Commit Graph

918 Commits

Author SHA1 Message Date
Andrea Gelmini
bf169e9f15 Fix various typos
Correct an assortment of typos throughout the code base.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Closes #11774
2021-04-02 18:52:15 -07:00
Brian Behlendorf
fe6babced2
Bump libzfs.so and libzpool.so versions
Bump the library versions as advised by the libtool guidelines.

https://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html

Two new functions were added but no existing functions were changed,
so we increase the version and the age (version:revision:age).

Added functions (2):
- boolean_t zpool_is_draid_spare(const char *);
- zpool_compat_status_t zpool_load_compat(const char *,
      boolean_t *, char *, char *);

Additionally bump the libzpool.so version information.  This library
is for internal use but we still want to update the version to track
major changes to the interfaces.

The libzfsbootenv, libuutil, libnvpair and libzfs_core libraries
have not been updated.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11817
2021-04-01 16:53:05 -07:00
Matthew Ahrens
b85f47efd0
When specifying raidz vdev name, parity count should match
When specifying the name of a RAIDZ vdev on the command line, it can be
specified as raidz-<vdevID> or raidzP-<vdevID>.
e.g. `zpool clear poolname raidz-0` or `zpool clear poolname raidz2-0`

If the parity is specified in the vdev name, it should match the actual
parity of that RAIDZ vdev, otherwise the command should fail.  This
commit makes it so.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Stuart Maybee <stuart.maybee@comcast.net>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11742
2021-03-26 11:12:22 -07:00
Jessica Clarke
ef977fce66
Support running FreeBSD buildworld on Arm-based macOS hosts
Arm-based Macs are like FreeBSD and provide a full 64-bit stat from the
start, so have no stat64 variants. Thus, define stat64 and fstat64 as
aliases for the normal versions.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Jessica Clarke <jrtc27@jrtc27.com>
Closes #11771
2021-03-26 10:45:12 -07:00
Andrea Gelmini
8a915ba1f6
Removed duplicated includes
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Closes #11775
2021-03-22 12:34:58 -07:00
George Wilson
0936981d86
zpool import cachefile improvements
Importing a pool using the cachefile is ideal to reduce the time
required to import a pool. However, if the devices associated with
a pool in the cachefile have changed, then the import would fail.
This can easily be corrected by doing a normal import which would
then read the pool configuration from the labels.

The goal of this change is make importing using a cachefile more
resilient and auto-correcting. This is accomplished by having
the cachefile import logic automatically fallback to reading the
labels of the devices similar to a normal import. The main difference
between the fallback logic and a normal import is that the cachefile
import logic will only look at the device directories that were
originally used when the cachefile was populated. Additionally,
the fallback logic will always import by guid to ensure that only
the pools in the cachefile would be imported.

External-issue: DLPX-71980
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Wilson <gwilson@delphix.com>
Closes #11716
2021-03-12 15:42:27 -08:00
Don Brady
f5ada6538d
Return finer grain errors in libzfs unmount_one
Added errno mappings to unmount_one() in libzfs.  Changed do_unmount() 
implementation to return errno errors directly like is done for 
do_mount() and others.

Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #11681
2021-03-08 08:46:45 -08:00
James Wah
92fb29b9f9
Don't bomb out when using keylocation=file://
Avoid following the error path when the operation in fact succeeded.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: James Wah <james@laird-wah.net>
Closes #11651
2021-03-03 08:28:49 -08:00
Martin Matuška
03ef8f09e1
Add missing checks for unsupported features
After 35ec517 it has become possible to import ZFS pools witn an
active org.illumos:edonr feature on FreeBSD, leading to a panic.

In addition, "zpool status" reported all pools without edonr
as upgradable and "zpool upgrade -v" reported edonr in the list
of upgradable features.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Martin Matuska <mm@FreeBSD.org>
Closes #11653
2021-02-27 17:16:02 -08:00
Cedric Maunoury
b9c07ec71b
send_iterate_snap : doall send without fromsnap
The behavior of a NULL fromsnap was inadvertently changed for a doall
send when the send/recv logic in libzfs was updated.  Restore the
previous behavior by correcting send_iterate_snap() to include all
the snapshots in the nvlist for this case. 

