Commit Graph

6800 Commits

Author SHA1 Message Date
Brian Behlendorf e7a06356c1
Suppress cppcheck invalidSyntax warninigs
For some reason cppcheck 1.90 is generating an invalidSyntax warning
when the BF64_SET macro is used in the zstream source.  The same
warning is not reported by cppcheck 2.3, nor is their any evident
problem with the expanded macro.  This appears to be an issue with
this version of cppcheck.  This commit annotates the source to suppress
the warning.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11700
2021-03-05 17:56:35 -08:00
Brian Behlendorf 6bbb44e157
Initialize ZIL buffers
When populating a ZIL destination buffer ensure it is always
zeroed before its contents are constructed.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Tom Caputi <caputit1@tcnj.edu>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11687
2021-03-05 14:45:13 -08:00
Jorgen Lundman 8a6d444825
Fix abd_get_offset_struct() may allocate new abd
Even when supplied with an abd to abd_get_offset_struct(), the call
to abd_get_offset_impl() can allocate a different abd. Ensure to
call abd_fini_struct() on the abd that is not used.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jorgen Lundman <lundman@lundman.net>
Closes #11683
2021-03-05 12:22:57 -08:00
Ryan Moeller ba74de88c0
FreeBSD module --enable-debug --enable-invariants
Wire up the --enable-debug flag for configure to the FreeBSD module
build.  Add --enable-invariants.

The running FreeBSD kernel config is used to detect whether to enable
INVARIANTS if not explicitly specified with --enable-invariants or
--disable-invariants.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11678
2021-03-05 12:16:41 -08:00
Thomas Lamprecht fd1c366f82
zpool: use tab to intend continuation from removal status
Bring the output of the removal status in line with the other
"fields" that zpool status outputs, and thus allows an parser to
easier detect this as continuation of the 'remove:' output.

Before:
remove: Removal of vdev 0 copied 282G in 0h9m, completed on [...]
    776K memory used for removed device mappings

Now:
remove: Removal of vdev 0 copied 282G in 0h9m, completed on [...]
	776K memory used for removed device mappings

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Closes #11674
2021-03-05 12:15:35 -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
Christian Schwarz e439ee83c1
linux: zvol: avoid heap allocation for zvol_request_sync=1
The spl_kmem_alloc showed up in some flamegraphs in a single-threaded
4k sync write workload at 85k IOPS on an
Intel(R) Xeon(R) Silver 4215 CPU @ 2.50GHz.
Certainly not a huge win but I believe the change is clean and
easy to maintain down the road.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11666
2021-03-03 08:15:28 -08:00
Jake Howard 3242b5358e
Add "zstd-fast" to help options for "compression" property
This value does work as expected, and is documented in the manpage.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Jake Howard <git@theorangeone.net>
Closes #11670
2021-03-03 08:14:19 -08:00
nssrikanth bedbc13daa
Cancel TRIM / initialize on FAULTED non-writeable vdevs
When a device which is actively trimming or initializing becomes
FAULTED, and therefore no longer writable, cancel the active
TRIM or initialization.  When the device is merely taken offline
with `zpool offline` then stop the operation but do not cancel it.
When the device is brought back online the operation will be
resumed if possible.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Vipin Kumar Verma <vipin.verma@hpe.com>
Signed-off-by: Srikanth N S <srikanth.nagasubbaraoseetharaman@hpe.com>
Closes #11588
2021-03-02 10:27:27 -08:00
Andriy Gapon 2e160dee97
Fix assert in FreeBSD-specific dmu_read_pages
The function has three similar pieces of code: for read-behind pages,
requested pages and read-ahead pages.  All three pieces had an
assert to ensure that the page is not mapped.  Later the assert was
relaxed to require that the page is not mapped for writing.  But that
was done in two places out of three.  This change fixes the third piece,
read-ahead.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andriy Gapon <avg@FreeBSD.org>
Closes #11654
2021-02-27 17:23:09 -08:00
Brian Behlendorf 3e73ea0c10
ZTS: zpool_trim_start_and_cancel_pos.ksh
Several of the TRIM tests were based of the initialize tests and
then adapted for TRIM.  The zpool_trim_start_and_cancel_pos.ksh
test was intended to be one such test but it was overlooked and
actually never adapted.  Update it accordingly.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11649
2021-02-27 17:19:50 -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
Coleman Kane 778fa36ee7 Linux 5.12 compat: replace bio_*_io_acct with disk_*_io_acct
The bio_*_acct functions became GPL exports, which causes the
kernel modules to refuse to compile. This replaces code with
alternate function calls to the disk_*_io_acct interfaces, which
are not GPL exports. This change was added in kernel commit
99dfc43ecbf67f12a06512918aaba61d55863efc.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #11639
2021-02-24 10:06:05 -08:00
Coleman Kane d939930fcc Linux 5.12 compat: bio->bi_disk member moved
The struct bio member bi_disk was moved underneath a new member named
bi_bdev. So all attempts to reference bio->bi_disk need to now become
bio->bi_bdev->bd_disk.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #11639
2021-02-24 10:04:34 -08:00
Brian Behlendorf 8e43fa12c5
Fix vdev_rebuild_thread deadlock
The metaslab_disable() call may block waiting for a txg sync.
Therefore it's important that vdev_rebuild_thread release the
SCL_CONFIG read lock it is holding before this call.  Failure
to do so can result in the txg_sync thread getting blocked
waiting for this lock which results in a deadlock.

Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewd-by: Srikanth N S <srikanth.nagasubbaraoseetharaman@hpe.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11647
2021-02-24 10:01:00 -08:00
Brian Behlendorf 75a089ed34
Fix overly broad locking in spa_vdev_config_exit()
Calling vdev_free() only requires the we acquire the spa config
SCL_STATE_ALL locks, not the SCL_ALL locks.  In particular, we need
need to avoid taking the SCL_CONFIG lock (included in SCL_ALL) as a
writer since this can lead to a deadlock.  The txg_sync_thread() may
block in spa_txg_history_init_io() when taking the SCL_CONFIG lock
as a reading when it detects there's a pending writer.

Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11585
2021-02-24 10:00:21 -08:00
Tony Hutter 3ee4e6d8b7
vdev_id: Fix partition regular expression
Given a DM device name, the old vdev_id script would extract any text
after a 'p' as the partition number.  It then appends "-part" + the
partition number to the name, giving a by-vdev name like "L0-part5".

This works fine if the DM name is like 'dm-2p5', but doesn't work if
the DM name is a multipath name like "mpatha".  In those cases it
incorrectly matches the 'p' in "mpatha", giving by-vdev names like
"L0-partatha".

This patch fixes the issue by making the partition regex match stricter.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #11637
2021-02-24 09:58:46 -08:00
Brian Behlendorf 1dfc82a14e
Linux: increase max nvlist_src size
On Linux increase the maximum allowed size of the src nvlist which
can be passed to the /dev/zfs ioctl.  Originally, this was set
to a maximum of KMALLOC_MAX_SIZE (4M) because it was kmalloc'd.
Since that time it's been converted to a vmalloc so that's no
longer a hard limit, and it's desirable for `zfs send/recv` to
allow larger nvlists so more snapshots can be sent at once.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #6572
Closes #11638
2021-02-24 09:57:18 -08:00
Prakash Surya f01eaed455
Add upper bound for slop space calculation
This change modifies the behavior of how we determine how much slop
space to use in the pool, such that now it has an upper limit. The
default upper limit is 128G, but is configurable via a tunable.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Prakash Surya <prakash.surya@delphix.com>
Closes #11023
2021-02-24 09:52:43 -08:00
Ryan Moeller 5156862960
Wrap bare EINVAL returns with SET_ERROR
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11636
2021-02-24 09:51:10 -08:00
Ryan Moeller 94fa1c3d96
Force symlink creation for zpool.d compat links
gmake install fails when zpool.d compat links already exist.

