot instead of the
actually desired value of myrootfs.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Daniel Reichelt <hacking@nachtgeist.net>
Closes #12585 
Closes #12586
2021-10-08 11:16:31 -07:00
Ryan Moeller
97bbeeb938
Fail invalid incremental recursive send gracefully
zfs send -R -i snap1 pool/ds@snap1 is an invalid invocation of zfs send
because the incremental source and target snapshots are the same.  We
have an error message for this condition, but we don't make it there
because of a failed assert while iterating through the dataset's
snapshots.

Check for NULL to avoid the assert so we can make it to the error
message.

Test this form of invalid send invocation in rsend tests.  Fix the
rsend_016_neg test while here: log_neg itself doesn't fail the test,
and writing to /dev/null is not supported on all Linux kernels.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11121 
Closes #12533
2021-10-08 11:14:26 -07:00
Rich Ercolani
9d1407e8f2
Correct refcount_add in dmu_zfetch
refcount_add_many(foo,N) is not the same as
for (i=0; i < N; i++) { refcount_add(foo); }

Unfortunately, this is only actually true with debug kernels and
reference_tracking_enable=1.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12589 
Closes #12602
2021-10-08 11:10:34 -07:00
Valmiky Arquissandas
2d02bba23d
arcstat: Fix integer division with python3
The arcstat script requests compatibility with python2 and python3, but
PEP 238 modified the / operator and results in erroneous output when
run under python3.

This commit replaces instances of / with //, yielding the expected
result in both versions of Python.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Valmiky Arquissandas <foss@kayvlim.com>
Closes #12603
2021-10-08 09:32:27 -06:00
Brian Behlendorf
514498fef6
Simplify and document OpenZFS library dependencies
For those not already familiar with the code base it can be a
challenge to understand how the libraries are laid out.  This
has sometimes resulted in functionality being added in the
wrong place.  To help avoid that in the future this commit
documents the high-level dependencies for easy reference in
lib/Makefile.am.  It also simplifies a few things.

- Switched libzpool dependency on libzfs_core to libzutil.
  This change makes it clear libzpool should never depend
  on the ioctl() functionality provided by libzfs_core.

- Moved zfs_ioctl_fd() from libzutil to libzfs_core and
  renamed it lzc_ioctl_fd().  Normal access to the kmods
  should all be funneled through the libzfs_core library.
  The sole exception is the pool_active() which was updated
  to not use lzc_ioctl_fd() to remove the libzfs_core
  dependency.

- Removed libzfs_core dependency on libzutil.

- Removed the lib/libzfs/os/freebsd/libzfs_ioctl_compat.c
  source file which was all dead code.

- Removed libzfs_core dependency from mkbusy and ctime
  test utilities.  It was only needed for some trivial
  wrapper functions and that code is easy to replicate
  to shed the unneeded dependency.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Don Brady <don.brady@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12602
2021-10-07 11:31:26 -06:00
Serapheim Dimitropoulos
48df24d4ce
Remove zdb and libzpool from initramfs image
= Motivation

At Delphix we are heavy users of kernel crash dumps that are captured
through a crash kernel that is spawned whenever the main kernel panics.
The way that this works internally is that a certain amount of memory is
reserved while the main system is running so the initramfs of the crash
kernel can be loaded when a panic occurs.

In order to keep reserved memory at minimum we've been historically
trying to identify the binaries that are part of the kernel's initramfs
that are big and finding ways of either making them smaller or do not
include them in the initramfs image. An example is always stripping the
DWARF info of the ZFS kernel module copy that is included in the
initramfs image of both our running and our crash kernel (the difference
in size there is 76MB vs 4MB).

We've recently identified that libzpool has been the largest binary in
our initramfs images - currently sized around 17MB.

= This Patch

The ZFS scripts do not explicitly copy libzpool to initramfs. They copy
zdb which pulls in libzpool as a dependency. Given that both zdb and
libzpool are not really essential for initramfs (e.g. we'll still have
access to the once the root filesystem is unpacked) this patch removes
them from initramfs.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Closes #12616
2021-10-07 10:52:03 -06:00
Rich Ercolani
543ab04cc3
Document additional -c caveat
One might expect "send data as it is on disk, and cannot trigger
compression changes" to imply "does not attempt to compress data
that was not compressed on the sender."