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Cedric Maunoury <cedric.maunoury@gmail.com>
Closes #11608
2021-02-24 09:48:58 -08:00
Tony Hutter
7e56b05058
Better zfs_get_enclosure_sysfs_path() enclosure support
A multpathed disk will have several 'underlying' paths to the disk.  For
example, multipath disk 'dm-0' may be made up of paths:
/dev/{sda,sdb,sdc,sdd}.  On many enclosures those underlying sysfs
paths will have a symlink back to their enclosure device entry
(like 'enclosure_device0/slot1').  This is used by the
statechange-led.sh script to set/clear the fault LED for a disk, and
by 'zpool status -c'.

However, on some enclosures, those underlying paths may not all have
symlinks back to the enclosure device.  Maybe only two out of four
of them might.

This patch updates zfs_get_enclosure_sysfs_path() to favor returning
paths that have symlinks back to their enclosure devices, rather
than just returning the first path.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #11617
2021-02-20 20:17:45 -08:00
Christian Schwarz
edc508ac0b libzpool: set_global_var: refactor to not modify 'arg'
Also fixes leak of the dlopen handle in the error case.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11602
2021-02-19 22:45:04 -08:00
Christian Schwarz
b5fffa1d29 libzpool: set_global_var: fix endianness handling (fixes zdb -o )
Without this patch I get the error

  Setting global variables is only supported on little-endian systems

when using `zdb -o` on my amd64 machine.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11602
2021-02-19 22:44:05 -08:00
Ryan Moeller
64e0fe14ff
Restore FreeBSD resource usage accounting
Add zfs_racct_* interfaces for platform-dependent read/write accounting.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11613
2021-02-19 22:34:33 -08:00
Colm
658fb8020f
Add "compatibility" property for zpool feature sets
Property to allow sets of features to be specified; for compatibility
with specific versions / releases / external systems. Influences
the behavior of 'zpool upgrade' and 'zpool create'. Initial man
page changes and test cases included.

Brief synopsis:

zpool create -o compatibility=off|legacy|file[,file...] pool vdev...

compatibility = off : disable compatibility mode (enable all features)
compatibility = legacy : request that no features be enabled
compatibility = file[,file...] : read features from specified files.
Only features present in *all* files will be enabled on the
resulting pool. Filenames may be absolute, or relative to
/etc/zfs/compatibility.d or /usr/share/zfs/compatibility.d (/etc
checked first).

Only affects zpool create, zpool upgrade and zpool status.

ABI changes in libzfs:

* New function "zpool_load_compat" to load and parse compat sets.
* Add "zpool_compat_status_t" typedef for compatibility parse status.
* Add ZPOOL_PROP_COMPATIBILITY to the pool properties enum
* Add ZPOOL_STATUS_COMPATIBILITY_ERR to the pool status enum

An initial set of base compatibility sets are included in
cmd/zpool/compatibility.d, and the Makefile for cmd/zpool is
modified to install these in $pkgdatadir/compatibility.d and to
create symbolic links to a reasonable set of aliases.

Reviewed-by: ericloewe
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Colm Buckley <colm@tuatha.org>
Closes #11468
2021-02-17 21:30:45 -08:00
Alan Somers
6b2e7203ae
Fix a resource leak in uu_avl_pool_destroy
Need to destroy the pthread mutex created in uu_avl_pool_create.

https://svnweb.freebsd.org/base?view=revision&revision=262912

Obtained from: FreeBSD
Sponsored by:	Spectra Logic Corporation
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alan Somers <asomers@gmail.com>
Closes #11528
2021-01-26 19:39:28 -08:00
Brian Behlendorf
0e6c493fec cppcheck: integrete cppcheck
In order for cppcheck to perform a proper analysis it needs to be
aware of how the sources are compiled (source files, include
paths/files, extra defines, etc).  All the needed information is
available from the Makefiles and can be leveraged with a generic
cppcheck Makefile target.  So let's add one.

