ken 471eab1868 Zero copy send and receive fixes: ...

- On receive, vm_map_lookup() needs to trigger the creation of a shadow
  object.  To make that happen, call vm_map_lookup() with PROT_WRITE
  instead of PROT_READ in vm_pgmoveco().

- On send, a shadow object will be created by the vm_map_lookup() in
  vm_fault(), but vm_page_cowfault() will delete the original page from
  the backing object rather than simply letting the legacy COW mechanism
  take over.  In other words, the new page should be added to the shadow
  object rather than replacing the old page in the backing object.  (i.e.
  vm_page_cowfault() should not be called in this case.)  We accomplish
  this by making sure fs.object == fs.first_object before calling
  vm_page_cowfault() in vm_fault().

Submitted by:	gallatin, alc
Tested by:	ken

2003-03-08 06:58:18 +00:00

..

bus_if.m

…

clock_if.m

…

device_if.m

…

genassym.sh

…

imgact_aout.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

imgact_elf32.c

Improve the way that an elf image activator for an alternate word size is

2003-01-04 22:07:48 +00:00

imgact_elf64.c

Improve the way that an elf image activator for an alternate word size is

2003-01-04 22:07:48 +00:00

imgact_elf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

imgact_gzip.c

Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,

2003-01-01 18:49:04 +00:00

imgact_shell.c

Correct typos, mostly s/ a / an / where appropriate. Some whitespace cleanup,

2003-01-01 18:49:04 +00:00

inflate.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

init_main.c

Use the proc lock to protect p_realtimer instead of Giant, and obtain

2003-02-17 10:03:02 +00:00

init_sysent.c

Add a timeout parameter to kse_release.

2003-02-20 08:18:15 +00:00

kern_acct.c

Remove the PL_SHAREMOD flag from struct plimit, which could have been

2003-02-20 04:18:42 +00:00

kern_acl.c

Bow to the whining masses and change a union back into void *. Retain

2003-01-13 00:33:17 +00:00

kern_alq.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_clock.c

Update netisr handling; Each SWI now registers its queue, and all queue

2003-03-04 23:19:55 +00:00

kern_condvar.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

kern_conf.c

Gigacommit to improve device-driver source compatibility between

2003-03-03 12:15:54 +00:00

kern_context.c

Add getcontext, setcontext, and swapcontext as system calls.

2002-11-16 06:35:53 +00:00

kern_descrip.c

Gigacommit to improve device-driver source compatibility between

2003-03-03 12:15:54 +00:00

kern_environment.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_event.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_exec.c

Change the process flags P_KSES to be P_THREADED.

2003-02-27 02:05:19 +00:00

kern_exit.c

Change the process flags P_KSES to be P_THREADED.

2003-02-27 02:05:19 +00:00

kern_fork.c

Change the process flags P_KSES to be P_THREADED.

2003-02-27 02:05:19 +00:00

kern_idle.c

…

kern_intr.c

Add a WITNESS_WARN() call to verify that we hold no locks after running

2003-03-04 21:01:42 +00:00

kern_jail.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_kse.c

Lock sched_lock before modifying td_flags.

2003-03-08 04:09:04 +00:00

kern_kthread.c

…

kern_ktr.c

Add a /a modifier to the show ktr ddb command, which prints the whole trace

2003-02-22 23:30:37 +00:00

kern_ktrace.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_linker.c

FreeBSD 5.0 has stopped shipping /modules 2.5 years ago. Catch

2003-03-03 22:53:35 +00:00

kern_lock.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

kern_lockf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_mac.c

Instrument sysarch() MD privileged I/O access interfaces with a MAC

2003-03-06 04:47:47 +00:00

kern_malloc.c

o Allow "buckets" in mb_alloc to be differently sized (according to

2003-02-20 04:26:58 +00:00

kern_mib.c

- Provide backwards compatibility for kern.fallback_elf_brand.

