Commit Graph

7830 Commits

Author SHA1 Message Date
наб 5a142533f8
udev: zvol_id: simplify/modernise
zero-alloc, sensibler errors, don't close (or free) before exit.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13337
2022-05-11 10:58:19 -07:00
наб 1f5bc12893 ztest: O_CLOEXEC ztest_fd_rand
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13411
2022-05-11 10:33:12 -07:00
наб 888914486e ztest: take -B ./path/to/ztest, LD_LIBRARY_PATH=./path/lib:$L_L_P
This changes the behaviour of -B from the illumos one which would,
in the example in the manual, take just ./chroots/lenny;
this, however, is more versatile, and scales much better for systems
with ZFS in /usr/local, for example

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13411
Closes #1770
2022-05-11 10:33:12 -07:00
наб 951a3889d1 tests: many_fds: simplify, modernise
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13411
2022-05-11 10:33:12 -07:00
наб 510ee280c0 Remove enable_extended_FILE_stdio()
Even on Illumos it's only available in the 32-bit programming
environment, and, quoth enable_extended_FILE_stdio(3C):
> Historically, 32-bit Solaris applications have been limited to using
> only the file descriptors 0 through 255 with the standard I/O
> functions (see stdio(3C)) in the C library. The extended FILE
> facility allows well-behaved 32-bit applications to use any
> valid file descriptor with the standard I/O functions.
where "well-behaved" means that it
> does not directly access any fields in the FILE structure pointed
> to by the FILE pointer associated with any standard I/O stream,

And the stdio/flush.c implementation reads:
  /*
   * if this is not an internal extended FILE then check
   * if _file is being changed from underneath us.
   * It should not be because if
   * it is then then we lose our ability to guard against
   * silent data corruption.
   */
  if (!iop->__xf_nocheck && bad_fd > -1 && iop->_magic != bad_fd) {
      (void) fprintf(stderr,
          "Application violated extended FILE safety mechanism.\n"
          "Please read the man page for extendedFILE.\nAborting\n");
      abort();
  }

This appears to be an insane workaround for broken implementation with
exposed FILE internals and _file being an u8, both only on non-LP64;
it's shimmed out on all LP64 targets in Illumos,
and we shim it out as well: just get rid of it

This appears to've been originally fixed in illumos-gate
a5f69788de7ac07553de47f7fec8c05a9a94c105 ("PSARC 2006/162 Extended FILE
space for 32-bit Solaris processes", "1085341 32-bit stdio routines
should support file descriptors >255"), which also bears extendedFILE
and enable_extended_FILE_stdio(3C):
  -       unsigned char   _file;  /* UNIX System file descriptor */
  +       unsigned char   _magic; /* Old home of the file descriptor */
  +                               /* Only fileno(3C) can retrieve the
  				value now */
and
  +/*
  + * Macros to aid the extended fd FILE work.
  + * This helps isolate the changes to only the 32-bit code
  + * since 64-bit Solaris is not affected by this.
  + */
  +#ifdef  _LP64
  +#define        GET_FD(iop)             ((iop)->_file)
  +#define        SET_FILE(iop, fd)       ((iop)->_file = (fd))
  +#else
  +#define        GET_FD(iop)             \
  +               (((iop)->__extendedfd) ? _file_get(iop) : (iop)->_magic)
  +#define        SET_FILE(iop, fd)       (iop)->_magic = (fd); (iop)->__extendedfd = 0
  +#endif

Also remove the 1k setrlimit(NOFILE) calls: that's the default on Linux,
with 64k on Illumos and 171k on FreeBSD

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13411
2022-05-11 10:33:12 -07:00
szubersk e0911f7b7f autoconf: Fail when __copy_from_user_inatomic is a non-GPL symbol
A followup to 849c14e048
Fix https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1009242

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: szubersk <szuberskidamian@gmail.com>
Closes #13389
2022-05-11 10:32:51 -07:00
Brian Atkinson f567d67fda
Adding ZTS test for O_APPEND
Commit 63b18e4 fixed an issue in zpl_aio_write() to make sure that
kiocb->ki_pos was updated correctly when opening a file with O_APPEND.
Adding a test to verify O_APPEND functionality with lseek can make
sure that all other distros/kernel versions also have the correct
behavior.

