This is mostly important for the multiple MSI message case where the
IDT vectors for the entire group need to be allocated together. This
also restores the assumptions made by the PCI bus code that it could
invoke PCIB_MAP_MSI() once MSI vectors were allocated.
- To avoid whiplash with CPU assignments, change the way that CPUs are
assigned to interrupt sources on activation. Instead of assigning the
CPU via pic_assign_cpu() before calling enable_intr(), allow the
different interrupt source drivers to ask the MD interrupt code which
CPU to use when they allocate an IDT vector. I/O APIC interrupt pins
do this in their pic_enable_intr() routines giving the same behavior as
before. MSI sources do it when the IDT vectors are allocated during
msi_alloc() and msix_alloc().
- Change the intr_table_lock from an sx lock to a mutex.
Tested by: rnoland
in particular "$@"$ifschar if the final positional parameter is empty.
With the NetBSD code, adding the $ifschar removes a parameter.
PR: standards/79067
Approved by: ed (mentor) (implicit)
for in_ifaddrhead, we stick with an rwlock for the time being, which
we will revisit in the future with a possible move to rmlocks.
Some pieces of code require significant further reworking to be
safe from all classes of writer-writer races.
Reviewed by: bz
MFC after: 6 weeks
insisting on privileged port access.
Include /var/yp/Makefile.local if it exists and suggest using
it to override /var/yp/Makefile behaviour.
Approved by: re (kib)
MFC after: 3 weeks
Use the vbl_lock when maniputlating the refcount. Eventually I want to
convert this to use our internal refcount code. Continue to use atomic
ops for manipulating vblank count since we access it often just for
reading.
MFC after: 3 days
This adds the following functions to the acl(3) API: acl_add_flag_np,
acl_clear_flags_np, acl_create_entry_np, acl_delete_entry_np,
acl_delete_flag_np, acl_get_extended_np, acl_get_flag_np, acl_get_flagset_np,
acl_set_extended_np, acl_set_flagset_np, acl_to_text_np, acl_is_trivial_np,
acl_strip_np, acl_get_brand_np. Most of them are similar to what Darwin
does. There are no backward-incompatible changes.
Approved by: rwatson@
A fresh install of a current 8.0 snapshot uses 156MB with a single kernel
and having the filesystem too small prevented the system from booting.
Reviewed by: marcel
MFC after: 1 week
in_ifaddrhead and INADDR_HASH address lists.
Previously, these lists were used unsynchronized as they were effectively
never changed in steady state, but we've seen increasing reports of
writer-writer races on very busy VPN servers as core count has gone up
(and similar configurations where address lists change frequently and
concurrently).
For the time being, use rwlocks rather than rmlocks in order to take
advantage of their better lock debugging support. As a result, we don't
enable ip_input()'s read-locking of INADDR_HASH until an rmlock conversion
is complete and a performance analysis has been done. This means that one
class of reader-writer races still exists.
MFC after: 6 weeks
Reviewed by: bz
in particular, add a reference for in6_ifaddrhead since we do remove a
reference for it when an IPv6 address is removed. This fixes ifconfig
delete of an IPv6 alias.
Reported by: tegge
MFC after: 6 weeks
offset of the stat is not known until link time so we must emit a
function to call SYSCTL_ADD_PROC rather than using SYSCTL_PROC
directly.
- Eliminate the atomic from SCHED_STAT_INC now that it's using per-cpu
variables. Sched stats are always incremented while we're holding
a spinlock so no further protection is required.
Reviewed by: sam
during reading of the code. Change the code so that it never accesses
rc_connecting, rc_closed or rc_client when the rc_lock mutex is not held.
Also, it now performs the CLNT_CLOSE(client) and CLNT_RELEASE(client)
calls after the rc_lock mutex has been released, since those calls do
msleep()s with another mutex held. Change clnt_reconnect_call() so that
releasing the reference count is delayed until after the
"if (rc->rc_client == client)" check, so that rc_client cannot have been
recycled.
Tested by: pho
Reviewed by: dfr
Approved by: kib (mentor)
part of libc is still not thread safe but this would at least
reduce the problems we have.
PR: threads/118544
Submitted by: Changming Sun <snnn119 gmail com>
MFC after: 2 weeks
This covers the common case of unsliced USB drives, and makes it possible to
select them as installation source media.
PR: 61152, 115197, 135016
Submitted by: randi
MFC after: 1 month
meant primarily for _non_ interactive use. Scripts that run cxgbtool
repeatedly to perform register r/w or mdio will benefit from this.
Instead of fork/exec'ing a new cxgbtool for every regio/mdio you can
simply open a pair of pipes to/from cxgbtool and run cmds over them.
Approved by: gnn (mentor)
Import if_epair(4), a virtual cross-over Ethernet-like interface pair.
Note these files are 1:1 from p4 and not yet connected to the build
not knowing about the new netisr interface.
Sponsored by: The FreeBSD Foundation