Force the symlinks to be recreated if already present.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@iXsystems.com>
Closes #11633
2021-02-24 09:49:59 -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
Adam D. Moss 9312e0fd1e
Fix error message when zfs module are already unloaded
Using zfs-sh -u on linux will fail with inaccurate message when the
zfs modules are already unloaded.  Deal with the case where a module 
is already unloaded; its USE_COUNT will be the empty string

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Adam Moss <c@yotes.com>
Closes #11627
2021-02-20 20:23:10 -08:00
fbynite 11f2e9a491
vdev_ops: don't try to call vdev_op_hold or vdev_op_rele when NULL
This prevents a panic after a SLOG add/removal on the root pool followed
by a zpool scrub.

When a SLOG is removed, a hole takes its place - the vdev_ops for a hole
is vdev_hole_ops, which defines the handler functions of vdev_op_hold
and vdev_op_rele as NULL.

This bug has been reported in illumos and FreeBSD, a different trigger
in the FreeBSD report though.

Credit for this patch goes to Patrick Mooney <pmooney@pfmooney.com>

Obtained from: illumos-gate commit: c65bd18728f34725
External-issue: https://www.illumos.org/issues/12981
External-issue: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=252396
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Wing <rob.fx907@gmail.com>
Closes #11623
2021-02-20 20:19:20 -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
Brian Atkinson c0801bf35a
Cleaning up uio headers
Making uio_impl.h the common header interface between Linux and FreeBSD
so both OS's can share a common header file. This also helps reduce code
duplication for zfs_uio_t for each OS.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Brian Atkinson <batkinson@lanl.gov>
Closes #11622
2021-02-20 20:16:50 -08:00
Christian Schwarz 52cb284f7b ztest: propagate -o to the zdb child process
I think this is the behavior that most users expect.

Future work: have a separate flag, e.g., -O, to specify separate
set_global_vars for the zdb child than for the ztest children.

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 22:45:16 -08:00
Christian Schwarz 2801e68d1b ztest: fix -o by calling set_global_var in child processes
Without set_global_var() in the child processes the -o option provides
little use.

Before this change set_global_var() was called as a side-effect of
getopt processing which only happens for the parent ztest process.

This change limits the set of options that can be set and makes them
available to the child through ztest_shared_opts_t.

Future work: support arbitrary option count and length.

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 22:45:10 -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
Don Brady 03e02e5b56
Checksum errors may not be counted
Fix regression seen in issue #11545 where checksum errors 
where not being counted or showing up in a zpool event.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@delphix.com>
Closes #11609
2021-02-19 22:33:15 -08:00
Mark Johnston e7adccf7f5
FreeBSD: disable the use of hardware crypto offload drivers for now
First, the crypto request completion handler contains a bug in that it
fails to reset fs_done correctly after the request is completed.  This
is only a problem for asynchronous drivers.  Second, some hardware
drivers have input constraints which ZFS does not satisfy.  For
instance, ccp(4) apparently requires the AAD length for AES-GCM to be a
multiple of the cipher block size, and with qat(4) the AES-GCM AAD
length may not be longer than 240 bytes.  FreeBSD's generic crypto
framework doesn't have a mechanism to automatically fall back to a
software implementation if a hardware driver cannot process a request,
and ZFS does not tolerate such errors.

The plan is to implement such a fallback mechanism, but with FreeBSD
13.0 approaching we should simply disable the use hardware drivers for
now.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Mark Johnston <markj@FreeBSD.org>
Closes #11612
2021-02-18 15:51:20 -08:00
Andriy Gapon 778869fa13
Fix report_mount_progress never calling set_progress_header
That happens because of an off-by-one mistake.
share_mount_one_cb() calls report_mount_progress(current=sm_done) after
having incremented sm_done by one.  Then report_mount_progress()
increments the parameter again.  It appears that that logic became
obsolete after commit a10d50f999, parallel zfs mount.

On FreeBSD I observe that zfs mount -a -v prints, for example,
    (null): (201/248)
That happens because set_progress_header() is never called.