Also moved the threadappends_001_pos test into this append test
directory in functional ZTS directory. This way the two append tests
are together for organization purposes.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Brian Atkinson <batkinson@lanl.gov>
Closes #13424
2022-05-11 08:38:16 -07:00
наб 3ed04d66aa Remove constrained path on clean
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:21:13 -07:00
наб e8ca724393 ztest: fix in-tree detection for automatic zdb path
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:21:09 -07:00
наб c6a5d7d997 ztest: use $ZDB instead of $ZDB_PATH for zdb
Which actually gets zdb as set in common.sh

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:21:04 -07:00
наб 1a58941275 scripts: zpool.sh: cleanup
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:21:00 -07:00
наб c982359460 cppcheck: explicitly exclude kernel code from userspace checks
Thus extracting the final shred of utility

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:55 -07:00
наб c1851bf081 Makefile: respect V=1 for checks
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:51 -07:00
наб 779ac93e96 autogen.sh: paper over automake <1.14's lack of %reldir% support
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:46 -07:00
наб 612b8dff5b contrib: bash_completion.d: install, fix dist
dist diff:
  -zfs-2.1.99/contrib/bash_completion.d/zfs

install diff:
  +destdir/usr/local/etc/bash_completion.d
  +destdir/usr/local/etc/bash_completion.d/zfs

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:40 -07:00
наб 0a9aaa7f0c cmd: move single-file binaries up, extract udev programs to udev/
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:34 -07:00
наб eaf94bda6c Replace config/config.awk with simple sed invocation
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:28 -07:00
наб ea04cc4a22 autoconf: use include directives instead of recursing down test data
We drop /multiple/ seconds off the generation, a dozen off a clean
rebuild, 185 files, and trivialise the distribution,
which can now be trivially generated via the provided snippets

Dist diff:
  -zfs-2.1.99/tests/zfs-tests/tests/functional/pam/utilities.kshlib
  +zfs-2.1.99/tests/zfs-tests/tests/functional/pam/utilities.kshlib.in

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:19 -07:00
наб 0425d58852 autoconf: use include directives instead of recursing down tests (mostly)
Only down to tests/zfs-tests/tests, but pull out C programs into the
main Makefile ‒ this means we get correct dependency tracking for all
programs (and parallelise across them)

dist diff:
  -zfs-2.1.99/tests/zfs-tests/tests/stress/
  -zfs-2.1.99/tests/zfs-tests/tests/stress/Makefile.am
  -zfs-2.1.99/tests/zfs-tests/tests/stress/Makefile.in

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:20:09 -07:00
наб 48f4379974 autoconf: use include directives instead of recursing down etc
dist diff:
  -zfs-2.1.99/etc/systemd/system/50-zfs.preset.in
  +zfs-2.1.99/etc/systemd/system/50-zfs.preset

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:58 -07:00
наб 50d2c9e4fd autoconf: use include directives instead of recursing down contrib
Also make the pyzfs build actually out-of-tree and quiet by default

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Co-authored-by: Rapptz <rapptz@gmail.com>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:44 -07:00
наб 674a9f3727 autoconf: use include directives instead of recursing down udev
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:36 -07:00
наб 2820719800 autoconf: use include directives instead of recursing down rpm
Also simplify .gitignore

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:25 -07:00
наб 93a8c85e7b Move test-runner.1 into top-level man/
dist delta:
  +zfs-2.1.99/man/man1/test-runner.1
  -zfs-2.1.99/tests/test-runner/man/
  -zfs-2.1.99/tests/test-runner/man/test-runner.1

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:18 -07:00
наб 0f6c4fd00e autoconf: use include directives instead of recursing down man
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:10 -07:00
наб 0a8b1fc625 autoconf: use include directives instead of recursing down scripts
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:19:02 -07:00
наб 09a7ad38a5 autoconf: single-step includes
Still descend, but only once: we get a lot of mileage out of nodist_

