pdfork.2: clarify that PD_DAEMON acts on current file
Also do not start a new list for each flag item.
Reviewed by: markj
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential revision: https://reviews.freebsd.org/D57124
procdesc: track count of open files
Introduce pd_fpcount that counts the number of file references to the
procdesc. Remove the PDF_CLOSED flag, now it is expressed as
pd_fpcount == 0.
Only send SIGKILL and clear pointers when we are closing the last file
referencing procdesc.
This should be nop until the next commit.
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D57124
procdesc_exit(): assert that _exit() was called
Check that the P_WEXIT flag is set.
Requested by: markj
Reviewed by: markj
Tested by: pho
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Differential revision: https://reviews.freebsd.org/D57124
nfsd: Optionally enable use of M_EXTPG mbufs for read replies
A test site determined that, for a Mellanox NIC which can handle
M_EXTPG mbufs, an improvement of 5-15% for read rate could be
achieved if the read reply was in M_EXTPG mbufs.
A patch that tried to determine if the outbound NIC supported
M_EXTPG mbufs (IFCAP_MEXTPG) did not pass review.
However, it does appear that this can be useful for NFS-over-RDMA.
(Which just happen to use NICs that do support M_EXTPG mbufs.)
As such, this patch enables them is xp_extpg is set to true,
which is never for now, but might be set true for RDMA or
when vfs.nfsd.enable_mextpg is set non-zero. (It is 0 by
default, so this is never enabled by default at this time.)
Tested by: Greg Becker <becker.greg at att.net>
MFC after: 2 weeks
raw ip: fix race of two connect(2)
The historical design of sockets is that on a re-connect the disconnect is
performed at the socket layer in soconnectat(). Since SMP times this is
known to be racy and the function has appopriate comment. I missed that
in the recent change. The pr_connect method should normally expect the
socket to be already disconnected, however should be able to handle a race
where socket is actually connected. Convert the check that incorrectly
tried to handle normal path of re-connect into check that handles the
race.
Reported by: markj
Fixes: ece716c5d34728a170f1dfe1b3389c267d6ddd1e
powerpc/booke(pmap): Flash-invalidate TLB on TID rollover
When the TID rolls over on a given CPU, simply flash-invalidate the
TLB instead of walking the TLB to only invalidate the repurposed TID.
Walking 256 entries is expensive, and we'll likely be inserting a bunch
new ones anyway in the new environment, since 256 really only handles
1MB of storage, so the likelihood of other mappings continuing to exist
in the TLB when their thread owner is scheduled again is very very
small.
powerpc/pmap(booke): Fix TLB TID eviction
Fix tid_set_busy() for when `pmap` is NULL. Obviously a NULL pointer
cannot be correctly used, so I'm not sure how it worked in testing on
64-bit.
git-mfc: Allow merging merge commits
In order to merge merge commits (such as vendor imports), we need to
tell git cherry-pick which of the two branches referenced in the commit
is the mainline. In our case, it is always the first.
Approved by: markj
pf: revert netlink commands back to enum
Revert pf_nl.h part of 017690e50913 and use new libsysdecode build glue
that parses enums.
Reviewed by: kp, glebius
Differential Revision: https://reviews.freebsd.org/D57866
dtrace tests: Fix finding multiple process results
When looking up self process we can use `ps -p $$` directly rather
than grep which may find other processes ending in the expected PID.
Sponsored by: Dell Inc.
Reviewed by: markj, vangyzen
Differential Revision: https://reviews.freebsd.org/D58019
acl_from_text.c: Allow negative uid/gid numbers to be handled
getfacl / acl_to_text() incorrectly prints uid/gid numbers as signed integers.
This causes uid / gid numbers larger than 2G (2147483648) to print as
negative numbers.
The libc acl_from_text() function does not handle negative numbers.
This diff adds a backwards compatiblity fix to allow negative numbers...
Reviewed by: rmacklem
MFC after: 2 weeks
Differential Revision: https://reviews.freebsd.org/D57180
if_ovpn: Fix memory leak in VNET during unload
Unloading if_ovpn while it's in use by other vnets causes
memory leaks and panics.
Fix this by reverting VNET_SYSUNINIT and adjusting the SI_SUB
initialization order.
Reviewed by: markj
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D54175
libllvmminimal: Fix building with LLVM < 21 on riscv64
On most architectures we end up not needing ABIBreak.cpp as, although
some of the sources here do reference EnableABIBreakingChecks (or, if
assertions are disabled, DisableABIBreakingChecks) at a source level, we
compile with -ffunction-sections and -fdata-sections, and link with
--gc-sections, and it happens to be the case that all references can be
GC'ed. However, prior to LLVM 21, the RISC-V backend did not apply
-fdata-sections to .sdata, where references to these symbols end up, and
for some files we're building with such references we end up not being
able to GC .sdata due to the other unrelated data in it, meaning that we
do in fact need to build ABIBreak.cpp.
Whilst we could make this conditional on the architecture, it's a tiny
file, and it's a bit fragile to rely on GC behaviour, so just include it
unconditionally.
Reviewed by: dim, emaste
Fixes: 770cf0a5f02d ("Fixups after llvm-project main llvmorg-21-init-19288-gface93e724f4 merge")
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vfs: Fix resource leaks in kern_symlinkat()
Fixes: 2ec2ba7e232d ("vfs: Add VFS/syscall support for Solaris style extended attributes")
Reported by: Yuxiang Yang, Yizhou Zhao, Ao Wang, Xuewei Feng, Qi Li,
and Ke Xu from Tsinghua University using GLM-5.2 from Z.ai
Reviewed by: rmacklem, kib
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D58053
arm64/vmm: Make remaining registers use hypctx_*_sys_reg
Move vgic, timer and trapframe registers into sys_regs to handle them
in the same way as all the other registers.
Signed-off-by: Kajetan Puchalski <kajetan.puchalski at arm.com>
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D56556
arm64/vmm: Refactor vmm_hyp.c
Refactor vmm_hyp.c to split register reload logic by type of register,
streamline the implementation and improve readability.
Signed-off-by: Kajetan Puchalski <kajetan.puchalski at arm.com>
Reviewed by: andrew
Sponsored by: Arm Ltd
Differential Revision: https://reviews.freebsd.org/D56553
