When we encounter a USDT probe in a weak symbol, we emit an alias for
the probe function symbol. Such aliases are named differently from the
aliases we emit for probes in local functions, so make sure to take that
difference into account when resizing the output object file's string
table. Otherwise, we underrun the string table buffer.
PR: 223680
Previously some unimplemented libdtrace routines printed the function,
file and line number, followed by "DOODAD." That is not particularly
informative, so replace it with a message reporting the actual issue.
Sponsored by: The FreeBSD Foundation
illumos/illumos-gate@0a0551200e0a0551200ehttps://www.illumos.org/issues/640
du(1), df(1m), ls(1), and swap(1m) all include a copy (it appears literally
copied) of the 'number_to_scaled_string' function in their source. This should
be moved to a shared library and all 4 commands should use this instead.
FreeBSD note: of all libcmdutils functionality ZFS (and other illumos
contrib code) currently uses only nicenum() function (which is similar
to humanize_number but has some formatting differences). For this
reason I decided to not port the whole library. As a result, nicenum.c
from libcmdutils is compiled into libzfs and libzpool. This is a bit
ugly, but works. If one day we are forced to create libillumos, then
the file should be moved to that library.
Reviewed by: Sebastian Wiedenroth <wiedi@frubar.net>
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Yuri Pankov <yuripv@gmx.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: Jason King <jason.brian.king@gmail.com>
MFC after: 2 weeks
Previously, this didn't work because L2ARC devices' labels don't contain
pool GUIDs. Modify zfsd so that the pool GUID won't be required:
lib/libdevdctl/guid.h
Change INVALID_GUID from a uint64_t constant to a function that
returns an invalid Guid object. Remove the void constructor.
Nothing uses it, and it violates RAII.
cddl/usr.sbin/zfsd/case_file.h
cddl/usr.sbin/zfsd/case_file.cc
Allow CaseFile::Find to match a CaseFile based on Vdev GUID alone.
In CaseFile::ReEvaluate, attempt to online devices even if the newly
arrived device has no pool GUID.
cddl/usr.sbin/zfsd/vdev_iterator.cc
Iterate through a pool's cache devices as well as its regular
devices.
Reported by: avg
Reviewed by: avg
MFC after: 3 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D12791
Previously, zpool_read_all_labels was trying to do 256KB reads, which are
greater than the default MAXPHYS and therefore must go through the slow,
unsafe AIO path. Shrink these reads to 112KB so they can use the safe, fast
AIO path instead.
MFC after: 1 week
X-MFC-With: 324568
Sponsored by: Spectra Logic Corp
- Fix a number of typos.
- Replace some illumos-specific references.
- Note that a type definition of kind CTF_K_FUNCTION may be followed by
a null type identifier in order to provide 4-byte alignment for the
next type definition.
MFC after: 2 weeks
illumos/illumos-gate@72d3dbb9ab72d3dbb9abhttps://www.illumos.org/issues/8300
Prior to integrating the mdocml update to 1.14.1, fix issues found by
new version, especially the "new sentence, new line" style rule.
FreeBSD note: this revision merges only the changes to the CTF manual
page. The changes to the ZFS pages cannot be applied directly.
Reviewed by: Robert Mustacchi <rm@joyent.com>
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Gordon Ross <gwr@nexenta.com>
Author: Yuri Pankov <yuri.pankov@nexenta.com>
Discussed with: avg
MFC after: 2 weeks
The upstream has converted their manual page to the same format as we
have, so we can use the upstream version with minimal modifications.
The current modifications are:
- different zpool.cache path
- different manual sections for zdb, zfs, zpool commands
igor reports a few minor issues, it would be nice to fix them both in
FreeBSD and in the upstream.