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:18:51 -07:00
наб 5cdca5b1da autoconf: use include directives instead of recursing down cmd
No installation diff, dist lost
  -zfs-2.1.99/cmd/fsck_zfs/fsck.zfs
which was distributed erroneously, since it's generated

Also clean gitrev on clean

Also add -e 'any possible bashisms' to default checkbashisms flags,
and fully parallelise it and shellcheck, and it works out-of-tree, too

Also align the Release in the dist META file correctly

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:18:38 -07:00
наб 3ff81c4601 cmd: zvol_id: don't build with -fno-stack-protector anymore
#569 was opened in 2012 and closed in 2015;
if the issue was still there we'd presumably've seen it?

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:18:29 -07:00
наб c8970f52ed autoconf: use include directives instead of recursing down lib
As a bonus, this also adds zfs-mount-generator (previously undescended
down) and libzstd (not included) to CppCheck

As a bonus bonus, abigail rules work out-of-tree, too

Against current trunk:
  $ diff -U0 ./destdir.listing ~/store/code/zfs/destdir.listing
  -destdir/usr/local/include/libspl/sscanf.h

  $ diff --color -U0 ./zfs-2.1.99.tar.gz.listing ../oot/zfs-2.1.99.tar.gz.listing | grep -v @@ | grep -v /Makefile
  -zfs-2.1.99/config/Abigail.am
  -zfs-2.1.99/lib/libspl/include/util/
  -zfs-2.1.99/lib/libspl/include/util/sscanf.h

  $ diff --color -U0 ./zfs-2.1.99.tar.gz.listing ../oot/zfs-2.1.99.tar.gz.listing | grep -v @@ | grep /Makefile
  -zfs-2.1.99/lib/libavl/Makefile.in
  -zfs-2.1.99/lib/libefi/Makefile.in
  -zfs-2.1.99/lib/libicp/Makefile.in
  -zfs-2.1.99/lib/libnvpair/Makefile.in
  -zfs-2.1.99/lib/libshare/Makefile.in
  -zfs-2.1.99/lib/libspl/include/Makefile.in
  -zfs-2.1.99/lib/libspl/include/os/freebsd/Makefile.am
  -zfs-2.1.99/lib/libspl/include/os/freebsd/Makefile.in
  -zfs-2.1.99/lib/libspl/include/os/freebsd/sys/Makefile.am
  -zfs-2.1.99/lib/libspl/include/os/freebsd/sys/Makefile.in
  -zfs-2.1.99/lib/libspl/include/os/linux/Makefile.am
  -zfs-2.1.99/lib/libspl/include/os/linux/Makefile.in
  -zfs-2.1.99/lib/libspl/include/os/linux/sys/Makefile.am
  -zfs-2.1.99/lib/libspl/include/os/linux/sys/Makefile.in
  -zfs-2.1.99/lib/libspl/include/os/Makefile.am
  -zfs-2.1.99/lib/libspl/include/os/Makefile.in
  -zfs-2.1.99/lib/libspl/include/rpc/Makefile.am
  -zfs-2.1.99/lib/libspl/include/rpc/Makefile.in
  -zfs-2.1.99/lib/libspl/include/sys/dktp/Makefile.am
  -zfs-2.1.99/lib/libspl/include/sys/dktp/Makefile.in
  -zfs-2.1.99/lib/libspl/include/sys/Makefile.am
  -zfs-2.1.99/lib/libspl/include/sys/Makefile.in
  -zfs-2.1.99/lib/libspl/include/util/Makefile.am
  -zfs-2.1.99/lib/libspl/include/util/Makefile.in
  -zfs-2.1.99/lib/libspl/Makefile.in
  -zfs-2.1.99/lib/libtpool/Makefile.in
  -zfs-2.1.99/lib/libunicode/Makefile.in
  -zfs-2.1.99/lib/libuutil/Makefile.in
  -zfs-2.1.99/lib/libzfsbootenv/Makefile.in
  -zfs-2.1.99/lib/libzfs_core/Makefile.in
  -zfs-2.1.99/lib/libzfs/Makefile.in
  -zfs-2.1.99/lib/libzpool/Makefile.in
  -zfs-2.1.99/lib/libzstd/Makefile.in
  -zfs-2.1.99/lib/libzutil/Makefile.in
  -zfs-2.1.99/lib/Makefile.in

