Commit Graph

5495 Commits

Author SHA1 Message Date
Coleman Kane c33b623535 Linux 5.9 compat: make_request_fn replaced with submit_bio interface
The make_request_fn and associated API was replaced recently in a
Linux 5.9 merge, to replace its functionality with a new submit_bio
member in struct block_device_operations.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #10696
(cherry picked from commit d817c17100)
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
2020-09-15 21:16:58 +00:00
Coleman Kane 42e9450831 Linux 5.9 compat: Update NR_SLAB_RECLAIMABLE to NR_SLAB_RECLAIMABLE_B
This change appears to primarily be a name change for the enum. Had
to update the test logic so that it works so long as either one of
these is present (favoring the newer one). Additionally, as this is
newer, it only shows up in node_page_item, so this commit doesn't
test zone_page_item for the same enum.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #10696
(cherry picked from commit dcdc12e8ba)
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
2020-09-15 21:16:58 +00:00
Coleman Kane 70719549f0 Linux 5.9 compat: add linux/blkdev.h include
Many of the block device operations (often functions with bdev in
the name) were moved into linux/blkdev.h from linux/fs.h. Seems
that this header is already included where needed in the code, but
in the autoconf tests it was missing causing false negatives. This
commit has those tests include linux/fs.h (old location) and now
also linux/blkdev.h (new locations).

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes #10696
(cherry picked from commit 1823c8fe6a)
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
2020-09-15 21:16:58 +00:00
Neal Gompa (ニール・ゴンパ) 2d2ce04b99 lib/libzfs, rpm: Install pkgconfig files in the correct directory (#10628)
libzfs is an architecture-specific library, thus its pkgconfig files
should also be installed into the architecture-specific path for
pkgconfig files so that systems that support multilib or multiarch
installation will be able to work properly.

Signed-off-by: Neal Gompa <ngompa@datto.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
2020-09-15 21:16:58 +00:00
Eli Schwartz 638edf1d42 Linux 5.8 compat: __vmalloc()
The `pgprot` argument has been removed from `__vmalloc` in Linux 5.8,
being `PAGE_KERNEL` always now [1].

Detect this during configure and define a wrapper for older kernels.

[1] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/mm/vmalloc.c?h=next-20200605&id=88dca4ca5a93d2c09e5bbc6a62fbfc3af83c4fca

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Co-authored-by: Michael Niewöhner <foss@mniewoehner.de>
Signed-off-by: Sebastian Gottschall <s.gottschall@dd-wrt.com>
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Closes #10422

(cherry picked from commit 080102a1b6)
- apply to 0.8.4 before certain files were moved around
- config/kernel-kmem.m4 exists in git but not release tarballs because
  it is unused; introduce it in a new file to prevent conflicts
- linux/mm.h is included in git master via sys/kmem.h; do not remove it
  here or the build will error due to undefined is_vmalloc_addr()

Original-patch-by: Michael Niewöhner <c0d3z3r0@users.noreply.github.com>
Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
2020-09-15 21:16:58 +00:00
Jorgen Lundman 04837c8dcb Replace sprintf()->snprintf() and strcpy()->strlcpy()
The strcpy() and sprintf() functions are deprecated on some platforms.
Care is needed to ensure correct size is used.  If some platforms
miss snprintf, we can add a #define to sprintf, likewise strlcpy().

The biggest change is adding a size parameter to zfs_id_to_fuidstr().

The various *_impl_get() functions are only used on linux and have
not yet been updated.
2020-09-15 21:16:58 +00:00
George Amanakis 7b98b55282 Fix gcc 10.1 stringop-truncation error
As we do not expect the destination of these strncpy calls to be NULL
terminated, substitute them with memcpy.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: George Amanakis <gamanakis@gmail.com>
Closes #10346
2020-09-15 21:16:58 +00:00
ColMelvin 88451845af RPM: Remove old versions of DKMS on upgrade
Due to a mismatch between the text and a regex looking for that text,
the `%preuninstall` script would never run the `dkms remove` command
necessary to avoid corrupting the DKMS data configuration.  Increase
regex specificity to avoid this issue.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Chris Lindee <chris.lindee+github@gmail.com>
Closes: #9891
Closes #10327
2020-09-15 21:16:58 +00:00
Brian Behlendorf 4f5dcc9dc1 Add longjmp support for Thumb-2
When a Thumb-2 kernel is being used, then longjmp must be implemented
using the Thumb-2 instruction set in module/lua/setjmp/setjmp_arm.S.