One would be mistaken.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12570
2021-10-05 11:48:17 -07:00
Tony Hutter
2a8430a260
Rescan enclosure sysfs path on import
When you create a pool, zfs writes vd->vdev_enc_sysfs_path with the
enclosure sysfs path to the fault LEDs, like:

    vdev_enc_sysfs_path = /sys/class/enclosure/0:0:1:0/SLOT8

However, this enclosure path doesn't get updated on successive imports
even if enclosure path to the disk changes.  This patch fixes the issue.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #11950 
Closes #12095
2021-10-04 12:32:16 -07:00
Rich Ercolani
aad91df075
Reject zfs send -RI with nonexistent fromsnap
Right now, zfs send -I dataset@nonexistent dataset@existent fails, but
zfs send -RI dataset@nonexistent dataset@existent does not.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12574
Closes #12575
2021-10-04 10:17:30 -07:00
Attila Fülöp
60b618a967
ZFS: Remove a redundant if condition (#12598)
Commit 0c03d21ac9 left in a redundant if condition while
removing some code. Just remove it.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #12598
2021-10-02 12:50:57 -06:00
José Luis Salvador Rufo
ed3a3bdb0d
Proper support for DESTDIR and INSTALL_MOD_PATH
The environment variables DESTDIR and INSTALL_MOD_PATH must
be mutually exclusive.

https://www.gnu.org/prep/standards/html_node/DESTDIR.html
https://www.kernel.org/doc/Documentation/kbuild/modules.txt

This issue was discussed in this Buildroot thread:
https://lists.buildroot.org/pipermail/buildroot/2021-August/621350.html

I saw this behavior in other different projects, as:

- Yocto Project:
  https://www.yoctoproject.org/pipermail/meta-freescale/2013-August/004307.html

- Google IA Coral:
  https://coral.googlesource.com/linux-imx-debian/+/refs/heads/master/debian/rules

For the above reasons, INSTALL_MOD_PATH will be set as DESTDIR
by default.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: José Luis Salvador Rufo <salvador.joseluis@gmail.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
Closes #12577
2021-10-01 10:44:34 -07:00
Ryan Moeller
96ad227a9d
ZTS: Minimize udev_wait in zvol_misc tests
The zvol_misc tests, in particular zvol_misc_volmode, make use of a
common udev_wait function to wait for zvol devices in /dev to quiesce
on Linux.  On other platforms this function currently only sleeps for
one second before returning.  This is insufficient, and
zvol_misc_volmode has been flaky on FreeBSD as a result.

Replace udev_wait with block_device_wait, passing through the optional
device parameter where possible.  Rearrange a few checks to strengthen
the verifications we are making and avoid unnecessarily sleeping.  We
must keep udev_wait in a couple places to pass in Github CI workflows.
Remove zvol_misc_volmode from the maybe failing tests on FreeBSD in
zts-report.py.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #12583
2021-10-01 09:36:02 -06:00
Érico Nogueira Rolim
ce2bdcedf5
libspl: fix warning about missing spl_pagesize declaration
Though it's unlikely anyone will alter its signature, avoids any
possible type mismatch.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Érico Nogueira <erico.erc@gmail.com>
Closes #12567
2021-09-24 16:59:26 -06:00
John Wren Kennedy
df5ea74ff6
Assorted parameter changes for performance tests
* Add async runs for sequential_writes, random_readwrite_fixed and
  random_writes
* Remove some larger block sizes that give similar results to others
* Remove nthreads == 4 from random_writes_zil test

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: John Kennedy <john.kennedy@delphix.com>
Closes #12576
2021-09-21 16:17:36 -06:00
Rich Ercolani
59eab1093a
Handle partial reads in zfs_read
Currently, dmu_read_uio_dnode can read 64K of a requested 1M in one
loop, get EFAULT back from zfs_uiomove() (because the iovec only holds
64k), and return EFAULT, which turns into EAGAIN on the way out. EAGAIN
gets interpreted as "I didn't read anything", the caller tries again
without consuming the 64k we already read, and we're stuck.

This apparently works on newer kernels because the caller which breaks
on older Linux kernels by happily passing along a 1M read request and a
64k iovec just requests 64k at a time.

With this, we now won't return EFAULT if we got a partial read.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12370 
Closes #12509
Closes #12516
2021-09-20 10:30:50 -07:00
Jorgen Lundman
1d901c3ee5
Upstream: unmount snapshots before destroying them on macOS
Add function zfs_destroy_snaps_nvl_os() call. The main issue is that
macOS needs to unmount any mounted snapshots before they can be
destroyed. Other platforms can handle this in the kernel, but sending
a storm of zed events to unmount seems undesirable when we can do it
in userland to start with.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Co-authored-by: ilovezfs <ilovezfs@icloud.com>
Closes #12550
2021-09-20 09:29:59 -06:00
Rich Ercolani
8a3fe59c03
Added test for being able to read various variants of zstd
As detailed in #12022 and #12008, it turns out the current zstd
implementation is quite nonportable, and results in various
configurations of ondisk header that only each platform can read.

