Commit Graph

9139 Commits

Author SHA1 Message Date
Umer Saleem dbda45160f
Test LWB buffer overflow for block cloning
PR#15634 removes 128K into 2x68K LWB split optimization, since it
was found to cause LWB buffer overflow while trying to write 128KB
TX_CLONE_RANGE record with 1022 block pointers into 68KB buffer,
with multiple VDEVs ZIL.

This commit adds a test for this particular scenario by writing
maximum sizes TX_CLONE_RANE record with 1022 block pointers into
68KB buffer, with two SLOG devices.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by:  Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Umer Saleem <usaleem@ixsystems.com>
Closes #15672
2023-12-15 14:18:27 -08:00
Alexander Motin 9b1677fb5a
dmu: Allow buffer fills to fail
When ZFS overwrites a whole block, it does not bother to read the
old content from disk. It is a good optimization, but if the buffer
fill fails due to page fault or something else, the buffer ends up
corrupted, neither keeping old content, nor getting the new one.

On FreeBSD this is additionally complicated by page faults being
blocked by VFS layer, always returning EFAULT on attempt to write
from mmap()'ed but not yet cached address range.  Normally it is
not a big problem, since after original failure VFS will retry the
write after reading the required data.  The problem becomes worse
in specific case when somebody tries to write into a file its own
mmap()'ed content from the same location.  In that situation the
only copy of the data is getting corrupted on the page fault and
the following retries only fixate the status quo.  Block cloning
makes this issue easier to reproduce, since it does not read the
old data, unlike traditional file copy, that may work by chance.

This patch provides the fill status to dmu_buf_fill_done(), that
in case of error can destroy the corrupted buffer as if no write
happened.  One more complication in case of block cloning is that
if error is possible during fill, dmu_buf_will_fill() must read
the data via fall-back to dmu_buf_will_dirty().  It is required
to allow in case of error restoring the buffer to a state after
the cloning, not not before it, that would happen if we just call
dbuf_undirty().

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #15665
2023-12-15 09:51:41 -08:00
Alexander Motin 86e115e21e
dbuf: Set dr_data when unoverriding after clone
Block cloning normally creates dirty record without dr_data.  But if
the block is read after cloning, it is moved into DB_CACHED state and
receives the data buffer.  If after that we call dbuf_unoverride()
to convert the dirty record into normal write, we should give it the
data buffer from dbuf and release one.

Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #15654
Closes #15656
2023-12-12 12:59:24 -08:00
Alexander Motin 86063d9031
dbuf: Handle arcbuf assignment after block cloning
In some cases dbuf_assign_arcbuf() may be called on a block that
was recently cloned.  If it happened in current TXG we must undo
the block cloning first, since the only one dirty record per TXG
can't and shouldn't mean both cloning and overwrite same time.

Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15653
2023-12-12 12:53:59 -08:00
Brian Behlendorf f4b97c1e00
ZTS: Update raidz_expand_005_pos.ksh
Align the raidz_expand_005_pos test with the raidz_expand_004_pos test
and only verify no errors were reported.  Allow scrub repair IO.

Reviewed-by: Don Brady <don.brady@klarasystems.com>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #15663
2023-12-12 09:56:19 -08:00
Chunwei Chen a9b937e066
For db_marker inherit the db pointer for AVL comparision.
While evicting dbufs of a dnode, a marker node is added to the AVL.
The marker node should be inserted in AVL tree ahead of the dbuf its
trying to delete. The blkid and level is used to ensure this. However,
this could go wrong there's another dbufs with the same blkid and level
in DB_EVICTING state but not yet removed from AVL tree. dbuf_compare()
could fail to give the right location or could cause confusion and
trigger ASSERTs.