With this change the output becomes correct:
    Mounting ZFS filesystems: (209/248)

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Andriy Gapon <avg@FreeBSD.org>
Closes #11607
2021-02-18 13:53:05 -08:00
Ryan Libby bf156c966b
Remove unused abd_alloc_scatter_offset_chunkcnt
Remove function that become unused after refactoring in
e2af2acce3.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Libby <rlibby@FreeBSD.org>
Closes #11614
2021-02-17 21:39:13 -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
Brian Behlendorf 35ec51796f
FreeBSD: disable edonr in zfs_mod_supported_feature()
Rather than conditionally compiling out the edonr code for FreeBSD
update zfs_mod_supported_feature() to indicate this feature is
unsupported.  This ensures that all spa features are defined on
every platform, even if they are not supported.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11605 
Issue #11468
2021-02-17 08:14:51 -08:00
José Luis Salvador Rufo aef1830f93
Support uClibc for the tests compilations
There are two issues that don't allow ZFS to be compiled using uClibc.
`backtrace()`, and `program_invocation_short_name` as a `const`.
This patch adds uClibc to the conditionals in the same way there are
already for Glibc for `backtrace()`; and removes the external param
`program_invocation_short_name` because its only used here for the
whole project.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: José Luis Salvador Rufo <salvador.joseluis@gmail.com>
Closes #11600
2021-02-16 21:51:46 -08:00
Ryan Moeller 436ab35a53
Make inline ABD predicates compatible with C++
FreeBSD's zfsd fails to build after e2af2acce3 due to strict type
checking errors from the implicit conversion between bool and boolean_t
in the inline predicate definitions in abd.h.

Use conditionals to return the correct value type from these functions.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Signed-off-by: Ryan Moeller <freqlabs@FreeBSD.org>
Closes #11592
2021-02-15 10:15:50 -08:00
Brian Behlendorf c1c31a835a
Linux 5.11 compat: META
Increase the Linux-Maximum version in the META file to 5.11.
All of the required compatibility patches have been merged.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11586
2021-02-10 10:11:21 -08:00
Arshad Hussain 677cdf7865
vdev_id: Support daisy-chained JBODs in multipath mode
Within function sas_handler() userspace commands like
'/usr/sbin/multipath' have been replaced with sourcing
device details from within sysfs which reduced a
significant amount of overhead and processing time.
Multiple JBOD enclosures and their order are sourced
from the bsg driver (/sys/class/enclosure) to isolate
chassis top-level expanders, which are then dynamically
indexed based on host channel of the multipath subordinate
disk member device being processed. Additionally added a
"mixed" mode for slot identification for environments where
a ZFS server system may contain SAS disk slots where there
is no expander (direct connect to HBA) while an attached
external JBOD with an expander have different slot identifier
methods.

How Has This Been Tested?
~~~~~~~~~~~~~~~~~~~~~~~~~

Testing was performed on a AMD EPYC based dual-server
high-availability multipath environment with multiple
HBAs per ZFS server and four SAS JBODs. The two primary
JBODs were multipath/cross-connected between the two
ZFS-HA servers. The secondary JBODs were daisy-chained
off of the primary JBODs using aligned SAS expander
channels (JBOD-0 expanderA--->JBOD-1 expanderA,
          JBOD-0 expanderB--->JBOD-1 expanderB, etc).
Pools were created, exported and re-imported, imported
globally with 'zpool import -a -d /dev/disk/by-vdev'.
Low level udev debug outputs were traced to isolate
and resolve errors.

Result:
~~~~~~~

Initial testing of a previous version of this change
showed how reliance on userspace utilities like
'/usr/sbin/multipath' and '/usr/bin/lsscsi' were
exacerbated by increasing numbers of disks and JBODs.
With four 60-disk SAS JBODs and 240 disks the time to
process a udevadm trigger was 3 minutes 30 seconds
during which nearly all CPU cores were above 80%
utilization. By switching reliance on userspace
utilities to sysfs in this version, the udevadm
trigger processing time was reduced to 12.2 seconds
and negligible CPU load.

This patch also fixes few shellcheck complains.