So I've added a test which contains a dataset with a file written by
Linux/x86_64 and one written by FBSD/ppc64.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #12030
2021-09-20 09:08:20 -06:00
Alexander Motin
139690d6c3
Really zero the zero page
While switching abd_zero_buf allocation KPI I've missed the fact
that kmem_zalloc() zeroed the allocation, while kmem_cache_alloc()
does not.  Add explicit bzero() after it.

I don't think it should have caused real problems, but leaking one
memory page content all over the pool is not good.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Closes #12569
2021-09-17 10:17:18 -07:00
George Amanakis
2a49ebbb4d
Avoid panic in case of pool errors and missing L2ARC
In case an ARC buffer is allocated only on L2ARC, and there are
underlying errors in a pool with the cache device in faulty state, a
panic can occur in arc_read_done()->arc_hdr_destroy()->
arc_hdr_l2arc_destroy()->arc_hdr_clear_flags() when trying to free
the ARC buffer.

Fix this by discarding the buffer's identity in arc_hdr_destroy(), in
case the buffer is not empty, before calling arc_hdr_l2hdr_destroy().

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: George Amanakis <gamanakis@gmail.com>
Closes #12392
2021-09-16 09:40:15 -07:00
Brian Behlendorf
6065740811
Linux 5.14 compat: META
Increase the Linux-Maximum version in the META file to 5.14.
All of the required compatibility patches have been merged
and the 5.14 kernel has been officially released.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12565
2021-09-15 14:09:31 -07:00
Allan Jude
4a1195ca50
Temporarily use root credentials to mount snapshots in .zfs
When mounting a snapshot in the .zfs/snapshots control directory,
temporarily assume roots credentials to perform the VFS_MOUNT().

This allows regular users and users inside jails to access these
snapshots.

The regular usermount code is not helpful here, since it requires
that the user performing the mount own the mountpoint, which won't
be the case for .zfs/snapshot/<snapname>

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Allan Jude <allan@klarasystems.com>
Sponsored-By: Modirum MDPay
Sponsored-By: Klara Inc.
Closes #11312
2021-09-14 17:10:00 -06:00
Brian Behlendorf
6954c22f35
Use fallthrough macro
As of the Linux 5.9 kernel a fallthrough macro has been added which
should be used to anotate all intentional fallthrough paths.  Once
all of the kernel code paths have been updated to use fallthrough
the -Wimplicit-fallthrough option will because the default.  To
avoid warnings in the OpenZFS code base when this happens apply
the fallthrough macro.

Additional reading: https://lwn.net/Articles/794944/

Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12441
2021-09-14 10:17:54 -06:00
Jorgen Lundman
7443299fe0
Iterate encrypted clones at zvol_create_minor
Userland figures out which encryption-root keys are required to load,
and issues ZFS_IOC_LOAD_KEY.
The tail section of spa_keystore_load_wkey() will call
zvol_create_minors() on the encryption-root object.

Any clones of the encrypted zvol will not be plumbed. This commits
adds additional logic to detect if zvol has clones, and is encrypted,
then adds these to the list of zvols to call zvol_create_minors() on.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Closes #12471
2021-09-13 13:27:07 -07:00
Arun KV
f82f0279ed
Fixed data integrity issue when underlying disk returns error
Errors in zil_lwb_write_done() are not propagated to
zil_lwb_flush_vdevs_done() which can result in zil_commit_impl()
not returning an error to applications even when zfs was not able
to write data to the disk.

Remove the ZIO_FLAG_DONT_PROPAGATE flag from zio_rewrite() to
allow errors to propagate and consolidate the error handling for
flush and write errors to a single location (rather than having
error handling split between the "write done" and "flush done"
handlers).

Reviewed-by: George Wilson <gwilson@delphix.com>
Reviewed-by: Prakash Surya <prakash.surya@delphix.com>
Signed-off-by: Arun KV <arun.kv@datacore.com>
Closes #12391
Closes #12443
2021-09-13 13:02:39 -07:00
Brian Behlendorf
695d4ae815
ZTS: Waiting for zvols to be available
This is a follow up patch for PR #12515 which addresses some
additional ZTS tests which are unreliable are should explicitly
wait for the required zvols to be available.

Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: @Theo13111
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12553
2021-09-13 12:18:01 -07:00
Brian Behlendorf
b9ec4a15e5
Verify embedded blkptr's in arc_read()
The block pointer verification check in arc_read() should also
cover embedded block pointers.  While highly unlikely, accessing
a damaged block pointer can result in panic.  To further harden
the code extend the existing check to include embedded block
pointers and add a comment explaining the rational for this
sanity check.  Lastly, correct a flaw in zfs_blkptr_verify()
so the error count is checked even when checking a untrusted
config to verify the non-pool-specific portions of a block
pointer.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Tony Nguyen <tony.nguyen@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #12535
2021-09-09 19:02:07 -06:00