Additional minor changes:

* Removing the cppcheck-suppressions.txt file.  With cppcheck 2.3
  and these changes it appears to no longer be needed.  Some inline
  suppressions were also removed since they appear not to be
  needed.  We can add them back if it turns out they're needed
  for older versions of cppcheck.

* Added the ax_count_cpus m4 macro to detect at configure time how
  many processors are available in order to run multiple cppcheck
  jobs.  This value is also now used as a replacement for nproc
  when executing the kernel interface checks.

* "PHONY =" line moved in to the Rules.am file which is included
  at the top of all Makefile.am's.  This is just convenient becase
  it allows us to use the += syntax to add phony targets.

* One upside of this integration worth mentioning is it now allows
  `make cppcheck` to be run in any directory to check that subtree.

* For the moment, cppcheck is not run against the FreeBSD specific
  kernel sources.  The cppcheck-FreeBSD target will need to be
  implemented and testing on FreeBSD to support this.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11508
2021-01-26 16:12:26 -08:00
Brian Behlendorf
6fc1ce0723 cppcheck: resolve double free
The double free reported for the realloc() failure branch is a
false positive.  It should be resolved in cppcheck 2.4 but for
the benefit of older versions we supress the warning.

    https://trac.cppcheck.net/ticket/9292

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11508
2021-01-26 16:12:02 -08:00
Alan Somers
fd95af8dd4
Speed up "zpool import" in the presence of many zvols
By default, FreeBSD does not allow zpools to be backed by zvols (that
can be changed with the "vfs.zfs.vol.recursive" sysctl). When that
sysctl is set to 0, the kernel does not attempt to read zvols when
looking for vdevs. But the zpool command still does. This change brings
the zpool command into line with the kernel's behavior. It speeds "zpool
import" when an already imported pool has many zvols, or a zvol with
many snapshots.

https://svnweb.freebsd.org/base?view=revision&revision=357235
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=241083
https://reviews.freebsd.org/D22077

Obtained from: FreeBSD
Reported by: Martin Birgmeier <d8zNeCFG@aon.at>
Sponsored by: Axcient
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Alan Somers <asomers@gmail.com>
Closes #11502
2021-01-24 16:02:45 -08:00
Matt Macy
0e9bcd5d4f FreeBSD: fix HEAD build, conditionally remove FDSYNC defines
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11458
2021-01-23 15:39:55 -08:00
Brian Behlendorf
76e1f78d4b
Only add supported features during pool creation
When creating a pool only features supported by both user and
kernel space should be enabled.  Furthermore, improve the error
messages when attempting to create, or add, a dRAID vdev when
the dRAID feature is not supported by the kernel modules.

Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11492
2021-01-22 09:47:06 -08:00
Alan Somers
2d8f72d76c
zpool: speed up importing large pools (#11469)
The ZFS_IOC_POOL_TRYIMPORT ioctl returns an nvlist from the kernel to a
preallocated buffer in  userland.  Userland must guess how large the
buffer should be.  If it undersizes it, it must reallocate and try
again.  That can cost a lot of time for large pools.

OpenZFS commit 28b40c8a6e set the guess at "zc.zc_nvlist_conf_size * 4"
without explanation.  On my system, that is too small.  From experiment,
x 32 is a better multiplier.  But I don't know how to calculate it
theoretically.

Sponsored by:	Axcient
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alek Pinchuk <apinchuk@axcient.com>
Signed-off-by:	Alan Somers <asomers@gmail.com>
Closes #11469
2021-01-21 12:55:54 -08:00
Alan Somers
e50b5217e7 libzutil: optimize zpool_read_label with AIO
Read all labels in parallel instead of sequentially.

