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freebsd-dev/sys/kern
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Lawrence Stewart 7d11e744c1 - Rework the underlying ALQ storage to be a circular buffer, which amongst other 
things allows variable length messages to be easily supported.

- Extend KPI with alq_writen() and alq_getn() to support variable length
  messages, which is enabled at ALQ creation time depending on the
  arguments passed to alq_open(). Also add variants of alq_open() and
  alq_post() that accept a flags argument. The KPI is still fully
  backwards compatible and shouldn't require any change in ALQ consumers
  unless they wish to utilise the new features.

- Introduce the ALQ_NOACTIVATE and ALQ_ORDERED flags to allow ALQ consumers
  to have more control over IO scheduling and resource acquisition
  respectively.

- Strengthen invariants checking.

- Document ALQ changes in ALQ(9) man page.

Sponsored by:	FreeBSD Foundation
Reviewed by:	gnn, jeff, rpaulo, rwatson
MFC after:	1 month
2010-04-26 13:48:22 +00:00
..
bus_if.m
clock_if.m
cpufreq_if.m
device_if.m
genassym.sh
imgact_aout.c
imgact_elf32.c
imgact_elf64.c
imgact_elf.c Add the ELF relocation base to struct image_params. This will be 2010-03-25 14:31:26 +00:00
imgact_gzip.c
imgact_shell.c
inflate.c
init_main.c Initialize the virtual memory-related resource limits in a single place. 2010-04-11 16:26:07 +00:00
init_sysent.c
kern_acct.c
kern_alq.c - Rework the underlying ALQ storage to be a circular buffer, which amongst other 2010-04-26 13:48:22 +00:00
kern_clock.c getblk lockmgr is mostly used as a msleep() and may lead too easilly to 2010-04-19 23:40:46 +00:00
kern_condvar.c
kern_conf.c Fix several style issues. 2010-02-27 15:26:36 +00:00
kern_cons.c
kern_context.c
kern_cpu.c Free allocated sbufs before returning ENOMEM. 2010-01-08 22:58:50 +00:00
kern_cpuset.c
kern_ctf.c
kern_descrip.c Remove one zero from the double-0. 2010-04-23 14:32:58 +00:00
kern_dtrace.c
kern_environment.c Merge change r198561 from projects/mips to head: 2010-01-10 22:34:18 +00:00
kern_event.c Defer freeing a kevent list until after dropping kqueue locks. 2010-03-30 18:31:55 +00:00
kern_exec.c Add the ELF relocation base to struct image_params. This will be 2010-03-25 14:31:26 +00:00
kern_exit.c Let access overriding to TTYs depend on the cdev_priv, not the vnode. 2009-12-19 18:42:12 +00:00
kern_fail.c Remove extraneous semicolons, no functional changes. 2010-01-07 21:01:37 +00:00
kern_fork.c
kern_gzio.c Merge projects/enhanced_coredumps (r204346) into HEAD: 2010-03-02 06:58:58 +00:00
kern_idle.c
kern_intr.c KASSERT that return value of interrupt filter complies with contract 2010-01-27 09:59:08 +00:00
kern_jail.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_kthread.c Use the cached value within comparison. 2010-02-19 15:10:05 +00:00
kern_ktr.c Change the semantics of the debug.ktr.alq_enable control so that when you 2010-04-14 21:42:29 +00:00
kern_ktrace.c
kern_linker.c
kern_lock.c Fix typos. 2010-01-07 01:24:09 +00:00
kern_lockf.c
kern_lockstat.c
kern_malloc.c
kern_mbuf.c
kern_mib.c Declare the kern.ngroups sysctl to be read-only, but tunable at boot for 2010-01-12 18:20:20 +00:00
kern_module.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_mtxpool.c