Original-patch-by: @jsrlabs
Reviewed-by: @awehrfritz
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #7408 
Closes #9957 
Closes #9967
2020-09-15 17:07:40 +00:00
Tony Hutter 6b18d7df37 Tag zfs-0.8.4
META file and changelog updated.

Signed-off-by: Tony Hutter <hutter2@llnl.gov>

TEST_ZIMPORT_SKIP="yes"
2020-05-12 10:53:32 -07:00
George Amanakis 4fe5f9016f Add missing zfs_refcount_destroy() in key_mapping_rele()
Otherwise when running with reference_tracking_enable=TRUE mounting
and unmounting an encrypted dataset panics with:

Call Trace:
 dump_stack+0x66/0x90
 slab_err+0xcd/0xf2
 ? __kmalloc+0x174/0x260
 ? __kmem_cache_shutdown+0x158/0x240
 __kmem_cache_shutdown.cold+0x1d/0x115
 shutdown_cache+0x11/0x140
 kmem_cache_destroy+0x210/0x230
 spl_kmem_cache_destroy+0x122/0x3e0 [spl]
 zfs_refcount_fini+0x11/0x20 [zfs]
 spa_fini+0x4b/0x120 [zfs]
 zfs_kmod_fini+0x6b/0xa0 [zfs]
 _fini+0xa/0x68c [zfs]
 __x64_sys_delete_module+0x19c/0x2b0
 do_syscall_64+0x5b/0x1a0
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Reviewed-By: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Tom Caputi <tcaputi@datto.com>
Signed-off-by: George Amanakis <gamanakis@gmail.com>
Closes #10246
2020-05-12 10:53:32 -07:00
Brian Behlendorf e6142ac0f2 Linux 5.7 compat: blk_alloc_queue()
Commit https://github.com/torvalds/linux/commit/3d745ea5 simplified
the blk_alloc_queue() interface by updating it to take the request
queue as an argument.  Add a wrapper function which accepts the new
arguments and internally uses the available interfaces.

Other minor changes include increasing the Linux-Maximum to 5.6 now
that 5.6 has been released.  It was not bumped to 5.7 because this
release has not yet been finalized and is still subject to change.

Added local 'struct zvol_state_os *zso' variable to zvol_alloc.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10181
Closes #10187
2020-05-12 10:53:32 -07:00
Matthew Macy ea15efd4c9 Prefix struct rangelock
A struct rangelock already exists on FreeBSD.  Add a zfs_ prefix as
per our convention to prevent any conflict with existing symbols.
This change is a follow up to 2cc479d0.

Reviewed-by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Matt Macy <mmacy@FreeBSD.org>
Closes #9534
2020-05-12 10:53:32 -07:00
Arvind Sankar 5c474614ff Fix icp include directories for in-tree build
When zfs is built in-tree using --enable-linux-builtin, the compile
commands are executed from the kernel build directory. If the build
directory is different from the kernel source directory, passing
-Ifs/zfs/icp will not find the headers as they are not present in the
build directory.

Fix this by adding @abs_top_srcdir@ to pull the headers from the zfs
source tree instead.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Arvind Sankar <nivedita@alum.mit.edu>
Closes #10021
2020-05-12 10:53:32 -07:00
Attila Fülöp 3d09d3809b ICP: gcm-avx: Support architectures lacking the MOVBE instruction
There are a couple of x86_64 architectures which support all needed
features to make the accelerated GCM implementation work but the
MOVBE instruction. Those are mainly Intel Sandy- and Ivy-Bridge
and AMD Bulldozer, Piledriver, and Steamroller.