MFC after: 3 weeks
illumos/illumos-gate@4923c69fdd4923c69fdd
FreeBSD note: the manual page is to be updated separately.
https://www.illumos.org/issues/8067
Add an option to zdb to print a literal embedded block pointer supplied on the
command line:
zdb -E [-A] word0:word1:...:word15
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Alex Reece <alex@delphix.com>
Reviewed by: Yuri Pankov <yuri.pankov@gmail.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Matthew Ahrens <mahrens@delphix.com>
MFC after: 3 weeks
illumos/illumos-gate@ed4e7a6a5ced4e7a6a5chttps://www.illumos.org/issues/7340
When -o origin=<snapshot> is specified as part of a ZFS receive, that origin
should override the automatic detection in libzfs.
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Paul Dagnelie <pcd@delphix.com>
MFC after: 3 weeks
illumos/illumos-gate@d5f26ad812d5f26ad812https://www.illumos.org/issues/5142
the current libzfs only allows simple disk and mirror setup for boot pool, as
loader does support booting from raidz, this feature will remove raidz
restriction from boot pool setup.
FreeBSD note: we have long supported this feature, this commit only
removes a small difference in libzfs.
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Andrew Stormont <andyjstormont@gmail.com>
Reviewed by: Albert Lee <trisk@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Toomas Soome <tsoome@me.com>
MFC after: 3 weeks
illumos/illumos-gate@aab04418a7aab04418a7https://www.illumos.org/issues/6268
The zfs diff command presents a description of the changes that have occurred
to files within a filesystem between two snapshots. If a file is renamed, the
tool is capable of reporting this, e.g.:
cd /some/zfs/dataset/subdir
mv file0 file1
Will result in a diff record like:
R /some/zfs/dataset/subdir/file0 -> /some/zfs/dataset/subdir/file1
Unfortunately, it seems that rename detection only uses the base filename to
determine if a file has been renamed or simply modified. This leads to
misreporting only the original filename, omitting the more relevant destination
filename entirely. For example:
cd /some/zfs/dataset/subdir
mv file0 ../otherdir/file0
Will result in a diff entry:
M /some/zfs/dataset/subdir/file0
But it should really emit:
R /some/zfs/dataset/subdir/file0 -> /some/zfs/dataset/otherdir/file0
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Justin Gibbs <gibbs@scsiguy.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Joshua M. Clulow <josh@sysmgr.org>
MFC after: 3 weeks
illumos/illumos-gate@ad2760acbdad2760acbdhttps://www.illumos.org/issues/7571
ZFS displays the default value for non-present readonly numeric (and index)
properties. However, these properties default values are not meaningful.
Instead, we should display a "-", indicating that they are not present. For
example, on a version-12 pool, the usedby* properties are not available, but
they show up as the incorrect value "0":
1. zfs get all test12
...
test12 usedbysnapshots 0 -
test12 usedbydataset 0 -
test12 usedbychildren 0 -
test12 usedbyrefreservation 0 -
We will be introducing more sometimes-present numeric readonly properties, so
it would be nice to fix this.
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Matthew Ahrens <mahrens@delphix.com>
MFC after: 3 weeks
illumos/illumos-gate@dfd5965f7edfd5965f7e
FreeBSD note: the manual page is to be updated separately.
https://www.illumos.org/issues/6392
When given a pool name via -e, zdb would attempt an import. If it
failed, then it would attempt a verbatim import. This behavior is
not always desirable so a -V switch is added to zdb to control the
behavior. When specified, a verbatim import is done. Otherwise,
the behavior is as it was previously, except no verbatim import
is done on failure.
a5778ea242
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Yuri Pankov <yuri.pankov@gmail.com>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Richard Yao <ryao@gentoo.org>
MFC after: 3 weeks
illumos/illumos-gate@ed61ec1da9ed61ec1da9
FreeBSD note: this commit does not update the manual page.