Originally committed as
https://cgit.freebsd.org/src/commit/?id=b49e9abcf44cafaf5cfad7029c9a6adbb28346e8

Obtained from: FreeBSD
Sponsored by: Spectra Logic, Axcient
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alek Pinchuk <apinchuk@axcient.com>
Signed-off-by: Alan Somers <asomers@gmail.com>
Closes #11467
2021-01-21 11:24:35 -08:00
Alan Somers
ec40ce8405 libzutil: don't read extraneous data in zpool_read_label
zpool_read_label doesn't need the full labels including uberblocks.  It
only needs the vdev_phys_t.  This reduces by half the amount of data
read to check for a label, speeding up "zpool import", "zpool
labelclear", etc.

Originally committed as
https://cgit.freebsd.org/src/commit/?id=63f8025d6acab1b334373ddd33f940a69b3b54cc

Obtained from: FreeBSD
Sponsored by: Spectra Logic Corp, Axcient
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alek Pinchuk <apinchuk@axcient.com>
Signed-off-by: Alan Somers <asomers@gmail.com>
Closes #11467
2021-01-21 11:18:32 -08:00
Brian Atkinson
d0cd9a5cc6
Extending FreeBSD UIO Struct
In FreeBSD the struct uio was just a typedef to uio_t. In order to
extend this struct, outside of the definition for the struct uio, the
struct uio has been embedded inside of a uio_t struct.

Also renamed all the uio_* interfaces to be zfs_uio_* to make it clear
this is a ZFS interface.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Jorgen Lundman <lundman@lundman.net>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Brian Atkinson <batkinson@lanl.gov>
Closes #11438
2021-01-20 21:27:30 -08:00
Ryan Moeller
60a2434b29
libzfs_sendrecv: Use fnv* to verify nvlist/nvpair*
Use verified variants of nvlist/nvpair functions where applicable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11460
2021-01-14 09:53:09 -08:00
Matthew Ahrens
b6722b871b nvlist leaked in zpool_find_config()
In `zpool_find_config()`, the `pools` nvlist is leaked.  Part of it (a
sub-nvlist) is returned in `*configp`, but the callers also leak that.

Additionally, in `zdb.c:main()`, the `searchdirs` is leaked.

The leaks were detected by ASAN (`configure --enable-asan`).

This commit resolves the leaks.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #11396
2020-12-28 10:05:31 -08:00
Brian Behlendorf
1c2358c12a
Linux 5.10 compat: use iov_iter in uio structure
As of the 5.10 kernel the generic splice compatibility code has been
removed.  All filesystems are now responsible for registering a
->splice_read and ->splice_write callback to support this operation.

The good news is the VFS provided generic_file_splice_read() and
iter_file_splice_write() callbacks can be used provided the ->iter_read
and ->iter_write callback support pipes.  However, this is currently
not the case and only iovecs and bvecs (not pipes) are ever attached
to the uio structure.

This commit changes that by allowing full iov_iter structures to be
attached to uios.  Ever since the 4.9 kernel the iov_iter structure
has supported iovecs, kvecs, bvevs, and pipes so it's desirable to
pass the entire thing when possible.  In conjunction with this the
uio helper functions (i.e uiomove(), uiocopy(), etc) have been
updated to understand the new UIO_ITER type.

Note that using the kernel provided uio_iter interfaces allowed the
existing Linux specific uio handling code to be simplified.  When
there's no longer a need to support kernel's older than 4.9, then
it will be possible to remove the iovec and bvec members from the
uio structure and always use a uio_iter.  Until then we need to
maintain all of the existing types for older kernels.

Some additional refactoring and cleanup was included in this change:

- Added checks to configure to detect available iov_iter interfaces.
  Some are available all the way back to the 3.10 kernel and are used
  when available.  In particular, uio_prefaultpages() now always uses
  iov_iter_fault_in_readable() which is available for all supported
  kernels.

- The unused UIO_USERISPACE type has been removed.  It is no longer
  needed now that the uio_seg enum is platform specific.

- Moved zfs_uio.c from the zcommon.ko module to the Linux specific
  platform code for the zfs.ko module.  This gets it out of libzfs
  where it was never needed and keeps this Linux specific code out
  of the common sources.