Reviewed-by: Gabriel A. Devenyi <gdevenyi@gmail.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Jeff Johnson <jeff.johnson@aeoncomputing.com>
Signed-off-by: Jeff Johnson <jeff.johnson@aeoncomputing.com>
Signed-off-by: Arshad Hussain <arshad.hussain@aeoncomputing.com>
Closes #11526
2021-02-09 13:04:09 -08:00
khng300 fc273894d2
Rename zfs_inode_update to zfs_znode_update_vfs
zfs_znode_update_vfs is a more platform-agnostic name than
zfs_inode_update. Besides that, the function's prototype is moved to
include/sys/zfs_znode.h as the function is also used in common code.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ka Ho Ng <khng300@gmail.com>
Sponsored by: The FreeBSD Foundation
Closes #11580
2021-02-09 11:17:29 -08:00
Kleber Tarcísio 4f22619ae3
Add an assert to clarify code
The first time through the loop prevdb and prevhdl are NULL.  They 
are then both set, but only prevdb is checked.  Add an ASSERT to 
make it clear that prevhdl must be set when prevdb is.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Kleber <klebertarcisio@yahoo.com.br>
Closes #10754
Closes #11575
2021-02-09 11:14:59 -08:00
Antonio Russo f8ce8aed0c
Set file mode during zfs_write
3d40b65 refactored zfs_vnops.c, which shared much code verbatim between
Linux and BSD.  After a successful write, the suid/sgid bits are reset,
and the mode to be written is stored in newmode.  On Linux, this was
propagated to both the in-memory inode and znode, which is then updated
with sa_update.

3d40b65 accidentally removed the initialization of newmode, which
happened to occur on the same line as the inode update (which has been
moved out of the function).

The uninitialized newmode can be saved to disk, leading to a crash on
stat() of that file, in addition to a merely incorrect file mode.

Reviewed-by: Ryan Moeller <ryan@ixsystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Antonio Russo <aerusso@aerusso.net>
Closes #11474 
Closes #11576
2021-02-08 09:15:05 -08:00
наб 7c64ee9e77
zfs-import-{cache,scan}: change condition to FileNotEmpty
When all pools are exported ZFS will generate an empty cache file.
This will cause the import service to fail, which is sub-optimal, 
since this means that dracut fails, and it necessary to run 
`zpool import -a` to boot, delete the file, and regenerate+reinstall 
the initrd.

This resolves the issue by treating an zero-length cache files the
same as a missing cache file.  This aligns the behavior with that
of the `zpool` command itself.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Richard Laager <rlaager@wiktel.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #11568
2021-02-05 11:25:22 -08:00
nssrikanth 32366649d3
Fixed issue with processing of EC_dev_remove event
The pool guid and vdev guid received by zfs_agent_post_event(),
which calls zfs_retire_recv(), are normally non-zero.  However,
later in this same method they may be unconditionally reset to
zero by the code which is intended to handle  multipath, spare
and l2arc vdevs.  This will result in the EC_dev_remove not
being handled.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>\
Co-authored-by: Vipin Kumar Verma <vipin.verma@hpe.com>
Signed-off-by: Srikanth N S <srikanth.nagasubbaraoseetharaman@hpe.com>
Closes #11564
2021-02-05 08:30:50 -08:00
Brian Behlendorf d66f017c17
zfs-list.8: clarify listing snapshots
Clarify how to include snapshots in the `zpool list` output by
referencing the full name of the `listsnapshots` pool property,
and the `zpool list -t snapshot` option.

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #11562
Closes #11565
2021-02-04 09:56:28 -08:00
Christian Schwarz 84268b099b Document monotonicity of dmu_tx_assign() and txg_hold_open()
Expand the comments to make it clear exactly what is guaranteed
by dmu_tx_assign() and txg_hold_open().  Additionally, update
the comment which refers to txg_exit() when it should reference
txg_rele_to_sync().

Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Christian Schwarz <me@cschwarz.com>
Closes #11521
2021-02-02 10:11:37 -08:00
George Melikov 9eee7fce3b zts-report.py: ignore some skipped tests in Github CI
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #11554
2021-02-02 09:37:23 -08:00
George Melikov aa743acc79 CI: add ubuntu-* functional tests runner
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Melikov <mail@gmelikov.ru>
Closes #11554
2021-02-02 09:37:23 -08:00