The original change includes conversion of the manual page from *roff format
to mandoc format. So, it is hard to extract the content change from
that. I am going to replace our zdb manual page, which is an earlier
independent conversion, with a slighly modified version of the upstream page.
https://www.illumos.org/issues/6410
This is primarily intended to ease debugging & testing ZFS when one is only
interested in things like the on-disk location of a specific object's blocks,
but doesn't know their object id. This allows doing things like the following
(FreeBSD-based example):
# zpool create -f foo da0
# dd if=/dev/zero of=/foo/1 bs=1M count=4 >/dev/null 2>&1
# zpool export foo
# zdb -vvvvv -o "ZFS plain file" foo /1
Object lvl iblk dblk dsize lsize %full type
8 2 16K 128K 3.99M 4M 100.00 ZFS plain file (K=inherit) (Z=inherit)
168 bonus System attributes
dnode flags: USED_BYTES USERUSED_ACCOUNTED
dnode maxblkid: 31
path /1
uid 0
gid 0
atime Thu Apr 23 22:45:32 2015
mtime Thu Apr 23 22:45:32 2015
ctime Thu Apr 23 22:45:32 2015
crtime Thu Apr 23 22:45:32 2015
gen 7
mode 100644
size 4194304
parent 4
links 1
pflags 40800000004
Indirect blocks:
0 L1 DVA[0]=<0:c19200:600> DVA[1]=<0:10800019200:600> [L1 ZFS
plain file] fletcher4 lz4 LE contiguous unique double size=4000L/200P birth=7L/
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Will Andrews <will@freebsd.org>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Yuri Pankov <yuri.pankov@nexenta.com>
MFC after: 3 weeks
illumos/illumos-gate@de05b58863de05b58863https://www.illumos.org/issues/3871
GCC 4.5.3 on Gentoo Linux did not like a few of the changes made in the issue
3604 patch. It printed an error and a couple of warnings:
../../cmd/zdb/zdb.c: In function 'dump_bpobj':
../../cmd/zdb/zdb.c:1257:3: error: 'for' loop initial declarations are only
allowed in C99 mode
../../cmd/zdb/zdb.c:1257:3: note: use option -std=c99 or -std=gnu99 to compile
your code
../../cmd/zdb/zdb.c: In function 'dump_deadlist':
../../cmd/zdb/zdb.c:1323:8: warning: too many arguments for format
../../cmd/zdb/zdb.c:1323:8: warning: too many arguments for format
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim@delphix.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Richard Yao <ryao@gentoo.org>
MFC after: 3 weeks
illumos/illumos-gate@64723e361164723e3611https://www.illumos.org/issues/6866
Need this for #6865.
To be generally more scripting-friendly, overload this issue with adding '-q'
option which should skip printing any label information.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Yuri Pankov <yuri.pankov@nexenta.com>
MFC after: 3 weeks
7280 Allow changing global libzpool variables in zdb and ztest through command line
illumos/illumos-gate@0e60744c980e60744c98https://www.illumos.org/issues/7280
zdb is very handy for diagnosing problems with a pool in a safe and
quick way. When a pool is in a bad shape, we often want to disable some
fail-safes, or adjust some tunables in order to open them. In the
kernel, this is done by changing public variables in mdb. The goal of
this feature is to add the same capability to zdb and ztest, so that
they can change libzpool tuneables from the command line.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Pavel Zakharov <pavel.zakharov@delphix.com>
MFC after: 3 weeks
illumos/illumos-gate@2840dce1a02840dce1a0https://www.illumos.org/issues/8600
ZFS channel programs should be able to create snapshots.
In addition to the base snapshot functionality, this will likely entail adding
extra logic to handle edge cases which were formerly not possible, such as
creating then destroying a snapshot in the same transaction sync.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Chris Williamson <chris.williamson@delphix.com>
MFC after: 5 weeks
X-MFC after: r324163
illumos/illumos-gate@000cce6b6f000cce6b6fhttps://www.illumos.org/issues/8592
ZFS channel programs should be able to perform a rollback. This logic will
probably look pretty similar to zfs.sync.destroy().