To ensure that the marker is inserted before the deleting dbuf, use
the pointer value of the original dbuf for comparision.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Sanjeev Bagewadi <sanjeev.bagewadi@nutanix.com>
Signed-off-by: Chunwei Chen <david.chen@nutanix.com>
Closes #12482 
Closes #15643
2023-12-11 14:42:06 -08:00
Tony Hutter b1748eaee0
ZTS: Add dirty dnode stress test
Add a test for the dirty dnode SEEK_HOLE/SEEK_DATA bug described in
https://github.com/openzfs/zfs/issues/15526

The bug was fixed in https://github.com/openzfs/zfs/pull/15571 and
was backported to 2.2.2 and 2.1.14.  This test case is just to
make sure it does not come back.

seekflood.c originally written by Rob Norris.

Reviewed-by: Graham Perrin <grahamperrin@freebsd.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15608
2023-12-11 09:59:59 -08:00
Brian Behlendorf 9f6ad4dcb6
ZTS: Add zpool_import_status.ksh to Makefile.am
The zpool_import_status.ksh test case was not being run because
it was not included in the Makefile.am.

Reviewed-by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #15655
2023-12-11 09:40:32 -08:00
Brian Behlendorf 8ad73bf449
ZTS: Disable io_uring test on CentOS 9
The io_uring test fails on CentOS 9 with the following fio error.
Disable the test for the benefit of the CI until this can be fully
investigated.  This basic test passes as expected on newer kernels.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #15636
2023-12-08 17:31:31 -08:00
Alexander Motin e53e60c0bd
DMU: Fix lock leak on dbuf_hold() error
dmu_assign_arcbuf_by_dnode() should drop dn_struct_rwlock lock in
case dbuf_hold() failed.  I don't have reproduction for this, but
it looks inconsistent with dmu_buf_hold_noread_by_dnode() and co.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by: iXsystems, Inc.
Closes #15644
2023-12-08 16:43:39 -08:00
Ameer Hamza 2ebb9a4811 ZTS: Add test cases for block cloning replay
Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by:  Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #15614
2023-12-08 16:39:14 -08:00
Ameer Hamza 5ff43969e7 ZTS: block_cloning: Use numeric sort for get_same_blocks
Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by:  Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Ameer Hamza <ahamza@ixsystems.com>
Closes #15614
2023-12-08 16:38:45 -08:00
Mauricio Faria de Oliveira 3c7650491b
zed: fix typo in variable ZED_POWER_OFF_ENCLO*US*RE_SLOT_ON_FAULT
Replace ENCLO_US_RE with ENCLO_SU_RE in the name of the variable.

Note this changes the user-visible string in zed.rc, thus might
break current users with the wrong string, but it's ~2 months
since zfs-2.2.0 tag is out, thus should not be widespread yet.

Mechanical change:

    $ grep -rl ZED_POWER_OFF_ENCLOUSRE_SLOT_ON_FAULT
    cmd/zed/zed.d/zed.rc
    cmd/zed/zed.d/statechange-slot_off.sh

    $ sed -i 's/ZED_POWER_OFF_ENCLOUSRE_SLOT_ON_FAULT/<linebreak>
                ZED_POWER_OFF_ENCLOSURE_SLOT_ON_FAULT/g' \
      cmd/zed/zed.d/zed.rc \
      cmd/zed/zed.d/statechange-slot_off.sh

    $ grep -rl ZED_POWER_OFF_ENCLOUSRE_SLOT_ON_FAULT
    $

Fixes 11fbcacf37
("zed: Add zedlet to power off slot when drive is faulted")

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Mauricio Faria de Oliveira <mfo@canonical.com>
Closes #15651
2023-12-08 16:32:35 -08:00
Rob N 450f2d0b08
import: ignore return on hostid lookups
Just silencing a warning. Its totally fine for a hostid to not be there.

Reported-by: Coverity (CID-1573336)

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #15650
2023-12-07 08:41:54 -08:00
Rob N f0cb6482e1
setproctitle: fix ununitialised variable
Reported-by: Coverity (CID-1573333)

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #15649
2023-12-07 08:23:16 -08:00
Rob N 4836d293c0
zfs_refcount_remove: explictly ignore returns
Coverity noticed that sometimes we ignore the return, and sometimes we
don't. Its not wrong, and I like consistent style, so here we are.