By using MOVBE only if available and replacing it with a MOV
followed by a BSWAP if not, those architectures now benefit from
the new GCM routines and performance is considerably better
compared to the original implementation.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Adam D. Moss <c@yotes.com>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Followup #9749 
Closes #10029
2020-05-12 10:53:32 -07:00
Attila Fülöp 76354f945e ICP: Improve AES-GCM performance
Currently SIMD accelerated AES-GCM performance is limited by two
factors:

a. The need to disable preemption and interrupts and save the FPU
state before using it and to do the reverse when done. Due to the
way the code is organized (see (b) below) we have to pay this price
twice for each 16 byte GCM block processed.

b. Most processing is done in C, operating on single GCM blocks.
The use of SIMD instructions is limited to the AES encryption of the
counter block (AES-NI) and the Galois multiplication (PCLMULQDQ).
This leads to the FPU not being fully utilized for crypto
operations.

To solve (a) we do crypto processing in larger chunks while owning
the FPU. An `icp_gcm_avx_chunk_size` module parameter was introduced
to make this chunk size tweakable. It defaults to 32 KiB. This step
alone roughly doubles performance. (b) is tackled by porting and
using the highly optimized openssl AES-GCM assembler routines, which
do all the processing (CTR, AES, GMULT) in a single routine. Both
steps together result in up to 32x reduction of the time spend in
the en/decryption routines, leading up to approximately 12x
throughput increase for large (128 KiB) blocks.

Lastly, this commit changes the default encryption algorithm from
AES-CCM to AES-GCM when setting the `encryption=on` property.

Reviewed-By: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Jason King <jason.king@joyent.com>
Reviewed-By: Tom Caputi <tcaputi@datto.com>
Reviewed-By: Richard Laager <rlaager@wiktel.com>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes #9749
2020-05-12 10:53:32 -07:00
Fabio Scaccabarozzi 590ababea2 Bugfix/fix uio partial copies
In zfs_write(), the loop continues to the next iteration without
accounting for partial copies occurring in uiomove_iov when 
copy_from_user/__copy_from_user_inatomic return a non-zero status.
This results in "zfs: accessing past end of object..." in the 
kernel log, and the write failing.

Account for partial copies and update uio struct before returning
EFAULT, leave a comment explaining the reason why this is done.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: ilbsmart <wgqimut@gmail.com>
Signed-off-by: Fabio Scaccabarozzi <fsvm88@gmail.com>
Closes #8673 
Closes #10148
2020-05-12 10:53:32 -07:00
Mark Roper 009ff83548 Prevent deadlock in arc_read in Linux memory reclaim callback
Using zfs with Lustre, an arc_read can trigger kernel memory allocation
that in turn leads to a memory reclaim callback and a deadlock within a
single zfs process. This change uses spl_fstrans_mark and
spl_trans_unmark to prevent the reclaim attempt and the deadlock
(https://zfsonlinux.topicbox.com/groups/zfs-devel/T4db2c705ec1804ba).
The stack trace observed is:

    __schedule at ffffffff81610f2e
    schedule at ffffffff81611558
    schedule_preempt_disabled at ffffffff8161184a
    __mutex_lock at ffffffff816131e8
    arc_buf_destroy at ffffffffa0bf37d7 [zfs]
    dbuf_destroy at ffffffffa0bfa6fe [zfs]
    dbuf_evict_one at ffffffffa0bfaa96 [zfs]
    dbuf_rele_and_unlock at ffffffffa0bfa561 [zfs]
    dbuf_rele_and_unlock at ffffffffa0bfa32b [zfs]
    osd_object_delete at ffffffffa0b64ecc [osd_zfs]
    lu_object_free at ffffffffa06d6a74 [obdclass]
    lu_site_purge_objects at ffffffffa06d7fc1 [obdclass]
    lu_cache_shrink_scan at ffffffffa06d81b8 [obdclass]
    shrink_slab at ffffffff811ca9d8
    shrink_node at ffffffff811cfd94
    do_try_to_free_pages at ffffffff811cfe63
    try_to_free_pages at ffffffff811d01c4
    __alloc_pages_slowpath at ffffffff811be7f2
    __alloc_pages_nodemask at ffffffff811bf3ed
    new_slab at ffffffff81226304
    ___slab_alloc at ffffffff812272ab
    __slab_alloc at ffffffff8122740c
    kmem_cache_alloc at ffffffff81227578
    spl_kmem_cache_alloc at ffffffffa048a1fd [spl]
    arc_buf_alloc_impl at ffffffffa0befba2 [zfs]
    arc_read at ffffffffa0bf0924 [zfs]
    dbuf_read at ffffffffa0bf9083 [zfs]
    dmu_buf_hold_by_dnode at ffffffffa0c04869 [zfs]