Reviewed by: Chris Williamson <chris.williamson@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Brad Lewis <brad.lewis@delphix.com>
MFC after: 5 weeks
X-MFC after: r324163
illumos/illumos-gate@5f39f884e25f39f884e2https://www.illumos.org/issues/8605
zfs.exists() in channel programs doesn't return any result, and should have a
man page entry.
Reviewed by: Paul Dagnelie <pcd@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Chris Williamson <chris.williamson@delphix.com>
MFC after: 5 weeks
X-MFC after: r324163
7431 ZFS Channel Programs
illumos/illumos-gate@dfc115332cdfc115332chttps://www.illumos.org/issues/7431
ZFS channel programs (ZCP) adds support for performing compound ZFS
administrative actions via Lua scripts in a sandboxed environment (with time
and memory limits).
This initial commit includes both base support for running ZCP scripts, and a
small initial library of API calls which support getting properties and
listing, destroying, and promoting datasets.
Testing: in addition to the included unit tests, channel programs have been in
use at Delphix for several months for batch destroying filesystems. The
dsl_destroy_snaps_nvl() call has also been replaced with
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: John Kennedy <john.kennedy@delphix.com>
Reviewed by: Dan Kimmel <dan.kimmel@delphix.com>
Approved by: Garrett D'Amore <garrett@damore.org>
Author: Chris Williamson <chris.williamson@delphix.com>
8552 ZFS LUA code uses floating point math
illumos/illumos-gate@916c8d8811916c8d8811https://www.illumos.org/issues/8552
In the LUA interpreter used by "zfs program", the lua format() function
accidentally includes support for '%f' and friends, which can cause compilation
problems when building on platforms that don't support floating-point math in
the kernel (e.g. sparc). Support for '%f' friends (%f %e %E %g %G) should be
removed, since there's no way to supply a floating-point value anyway (all
numbers in ZFS LUA are int64_t's).
Reviewed by: Yuri Pankov <yuripv@gmx.com>
Reviewed by: Igor Kozhukhov <igor@dilos.org>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: Matthew Ahrens <mahrens@delphix.com>
8590 memory leak in dsl_destroy_snapshots_nvl()
illumos/illumos-gate@e6ab4525d1e6ab4525d1https://www.illumos.org/issues/8590
In dsl_destroy_snapshots_nvl(), "snaps_normalized" is not freed after it is
added to "arg".
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed by: Steve Gonczi <steve.gonczi@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: Matthew Ahrens <mahrens@delphix.com>
FreeBSD notes:
- zfs-program.8 manual page is taken almost as is from the vendor repository,
no FreeBSD-ification done
- fixed multiple instances of NULL being used where an integer is expected
- replaced ETIME and ECHRNG with ETIMEDOUT and EDOM respectively
This commit adds a modified version of Lua 5.2.4 under
sys/cddl/contrib/opensolaris/uts/common/fs/zfs/lua, mirroring the
upstream. See README.zfs in that directory for the description of Lua
customizations.
See zfs-program.8 on how to use the new feature.
MFC after: 5 weeks
Relnotes: yes
Differential Revision: https://reviews.freebsd.org/D12528
FreeBSD notes:
- this MFV reverts FreeBSD commit r314549 to make the merge easier
- at present our emulation of cv_timedwait_hires is rather poor,
so I elected to use cv_timedwait_sbt directly
Please see the differential revision for details.
Unfortunately, I did not get any positive reviews, so there could be
bugs in the FreeBSD-specific piece of the merge.
Hence, the long MFC timeout.
illumos/illumos-gate@1271e4b10d1271e4b10dhttps://www.illumos.org/issues/8585
The current implementation of zil_commit() can introduce significant
latency, beyond what is inherent due to the latency of the underlying
storage. The additional latency comes from two main problems:
1. When there's outstanding ZIL blocks being written (i.e. there's
already a "writer thread" in progress), then any new calls to
zil_commit() will block waiting for the currently oustanding ZIL
blocks to complete. The blocks written for each "writer thread" is
coined a "batch", and there can only ever be a single "batch" being
written at a time. When a batch is being written, any new ZIL
transactions will have to wait for the next batch to be written,
which won't occur until the current batch finishes.
