03987f71e3 (#16069) added a workaround to get the blk-mq hardware
context for older kernels that don't cache it in the struct request.
However, this workaround appears to be incomplete.
In 4.19, the rq data context is optional. If its not initialised, then
the cached rq->cpu will be -1, and so using it to index into mq_map
causes a crash.
Given that the upstream 4.19 is now in extended LTS and rarely seen,
RHEL8 4.18+ has long carried "modern" blk-mq support, and the cached
hardware context has been available since 5.1, I'm not going to huge
lengths to get queue selection correct for the very few people that are
likely to feel it. To that end, we simply call raw_smp_processor_id() to
get a valid CPU id and use that instead.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes#17597
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17591
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17591
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17591
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17591
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17591
dprintf() is a no-op in production builds, giving a compile warning. So,
refactor it a little to keep all the strings inside the function, and
then make the function a no-op when ZFS_DEBUG is not set.
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Fedor Uporov <fuporov.vstack@gmail.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Railway Corporation
Closes#17596
Casting unused returns to (void) is already of dubious value, but it's
entirely meaningless on functions that are defined as void return.
Remove the clutter.
Reviewed-by: Allan Jude <allan@klarasystems.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Fedor Uporov <fuporov.vstack@gmail.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Railway Corporation
Closes#17596
Based on previous commit this implements `zfs rewrite -P` flag,
making ZFS to keep blocks logical birth times while rewriting
files. It should exclude the rewritten blocks from incremental
sends, snapshot diffs, etc. Snapshots space usage same time will
reflect the additional space usage from newly allocated blocks.
Since this begins to use new "rewrite" flag in the block pointers,
this commit introduces a new read-compatible per-dataset feature
physical_rewrite. It must be enabled for the command to not fail,
it is activated on first use and deactivated on deletion of the
last affected dataset.
Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes#17565
During regular block writes ZFS sets both logical and physical
birth times equal to the current TXG. During dedup and block
cloning logical birth time is still set to the current TXG, but
physical may be copied from the original block that was used.
This represents the fact that logically user data has changed,
but the physically it is the same old block.
But block rewrite introduces a new situation, when block is not
changed logically, but stored in a different place of the pool.
From ARC, scrub and some other perspectives this is a new block,
but for example for user applications or incremental replication
it is not. Somewhat similar thing happen during remap phase of
device removal, but in that case space blocks are still acounted
as allocated at their logical birth times.
This patch introduces a new "rewrite" flag in the block pointer
structure, allowing to differentiate physical rewrite (when the
block is actually reallocated at the physical birth time) from
the device reval case (when the logical birth time is used).
The new functionality is not used at this point, and the only
expected change is that error log is now kept in terms of physical
physical birth times, rather than logical, since if a block with
logged error was somehow rewritten, then the previous error does
not matter any more.
This change also introduces a new TRAVERSE_LOGICAL flag to the
traverse code, allowing zfs send, redact and diff to work in
context of logical birth times, ignoring physical-only rewrites.
It also changes nothing at this point due to lack of those writes,
but they will come in a following patch.
Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes#17565
This feature enables tracking of when TXGs are committed to disk,
providing an estimated timestamp for each TXG.
With this information, it becomes possible to perform scrubs based
on specific date ranges, improving the granularity of data
management and recovery operations.
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Mariusz Zaborski <mariusz.zaborski@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes#16853
The structure of zfs_putpage() and its callers is tricky to follow.
There's a lot more we could do to improve it, but at least now we have
some description of one of the trickier bits.
Writing this exposed a very subtle bug: most async pages pushed out
through zpl_putpages() would go to the ZIL with commit=false, which can
yield a less-efficient write policy. So this commit updates that too.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17584
For async page writeback, we do not need to wait for the page to be on
disk before returning to the caller; it's enough that the data from the
dirty page be on the DMU and in the in-memory ZIL, just like any other
write.
So, if this is not a syncing write, don't add a callback to the itx, and
instead just unlock the page immediately.
(This is effectively the same concept used for FreeBSD in d323fbf49c).
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17584Closes#14290
All this machinery is there to try to understand when there an async
writeback waiting to complete because the intent log callbacks are still
outstanding, and force them with a timely zil_commit(). The next commit
fixes this properly, so there's no need for all this extra housekeeping.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17584
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Closes#17587
Now zvol minors creation logic is passed thru spa_zvol_taskq, like it
is doing for remove/rename zvol minors functions. Appropriate
zvol minors creation functions are refactored:
- The zvol_create_minor()/zvol_minors_create_recursive() were removed.
- The single zvol_create_minors() is added instead.
Also, it become possible to collect zvol minors subtasks status, to
detect, if some zvol minor subtask is failed in the subtasks chain.
The appropriate message is reported to zfs_dbgmsg buffer in this case.