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:18:11 -07:00
наб 6fc34371e1 libzfs: pool: fix false-positives -Wmaybe-uninitialised
As noted by gcc (Debian 10.2.1-6) 10.2.1 20210110

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:18:06 -07:00
наб be91239efa module: Makefile: cppcheck: zfs_config.h lives in builddir
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:18:02 -07:00
наб ae43120abc config: user: drop ZONENAME, avoid lying about being Linux-only
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:17:55 -07:00
наб 0fb1bf6586 libspl: include: remove [util/]sscanf.h
Unused, empty, installs in a weird location

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:17:49 -07:00
наб 841fd303b8 copy-builtin: add hooks with sed/>>
The order in fs/Makefile doesn't matter,
the order in fs/Kconfig is preserved (ext2 is included as the first
thing in the first if BUILD block, and only once), but I don't think it
matters much either, realistically

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:17:43 -07:00
наб c6f923fba4 autogen.sh: explicitly build its containing directory
No changes in currently-accepted usages (no-argument), but allows
  /src/path/autogen.sh && /src/path/configure
for simpler out-of-tree builds

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:17:36 -07:00
наб ea532b0e6e Remove compat spl-x.y.z from the distribution
This was added in 93ce2b4ca5 ("Update
build system and packaging"), which merged the SPL and ZFS trees,
and included in 0.8.0; "the next major release" was 2.0.0

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:17:26 -07:00
наб 5fc332ae4b Makefile: zfs-tests lives in srcdir; zfs-tests: accept common.sh path
This fixes out-of-tree builds

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13316
2022-05-10 10:16:47 -07:00
Rich Ercolani ecaccf764a
Workaround broken VDEV_UPATH
Sometimes, for reasons I haven't looked into yet, VDEV_UPATH
gets set to /dev/(null), breaking all these scripts.

It'd be nice to have a fallback case to avoid total failure.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #13436
2022-05-10 10:14:07 -07:00
Rich Ercolani a30927f763
Add workaround for broken Linux pipes
Linux has an unresolved hang if you resize a pipe with bytes
in it.

Since there's no obvious way to detect this happening, added a
workaround to disable resizing the pipe buffer if you set an
environment variable.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #13309
2022-05-09 16:33:55 -07:00
hping a18d13c200
abd_os: remove redundant refcount creation for abd_children
Refcount creation for abd_zero_scatter->abd_children is redundant in
abd_alloc_zero_scatter, as it has been done in abd_init_struct.

In addition, abd_children is undefined when ZFS_DEBUG is disabled, the
reference of abd_children in abd_alloc_zero_scatter breaks build of
libzpool when ZFS_DEBUG is disabled.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Signed-off-by: Ping Huang <huangping@smartx.com>
Closes #13429
2022-05-09 16:30:16 -07:00
наб d1fd6dbf6d
man: zpool-import.8: -d -or -c
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13437
2022-05-09 16:03:17 -07:00
Aidan Harris 493b6e5607
Fix functions without a prototype
clang-15 emits the following error message for functions without
a prototype:

fs/zfs/os/linux/spl/spl-kmem-cache.c:1423:27: error:
  a function declaration without a prototype is deprecated
  in all versions of C [-Werror,-Wstrict-prototypes]