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Mark Roper <markroper@gmail.com>
Closes #9987
2020-05-12 10:53:32 -07:00
Alexander Motin 4e55349857 Fix infinite scan on a pool with only special allocations
Attempt to run scrub or resilver on a new pool containing only special
allocations (special vdev added on creation) caused infinite loop
because of dsl_scan_should_clear() limiting memory usage to 5% of pool
size, which it calculated accounting only normal allocation class.

Addition of special and just in case dedup classes fixes the issue.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #10106 
Closes #8694
2020-05-12 10:53:32 -07:00
Brian Behlendorf 0cbed7f026 Static symbols exported by ICP
The crypto_cipher_init_prov and crypto_cipher_init are declared static
and should not be exported by the ICP.  This resolves the following
warnings observed when building with the 5.4 kernel.

WARNING: "crypto_cipher_init" [.../icp] is a static EXPORT_SYMBOL
WARNING: "crypto_cipher_init_prov" [.../icp] is a static EXPORT_SYMBOL

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9791
2020-05-12 10:53:32 -07:00
Brian Behlendorf 6e8c4dc460 Linux 5.6 compat: struct proc_ops
The proc_ops structure was introduced to replace the use of of the
file_operations structure when registering proc handlers.  This
change creates a new kstat_proc_op_t typedef for compatibility
which can be used to pass around the correct structure.

This change additionally adds the 'const' keyword to all of the
existing proc operations structures.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9961
2020-05-12 10:53:32 -07:00
Brian Behlendorf 06b473a8ae Linux 5.6 compat: timestamp_truncate()
The timestamp_truncate() function was added, it replaces the existing
timespec64_trunc() function.  This change renames our wrapper function
to be consistent with the upstream name and updates the compatibility
code for older kernels accordingly.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9956
Closes #9961
2020-05-12 10:53:32 -07:00
Brian Behlendorf ba2cf53545 Linux 5.6 compat: ktime_get_raw_ts64()
The getrawmonotonic() and getrawmonotonic64() interfaces have been
fully retired.  Update gethrtime() to use the replacement interface
ktime_get_raw_ts64() which was introduced in the 4.18 kernel.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10052
Closes #10064
2020-05-12 10:53:32 -07:00
Brian Behlendorf cf2a3464e9 Linux 5.6 compat: time_t
As part of the Linux kernel's y2038 changes the time_t type has been
fully retired.  Callers are now required to use the time64_t type.

Rather than move to the new type, I've removed the few remaining
places where a time_t is used in the kernel code.  They've been
replaced with a uint64_t which is already how ZFS internally
handled these values.

Going forward we should work towards updating the remaining user
space time_t consumers to the 64-bit interfaces.

Reviewed-by: Matthew Macy <mmacy@freebsd.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #10052
Closes #10064
2020-05-12 10:53:32 -07:00
Romain Dolbeau 43135b3746 Fix static data to link with -fno-common
-fno-common is the new default in GCC 10, replacing -fcommon in
GCC <= 9, so static data must only be allocated once.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Romain Dolbeau <romain.dolbeau@european-processor-initiative.eu>
Closes #9943
2020-05-12 10:53:32 -07:00
alex 6f42372635 zfs_get: change time format string from %k to %H
Issue #10090 reported that snapshots created between midnight and 1 AM
are missing a padded zero in the creation property

This change fixes the bug reported in issue #10090 where snapshots
created between midnight and 1 AM were missing a padded zero in the
creation timestamp output.