Sponsored-by: vStack, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes#17575
Avoid calling dbuf_evict_one() from memory reclaim contexts (e.g. Linux
kswapd, FreeBSD pagedaemon). This prevents deadlock caused by reclaim
threads waiting for the dbuf hash lock in the call sequence:
dbuf_evict_one -> dbuf_destroy -> arc_buf_destroy
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Kaitlin Hoang <kthoang@amazon.com>
Closes#17561
Implement zvol_alloc() function on FreeBSD side to increase code base
compatibility with Linux. Also, fix issue with late returning in case
if volmode=none.
Sponsored-by: vStack, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes#17482
Sponsored-by: Klara, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Igor Ostapenko <igor.ostapenko@klarasystems.com>
Closes#17581
FreeBSD commit 2ec2ba7e232d added the Solaris style syscall interface
for extended attributes. This patch wires this interface into the
FreeBSD ZFS port, since this style of extended attributes is supported
by OpenZFS internally when the "xattr" property is set to "dir".
Some specific changes:
LOOKUP_NAMED_ATTR is defined to indicate the need to set V_NAMEDATTR
for calls to zfs_zaccess().
V_NAMEDATTR indicates that the access checking does need to be done
for FreeBSD.
The access checking code for extended attributes was copy/pasted from
the Linux port into zfs_zaccess() in the FreeBSD port.
Most of the changes are in zfs_freebsd_lookup() and
zfs_freebsd_create().
The semantics of these functions should remain unchanged unless named
attributes are being manipulated.
All the code changes are enabled for __FreeBSD_version 1500040 and
newer.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
Closes#17540
Return from zvol_os_create_minor() function immediately after
dsl_prop_get_integer() call if volmode property value is set to
'none', like it is doing on Linux side.
Sponsored-by: vStack, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Fedor Uporov <fuporov.vstack@gmail.com>
Closes#17405
During original block cloning implementation a mistake was made,
making BRT ZAP entries an array of 8 1-byte entries instead of 1
entry of 8 bytes. This makes the pools non-endian-safe.
This commit introduces a new read-compatible pool feature
"com.truenas:block_cloning_endian", fixing the endianness issue
for new pools while maintaining compatibility with existing ones.
The feature is automatically activated when creating the first BRT
ZAP (ensuring we don't activate it on pools that already have BRT
entries in the old format). When active, BRT entries are stored
as single 8-byte values.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <alexander.motin@TrueNAS.com>
Closes#17572
While booting, only the needed 256KiB benchmarks are done now.
The delay for checking all checksums occurs when requested via:
- Linux: cat /proc/spl/kstat/zfs/chksum_bench
- FreeBSD: sysctl kstat.zfs.misc.chksum_bench
Reported by: Lahiru Gunathilake <gunathilakebllg@gmail.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Tino Reichardt <milky-zfs@mcmilk.de>
Co-authored-by: Colin Percival <cperciva@tarsnap.com>
Closes#17563Closes#17560
When we're passivating a metaslab group we start by passivating the
metaslabs that have been activated for each of the allocators. To do
that, we need to provide a weight. However, currently this erroneously
always uses a segment-based weight, even if segment-based weighting is
disabled.
Use the normal weight function, which will decide which type of weight
to use.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes#17566
Update the default FICLONE and FICLONERANGE ioctl behavior to wait
on dirty blocks. While this does remove some control from the
application, in practice ZFS is better positioned to the optimial
thing and immediately force a TXG sync.
Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Alexander Motin <alexander.motin@TrueNAS.com>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#17455
The linux kernel modules haven't been building successfully when the
build occurs in a separate directory than the source code, which is a
common build pattern in Linux. Was not able to determine the root cause,
but the %.o targets in subdirectories are no longer being matched by the
pattern targets in the Linux Kbuild system. This change fixes the issue
by dynamically creating the missing ones inside our Kbuild.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Coleman Kane <ckane@colemankane.org>
Closes#17517
These are all cases where we initialise or update a variable, and then
never use it. None of them particularly matter, as the compiler should
optimise them all away during dead store elimination, but some static
analysers complain about them and they are extra work for casual readers
to follow, so worth removing.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17551
It would have been optimised away anyway so it doesn't matter, but it
does make things a little tougher to read.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17551
They aren't used outside these very small blocks, and their initial
values are never used at all.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17551
Seems like we haven't set it since the SPL was pulled into the main ZFS
tree. In removing the define, I've taken the 64-bit version (ie the one
that _hasn't_ been running since back then) because it looks like its
closer to the intended width by the way its used.
Since the macros ar eno longer needed as a selector, pull those too.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17551
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17551
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Sponsored-by: https://despairlabs.com/sponsor/Closes#17551
Linux kernel shrinker in the context of null/root memcg does not scan
dentry and inode caches added by a task running in non-root memcg. For
ZFS this means that dnode cache routinely overflows, evicting valuable
meta/data and putting additional memory pressure on the system.