- Removed unnecessary O_APPEND handling from zfs_iter_write(), this
  is redundant and O_APPEND is already handled in zfs_write();

Reviewed-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11351
2020-12-18 08:48:26 -08:00
Ryan Libby
c7500ded3e
FreeBSD libzfs: gcc requires __thread after static
Building libzfs with gcc on FreeBSD failed because gcc is picky about
the order of keywords in declarations with __thread, whereas clang is
more relaxed.

https://gcc.gnu.org/onlinedocs/gcc/Thread-Local.html

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Ryan Libby <rlibby@FreeBSD.org>
Closes #11331
2020-12-14 09:28:24 -08:00
Attila Fülöp
0cb40fa389
zpool: Dryrun fails to list some devices
`zpool create -n` fails to list cache and spare vdevs.
`zpool add -n` fails to list spare devices.
`zpool split -n` fails to list `special` and `dedup` labels.
`zpool add -n` and `zpool split -n` shouldn't list hole devices.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #11122
Closes #11167
2020-12-04 14:04:39 -08:00
Antonio Russo
d45267183f
libzfsbootenv: do not depend on libnvpair
We do not build libnvpair.pc.  Moreover, it is automatically pulled in
by libzfs.pc, so no additional specific dependency is required.

Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11227
2020-11-22 15:16:42 -08:00
Brian Behlendorf
f1ece319fd
Include the ABI with dist tarball
The ABI should be included when generating the `make dist` tarball
since it's required by the `make checkabi` target.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11225
2020-11-21 10:44:52 -08:00
Brian Behlendorf
82611cdfe5 Add ABI snapshot
Add a snapshot of the current ABI using libabigail-1.7-2.  The
included ABI passes `make checkabi` for CentOS 7, Fedora 33,
Debian 10, and Ubuntu 20.04.  This covers a fairly wide range
of glibc, gcc, and libabigail versions plus other changes which
are platform specific.

Reviewed-by: Antonio Russo <aerusso@aerusso.net>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11144
2020-11-17 09:21:39 -08:00
Antonio Russo
14c34c3d49 Library ABI tracking with abigail
Provide two make targets: checkabi and storeabi.

storeabi uses libabigail to generate a reference copy of the ABI for the
public libraries.

checkabi compares such a reference to the compiled version, failing if
they are not compatible.  No ABI is generated for libzpool.so, it is
only used by ztest and zdb and not external consumers.

Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11144
2020-11-17 09:18:52 -08:00
наб
e6c59cd171 zpool: correctly align columns with -p
zpool_expand_proplist() now ignores pl_fixed if its new literal
argument is true.  The rest is a consequence of needing to pass
that down.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiao?=~Dska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11202
2020-11-16 09:26:20 -08:00
Brian Behlendorf
b2255edcc0
Distributed Spare (dRAID) Feature
This patch adds a new top-level vdev type called dRAID, which stands
for Distributed parity RAID.  This pool configuration allows all dRAID
vdevs to participate when rebuilding to a distributed hot spare device.
This can substantially reduce the total time required to restore full
parity to pool with a failed device.

A dRAID pool can be created using the new top-level `draid` type.
Like `raidz`, the desired redundancy is specified after the type:
`draid[1,2,3]`.  No additional information is required to create the
pool and reasonable default values will be chosen based on the number
of child vdevs in the dRAID vdev.

    zpool create <pool> draid[1,2,3] <vdevs...>

Unlike raidz, additional optional dRAID configuration values can be
provided as part of the draid type as colon separated values. This
allows administrators to fully specify a layout for either performance
or capacity reasons.  The supported options include:

    zpool create <pool> \
        draid[<parity>][:<data>d][:<children>c][:<spares>s] \
        <vdevs...>

    - draid[parity]       - Parity level (default 1)
    - draid[:<data>d]     - Data devices per group (default 8)
    - draid[:<children>c] - Expected number of child vdevs
    - draid[:<spares>s]   - Distributed hot spares (default 0)