Reported-by: Coverity (CID-1564584)
Reported-by: Coverity (CID-1564585)
Reported-by: Coverity (CID-1564586)
Reported-by: Coverity (CID-1564587)
Reported-by: Coverity (CID-1564588)

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #15647
2023-12-07 08:21:38 -08:00
Mark Johnston 11656234b5
FreeBSD: Ensure that zfs_getattr() initializes the va_rdev field
Otherwise the field is left uninitialized, leading to a possible kernel
memory disclosure to userspace or to the network.  Use the same
initialization value we use in zfsctl_common_getattr().

Reported-by: KMSAN
Sponsored-by: The FreeBSD Foundation
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ed Maste <emaste@FreeBSD.org>
Signed-off-by: Mark Johnston <markj@FreeBSD.org>
Closes #15639
2023-12-07 08:20:11 -08:00
Alexander Motin 9743d09635
BRT: Limit brt_vdev_dump() to only one vdev
Without this patch on pool of 60 vdevs with ZFS_DEBUG enabled clone
takes much more time than copy, while heavily trashing dbgmsg for
no good reason, repeatedly dumping all vdevs BRTs again and again,
even unmodified ones.

I am generally not sure this dumping is not excessive, but decided
to keep it for now, just restricting its scope to more reasonable.

Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15625
2023-12-06 15:37:27 -08:00
Alexander Motin 2aa3a482ab
ZIL: Remove 128K into 2x68K LWB split optimization
To improve 128KB block write performance in case of multiple VDEVs
ZIL used to spit those writes into two 64KB ones.  Unfortunately it
was found to cause LWB buffer overflow, trying to write maximum-
sizes 128KB TX_CLONE_RANGE record with 1022 block pointers into
68KB buffer, since unlike TX_WRITE ZIL code can't split it.

This is a minimally-invasive temporary block cloning fix until the
following more invasive prediction code refactoring.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ameer Hamza <ahamza@ixsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15634
2023-12-06 15:02:05 -08:00
Alexander Motin f9765b182e
zdb: Dump encrypted write and clone ZIL records
Block pointers are not encrypted in TX_WRITE and TX_CLONE_RANGE
records, so we can dump them, that may be useful for debugging.

Related to #15543.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15629
2023-12-06 12:39:12 -08:00
Shengqi Chen 86239a5b9c
compact: workaround for GPL-only symbols on riscv from Linux 6.2
Since Linux 6.2, the implementation of flush_dcache_page on riscv
references GPL-only symbol `PageHuge`, breaking the build of zfs.

This patch uses existing mechanism to override flush_dcache_page,
removing the call to `PageHuge`. According to comments in kernel,
it is only used to do some check against HugeTLB pages, which only
exist in userspace. ZFS uses flush_dcache_page only on kernel pages,
thus this patch will not introduce any behaviour change.

See also: torvalds/linux@d33deda, openzfs/zfs@589f59b

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #14974 
Closes #15627
2023-12-06 12:37:50 -08:00
Don Brady 687e4d7f9c
Extend import_progress kstat with a notes field
Detail the import progress of log spacemaps as they can take a very
long time.  Also grab the spa_note() messages to, as they provide
insight into what is happening