This patch restores zfs_prune_aliases as fallback when the kernel
shrinker does nothing, enabling zfs to actually free dnodes. Moreover,
it (indirectly) calls arc_evict when dnode_size > dnode_limit.
Reviewed-by: Rob Norris <robn@despairlabs.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Gionatan Danti <g.danti@assyoma.it>
Closes#17487Closes#17542
Before this change ZIL blocks were allocated only from normal or
SLOG vdevs. In typical situation when special vdevs are SSDs and
normal are HDDs it could cause weird inversions when data blocks
are written to SSDs, but ZIL referencing them to HDDs.
This change assumes that special vdevs typically have much better
(or at least not worse) latency than normal, and so in absence of
SLOGs should store ZIL blocks. It means similar to normal vdevs
introduction of special embedded log allocation class and updating
the allocation fallback order to: SLOG -> special embedded log ->
special -> normal embedded log -> normal.
The code tries to guess whether data block is going to be written
to normal or special vdev (it can not be done precisely before
compression) and prefer indirect writes for blocks written to a
special vdev to avoid double-write. For blocks that are going to
be written to normal vdev, special vdev by default plays as SLOG,
reducing write latency by the cost of higher special vdev wear,
but it is tunable via module parameter.
This should allow HDD pools with decent SSD as special vdev to
work under synchronous workloads without requiring additional
SLOG SSD, impractical in many scenarios.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Reviewed-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes#17505
On Linux, when doing path lookup with LOOKUP_RCU, dentry and inode can
be dereferenced without refcounts and locks. For this reason, dentry and
inode must only be freed after RCU grace period.
However, zfs currently frees inode in zfs_inode_destroy synchronously
and we can't use GPL-only call_rcu() in zfs directly. Fortunately, on
Linux 5.2 and after, if we define sops->free_inode(), the kernel will do
call_rcu() for us.
This issue may be triggered more easily with init_on_free=1 boot
parameter:
BUG: kernel NULL pointer dereference, address: 0000000000000020
RIP: 0010:selinux_inode_permission+0x10e/0x1c0
Call Trace:
? show_trace_log_lvl+0x1be/0x2d9
? show_trace_log_lvl+0x1be/0x2d9
? show_trace_log_lvl+0x1be/0x2d9
? security_inode_permission+0x37/0x60
? __die_body.cold+0x8/0xd
? no_context+0x113/0x220
? exc_page_fault+0x6d/0x130
? asm_exc_page_fault+0x1e/0x30
? selinux_inode_permission+0x10e/0x1c0
security_inode_permission+0x37/0x60
link_path_walk.part.0.constprop.0+0xb5/0x360
? path_init+0x27d/0x3c0
path_lookupat+0x3e/0x1a0
filename_lookup+0xc0/0x1d0
? __check_object_size.part.0+0x123/0x150
? strncpy_from_user+0x4e/0x130
? getname_flags.part.0+0x4b/0x1c0
vfs_statx+0x72/0x120
? ioctl_has_perm.constprop.0.isra.0+0xbd/0x120
__do_sys_newlstat+0x39/0x70
? __x64_sys_ioctl+0x8d/0xd0
do_syscall_64+0x30/0x40
entry_SYSCALL_64_after_hwframe+0x62/0xc7
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Chunwei Chen <david.chen@nutanix.com>
Co-authored-by: Chunwei Chen <david.chen@nutanix.com>
Closes#17546
Under parallel workloads ZIL may delay writes of open LWBs that
are not full enough. On suspend we do not expect anything new to
appear since zil_get_commit_list() will not let it pass, only
returning TXG number to wait for. But I suspect that waiting for
the TXG commit without having the last LWB issued may not wait for
its completion, resulting in panic described in #17509.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes#17521
Currently, after a failed allocation, the metaslab code recalculates the
weight for a metaslab. However, for space-based metaslabs, it uses the
maximum free segment size instead of the normal weighting
algorithm. This is presumably because the normal metaslab weight is
(roughly) intended to estimate the size of the largest free segment, but
it doesn't do that reliably at most fragmentation levels. This means
that recalculated metaslabs are forced to a weight that isn't really
using the same units as the rest of them, resulting in undesirable
behaviors. We switch this to use the normal space-weighting function.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Sponsored-by: Wasabi Technology, Inc.
Sponsored-by: Klara, Inc.
Closes#17531
In syncing mode, zfs_putpages() would put the entire range of pages onto
the ZIL, then return VM_PAGER_OK for each page to the kernel. However,
an associated zil_commit() or txg sync had not happened at this point,
so the write may not actually be on disk.
So, we rework that case to use a ZIL commit callback, and do the
post-write work of undirtying the page and signaling completion there.
