Although simple commands without a command word (only assignments and/or
redirections) are much like special builtins, POSIX and most shells seem to
agree that redirection errors should not abort the shell in this case. Of
course, the assignments persist and assignment errors are fatal.
To get the old behaviour portably, use the ':' special builtin.
To get the new behaviour portably, given that there are no assignments, use
the 'true' regular builtin.
We currently ignore readonly status for assignments before regular builtins
and external programs (these assignments are not persistent anyway), so just
check that the readonly variable really is not changed.
The test depends on the command builtin changes for 'command :'.
Make parsebackq a function instead of an emulated nested function.
This puts the setjmp usage in a smaller function where it is easier to avoid
bad optimizations.
This also "reverts" some FreeBSD local changes so we should now
be back to using entirely stock OpenSSL. The local changes were
simple $FreeBSD$ lines additions, which were required in the CVS
days, and the patch for FreeBSD-SA-09:15.ssl which has been
superseded with OpenSSL 0.9.8m's RFC5746 'TLS renegotiation
extension' support.
MFC after: 3 weeks
to match the values passed in and prevent the SIZE field being corrupted
when more than 2TB is allocated.
PR: bin/129706
Approved by: rrs (mentor)
MFC after: 1 week
COMPAT_43TTY enables the sgtty interface. Even though its exposure has
only been removed in FreeBSD 8.0, it wasn't used by anything in the base
system in FreeBSD 5.x (possibly even 4.x?). On those releases, if your
ports/packages are less than two years old, they will prefer termios
over sgtty.
pointer, rather than octeon_fpa_alloc.
o) Report half duplex status properly.
o) Do not unconditionally update the last known link status in the softc. If
report_link isn't set, when octeon_rgmx_config_speed is called the first
time it will tell the driver (essentially) that we have already marked the
interface up. Likewise, don't change media speed and duplex if only the
link status is at issue. [1]
o) Remove manual changing of link state and let octeon_rgmx_config_speed do the
heavy lifting. [1]
Reviewed by: [1] imp
Sponsored by: Packet Forensics
have the delayed function take an argument as to the offset
to the SCTP header. This allows it to work for V4 and V6.
This of course means changing all callers of the function
to either pass the header len, if they have it, or create
it (ip_hl << 2 or sizeof(ip6_hdr)).
PR: 144529
MFC after: 2 weeks
blog posting [1].
- Use word-sized test for unaligned pointer before working
the hard way.
Memory page boundary is always integral multiple of a word
alignment boundary. Therefore, if we can access memory
referenced by pointer p, then (p & ~word mask) must be also
accessible.
- Better utilization of multi-issue processor's ability of
concurrency.
The previous implementation utilized a formular that must be
executed sequentially. However, the ~, & and - operations can
actually be caculated at the same time when the operand were
different and unrelated.
The original Hacker's Delight formular also offered consistent
performance regardless whether the input would contain
characters with their highest-bit set, as it catches real
nul characters only.
These two optimizations has shown further improvements over the
previous implementation on microbenchmarks on i386 and amd64 CPU
including Pentium 4, Core Duo 2 and i7.
[1] http://vger.kernel.org/~davem/cgi-bin/blog.cgi/2010/03/08#strlen_1
MFC after: 1 month
- Add a missing callout_drain(9) before the descriptor deallocation.[1]
- Prefer callout_init_mtx(9) over callout_init(9) and let the callout
subsystem handle the mutex for callout function.
PR: kern/144453
Submitted by: Alexander Sack (asack at niksun dot com)[1]
MFC after: 1 week
Yukon FE and Yukon Ultra2. These controllers provide very simple
checksum computation mechanism and it requires additional pseudo
header checksum computation in upper stack. Even though I couldn't
see much performance difference with/without Rx checksum offloading
it may help notebook based controllers.
Actually controller can compute two checksum value by giving
different starting position of checksum computation on received
frame. However, for long time, Marvell's checksum offloading engine
have been known to have several silicon bugs so don't blindly trust
computed partial checksum value. Instead, compute partial checksum
twice by giving the same checksum computation position and compare
the result. If the value is different it's clear indication of
hardware bug. This configuration lose IP checksum offloading
capability but I think it's better to take safe route.
Note, Rx checksum offloading for Yukon XL was still disabled due to
known silicon bug.
index of status block is read first before acknowledging the
interrupts. Otherwise bge(4) may get stale status block as
acknowledging an interrupt may yield another status block update.
Reviewed by: marius
starting from netgraph import in 1999.
netstat(8) used pointer to node as node address, oops. That didn't
work, we need the node ID in brackets to successfully address a node.
We can't look into ng_node, due to inability to include netgraph/netgraph.h
in userland code. So let the node make a hint for a userland, storing
the node ID in its private data.
MFC after: 2 weeks
address as well as the transport protocol port information
from the outbound packets. The routing code is generic and
compares every byte in the given sockaddr object. Therefore
the temporary sockaddr objects must be cleared due to padding
bytes. In addition, the port information must be stripped
or the route search will either fail or return the incorrect
route entry.
Unit testing is done using OpenVPN over the if_tun interface.
MFC after: 7 days
no delayed checksum was added to the ip6 output code. This
causes cards that do not support SCTP checksum offload to
have SCTP packets that are IPv6 NOT have the sctp checksum
performed. Thus you could not communicate with a peer. This
adds the missing bits to make the checksum happen for these cards.
PR: 144529
MFC after: 2 weeks
arguments makes sense anymore. For example, what would a combination
of -3 (show three months) and -y (show the whole year) do?
We will abort on these cases.
- Move the debug option -d to -H (from highlight), while -d is now
used for setting the day of "today" so that -y and friends can
be tested.