Sponsored-By: OpenDrives Inc.
Sponsored-By: Klara Inc.
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Don Brady <don.brady@klarasystems.com>
Co-authored-by: Allan Jude <allan@klarasystems.com>
Closes #15539
2023-12-05 14:27:56 -08:00
Shengqi Chen 727497ccdf
module/icp/asm-arm/sha2: enable non-SIMD asm kernels on armv5/6
My merged pull request #15557 fixes compilation of sha2 kernels on arm
v5/6. However, the compiler guards only allows sha256/512_armv7_impl to
be used when __ARM_ARCH > 6. This patch enables these ASM kernels on all
arm architectures. Some compiler guards are adjusted accordingly to
avoid the unnecessary compilation of SIMD (e.g., neon, armv8ce) kernels
on old architectures.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #15623
2023-12-05 12:01:09 -08:00
Rob N 5f2700eee5
zpool: flush output before sleeping
Several zpool commands (status, list, iostat) have modes that present
some information, sleep a while, present the current state, sleep, etc.
Some of those had ways to invoke them that when piped would appear to do
nothing for a while, because non-terminals are block-buffered, not
line-buffered, by default.  Fix this by forcing a flush before sleeping.

In particular, all of these buffered:
- zpool status <pool> <interval>
- zpool iostat -y<m> <pool> <interval>
- zpool list <pool> <interval>

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #15593
2023-12-05 11:53:14 -08:00
oromenahar c7b6119268
Allow block cloning across encrypted datasets
When two datasets share the same master encryption key, it is safe
to clone encrypted blocks. Currently only snapshots and clones
of a dataset share with it the same encryption key.

Added a test for:
- Clone from encrypted sibling to encrypted sibling with
  non encrypted parent
- Clone from encrypted parent to inherited encrypted child
- Clone from child to sibling with encrypted parent
- Clone from snapshot to the original datasets
- Clone from foreign snapshot to a foreign dataset
- Cloning from non-encrypted to encrypted datasets
- Cloning from encrypted to non-encrypted datasets

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Original-patch-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Signed-off-by: Kay Pedersen <mail@mkwg.de>
Closes #15544
2023-12-05 11:03:48 -08:00
Alexander Motin 55b764e062
ZIL: Do not clone blocks from the future
ZIL claim can not handle block pointers cloned from the future,
since they are not yet allocated at that point.  It may happen
either if the block was just written when it was cloned, or if
the pool was frozen or somehow else rewound on import.

Handle it from two sides: prevent cloning of blocks with physical
birth time from not yet synced or frozen TXG, and abort ZIL claim
if we still detect such blocks due to rewind or something else.

While there, assert that any cloned blocks we claim are really
allocated by calling metaslab_check_free().

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15617
2023-12-05 10:58:11 -08:00
Dex Wood 014265f4e6
Add Ntfy notification support to ZED
This commit adds the zed_notify_ntfy() function and hooks it
into zed_notify(). This will allow ZED to send notifications
to ntfy.sh or a self-hosted Ntfy service, which can be received
on a desktop or mobile device. It is configured with ZED_NTFY_TOPIC,
ZED_NTFY_URL, and ZED_NTFY_ACCESS_TOKEN variables in zed.rc.

Reviewed-by: @classabbyamp 
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Dex Wood <slash2314@gmail.com>
Closes #15584
2023-12-01 15:25:17 -08:00
Alexander Motin bcd83ccd25
ZIL: Remove TX_CLONE_RANGE replay for ZVOLs.
zil_claim_clone_range() takes references on cloned blocks before ZIL
replay.  Later zil_free_clone_range() drops them after replay or on
dataset destroy.  The total balance is neutral.  It means we do not
need to do anything (drop the references) for not implemented yet
TX_CLONE_RANGE replay for ZVOLs.

This is a logical follow up to #15603.

Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15612
2023-12-01 15:23:20 -08:00
Alexander Motin adcea23cb0
ZIO: Add overflow checks for linear buffers
Since we use a limited set of kmem caches, quite often we have unused
memory after the end of the buffer.  Put there up to a 512-byte canary
when built with debug to detect buffer overflows at the free time.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15553
2023-12-01 11:50:10 -08:00
Brooks Davis 3e4bef52b0
Only provide execvpe(3) when needed
Check for the existence of execvpe(3) and only provide the FreeBSD
compat version if required.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Brooks Davis <brooks.davis@sri.com>
Closes #15609
2023-11-30 16:04:18 -08:00
Yuri Pankov 735ba3a7b7
Use uint64_t instead of u_int64_t
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Yuri Pankov <ypankov@tintri.com>
Closes #15610
2023-11-30 10:36:33 -08:00
Alexander Motin a03ebd9bee
ZIL: Call brt_pending_add() replaying TX_CLONE_RANGE
zil_claim_clone_range() takes references on cloned blocks before ZIL
replay.  Later zil_free_clone_range() drops them after replay or on
dataset destroy.  The total balance is neutral.  It means on actual
replay we must take additional references, which would stay in BRT.

Without this blocks could be freed prematurely when either original
file or its clone are destroyed.  I've observed BRT being emptied
and the feature being deactivated after ZIL replay completion, which
should not have happened.  With the patch I see expected stats.

Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rob Norris <robn@despairlabs.com>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15603
2023-11-29 10:51:34 -08:00
Wraithh 8adf2e3066
Fix zoneid when USER_NS is disabled
getzoneid() should return GLOBAL_ZONEID instead of 0 when USER_NS is disabled.

Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ilkka Sovanto <github@ilkka.kapsi.fi>
Closes #15560
2023-11-29 09:55:17 -08:00
VaibhavB 7d68900af3
ZTS: get_persistent_disk_name can return truncated names
Instead of using only the 3rd element return the entire string after 
the split to handle device names with dashes.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Vaibhav Bhanawat <vaibhav.bhanawat@delphix.com>
Closes #15567
2023-11-29 09:34:29 -08:00
Martin Matuška 1c38cdfe98
zdb: fix printf() length for uint64_t devid
Bug introduced in 213d682967.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Warner Losh <imp@FreeBSD.org>
Signed-off-by: Martin Matuska <mm@FreeBSD.org>
Closes #15606
2023-11-29 09:18:30 -08:00
Alexander Motin 2a27fd4111
ZIL: Assert record sizes in different places
This should make sure we have log written without overflows.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15517
2023-11-28 13:35:14 -08:00
Shengqi Chen b94ce4e17d module/icp/asm-arm/sha2: fix compiling on armv5/6
The `adr` insn in neon kernel generates an compiling
error on armv5/6 target. Fix that by using `ldr`.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #15557
2023-11-28 13:26:12 -08:00
Shengqi Chen 4340f69be1 module/icp/asm-arm/sha2: auto detect __ARM_ARCH
This patch uses __ARM_ARCH set by compiler (both
GCC and Clang have this) whenever possible instead
of hardcoding it to 7. This change allows code to
compile on earlier ARM architectures such as armv5te.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Shengqi Chen <harry-chen@outlook.com>
Closes #15557
2023-11-28 13:25:44 -08:00
Jaron Kent-Dobias b3a985fa42
Linux 6.6 compat: fix configure error with clang (#15558)
With Linux v6.6.x and clang 16, a configure step fails on a warning that
later results in an error while building, due to 'ts' being
uninitialized. Add a trivial initialization to silence the warning.

Signed-off-by: Jaron Kent-Dobias <jaron@kent-dobias.com>
Reviewed-by: Tony Hutter <hutter2@llnl.gov>
2023-11-28 11:34:40 -08:00
Rob N 688514e470
dmu_buf_will_clone: fix race in transition back to NOFILL
Previously, dmu_buf_will_clone() would roll back any dirty record, but
would not clean out the modified data nor reset the state before
releasing the lock. That leaves the last-written data in db_data, but
the dbuf in the wrong state.

This is eventually corrected when the dbuf state is made NOFILL, and
dbuf_noread() called (which clears out the old data), but at this point
its too late, because the lock was already dropped with that invalid
state.

Any caller acquiring the lock before the call into
dmu_buf_will_not_fill() can find what appears to be a clean, readable
buffer, and would take the wrong state from it: it should be getting the
data from the cloned block, not from earlier (unwritten) dirty data.