kern_mutex.c - Fix a race in sched_switch() of sched_4bsd. 2010-01-23 15:54:21 +00:00
kern_ntptime.c
kern_osd.c
kern_physio.c
kern_pmc.c
kern_poll.c
kern_priv.c
kern_proc.c Move the constants specifying the size of struct kinfo_proc into 2010-04-24 12:49:52 +00:00
kern_prot.c Only allocate the space we need before calling kern_getgroups instead 2010-01-15 07:18:46 +00:00
kern_resource.c sched_getparam was just plain broke for time-share 2010-03-03 21:46:51 +00:00
kern_rmlock.c Remove extra spaces (no functional change). 2009-12-25 21:14:05 +00:00
kern_rwlock.c Print the pointer to the lock with the panic message. The previous 2010-03-24 19:21:26 +00:00
kern_sdt.c
kern_sema.c
kern_shutdown.c Fix compilation in the !SMP case. 2010-04-20 12:22:06 +00:00
kern_sig.c When OOM searches for a process to kill, ignore the processes already 2010-04-06 10:43:01 +00:00
kern_switch.c
kern_sx.c In current code, threads performing an interruptible sleep (on both 2009-12-12 21:31:07 +00:00
kern_synch.c
kern_syscalls.c Introduce SYSCALL_INIT_HELPER and SYSCALL32_INIT_HELPER macros and 2010-03-19 10:56:30 +00:00
kern_sysctl.c
kern_tc.c
kern_thr.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_thread.c
kern_time.c
kern_timeout.c Properly fix callout handling by putting all the per-cpu info in 2009-12-14 12:23:46 +00:00
kern_umtx.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
kern_uuid.c
kern_xxx.c
ksched.c sched_getparam was just plain broke for time-share 2010-03-03 21:46:51 +00:00
link_elf_obj.c Kernel module support for mips. 2010-02-18 05:49:52 +00:00
link_elf.c
linker_if.m
Make.tags.inc
Makefile
makesyscalls.sh Remove unused LIBCOMPAT keyword from syscalls.master. 2010-02-08 10:02:01 +00:00
md4c.c
md5c.c
p1003_1b.c
posix4_mib.c
sched_4bsd.c Split out an invariant in order to better check that newtd, when 2010-01-24 18:16:38 +00:00
sched_ule.c - Fix a race in sched_switch() of sched_4bsd. 2010-01-23 15:54:21 +00:00
serdev_if.m
stack_protector.c
subr_acl_nfs4.c Fix comments. 2010-01-04 12:39:42 +00:00
subr_acl_posix1e.c Now that all the callers seem to be fixed, add KASSERTs to make sure VAPPEND 2009-12-26 11:36:10 +00:00
subr_autoconf.c
subr_blist.c
subr_bufring.c
subr_bus.c Make sure that we free the passed in data message if we don't actually 2010-04-20 20:39:42 +00:00
subr_clock.c
subr_devstat.c Update d_mmap() to accept vm_ooffset_t and vm_memattr_t. 2009-12-29 21:51:28 +00:00
subr_disk.c
subr_eventhandler.c Split eventhandler_register() into an internal part and a wrapper function 2010-03-19 19:51:03 +00:00
subr_fattime.c
subr_firmware.c Bump up the firmware_table from 30 to 50. bwn needs more than 30, it 2010-03-07 22:37:35 +00:00
subr_hash.c Decompose the most lousy named file in sys/kern; kern_subr.c. 2010-02-21 19:53:33 +00:00
subr_hints.c
subr_kdb.c
subr_kobj.c
subr_lock.c
subr_log.c
subr_mbpool.c
subr_mchain.c
subr_module.c
subr_msgbuf.c
subr_param.c Document the VM detection type and sysctl a bit better. 2010-03-02 23:57:42 +00:00
subr_pcpu.c
subr_power.c
subr_prf.c
subr_prof.c
subr_rman.c
subr_rtc.c
subr_sbuf.c
subr_scanf.c
subr_sglist.c
subr_sleepqueue.c Introduce the new kernel thread called "deadlock resolver". 2010-01-09 01:46:38 +00:00
subr_smp.c
subr_stack.c
subr_taskqueue.c
subr_trap.c