The leading zero was missing because the time format string used `%k`
which formats the hour as a decimal number from 0 to 23 where single
digits are preceded by blanks[0] and is fixed by changing it to `%H`
which formats the hour as 00-23.

The difference in output is as below

```
-Thu Mar 26  0:39 2020
+Thu Mar 26 00:39 2020
```

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Igor Kozhukhov <igor@dilos.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Alex John <alex@stty.io>
Closes #10090 
Closes #10153
2020-05-12 10:53:32 -07:00
Matthew Ahrens fc6700425a Deprecate deduplicated send streams
Dedup send can only deduplicate over the set of blocks in the send
command being invoked, and it does not take advantage of the dedup table
to do so. This is a very common misconception among not only users, but
developers, and makes the feature seem more useful than it is. As a
result, many users are using the feature but not getting any benefit
from it.

Dedup send requires a nontrivial expenditure of memory and CPU to
operate, especially if the dataset(s) being sent is (are) not already
using a dedup-strength checksum.

Dedup send adds developer burden. It expands the test matrix when
developing new features, causing bugs in released code, and delaying
development efforts by forcing more testing to be done.

As a result, we are deprecating the use of `zfs send -D` and receiving
of such streams.  This change adds a warning to the man page, and also
prints the warning whenever dedup send or receive are used.

In a future release, we plan to:
1. remove the kernel code for generating deduplicated streams
2. make `zfs send -D` generate regular, non-deduplicated streams
3. remove the kernel code for receiving deduplicated streams
4. make `zfs receive` of deduplicated streams process them in userland
   to "re-duplicate" them, so that they can still be received.

Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #7887
Closes #10117
2020-05-12 10:53:32 -07:00
Richard Laager e1b0704568 Fix zfs-functions packaging bug
This fixes a bug where the generated zfs-functions was being included
along with original zfs-functions.in in the make dist tarball.  This
caused an unfortunate series of events during build/packaging that
resulted in the RPM-installed /etc/zfs/zfs-functions listing the
paths as:

ZFS="/usr/local/sbin/zfs"
ZED="/usr/local/sbin/zed"
ZPOOL="/usr/local/sbin/zpool"

When they should have been:

ZFS="/sbin/zfs"
ZED="/sbin/zed"
ZPOOL="/sbin/zpool"

This affects init.d (non-systemd) distros like CentOS 6.

/etc/default/zfs and /etc/zfs/zfs-functions are also used by the
initramfs, so they need to be built even when init.d support is not.
They have been moved to the (new) etc/default and (existing) etc/zfs
source directories, respectively.

Fixes: #9443

Co-authored-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
2020-05-12 10:53:32 -07:00
Richard Laager d7c076c793 initramfs: Eliminate substitutions
These are now handled in zfs-functions, so this is all duplicative and
unnecessary.

Signed-off-by: Richard Laager <rlaager@wiktel.com>
2020-05-12 10:53:32 -07:00
Richard Laager e4185a03de Delete built init scripts in make clean
Previously, they were being deleted in make distclean.  This brings it
in line with the example:
https://www.gnu.org/software/automake/manual/html_node/Scripts.html

Signed-off-by: Richard Laager <rlaager@wiktel.com>
2020-05-12 10:53:32 -07:00
Ryan Moeller b06256a997 Restore :: in Makefile.am
The double-colon looked like a typo, but it's actually an obscure
feature. Rules with :: may appear multiple times and are run
independently of one another in the order they appear. The use of ::
for distclean-local was conventional, not accidental.

Add comments to indicate the intentional use of double-colon rules.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ryan Moeller <ryan@ixsystems.com>
Closes #9210
2020-05-12 10:53:32 -07:00
Richard Laager f427973159 Make init scripts depend on Makefile
This brings it in line with the example:
https://www.gnu.org/software/automake/manual/html_node/Scripts.html

This way, if the substitution code is changed, they should update.

Signed-off-by: Richard Laager <rlaager@wiktel.com>
2020-05-12 10:53:32 -07:00
InsanePrawn 4bc401b30f Systemd mount generator: don't fail keyload from file if already loaded
Previously the generated keyload units for encryption roots with
keylocation=file://* didn't contain the code to detect if the key
was already loaded and would be marked failed in such situations.