As a result, the underlying storage may not be used as efficiently
as possible. While "new" threads enter zil_commit() and are blocked
waiting for the next batch, it's possible that the underlying
storage isn't fully utilized by the current batch of ZIL blocks. In
that case, it'd be better to allow these new threads to generate
(and issue) a new ZIL block, such that it could be serviced by the
underlying storage concurrently with the other ZIL blocks that are
being serviced.
2. Any call to zil_commit() must wait for all ZIL blocks in its "batch"
to complete, prior to zil_commit() returning. The size of any given
batch is proportional to the number of ZIL transaction in the queue
at the time that the batch starts processing the queue; which
doesn't occur until the previous batch completes. Thus, if there's a
lot of transactions in the queue, the batch could be composed of
many ZIL blocks, and each call to zil_commit() will have to wait for
all of these writes to complete (even if the thread calling
zil_commit() only cared about one of the transactions in the batch).
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: Prakash Surya <prakash.surya@delphix.com>
MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D12355
illumos/illumos-gate@c861bfbd77c861bfbd77https://www.illumos.org/issues/8567
If fstat64 fails, pread64 fails, or the label is unintelligible,
zpool_read_label will return 0. But if malloc fails, it will return -1. For
consistency, it should always return -1 on failure or 0 on success.
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Alan Somers <asomers@gmail.com>
MFC after: 2 weeks
- The exit probe was not appropriately filtered to only the known pid so it
was firing on any random process that would exit rather the only the one
we cared about.
- The dtest script executes the tst.raise*.exe in the background from
POSIX sh without jobs control. POSIX mandates that SIGINT be set to
SIG_IGN in this case. The test executable never actually tested that
SIGINT could be caught despite trying to block and delay the signal.
So the SIGINT sent from raise() is never actually received since it
is ignored. This could be fixed by calling 'trap - INT' from dtest
before running the executable but I've opted to just use SIGUSR1
instead in these specific tests rather than adding more logic to
test that SIGINT is not ignored at startup.
These 2 issues meant that the tests would randomly work but only if a process
coincidentally exited during the test.
Reviewed by: markj
MFC after: 2 weeks
Sponsored by: Dell EMC Isilon
illumos/illumos-gate@fae6347731fae6347731https://www.illumos.org/issues/5815
When panic() is called from within ztest, the mdb ::status command isn't as
useful as it could be since the global panicstr variable isn't updated. We
should modify the function to make sure panicstr is set, so ::status can
present the error message just like it does on a failed assertion.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Sebastien Roy <sebastien.roy@delphix.com>
Reviewed by: Gordon Ross <gordon.ross@nexenta.com>
Reviewed by: Rich Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Prakash Surya <prakash.surya@delphix.com>
MFC after: 4 weeks
illumos/illumos-gate@4f4378cc544f4378cc54https://www.illumos.org/issues/8331
zfs_unshare returns EZFS_UNSHARENFSFAILED on error for all share types.
Reviewed by: Marcel Telka <marcel@telka.sk>
Reviewed by: Toomas Soome <tsoome@me.com>
Approved by: Dan McDonald <danmcd@omniti.com>
Author: Andrew Stormont <astormont@racktopsystems.com>
MFC after: 4 weeks
illumos/illumos-gate@d1672efb6fd1672efb6fhttps://www.illumos.org/issues/6280
The unshare_one() in libzfs could fail with EZFS_SHARENFSFAILED at line 834
here:
831 /* make sure libshare initialized */
832 if ((err = zfs_init_libshare(hdl, SA_INIT_SHARE_API)) != SA_OK) {
833 free(mntpt); /* don't need the copy anymore */
834 return (zfs_error_fmt(hdl, EZFS_SHARENFSFAILED,
835 dgettext(TEXT_DOMAIN, "cannot unshare '%s': %s"),
836 name, _sa_errorstr(err)));
837 }
The correct error should be EZFS_UNSHARENFSFAILED instead.