2003-01-05 03:48:14 +00:00

kern_module.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_mtxpool.c

…

kern_mutex.c

Remove safety belt: it is now ok to do a mtx_trylock() on a mutex you

2003-03-04 21:32:25 +00:00

kern_ntptime.c

Explicitly have the timecounter init happen after the cpu_initclocks is

2003-01-06 01:01:08 +00:00

kern_physio.c

Close the remaining user address mapping races for physical

2003-01-20 17:46:48 +00:00

kern_poll.c

Update netisr handling; Each SWI now registers its queue, and all queue

2003-03-04 23:19:55 +00:00

kern_proc.c

Change the process flags P_KSES to be P_THREADED.

2003-02-27 02:05:19 +00:00

kern_prot.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

kern_resource.c

Remove the PL_SHAREMOD flag from struct plimit, which could have been

2003-02-20 04:18:42 +00:00

kern_sema.c

…

kern_shutdown.c

style.

2003-02-14 12:44:48 +00:00

kern_sig.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

kern_subr.c

Zero copy send and receive fixes:

2003-03-08 06:58:18 +00:00

kern_switch.c

Change the process flags P_KSES to be P_THREADED.

2003-02-27 02:05:19 +00:00

kern_sx.c

…

kern_synch.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

kern_syscalls.c

…

kern_sysctl.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

kern_tc.c

Move timecounters notion of frequency to 64 bits.

2003-01-29 11:29:22 +00:00

kern_thread.c

Lock sched_lock before modifying td_flags.

2003-03-08 04:09:04 +00:00

kern_time.c

o fix ppsratecheck to interpret a maxpps of zero as "ignore everything"

2003-02-26 17:16:38 +00:00

kern_timeout.c

Under DIAGNOSTIC, only report expensive timeouts if they are more expensive

2003-02-01 10:06:40 +00:00

kern_uuid.c

SMP locking for ifnet list.

2002-12-22 05:35:03 +00:00

kern_xxx.c

…

ksched.c

Move a bunch of flags from the KSE to the thread.

2003-02-17 09:55:10 +00:00

link_elf_obj.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

link_elf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

linker_if.m

…

Make.tags.inc

Finish driving a stake through the heart of netns and the associated

2003-03-05 19:24:24 +00:00

Makefile

Finish driving a stake through the heart of netns and the associated

2003-03-05 19:24:24 +00:00

makesyscalls.sh

The syscall names are string constants, so make them consts.

2002-10-29 15:47:06 +00:00

md4c.c

…

md5c.c

…

p1003_1b.c

Use copyout to access user memory.

2003-01-07 20:10:04 +00:00

posix4_mib.c

Rework the sysconf(3) interaction with aio:

2002-11-17 04:15:34 +00:00

sched_4bsd.c

Change the process flags P_KSES to be P_THREADED.

2003-02-27 02:05:19 +00:00

sched_ule.c

- Create a function sched_interact_score() which decides on the

2003-03-04 02:45:59 +00:00

subr_acl_posix1e.c

Bow to the whining masses and change a union back into void *. Retain

2003-01-13 00:33:17 +00:00

subr_autoconf.c

…

subr_blist.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

subr_bus.c

Gigacommit to improve device-driver source compatibility between

2003-03-03 12:15:54 +00:00

subr_clist.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

subr_clock.c

Split the global timezone structure into two integer fields to

2003-02-03 19:49:35 +00:00

subr_devstat.c

…

subr_disk.c

Don't pick up a name from the dev_t if it is not there.

2003-03-03 11:14:36 +00:00

subr_eventhandler.c

…

subr_hints.c

…

subr_kobj.c

…

subr_log.c

Gigacommit to improve device-driver source compatibility between

2003-03-03 12:15:54 +00:00

subr_mbuf.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

subr_mchain.c

The "m = m->m_next" that was removed in the revision 1.12 was necessary

2003-02-19 10:12:42 +00:00

subr_module.c

…

subr_param.c

…

subr_pcpu.c

…

subr_power.c

…

subr_prf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

subr_prof.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

subr_rman.c

Implement rman_get_device

2003-02-12 07:00:59 +00:00

subr_rtc.c

Split the global timezone structure into two integer fields to

2003-02-03 19:49:35 +00:00

subr_sbuf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

subr_scanf.c

…

subr_smp.c

Move a bunch of flags from the KSE to the thread.