Move the code to check whether the key is already loaded
from keylocation=prompt handling to general key loading code.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: InsanePrawn <insane.prawny@gmail.com>
Closes #10103
2020-05-12 10:53:32 -07:00
InsanePrawn b19477898c Systemd mount generator: Generate noauto units; add control properties
This commit refactors the systemd mount generators and makes the
following major changes:

- The generator now generates units for datasets marked canmount=noauto,
  too. These units are NOT WantedBy local-fs.target.
  If there are multiple noauto datasets for a path, no noauto unit will
  be created. Datasets with canmount=on are prioritized.

- Introduces handling of new user properties which are now included in
  the zfs-list.cache files:
    - org.openzfs.systemd:requires:
      List of units to require for this mount unit
    - org.openzfs.systemd:requires-mounts-for:
      List of mounts to require by this mount unit
    - org.openzfs.systemd:before:
      List of units to order after this mount unit
    - org.openzfs.systemd:after:
      List of units to order before this mount unit
    - org.openzfs.systemd:wanted-by:
      List of units to add a Wants dependency on this mount unit to
    - org.openzfs.systemd:required-by:
      List of units to add a Requires dependency on this mount unit to
    - org.openzfs.systemd:nofail:
      Toggles between a wants and a requires dependency.
    - org.openzfs.systemd:ignore:
      Do not generate a mount unit for this dataset.

  Consult the updated man page for detailed documentation.

- Restructures and extends the zfs-mount-generator(8) man page with the
  above properties, information on unit ordering and a license header.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Antonio Russo <antonio.e.russo@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: InsanePrawn <insane.prawny@gmail.com>
Closes #9649
2020-05-12 10:53:32 -07:00
InsanePrawn d1436d58a7 Systemd mount generator: Silence shellcheck warnings
Silences a warning about an intentionally unquoted variable.
Fixes a warning caused by strings split across lines by slightly
refactoring keyloadcmd.

Reviewed-by: Richard Laager <rlaager@wiktel.com>
Reviewed-by: Antonio Russo <antonio.e.russo@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: InsanePrawn <insane.prawny@gmail.com>
Closes #9649
2020-05-12 10:53:32 -07:00
Brian Behlendorf 13bfad0c96 Fix CONFIG_MODULES=no Linux kernel config
When configuring as builtin (--enable-linux-builtin) for kernels
without loadable module support (CONFIG_MODULES=n) only the object
file is created.  Never a loadable kmod.

Update ZFS_LINUX_TRY_COMPILE to handle this in a manor similar to
the ZFS_LINUX_TEST_COMPILE_ALL macro.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9887
Closes #10063
2020-05-12 10:53:32 -07:00
Brian Behlendorf 49f065d5a4 Linux 5.5 compat: blkg_tryget()
Commit https://github.com/torvalds/linux/commit/9e8d42a0f accidentally
converted the static inline function blkg_tryget() to GPL-only for
kernels built with CONFIG_PREEMPT_RCU=y and CONFIG_BLK_CGROUP=y.

Resolve the build issue by providing our own equivalent functionality
when needed which uses rcu_read_lock_sched() internally as before.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9745
Closes #10072
2020-05-12 10:53:32 -07:00
Richard Laager ebc8e360d5 zfs-mount-generator: Fix escaping for /
The correct name for the mount unit for / is "-.mount", not ".mount".

Reviewed-by: InsanePrawn <insane.prawny@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Antonio Russo <antonio.e.russo@gmail.com>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #9970
2020-05-12 10:53:32 -07:00
Matthew Ahrens d4e04cc145 Missed wakeup when growing kmem cache
When growing the size of a (VMEM or KVMEM) kmem cache, spl_cache_grow()
always does taskq_dispatch(spl_cache_grow_work), and then waits for the
KMC_BIT_GROWING to be cleared by the taskq thread.

