read() can return a short read, whereas stream_read() waits until the
full version string is read.
Submitted by: Ka Ho Ng <khng300_gmail.com>
Reviewed by: grehan
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D23591
Use __riscv_flen instead of __riscv_float_abi_soft. While the latter works for
userland (and one could argue it's more correct), it fails for the kernel. We
compile the kernel with -mabi=lp64 (eg soft float abi) to avoid floating point
instructions in the kernel. We also compile the kernel -march=rv64imafdc for
hard float kernels (eg those with options FPE), but with -march=rv64imac for
softfloat kernels (eg those with FPE). Since we do this, in the kernel (as in
userland) __riscv_flen will be defined for 'riscv64' and not for 'riscv64sf'.
This also removes the -DMACHINE_ARCH hack now that it's no longer needed.
Longer term, we should return the ABI from the sysctl hw.machine_arch like on
amd64 for i386 binaries.
Suggested by: mhorne@
Differential Revision: https://reviews.freebsd.org/D23813
Mesa's drm_syncobj usage, in the LinuxKPI.
While at it optimise the jiffies conversion functions to avoid repeated
and constant calculations.
Submitted by: Greg V <greg@unrelenting.technology>
Differential Revision: https://reviews.freebsd.org/D23846
MFC after: 1 week
Sponsored by: Mellanox Technologies
The change affects only FreeBSD specific code as the common code already
mostly uses the more idiomatic and correct ZFS_MAX_DATASET_NAME_LEN.
MFC after: 1 week
It's very unlikely that zfsvfs_update_fromname() and
zvol_rename_minors() ever did anything during the promote operation as
the old name was not initialized.
MFC after: 1 week
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.
This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.
Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT
Reviewed by: cem
Approved by: csprng, kib (mentor, blanket)
Differential Revision: https://reviews.freebsd.org/D23841
Swap buckets on free as well as alloc so that alloc is always the most
cache-hot data.
When selecting a zone domain for the round-robin bucket cache use the
local domain unless there is a severe imbalance. This does not affinitize
memory, only locks and queues.
Reviewed by: markj, rlibby
Differential Revision: https://reviews.freebsd.org/D23824
lookup pages. These variants will fall back to their locked counterparts
if the page is not present.
Discussed with: kib, markj
Differential Revision: https://reviews.freebsd.org/D23449
Per the documentation for dnode_next_offset in dnode.c, the "txg"
parameter specifies a lower bound on which transaction the dnode can
be found in. We are interested in all dnodes that are removed between
the first and last transaction in the snapshot. It doesn't need to be
created in that snapshot to correspond to a removed file.
In fact, the behavior of zfs diff in the test case exactly matches
this: the transaction that created the data that was deleted in snapshot
"2" was produced before, in snapshot "1", definitely predating the first
transaction in snapshot "2".
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Tim Chase <Tim Chase <tim@onlight.com>
Closes#2081zfsonlinux/zfs@7290cd3c4e
MFC after: 1 week
From POSIX,
[ENOTSUP]
The implementation does not support the combination of accesses
requested in the prot argument.
This fits the case that prot contains permissions which are not a subset
of prot_max.
Reviewed by: brooks, cem
Relnotes: Yes
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D23843
Remove a number of workarounds for older versions of FreeBSD. FreeBSD stable/10
was branched over 6 years ago. All of these changes date from about that time or
earlier. These workarounds are extensive and get in the way of understanding
the current flow in the driver.
Binutils has already been reduced to installing ld only on powerpc32
and as only on amd64. (Also objdump on every arch supported by binutils
2.17.50.) Although BINUTILS_BOOTSTRAP serves no purpose on MIPS there
is no reason to have a special case for it.
Sponsored by: The FreeBSD Foundation
Also update comments for which architectures use 128 bit long doubles,
as appropriate.
The softfloat specialization routines weren't updated since they
appear to be from an upstream source which we may want to update in
the future to get a more favorable license.
Reviewed by: emaste@
Differential Revision: https://reviews.freebsd.org/D23658
Once upon a time, sparc64 was the only ld128 architecture. However,
both aarch64 and riscv are now such architectures. Many of the
comments about how slow multiplication was on old sparc64 processors
are now no longer true. However, since no evaluation has been done for
aarch64 yet, it's unclear if they are still relevant or not. If not,
the code should be changed. If so, the comments should remove the
uncertainty.
