biology/htslib: Remove obsolete patches
Patches for aarch64 were erroneously restored due to a transient
build failure on my M1, which was misinterpreted.
sysctl: don't loop when EAGAIN is returned
When userland_sysctl() experiences EAGAIN, don't loop internally but
leave retrying to the caller.
Looping was a problem in case of using tcpsso(8) to switch a TCP stack
where the acceptance check of the new TCP stack results in EAGAIN.
Reviewed by: kib, glebius
MFC after: 1 week
MFC to: stable/15
Sponsored by: Netflix, Inc.
Differential Revision: https://reviews.freebsd.org/D60444
acpi: Tasks: Document why 'acpi_task_count' is accessed unsynchronized
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
(cherry picked from commit e89c3ac5df58a9eae9d01f325ffc9b34258c4b29)
acpi: Tasks: Make OsdSchedule.c whitespace clean
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
(cherry picked from commit f0825f75bab8ae7cb8e0ba717f76110b6f1862f3)
acpi: Tasks: Remove unnecessary includes
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
(cherry picked from commit 2165accd3748c0acb6e82756d71a46509b220fd8)
ifuncs: Include <machine/ifunc.h> instead of <x86/ifunc.h>
All architectures have been providing an 'ifunc.h' header with
DEFINE_IFUNC() et alter working both in kernel and userland since commit
cf41d1113377 ("riscv: implement kernel ifunc resolution"), and separate
<i386/ifunc.h> and <amd64/ifunc.h> headers were introduced in commit
2b1db07bec92 ("x86: add machine/ifunc.h"), so stop including
<x86/ifunc.h> directly and use the common <machine/ifunc.h> idiom.
While here, re-order includes in the blocks featuring <x86/ifunc.h>,
which requires fixing <x86/apicvar.h> so that it can be included before
<machine/intr_machdep.h>.
Reviewed by: kib
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60194
(cherry picked from commit a2fbd988638e94b61cc78449e893f2c02d43dec0)
random: Remove unused include of ifuncs
No functional change (intended).
Reviewed by: markj, emaste
Fixes: 3a12982962ce ("random: add RDSEED as a provably unique entropy source")
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60193
(cherry picked from commit 18ce3f50f630f64d5e9e898a3c06e9ed6e5a63a5)
NOTES: Multiple schedulers can be compiled in at once
Mention that ULE is the default scheduler when multiple ones are
compiled in and how the tunable 'kern.sched.name' can be used to select
another one.
While here, regroup SCHED_ULE and SCHED_4BSD, as they control if the
respective scheduler instances are compiled in, putting SCHED_STATS
aside.
Reviewed by: mchoo
Fixes: 75a66a92c92f ("- Add an option to compile in SCHED_STATS. ...")
Fixes: 1322760fd127 ("sys: enable both SCHED_ULE and SCHED_4BSD for some configs")
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60014
(cherry picked from commit 754d2c69f3589cdd0bc4649d9e85ecd59935d9d3)
ifuncs: Have DEFINE_*IFUNC() macros expand the passed name
While here, make each <machine/ifunc.h> header include <sys/types.h> so
that it can be included standalone.
Reviewed by: kib
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60167
(cherry picked from commit ab9fcc5a553a25804b9535190e914e3ba0e746cf)
NOTES: SMP: Move PREEMPTION out of the debugging options section
It has been activated by default for more than 20 years.
Reviewed by: mchoo, srcmgr (imp)
Fixes: 444ba945136b ("Switch the default scheduler to 4BSD...")
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60012
(cherry picked from commit 61ce73643f22f6f8273701eb978faa246bbca27d)
NOTES: IPI_PREEMPTION: Fix documentation, applies to all architectures
Move its description into 'sys/conf/NOTES' and update it to match reality.
Reviewed by: scheduler (mchoo)
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60013
(cherry picked from commit d972d832f580c307cdfd87d563a382f40877dd10)
sched: options: Regroup scheduler-related kernel options
This makes it easier to have a full list of them at a glance, and makes
for a natural place to add new ones.
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60010
(cherry picked from commit 406d6658ff821fc43eb0b2b10df4ab09eb2e2e16)
SYSCTL(9): Retire SYSCTL_NODE_CHILDREN()
It does not provide value over the pre-existing SYSCTL_STATIC_CHILDREN()
macro, which is widely used in the tree, whereas SYSCTL_NODE_CHILDREN()
is not.
Reviewed by: markj
MFC after: 3 days
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D60009
(cherry picked from commit 4672ad1f16092c146261b4de485ec5eb5e8d127b)
pwd(1): De-obfuscate, style(9)
In getcwd_logical(), test for a '.' or '..' component in one of the most
straightforward and intelligible ways possible.
In particular, this removes a superfluous re-test of the the component's
first character being '.' when the first one did not pass and, more
importantly, prevents the second test from relying on a side-effect in
the first.
While here, for better clarity, replace the loop that searches for '/'
with a simple call to strchrnul().
Add high-level comments about what is going on.
While here, test explicitly that pointed 'char' values are not 0 ('\0')
(style(9)).
While here, separate the successive steps of getcwd_logical() with blank
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