We return VM_PAGER_PEND to the kernel instead so it knows that we will
take care of it.
The original version of this (238eab7dc1) copied the Linux model and did
the cleanup in a ZIL callback for both async and sync. This was a
mistake, as FreeBSD does not have a separate "busy for writeback" flag
like Linux which keeps the page usable. The full sbusy flag locks the
entire page out until the itx callback fires, which for async is after
txg sync, which could be literal seconds in the future.
For the async case, the data is already on the DMU and the in-memory
ZIL, which is sufficient for async writeback, so the old method of
logging it without a callback, undirtying the page and returning is more
than sufficient and reclaims that lost performance.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Mark Johnston <markj@FreeBSD.org>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17533
This causes async putpages to leave the pages sbusied for a long time,
which hurts concurrency. Revert for now until we have a better
approach.
This reverts commit 238eab7dc1.
Reported by: Ihor Antonov <ngor@hugpoint.tech>
Discussed with: Rob Norris <rob.norris@klarasystems.com>
References: freebsd/freebsd-src@738a9a7
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Mark Johnston <markj@FreeBSD.org>
Ported-by: Rob Norris <rob.norris@klarasystems.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17533
Older kernel versions run make outside of the build directory. This
works since all paths are absolute. Relative paths will fail in such
a scenario.
Use an absolute path to the objtool wrapper as well, since the
relative path breaks the build on older kernels.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Attila Fülöp <attila@fueloep.org>
Closes#17541
ZFS gang block headers are currently fixed at 512 bytes. This is
increasingly wasteful in the era of larger disk sector sizes. This PR
allows any size allocation to work as a gang header. It also contains
supporting changes to ZDB to make gang headers easier to work with.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes#17004
In FreeBSD there is now a pathconf name _PC_HAS_HIDDENSYSTEM.
This patch adds support for it to OpenZFS.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
Closes#17518
They only need a couple of fields, and passing the whole thing just
invites fiddling around inside it, like modifying flags, which then
makes it much harder to understand the zio state from inside zio.c.
We move the flag update to just after a successful throttle in zio.c.
Rename ZIO_FLAG_IO_ALLOCATING to ZIO_FLAG_ALLOC_THROTTLED
Better describes what it means, and makes it look less like
IO_IS_ALLOCATING, which means something different.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17508
We're not supposed to modify someone else's io_flags, so we need another
way to propagate DIO_CHKSUM_ERR.
If we squint, we can see that io_reexecute is really just recording
exceptional events that a parent (or its parents) will need to do
something about. It just happens that the only things we've had
historically are two forms of reexecution: now or later (suspend).
So, rename it to io_post, as in, post-IO info/events/actions. And now we
have a few spare bits for other conditions.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17507
special_small_blocks is applied to blocks after compression, so it
makes no sense to demand its values to be power of 2. At most
they could be multiple of 512, but that would still buy us nothing,
so lets allow them be any within SPA_MAXBLOCKSIZE.
Also special_small_blocks does not really need to depend on the
set recordsize, enabled pool features or presence of special vdev.
At worst in any of those cases it will just do nothing, so we
should not complicate users lives by artificial limitations.
While there, polish comments for recordsize and volblocksize.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes#17497
This allows to change the meaning of priority differences in FreeBSD
without requiring code changes in ZFS.
This upstreams commit fd141584cf89d7d2 from FreeBSD src.
Sponsored-by: The FreeBSD Foundation
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Olivier Certner <olce@FreeBSD.org>
Closes#17489
When an allocation is happening on a raidz vdev, the number of sectors
allocated is rounded up to a multiple of nparity + 1. If this results in
the allocation spilling into an extra row, then the corresponding call
to vdev_raidz_asize_to_psize will incorrectly assume that parity sectors
were allocated for that spilled row, even though no data is stored
there.
If we determine that happened, we need to subtract out those extra
sectors before performing the rest of the capacity calculation.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Rob Norris <rob.norris@klarasystems.com>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Paul Dagnelie <paul.dagnelie@klarasystems.com>
Closes#17490
Since 246e588, gang blocks written to raidz vdevs will write past the
end of their allocation, corrupting themselves, other data, or both.
The reason is simple - when allocating the gang children, we call
vdev_psize_to_asize() to find out how much data we should load into the
allocation we just did. vdev_raidz_asize_to_psize() had a bug; it
computed the psize, but returned the original asize. The raidz layer
dutifully writes that much out, into space beyond the end of the
allocation.
If there's existing data there, it gets overwritten, causing checksum
errors when that data is read. Even there's not data there (unlikely,
given that gang blocks are in play at all), that area is not considered
allocated, so can be allocated and overwritten later.
The fix is simple: return the psize we just computed.
Sponsored-by: Klara, Inc.
Sponsored-by: Wasabi Technology, Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Allan Jude <allan@klarasystems.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes#17488
