freebsd with flexible iflib nic queues
d7aadbf9ce
exit1() we don't have to release it until we acquire schd_lock to call cpu_throw(). - Since we can switch at any time due to preemption or a lock release prior to acquiring sched_lock, don't update switchtime and switchticks until the very end of exit1() after we have acquired sched_lock. - Interlock the proctree_lock and proc lock in wait1() and exit1() to avoid lost wakeups when a parent blocks waiting for a child to exit at the bottom of wait1(). In exit1() the proc lock interlocked with proctree_lock (and released after acquiring sched_lock) is that of the parent process. - In wait1() use an exclusive lock of proctree lock while we are looking for a process to harvest. This allows us to completely remove all references to the process once we've found one (i.e., disconnect it from pgrp's, session's, zombproc list, and it's parent's children list) "atomically" without needing to worry about a lock upgrade. - We don't need sched_lock to test if p_stat is SZOMB or SSTOP when holding the proc lock since the proc lock is always held with p_stat is set to SZOMB or SSTOP. - Protect nprocs with an xlock of the allproc_lock. |
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| bin | ||
| contrib | ||
| crypto | ||
| etc | ||
| games | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| kerberosIV | ||
| lib | ||
| libexec | ||
| release | ||
| sbin | ||
| secure | ||
| share | ||
| sys | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| COPYRIGHT | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.upgrade | ||
| README | ||
| UPDATING | ||
This is the top level of the FreeBSD source directory. This file was last revised on: $FreeBSD$ For copyright information, please see the file COPYRIGHT in this directory (additional copyright information also exists for some sources in this tree - please see the specific source directories for more information). The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree, the most commonly used one being ``world'', which rebuilds and installs everything in the FreeBSD system from the source tree except the kernel, the kernel-modules and the contents of /etc. The ``buildkernel'' and ``installkernel'' targets build and install the kernel and the modules (see below). Please see the top of the Makefile in this directory for more information on the standard build targets and compile-time flags. Building a kernel is a somewhat more involved process, documentation for which can be found at: http://www.FreeBSD.org/handbook/kernelconfig.html And in the config(8) man page. Note: If you want to build and install the kernel with the ``buildkernel'' and ``installkernel'' targets, you might need to build world before. More information is available in the handbook. The sample kernel configuration files reside in the sys/<arch>/conf sub-directory (assuming that you've installed the kernel sources), the file named GENERIC being the one used to build your initial installation kernel. The file NOTES contains entries and documentation for all possible devices, not just those commonly used. It is the successor of the ancient LINT file, but in contrast to LINT, it is not buildable as a kernel but a pure reference and documentation file. Source Roadmap: --------------- bin System/user commands. contrib Packages contributed by 3rd parties. crypto Cryptography stuff (see crypto/README). etc Template files for /etc. games Amusements. gnu Various commands and libraries under the GNU Public License. Please see gnu/COPYING* for more information. include System include files. kerberos5 Kerberos5 (Heimdal) package. kerberosIV KerberosIV (eBones) package. lib System libraries. libexec System daemons. release Release building Makefile & associated tools. sbin System commands. secure Cryptographic libraries and commands. share Shared resources. sys Kernel sources. tools Utilities for regression testing and miscellaneous tasks. usr.bin User commands. usr.sbin System administration commands. For information on synchronizing your source tree with one or more of the FreeBSD Project's development branches, please see: http://www.FreeBSD.org/handbook/synching.html