Reviewed by: Toomas Soome <tsoome@me.com>
Reviewed by: Dan McDonald <danmcd@omniti.com>
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Approved by: Gordon Ross <gwr@nexenta.com>
Author: Marcel Telka <marcel.telka@nexenta.com>
MFC after: 4 weeks
We have D definitions for the named values in socket.h after r323253. Remove
them in test script to prevent compiling failure.
Reviewed by: markj, gnn
Differential Revision: https://reviews.freebsd.org/D12334
illumos/illumos-gate@1702cce7511702cce751
FreeBSD note: rather than merging the zpool.8 update I copied the zpool
scrub section from the illumos zpool.1m to FreeBSD zpool.8 almost
verbatim. Now that the illumos page uses the mdoc format, it was an
easier option. Perhaps the change is not in perfect compliance with the
FreeBSD style, but I think that it is acceptible.
https://www.illumos.org/issues/8414
This issue tracks the port of scrub pause from ZoL: https://github.com/zfsonlinux/zfs/pull/6167
Currently, there is no way to pause a scrub. Pausing may be useful when
the pool is busy with other I/O to preserve bandwidth.
Description
This patch adds the ability to pause and resume scrubbing. This is achieved
by maintaining a persistent on-disk scrub state. While the state is 'paused'
we do not scrub any more blocks. We do however perform regular scan
housekeeping such as freeing async destroyed and deadlist blocks while paused.
Motivation and Context
Scrub pausing can be an I/O intensive operation and people have been asking
for the ability to pause a scrub for a while. This allows one to preserve scrub
progress while freeing up bandwidth for other I/O.
Reviewed by: George Melikov <mail@gmelikov.ru>
Reviewed by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Brad Lewis <brad.lewis@delphix.com>
Reviewed by: Serapheim Dimitropoulos <serapheim@delphix.com>
Reviewed by: Matt Ahrens <mahrens@delphix.com>
Approved by: Dan McDonald <danmcd@joyent.com>
Author: Alek Pinchuk <apinchuk@datto.com>
MFC after: 2 weeks
The existing code in zmount incorrectly parses the comma-delimited option
string. The result is that nmount only honors the last option. AFAICT the
parsing has been broken ever since ZFS's initial import in change 168404.
PR: 222078
Reviewed by: avg
MFC after: 3 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D12232
When inserting a partitioned disk, devfs and geom will announce the whole
disk before they announce the partition. If the partition containing ZFS
extends to one of the disk's extents, then zfsd will see a ZFS label on the
whole disk and attempt to online it. ZFS is smart enough to activate the
partition instead of the whole disk, but only if GEOM has already created
the partition's provider.
cddl/contrib/opensolaris/lib/libzfs/common/libzfs.h
cddl/contrib/opensolaris/lib/libzfs/common/libzfs_import.c
Add a zpool_read_all_labels method. It's similar to
zpool_read_label, but it will return the number of labels found.
cddl/usr.sbin/zfsd/zfsd_event.cc
When processing a DevFS CREATE event, only online a VDEV if we can
read all four ZFS labels.
Reviewed by: mav
MFC after: 3 weeks
Sponsored by: Spectra Logic Corp
Differential Revision: https://reviews.freebsd.org/D11920
The aggregation created by llquantize() partitions values into buckets; the
lower bound of the bucket containing the largest values is b^{m+1}, where
b and m are the second and fourth parameters to the action, respectively.
Bucket bounds are stored in a 64-bit integer, and so the llquantize()
validation checks need to verify that b^{m+1} fits in 64 bits. However, it
was only verifying that b^{m-1} fits in 64 bits, so certain parameter
combinations could trigger assertion failures in libdtrace.