subr_turnstile.c Introduce the new kernel thread called "deadlock resolver". 2010-01-09 01:46:38 +00:00
subr_uio.c Decompose the most lousy named file in sys/kern; kern_subr.c. 2010-02-21 19:53:33 +00:00
subr_unit.c
subr_witness.c SLIP is gone; remove its mutex from witness. 2009-12-29 08:45:27 +00:00
sys_generic.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
sys_pipe.c Rename st_*timespec fields to st_*tim for POSIX 2008 compliance. 2010-03-28 13:13:22 +00:00
sys_process.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
sys_socket.c
syscalls.c
syscalls.master Remove unused LIBCOMPAT keyword from syscalls.master. 2010-02-08 10:02:01 +00:00
systrace_args.c
sysv_ipc.c Move SysV IPC freebsd32 compat shims helpers from freebsd32_misc.c to 2010-03-19 11:01:51 +00:00
sysv_msg.c Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding 2010-03-19 11:04:42 +00:00
sysv_sem.c Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding 2010-03-19 11:04:42 +00:00
sysv_shm.c Move SysV IPC freebsd32 compat shims from freebsd32_misc.c to corresponding 2010-03-19 11:04:42 +00:00
tty_compat.c Make TIOCSTI work again. 2010-01-04 20:59:52 +00:00
tty_info.c
tty_inq.c Remove statistics from the TTY queues. 2010-02-07 15:42:15 +00:00
tty_outq.c Remove statistics from the TTY queues. 2010-02-07 15:42:15 +00:00
tty_pts.c Do not leak master pty or ptmx vnode. 2010-04-08 08:58:18 +00:00
tty_tty.c
tty_ttydisc.c
tty.c Make TIOCSTI work again. 2010-01-04 20:59:52 +00:00
uipc_accf.c (S)LIST_HEAD_INITIALIZER takes a (S)LIST_HEAD as an argument. 2009-12-28 22:56:30 +00:00
uipc_cow.c
uipc_debug.c
uipc_domain.c
uipc_mbuf2.c
uipc_mbuf.c
uipc_mqueue.c Rename st_*timespec fields to st_*tim for POSIX 2008 compliance. 2010-03-28 13:13:22 +00:00
uipc_sem.c Rename st_*timespec fields to st_*tim for POSIX 2008 compliance. 2010-03-28 13:13:22 +00:00
uipc_shm.c Rename st_*timespec fields to st_*tim for POSIX 2008 compliance. 2010-03-28 13:13:22 +00:00
uipc_sockbuf.c
uipc_socket.c Provide groundwork for 32-bit binary compatibility on non-x86 platforms, 2010-03-11 14:49:06 +00:00
uipc_syscalls.c Properly handle compat32 calls to sctp generic sendmsd/recvmsg functions that 2010-03-19 10:46:54 +00:00
uipc_usrreq.c
vfs_acl.c Add change that was somehow missed in r192586. It could manifest by 2009-12-03 13:29:24 +00:00
vfs_aio.c Convert aio syscall registration to SYSCALL_INIT_HELPER. 2010-03-19 11:11:34 +00:00
vfs_bio.c - Merge soft-updates journaling from projects/suj/head into head. This 2010-04-24 07:05:35 +00:00
vfs_cache.c The cache_enter(9) function shall not be called for doomed dvp. 2010-04-20 10:19:27 +00:00
vfs_cluster.c
vfs_default.c Supply default implementation of VOP_RENAME() that does neccessary 2010-04-02 14:03:43 +00:00
vfs_export.c
vfs_extattr.c
vfs_hash.c
vfs_init.c
vfs_lookup.c Support only LOOKUP operation for "/" in relookup() because lookup() 2010-03-26 11:33:12 +00:00
vfs_mount.c - Reduce scope of vnode lock. vfs_mount_alloc() doesn't need vnode to be 2010-02-18 22:22:45 +00:00
vfs_subr.c - Merge soft-updates journaling from projects/suj/head into head. This 2010-04-24 07:05:35 +00:00
vfs_syscalls.c Handle a case in kern_openat() when vn_open() change file type from 2010-04-13 08:52:20 +00:00
vfs_vnops.c vn_stat: take into account va_blocksize when setting st_blksize 2010-04-03 08:39:00 +00:00
vnode_if.src