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Aidan Harris <me@aidanharr.is>
Closes #13421
2022-05-06 11:57:37 -07:00
наб e77d59ebb2
zpool: guard vs_noalloc and vs_pspace with VDEV_STAT_VALID()
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Closes #13412
2022-05-05 09:45:12 -07:00
Rich Ercolani 7bf06f7262
Corrected edge case in uncompressed ARC->L2ARC handling
I genuinely don't know why this didn't come up before,
but adding the LZ4 early abort pointed out this flaw,
in which we're allocating a buffer of one size, and
then telling the compressor that we're handing it buffers
of a different size, which may be Very Different - say,
allocating 512b and then telling it the inputs are 128k.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: George Amanakis <gamanakis@gmail.com>
Signed-off-by: Rich Ercolani <rincebrain@gmail.com>
Closes #13375
2022-05-04 11:59:30 -07:00
Mateusz Guzik 81b8b2d004
FreeBSD: use zero_region instead of allocating a dedicated page
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Brian Atkinson <batkinson@lanl.gov>
Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Closes #13406
2022-05-04 11:46:37 -07:00
WHR a894ae75b8 Fix incorrect use of unit prefix names in man pages
Reviewed-by: George Melikov <mail@gmelikov.ru>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Damian Szuberski <szuberskidamian@gmail.com>
Signed-off-by: WHR <msl0000023508@gmail.com>
Closes #13363
2022-05-04 11:44:12 -07:00
Alexander Motin c55b293287
Improve mg_aliquot math
When calculating mg_aliquot alike to #12046 use number of unique data
disks in the vdev, not the total number of children vdev.  Increase
default value of the tunable from 512KB to 1MB to compensate.

Before this change each disk in striped pool was getting 512KB of
sequential data, in 2-wide mirror -- 1MB, in 3-wide RAIDZ1 -- 768KB.
After this change in all the cases each disk should get 1MB.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Sponsored-By: iXsystems, Inc.
Closes #13388
2022-05-04 11:33:42 -07:00
Brian Behlendorf 34dbc618f5
Reduce dbuf_find() lock contention
Holding a dbuf is a common operation which can become highly contended
in dbuf_find() when acquiring the dbuf hash mutex.  This is particularly
true on Linux when reading/writing volumes since by default up to 32
threads from the zvol_taskq may be taking a hold of the same dbuf.
This should also be observable on FreeBSD as long as there are enough
processes accessing the volume concurrently.

This is further aggregrated by the fact that only the block id will
be unique when calculating the dbuf hash for a single volume.  The
objset id, object id, and level will be the same for data blocks.
This has been observed to result in a somehwat less than uniform hash
distribution and a longer than expected max hash chain depth (~20)
on a large memory system (256 GB) using volumes.

This commit improves the siutation by switching the hash mutex to
an rwlock to allow concurrent lookups, and increasing DBUF_RWLOCKS
from 2048 to 8192 to further reduce the odds of a hash collision.

Reviewed-by: Tony Hutter <hutter2@llnl.gov>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes #13405
2022-05-04 11:17:29 -07:00
Shaan Nobee 411f4a018d
Speed up WB_SYNC_NONE when a WB_SYNC_ALL occurs simultaneously
Page writebacks with WB_SYNC_NONE can take several seconds to complete 
since they wait for the transaction group to close before being 
committed. This is usually not a problem since the caller does not 
need to wait. However, if we're simultaneously doing a writeback 
with WB_SYNC_ALL (e.g via msync), the latter can block for several 
seconds (up to zfs_txg_timeout) due to the active WB_SYNC_NONE 
writeback since it needs to wait for the transaction to complete 
and the PG_writeback bit to be cleared.

This commit deals with 2 cases:

- No page writeback is active. A WB_SYNC_ALL page writeback starts 
  and even completes. But when it's about to check if the PG_writeback 
  bit has been cleared, another writeback with WB_SYNC_NONE starts. 
  The sync page writeback ends up waiting for the non-sync page 
  writeback to complete.

- A page writeback with WB_SYNC_NONE is already active when a 
  WB_SYNC_ALL writeback starts. The WB_SYNC_ALL writeback ends up 
  waiting for the WB_SYNC_NONE writeback.

The fix works by carefully keeping track of active sync/non-sync 
writebacks and committing when beneficial.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Shaan Nobee <sniper111@gmail.com>
Closes #12662
Closes #12790
2022-05-03 13:23:26 -07:00