Abbreviated example `zpool status` output for a 68 disk dRAID pool
with two distributed spares using special allocation classes.

```
  pool: tank
 state: ONLINE
config:

    NAME                  STATE     READ WRITE CKSUM
    slag7                 ONLINE       0     0     0
      draid2:8d:68c:2s-0  ONLINE       0     0     0
        L0                ONLINE       0     0     0
        L1                ONLINE       0     0     0
        ...
        U25               ONLINE       0     0     0
        U26               ONLINE       0     0     0
        spare-53          ONLINE       0     0     0
          U27             ONLINE       0     0     0
          draid2-0-0      ONLINE       0     0     0
        U28               ONLINE       0     0     0
        U29               ONLINE       0     0     0
        ...
        U42               ONLINE       0     0     0
        U43               ONLINE       0     0     0
    special
      mirror-1            ONLINE       0     0     0
        L5                ONLINE       0     0     0
        U5                ONLINE       0     0     0
      mirror-2            ONLINE       0     0     0
        L6                ONLINE       0     0     0
        U6                ONLINE       0     0     0
    spares
      draid2-0-0          INUSE     currently in use
      draid2-0-1          AVAIL
```

When adding test coverage for the new dRAID vdev type the following
options were added to the ztest command.  These options are leverages
by zloop.sh to test a wide range of dRAID configurations.

    -K draid|raidz|random - kind of RAID to test
    -D <value>            - dRAID data drives per group
    -S <value>            - dRAID distributed hot spares
    -R <value>            - RAID parity (raidz or dRAID)

The zpool_create, zpool_import, redundancy, replacement and fault
test groups have all been updated provide test coverage for the
dRAID feature.

Co-authored-by: Isaac Huang <he.huang@intel.com>
Co-authored-by: Mark Maybee <mmaybee@cray.com>
Co-authored-by: Don Brady <don.brady@delphix.com>
Co-authored-by: Matthew Ahrens <mahrens@delphix.com>
Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Mark Maybee <mmaybee@cray.com>
Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10102
2020-11-13 13:51:51 -08:00
Adrian Chadd
79a357c2a1 Fix pointer-is-uint64_t-sized assumption in the ioctl path
This shows up when compiling freebsd-head on amd64 using gcc-6.4.
The lib32 compat build ends up tripping over this assumption.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: adrian chadd <adrian@freebsd.org>
Closes #11068
Closes #11069
2020-11-10 15:53:13 -08:00
Antonio Russo
71ae6a9d23 Synchronize library ABI levels
Bump library SOVERSION under Linux to match FreeBSD's.

Additionally, this bump properly accounts for the ABI changes relative
to ZoL 0.8.5 for the Linux build.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Issue #11144
2020-11-03 09:24:43 -08:00
Matthew Macy
5fa356ea44
Remove UIO_ZEROCOPY functions structures
The original xuio zero copy functionality has always been unused 
on Linux and FreeBSD.  Remove this disabled code to avoid any
confusion and improve readability.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11124
2020-10-30 10:00:33 -07:00
Ryan Moeller
76d04993a6
Update references to nonexistent man pages in code
Refer to the correct section or alternative for FreeBSD and Linux.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11132
2020-10-30 08:55:59 -07:00
Matthew Macy
e53d678d4a
Share zfs_fsync, zfs_read, zfs_write, et al between Linux and FreeBSD
The zfs_fsync, zfs_read, and zfs_write function are almost identical
between Linux and FreeBSD.  With a little refactoring they can be
moved to the common code which is what is done by this commit.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #11078
2020-10-21 14:08:06 -07:00
Ryan Moeller
485b50bb9e
Cross-platform acltype
The acltype property is currently hidden on FreeBSD and does not
reflect the NFSv4 style ZFS ACLs used on the platform.  This makes it
difficult to observe that a pool imported from FreeBSD on Linux has a
different type of ACL that is being ignored, and vice versa.