The taskq thread (spl_cache_grow_work()) does:
1. allocate new slab and add to list
2. wake_up_all(skc_waitq)
3. clear_bit(KMC_BIT_GROWING)

Therefore, the waiting thread can wake up before GROWING has been
cleared.  It will see that the growing has not yet completed, and go
back to sleep until it hits the 100ms timeout.

This can have an extreme performance impact on workloads that alloc/free
more than fits in the (statically-sized) magazines.  These workloads
allocate and free slabs with high frequency.

The problem can be observed with `funclatency spl_cache_grow`, which on
some workloads shows that 99.5% of the time it takes <64us to allocate
slabs, but we spend ~70% of our time in outliers, waiting for the 100ms
timeout.

The fix is to do `clear_bit(KMC_BIT_GROWING)` before
`wake_up_all(skc_waitq)`.

A future investigation should evaluate if we still actually need to
taskq_dispatch() at all, and if so on which kernel versions.

Reviewed-by: Paul Dagnelie <pcd@delphix.com>
Reviewed-by: Pavel Zakharov <pavel.zakharov@delphix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Wilson <gwilson@delphix.com>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #9989
2020-05-12 10:53:32 -07:00
Richard Laager f3bf67d04d Order zfs-import-*.service after multipathd
If someone is using both multipathd and ZFS, they are probably using
them together.  Ordering the zpool imports after multipathd is ready
fixes import issues for multipath configurations.

Tested-by: Mike Pastore <mike@oobak.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Richard Laager <rlaager@wiktel.com>
Closes #9863
2020-05-12 10:53:32 -07:00
lorenz 3916ac5a56 Avoid here-documents in systemd mount generator
On some systems - openSUSE, for example - there is not yet a writeable
temporary file system available, so bash bails out with an error,

  'cannot create temp file for here-document: Read-only file system',

on the here documents in zfs-mount-generator. The simple fix is to
change these into a multi-line echo statement.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-By: Richard Laager <rlaager@wiktel.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Lorenz Hüdepohl <dev@stellardeath.org>
Closes #9802
2020-05-12 10:53:32 -07:00
Tony Hutter 9bb3d57b03 Tag zfs-0.8.3
META file and changelog updated.

Signed-off-by: Tony Hutter <hutter2@llnl.gov>
2020-01-22 13:51:17 -08:00
Tony Hutter 9e36832d31 Fix zfs-0.8.3 "qat.h"
This applies the patch from:

https://github.com/zfsonlinux/zfs/issues/9476#issuecomment-543854498

...which was originally from:

9fa8b5b  QAT related bug fixes

This allows QAT to build.

Signed-off-by: Tony Hutter <hutter2@llnl.gov>
2020-01-22 13:49:07 -08:00
John Poduska 504aae708e ZTS: Fixes for spurious failures of resilver_restart_001 test
The resilver restart test was reported as failing about 2% of the
time. Two issues were found:

- The event log wasn't large enough, so resilver events were missing
- One 'zpool sync' wasn't enough for resilver to start after zinject

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Kennedy <john.kennedy@delphix.com>
Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Signed-off-by: John Poduska <jpoduska@datto.com>
Issue #9588
Closes #9677
Closes #9703
2020-01-22 13:49:07 -08:00
jwpoduska 1be3cba381 Prevent unnecessary resilver restarts
If a device is participating in an active resilver, then it will have a
non-empty DTL. Operations like vdev_{open,reopen,probe}() can cause the
resilver to be restarted (or deferred to be restarted later), which is
unnecessary if the DTL is still covered by the current scan range. This
is similar to the logic in vdev_dtl_should_excise() where the DTL can
only be excised if it's max txg is in the resilvered range.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: John Gallagher <john.gallagher@delphix.com>
Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Signed-off-by: John Poduska <jpoduska@datto.com>
Issue #840
Closes #9155
Closes #9378
Closes #9551
Closes #9588
2020-01-22 13:49:07 -08:00
Brian Behlendorf 0fd9a28de8 Fix QAT allocation failure return value
When qat_compress() fails to allocate the required contiguous memory
it mistakenly returns success.  This prevents the fallback software
compression from taking over and (un)compressing the block.