Reviewed by: emaste@
Differential Revision: https://reviews.freebsd.org/D23658
This patch addresses an issue found in ztest where resilver
write zios that were passed to an indirect vdev would end up
being handled as though they were resilver read zios. This
caused issues where the zio->io_abd would be both read to
and written from at the same time, causing asserts to fail.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed by: Matt Ahrens <matt@delphix.com>
Reviewed-by: Serapheim Dimitropoulos <serapheim@delphix.com>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes#8193zfsonlinux/zfs@5aa95ba0d3
MFC after: 1 week
This patch fixes an issue discovered by ztest where
dsl_scan_ddt_entry() could add I/Os to the dsl scan queues
between when the scan had finished all required work and
when the scan was marked as complete. This caused the scan
to spin indefinitely without ending.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes#8010zfsonlinux/zfs@5e0bd0ae05
MFC after: 1 week
This patch corrects 2 small bugs where scn->scn_phys_cached was
not properly updated to match the primary copy when it needed to
be. The first resulted in the pause state not being properly
updated and the second resulted in the cached version being
completely zeroed even if the primary was not.
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Serapheim Dimitropoulos <serapheim.dimitro@delphix.com>
Reviewed-by: Matthew Ahrens <mahrens@delphix.com>
Signed-off-by: Tom Caputi <tcaputi@datto.com>
Closes#8010zfsonlinux/zfs@8cb119e3dc
MFC after: 1 week
When scn->scn_maxinflight_bytes has not been initialized it's
possible to hang on the condition variable in scan_exec_io().
This issue was uncovered by ztest and is only possible when
deduplication is enabled through the following call path.
txg_sync_thread()
spa_sync()
ddt_sync_table()
ddt_sync_entry()
dsl_scan_ddt_entry()
dsl_scan_scrub_cb()
dsl_scan_enqueuei()
scan_exec_io()
cv_wait()
Resolve the issue by always initializing scn_maxinflight_bytes
to a reasonable minimum value. This value will be recalculated
in dsl_scan_sync() to pick up changes to zfs_scan_vdev_limit
and the addition/removal of vdevs.
Reviewed-by: Tom Caputi <tcaputi@datto.com>
Reviewed by: George Melikov <mail@gmelikov.ru>
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Closes#7098zfsonlinux/zfs@f90a30ad1b
MFC after: 1 week
r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are
still not MPSAFE (or already are but aren’t properly marked).
Use it in preparation for a general review of all nodes.
This is non-functional change that adds annotations to SYSCTL_NODE and
SYSCTL_PROC nodes using one of the soon-to-be-required flags.
Mark all obvious cases as MPSAFE. All entries that haven't been marked
as MPSAFE before are by default marked as NEEDGIANT
Approved by: kib (mentor, blanket)
Commented by: kib, gallatin, melifaro
Differential Revision: https://reviews.freebsd.org/D23718
like the mlx-c5 and c6 that require a "setup" routine before
the tcp_ratelimit code can declare and use a rate. I add the
setup routine to if_var as well as fix tcp_ratelimit to call it.
I also revisit the rates so that in the case of a mlx card
of type c5/6 we will use about 100 rates concentrated in the range
where the most gain can be had (1-200Mbps). Note that I have
tested these on a c5 and they work and perform well. In fact
in an unloaded system they pace right to the correct rate (great
job mlx!). There will be a further commit here from Hans that
will add the respective changes to the mlx driver to support this
work (which I was testing with).
Sponsored by: Netflix Inc.
Differential Revision: ttps://reviews.freebsd.org/D23647
Add support for non-ID registers when printing CPU information. This is
used with the cache type register to print details of the cache on boot.
Sponsored by: Innovate UK
The requirements of an Address Space ID allocator and a Virtual Machine ID
allocator are similar. Generalise the former code so it can be used with
the latter.
Reviewed by: alc (previous version)
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D23831
On arm64 the stage 1 and stage 2 pte formats are similar enough we can
reuse the pmap code for both. As they are only similar and not identical
we need to know if we are managing stage 1 or stage 2 tables.
Add an enum to store this information and a check to make sure it is
set to stage 1 when we manage stage 1 pte fields.
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D23830