2003-02-17 09:55:10 +00:00

subr_taskqueue.c

Introduce a new taskqueue that runs completely free of Giant, and in

2003-02-26 03:15:42 +00:00

subr_trap.c

Replace calls to WITNESS_SLEEP() and witness_list() with equivalent calls

2003-03-04 21:03:05 +00:00

subr_turnstile.c

Remove safety belt: it is now ok to do a mtx_trylock() on a mutex you

2003-03-04 21:32:25 +00:00

subr_witness.c

Oops, fix the double faults people were seeing with the recent changes to

2003-03-06 17:25:06 +00:00

subr_xxx.c

Make nokqfilter() return the correct return value.

2003-03-03 16:24:47 +00:00

sys_generic.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

sys_pipe.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

sys_process.c

…

sys_socket.c

Remove duplicate includes.

2003-02-20 03:26:11 +00:00

syscalls.c

Add a timeout parameter to kse_release.

2003-02-20 08:18:15 +00:00

syscalls.master

Add a timeout parameter to kse_release.

2003-02-20 08:18:15 +00:00

sysv_ipc.c

It is possible for an active aio to prevent shared memory from being

2003-01-13 23:04:32 +00:00

sysv_msg.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

sysv_sem.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

sysv_shm.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

tty_compat.c

…

tty_conf.c

…

tty_cons.c

Make nokqfilter() return the correct return value.

2003-03-03 16:24:47 +00:00

tty_pty.c

Make TTYHOG tunable.

2003-03-05 08:16:29 +00:00

tty_subr.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

tty_tty.c

Gigacommit to improve device-driver source compatibility between

2003-03-03 12:15:54 +00:00

tty.c

Make TTYHOG tunable.

2003-03-05 08:16:29 +00:00

uipc_accf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

uipc_cow.c

…

uipc_domain.c

Fix a spelling error.

2003-03-07 22:47:32 +00:00

uipc_jumbo.c

Remove duplicate includes.

2003-02-20 03:26:11 +00:00

uipc_mbuf2.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

uipc_mbuf.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

uipc_proto.c

…

uipc_sem.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

uipc_sockbuf.c

Missing M_TRYWAIT from so_upcall third argument.

2003-02-21 22:23:40 +00:00

uipc_socket2.c

Missing M_TRYWAIT from so_upcall third argument.

2003-02-21 22:23:40 +00:00

uipc_socket.c

Clean up whitespace, s/register //, refrain from strong urge to ANSIfy.

2003-03-02 15:56:49 +00:00

uipc_syscalls.c

Remove GIANT_REQUIRED from sf_buf_free().

2003-03-06 04:48:19 +00:00

uipc_usrreq.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

vfs_acl.c

Bow to the whining masses and change a union back into void *. Retain

2003-01-13 00:33:17 +00:00

vfs_aio.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

vfs_bio.c

- Add a new 'flags' parameter to getblk().

2003-03-04 00:04:44 +00:00

vfs_cache.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

vfs_cluster.c

- Hold the buf lock while manipulating and inspecting its fields.

2003-03-04 21:35:28 +00:00

vfs_default.c

Respect any passed in external lockmgr flags such as LK_NOWAIT in the

2003-03-07 20:45:07 +00:00

vfs_export.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

vfs_extattr.c

Move the initialization of the vattr flags field in setfflags() to

2003-03-05 23:15:23 +00:00

vfs_init.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

vfs_lookup.c

Back out M_* changes, per decision of the TRB.

2003-02-19 05:47:46 +00:00

vfs_mount.c

Export the name of the device used to mount the root file system as

2003-02-22 05:01:12 +00:00

vfs_subr.c

Remove ENABLE_VFS_IOOPT. It is a long unfinished work-in-progress.

2003-03-06 03:41:02 +00:00

vfs_syscalls.c

Move the initialization of the vattr flags field in setfflags() to

2003-03-05 23:15:23 +00:00

vfs_vnops.c

Do not allow kqueues to be passed via unix domain sockets.

2003-02-15 06:04:55 +00:00

vnode_if.src

Temporarily introduce a new VOP_SPECSTRATEGY operation while I try

2003-01-04 22:10:36 +00:00