PR: 219451
MFC after: 1 week
illumos/illumos-gate@77b171372e77b171372ehttps://www.illumos.org/issues/7600
At present, the kernel side code seems to blindly rollback to whatever happens
to be the latest snapshot at the time when the rollback task is processed.
The expected target's name should be passed to the kernel driver and the sync
task should validate that the target exists and that it is the latest snapshot
indeed.
Reviewed by: Matthew Ahrens <mahrens@delphix.com>
Reviewed by: Pavel Zakharov <pavel.zakharov@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Andriy Gapon <avg@FreeBSD.org>
MFC after: 3 weeks
illumos/illumos-gate@b7edcb9408b7edcb9408https://www.illumos.org/issues/8378
The problem is that zfs_get_data() supplies a stale zgd_bp to dmu_sync(), which
we then nopwrite against.
zfs_get_data() doesn't hold any DMU-related locks, so after it copies db_blkptr
to zgd_bp, dbuf_write_ready()
could change db_blkptr, and dbuf_write_done() could remove the dirty record.
dmu_sync() then sees the stale
BP and that the dbuf it not dirty, so it is eligible for nop-writing.
The fix is for dmu_sync() to copy db_blkptr to zgd_bp after acquiring the
db_mtx. We could still see a stale
db_blkptr, but if it is stale then the dirty record will still exist and thus
we won't attempt to nopwrite.
Reviewed by: Prakash Surya <prakash.surya@delphix.com>
Reviewed by: George Wilson <george.wilson@delphix.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Matthew Ahrens <mahrens@delphix.com>
MFC after: 2 weeks
illumos/illumos-gate@e09ba01dcde09ba01dcdhttps://www.illumos.org/issues/8418
The following line in zfs_validate_name() is just a no-op and it
should be removed:
108 (void) zfs_prop_get_table();
Reviewed by: Vitaliy Gusev <gusev.vitaliy@icloud.com>
Approved by: Matthew Ahrens <mahrens@delphix.com>
Author: Marcel Telka <marcel@telka.sk>
MFC after: 2 weeks
o Replace __riscv64 with (__riscv && __riscv_xlen == 64)
This is required to support new GCC 7.1 compiler.
This is compatible with current GCC 6.1 compiler.
RISC-V is extensible ISA and the idea here is to have built-in define
per each extension, so together with __riscv we will have some subset
of these as well (depending on -march string passed to compiler):
__riscv_compressed
__riscv_atomic
__riscv_mul
__riscv_div
__riscv_muldiv
__riscv_fdiv
__riscv_fsqrt
__riscv_float_abi_soft
__riscv_float_abi_single
__riscv_float_abi_double
__riscv_cmodel_medlow
__riscv_cmodel_medany
__riscv_cmodel_pic
__riscv_xlen
Reviewed by: ngie
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D11901
- Store the symbol table contents in an anonymous swap-backed object. Have
mmap(/dev/ksyms) map that object, and stop mapping the symbol table into
the calling process in ksyms_open(). Previously we would cache a pointer
to the pmap of the opening process, and mmap(/dev/ksyms) would create a
mapping using the physical address found by a pmap lookup at the initial
mapping address. However, this assumes that the cached pmap is valid,
which may not be the case. [1]
- Remove the ksyms ioctl interface. It appears to have been added to work
around a limitation in libelf that no longer exists; see r321842.
Moreover, the interface is difficult to support and isn't present in
illumos. Since ksyms was added specifically to support lockstat(1), it
is expected that this removal won't have any real impact.
- Simplify ksyms_read() to avoid unnecessary copying.
- Don't call the device handle destructor if we fail to capture a snapshot
of the kernel's symbol table. devfs will do that for us.
Reported by: Ilja van Sprundel <ivansprundel@ioactive.com> [1]
Reviewed by: kib (previous revision)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D11789