Even after the state was switched to NOFILL, the old data was still not
cleaned out until dbuf_noread(), which is another gap for a caller to
take the lock and read the wrong data.

This commit fixes all this by properly cleaning up the previous state
and then setting the new state before dropping the lock. The
DBUF_VERIFY() calls confirm that the dbuf is in a valid state when the
lock is down.

Sponsored-by: Klara, Inc.
Sponsored-By: OpenDrives Inc.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #15566
Closes #15526
2023-11-28 09:53:04 -08:00
Matthew Ahrens 67894a597f
unnecessary alloc/free in dsl_scan_visitbp()
Clean up code in dsl_scan_visitbp() by removing an unnecessary
alloc/free and `goto`.  This has the side benefit of reducing CPU usage,
which is only really noticeable if we are not doing i/o for the leaf
blocks, like when `zfs_no_scrub_io` is set.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Mark Maybee <mark.maybee@delphix.com>
Reviewed-by: Richard Yao <richard.yao@alumni.stonybrook.edu>
Signed-off-by: Matthew Ahrens <mahrens@delphix.com>
Closes #15549
2023-11-28 09:20:48 -08:00
Rob N 30d581121b
dnode_is_dirty: check dnode and its data for dirtiness
Over its history this the dirty dnode test has been changed between
checking for a dnodes being on `os_dirty_dnodes` (`dn_dirty_link`) and
`dn_dirty_record`.

  de198f2d9 Fix lseek(SEEK_DATA/SEEK_HOLE) mmap consistency
  2531ce372 Revert "Report holes when there are only metadata changes"
  ec4f9b8f3 Report holes when there are only metadata changes
  454365bba Fix dirty check in dmu_offset_next()
  66aca2473 SEEK_HOLE should not block on txg_wait_synced()

Also illumos/illumos-gate@c543ec060d illumos/illumos-gate@2bcf0248e9

It turns out both are actually required.

In the case of appending data to a newly created file, the dnode proper
is dirtied (at least to change the blocksize) and dirty records are
added.  Thus, a single logical operation is represented by separate
dirty indicators, and must not be separated.

The incorrect dirty check becomes a problem when the first block of a
file is being appended to while another process is calling lseek to skip
holes. There is a small window where the dnode part is undirtied while
there are still dirty records. In this case, `lseek(fd, 0, SEEK_DATA)`
would not know that the file is dirty, and would go to
`dnode_next_offset()`. Since the object has no data blocks yet, it
returns `ESRCH`, indicating no data found, which results in `ENXIO`
being returned to `lseek()`'s caller.

Since coreutils 9.2, `cp` performs sparse copies by default, that is, it
uses `SEEK_DATA` and `SEEK_HOLE` against the source file and attempts to
replicate the holes in the target. When it hits the bug, its initial
search for data fails, and it goes on to call `fallocate()` to create a
hole over the entire destination file.

This has come up more recently as users upgrade their systems, getting
OpenZFS 2.2 as well as a newer coreutils. However, this problem has been
reproduced against 2.1, as well as on FreeBSD 13 and 14.

This change simply updates the dirty check to check both types of dirty.
If there's anything dirty at all, we immediately go to the "wait for
sync" stage, It doesn't really matter after that; both changes are on
disk, so the dirty fields should be correct.

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: Rich Ercolani <rincebrain@gmail.com>
Signed-off-by: Rob Norris <rob.norris@klarasystems.com>
Closes #15571 
Closes #15526
2023-11-28 09:07:57 -08:00
rmacklem acb33ee1c1
FreeBSD: Fix ZFS so that snapshots under .zfs/snapshot are NFS visible
Call vfs_exjail_clone() for mounts created under .zfs/snapshot
to fill in the mnt_exjail field for the mount.  If this is not
done, the snapshots under .zfs/snapshot with not be accessible
over NFS.