Resolve the issue by correctly setting the local 'status' variable
on all exit paths.  Furthermore, initialize it to CPA_STATUS_FAIL
to ensure qat_compress() always fails safe to guard against any
similar bugs in the future.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9784
Closes #9788
2020-01-22 13:49:07 -08:00
Tony Hutter 7eaaa6f32e Fix zfs-0.8.3 zfs_receive_raw test case
Fix the zfs_receive_raw test case for zfs-0.8.3 by including the
one-liner fix from loli10k described here:
https://github.com/zfsonlinux/zfs/pull/9776#issuecomment-570252679

Signed-off-by: Tony Hutter <hutter2@llnl.gov>
2020-01-22 13:49:07 -08:00
Tony Hutter 543b0c644a Fix zfs-0.8.3 'make lint' warnings
Fix these lint warnings on zfs-0.8.3:

$ make lint
[module/spl/spl-vnode.c:494]: (error) Uninitialized variable: fp
[module/spl/spl-vnode.c:706]: (error) Uninitialized variable: fp
[module/spl/spl-vnode.c:706]: (error) Uninitialized variable: next_fp
^CMakefile:1632: recipe for target 'cppcheck' failed
make: *** [cppcheck] Interrupt

Signed-off-by: Tony Hutter <hutter2@llnl.gov>
2020-01-22 13:49:07 -08:00
Brian Behlendorf 82be309780 ZTS: Cleanup partition tables
The cleanup_devices function should remove any partitions created
on the device and force the partition table to be reread.  This
is needed to ensure that blkid has an up to date version of what
devices and partitions are used by zfs.

The cleanup_devices call was removed from inuse_008_pos.ksh since
it operated on partitions instead of devices and was not needed.

Lastly ddidecode may be called by parted and was therefore added
to the constrained path.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #9806
2020-01-22 13:49:07 -08:00
Ned Bass 0a37abc206 zdb: print block checksums with 6 d's of verbosity
Include checksums in the output of 'zdb -dddddd' along
with other indirect block information already displayed.

Example output follows (with long lines trimmed):

$ zdb -dddddd tank/fish 128
Dataset tank/fish [ZPL], ID 259, cr_txg 10, 16.2M, 93 objects, rootbp DV

    Object  lvl   iblk   dblk  dsize  dnsize  lsize   %full  type
       128    2   128K   128K   634K     512     1M  100.00  ZFS plain f
                                               168   bonus  System attri
    dnode flags: USED_BYTES USERUSED_ACCOUNTED USEROBJUSED_ACCOUNTED
    dnode maxblkid: 7
    path    /c
    uid     0
    gid     0
    atime    Sat Dec 21 10:49:26 2019
    mtime    Sat Dec 21 10:49:26 2019
    ctime    Sat Dec 21 10:49:26 2019
    crtime    Sat Dec 21 10:49:26 2019
    gen    41
    mode    100755
    size    964592
    parent    34
    links    1
    pflags    40800000104
Indirect blocks:
               0 L1  0:2c0000:400 0:c021e00:400 20000L/400P F=8 B=41/41
               0  L0 0:227800:13800 20000L/13800P F=1 B=41/41 cksum=167a
           20000  L0 0:25ec00:17c00 20000L/17c00P F=1 B=41/41 cksum=2312
           40000  L0 0:276800:18400 20000L/18400P F=1 B=41/41 cksum=24e0
           60000  L0 0:2a7800:18800 20000L/18800P F=1 B=41/41 cksum=25be
           80000  L0 0:28ec00:18c00 20000L/18c00P F=1 B=41/41 cksum=2579
           a0000  L0 0:24d000:11c00 20000L/11c00P F=1 B=41/41 cksum=140a
           c0000  L0 0:23b000:12000 20000L/12000P F=1 B=41/41 cksum=164e
           e0000  L0 0:221e00:5a00 20000L/5a00P F=1 B=41/41 cksum=9de790

        segment [0000000000000000, 0000000000100000) size    1M

Reviewed-by: Kjeld Schouten <kjeld@schouten-lebbing.nl>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ned Bass <bass6@llnl.gov>
2020-01-22 13:49:07 -08:00