Add an nfsv4 acltype and expose the property on FreeBSD.

Make the default acltype nfsv4 on FreeBSD.

Setting acltype to an unhanded style is treated the same as setting
it to off.  The ACLs will not be removed, but they will be ignored.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #10520
2020-10-13 21:25:48 -07:00
Warner Losh
b302185a92
FreeBSD: make adjustments for the standalone environment
In FreeBSD, there are three compile environments that are supported:
user land, the kernel and the bootloader / standalone. Adjust the
headers to compile in the standalone environment. Limit kernel-only
items from view when _STANDALONE is defined.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Warner Losh <imp@FreeBSD.org>
Closes #10998
2020-10-13 21:05:49 -07:00
Ryan Moeller
e191b60ddc
FreeBSD: Improve libzfs_error_init messages
It is a common mistake to have failed to autoload the module due to
permission issues when running a ZFS command as a user.  "Operation
not permitted" is an unhelpfully vague error message.

Use a thread-local message buffer to format a nicer error message.
We can infer that loading the kernel module failed if the module is
not loaded.  This can be extended with heuristics for other errors
in the future.

While looking at this stuff, remove an unused thread-local message
buffer found in libspl and remove some inaccurate verbiage from the
comment on libzfs_load_module.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11033
2020-10-13 09:38:40 -07:00
Brian Behlendorf
d0249a4bd0
Replace ZFS on Linux references with OpenZFS
This change updates the documentation to refer to the project
as OpenZFS instead ZFS on Linux.  Web links have been updated
to refer to https://github.com/openzfs/zfs.  The extraneous
zfsonlinux.org web links in the ZED and SPL sources have been
dropped.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11007
2020-10-08 20:10:13 -07:00
Christian Schwarz
36482bf607
libzfs_sendrecv: zfs_send: remove unused pipefd and tid variables
fixup of 196bee4

On gcc (GCC) 9.2.1 20190827 (Red Hat 9.2.1-1), the code removed
caused `-Wmaybe-uninitialized` errors.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11021
2020-10-08 09:43:51 -07:00
Alan Somers
a132c2b413
Fix EIO after resuming receive of new dataset over an existing one
When resuming an interrupted ZFS send stream that creates a new dataset
with the same name as an existing dataset, if the existing dataset is
accessed after the failed receive, then after the subsequent successful
receive it will return EIO. This happens because nothing mounts the new
dataset, leaving the old, no longer valid dataset still mounted.

This commit fixes zfs receive to always unmount and remount the
destination, regardless of whether the stream is a new stream or a
resumed stream.

Sponsored by: Axcient
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Alan Somers <asomers@gmail.com>
External-issue: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=249579
Closes #10995
Closes #10999
2020-10-02 17:47:09 -07:00
George Wilson
bd76bcb36d
zpool command complains about /etc/exports.d
If the /etc/exports.d directory does not exist, then we should only
create it when we're performing an action which already requires root
privileges.

This commit moves the directory creation to the enable/disable code
path which ensures that we have the appropriate privileges.

Reviewed-by: Richard Elling <Richard.Elling@RichardElling.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Wilson <gwilson@delphix.com>
Closes #10785
Closes #10934
2020-09-25 13:09:40 -07:00
Matthew Macy
7b8363d7f0
FreeBSD: Add support for procfs_list
The procfs_list interface is required by several kstats. Implement
this functionality for FreeBSD to provide access to these kstats.
                           
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #10890
2020-09-23 16:43:51 -07:00
Allan Jude
908d43d0a9
libzfs: Don't leak buf if nvlist is too large
Resolves FreeBSD Coverity defect:
CID 1432398:  Resource leaks  (RESOURCE_LEAK)

libzfs: don't leak hdl if there is an error reading env var

Resolves FreeBSD Coverity defect:
CID 1432395:  Resource leaks  (RESOURCE_LEAK)

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Allan Jude <allanjude@freebsd.org>
Closes #10882
2020-09-18 10:23:29 -07:00