This version has the argument name in vfs.h fixed to match that
of the name in spl_vfs.c, although it really does not matter.

External-issue: https://reviews.freebsd.org/D42672
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Rick Macklem <rmacklem@uoguelph.ca>
Closes #15563
2023-11-27 16:31:03 -08:00
Akash B c1a47de86f
zdb: Fix zdb '-O|-r' options with -e/exported zpool
zdb with '-e' or exported zpool doesn't work along with
'-O' and '-r' options as we process them before '-e' has
been processed.

Below errors are seen:

~> zdb -e pool-mds65/mdt65 -O oi.9/0x200000009:0x0:0x0
failed to hold dataset 'pool-mds65/mdt65': No such file or directory

~> zdb -e pool-oss0/ost0 -r file1 /tmp/filecopy1 -p.
failed to hold dataset 'pool-oss0/ost0': No such file or directory
zdb: internal error: No such file or directory

We need to make sure to process '-O|-r' options after the
'-e' option has been processed, which imports the pool to
the namespace if it's not in the cachefile.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Akash B <akash-b@hpe.com>
Closes #15532
2023-11-27 13:41:58 -08:00
Rob Norris 213d682967 zdb: show BRT statistics and dump its contents
Same idea as the dedup stats, but for block cloning.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #15541
2023-11-27 13:35:07 -08:00
Rob Norris 803a9c12c9 brt: lift internal definitions into _impl header
So that zdb (and others!) can get at the BRT on-disk structures.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Kay Pedersen <mail@mkwg.de>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rob Norris <robn@despairlabs.com>
Closes #15541
2023-11-27 13:34:43 -08:00
Tony Hutter 3551a32e5e
ZTS: Fix zfs_load-key failures on F39
The zfs_load-key tests were failing on F39 due to their use of the
deprecated ssl.wrap_socket function.  This commit updates the test to
instead use ssl.SSLContext() as described in
https://stackoverflow.com/a/65194957.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tony Hutter <hutter2@llnl.gov>
Closes #15534
Closes #15550
2023-11-27 13:24:37 -08:00
AllKind 95b68eb693
zfs-dkms: fix shell-init error message
If all zfs dkms modules have been removed, a shell-init error message
may appear, because /var/lib/dkms/zfs does no longer exist.
Resolve this by leaving the directory earlier on.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Mart Frauenlob <AllKind@fastest.cc>
Closes #15576
2023-11-27 13:17:48 -08:00
Alexander Motin cf33166336
ZVOL: Minor code cleanup
- Remove zsda_tx field, it is used only once.
 - Remove unneeded string lengths checks, all names are terminated.
 - Replace few explicit MAXNAMELEN usages with sizeof().
 - Change dsname from MAXNAMELEN to ZFS_MAX_DATASET_NAME_LEN, as
expected by dsl_dataset_name().  Both are 256 bytes now, but it is
better to be safe.

This should have no functional difference.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by:	Alexander Motin <mav@FreeBSD.org>
Sponsored by:	iXsystems, Inc.
Closes #15535
2023-11-27 13:16:59 -08:00
Alan Somers 126efb5889
FreeBSD: Fix the build on FreeBSD 12
It was broken for several reasons:
* VOP_UNLOCK lost an argument in 13.0.  So OpenZFS should be using
  VOP_UNLOCK1, but a few direct calls to VOP_UNLOCK snuck in.
* The location of the zlib header moved in 13.0 and 12.1.  We can drop
  support for building on 12.0, which is EoL.
* knlist_init lost an argument in 13.0.  OpenZFS change 9d0887402b
  assumed 13.0 or later.
* FreeBSD 13.0 added copy_file_range, and OpenZFS change 67a1b03791
  assumed 13.0 or later.

Sponsored-by: Axcient
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Alan Somers <asomers@gmail.com>
Closes #15551
2023-11-27 12:58:03 -08:00