Matthew Dillon ac8f990bde This patch implements O_DIRECT about 80% of the way. It takes a patchset ... Tor created a while ago, removes the raw I/O piece (that has cache coherency problems), and adds a buffer cache / VM freeing piece. Essentially this patch causes O_DIRECT I/O to not be left in the cache, but does not prevent it from going through the cache, hence the 80%. For the last 20% we need a method by which the I/O can be issued directly to buffer supplied by the user process and bypass the buffer cache entirely, but still maintain cache coherency. I also have the code working under -stable but the changes made to sys/file.h may not be MFCable, so an MFC is not on the table yet. Submitted by: tegge, dillon		2001-05-24 07:22:27 +00:00
..
bus_if.m
device_if.m
genassym.sh
gensetdefs.pl	Generate useful error messages.	2001-04-13 09:37:25 +00:00
imgact_aout.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
imgact_elf.c	Lock the VM while twiddling the vmspace.	2001-05-23 22:05:08 +00:00
imgact_gzip.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
imgact_shell.c
inflate.c
init_main.c	- Lock the VM when initializing the vmspace for proc0.	2001-05-23 22:06:47 +00:00
init_sysent.c	Regen syscalls that were made mpsafe via vm_mtx	2001-05-19 01:37:12 +00:00
kern_acct.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_acl.c	o As part of the move to not maintaining copies of the vnode owning uid	2001-04-29 19:53:50 +00:00
kern_cap.c
kern_clock.c	Remove unneeded includes of sys/ipl.h and machine/ipl.h.	2001-05-15 23:22:29 +00:00
kern_condvar.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_conf.c	Call strlen() once instead of twice.	2001-04-14 21:33:58 +00:00
kern_descrip.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_environment.c
kern_event.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_exec.c	Axe unneeded spl()'s.	2001-05-21 18:30:50 +00:00
kern_exit.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
kern_fork.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
kern_idle.c	- Split out the support for per-CPU data from the SMP code. UP kernels	2001-05-10 17:45:49 +00:00
kern_intr.c	- Remove the global ithread_list_lock spin lock in favor of per-ithread	2001-05-17 22:43:26 +00:00
kern_jail.c
kern_kthread.c	Convert the allproc and proctree locks from lockmgr locks to sx locks.	2001-03-28 11:52:56 +00:00
kern_ktr.c	Switch from save/disable/restore_intr() to critical_enter/exit().	2001-03-28 03:06:10 +00:00
kern_ktrace.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_linker.c	o Actually extract version of interface and store it along with the name.	2001-03-22 08:58:45 +00:00
kern_lock.c	Instead of asserting that a mutex is not still locked after unlocking it,	2001-04-28 12:11:01 +00:00
kern_lockf.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_malloc.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_mib.c	Overhaul of the SMP code. Several portions of the SMP kernel support have	2001-04-27 19:28:25 +00:00
kern_module.c
kern_mutex.c	- Move state about lock objects out of struct lock_object and into a new	2001-05-04 17:15:16 +00:00
kern_ntptime.c	Update to the 2001-04-02 version of the nanokernel code from Dave Mills.	2001-04-16 13:05:05 +00:00
kern_physio.c
kern_proc.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_prot.c	o Modify access control checks in p_candebug() such that the policy is as	2001-05-17 21:48:44 +00:00
kern_random.c
kern_resource.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
kern_shutdown.c	Revert consequences of changes to mount.h, part 2.	2001-04-29 02:45:39 +00:00
kern_sig.c	- Remove unneeded include of sys/ipl.h.	2001-05-15 23:13:58 +00:00
kern_subr.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_switch.c	Catch up to header include changes:	2001-03-28 09:17:56 +00:00
kern_sx.c	- Move state about lock objects out of struct lock_object and into a new	2001-05-04 17:15:16 +00:00
kern_synch.c	Add in assertions to ensure that we always call msleep or mawait with	2001-05-23 19:38:26 +00:00
kern_syscalls.c
kern_sysctl.c	Add convenience function kernel_sysctlbyname() for kernel consumers,	2001-05-19 05:45:55 +00:00
kern_tc.c
kern_time.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
kern_timeout.c	Catch up to header include changes:	2001-03-28 09:17:56 +00:00
kern_xxx.c	This is kind of a hack, but it should work. Currently, world is broken	2001-03-24 04:40:49 +00:00
ksched.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
link_aout.c
link_elf_obj.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
link_elf.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
linker_if.m
Make.tags.inc	- FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file	2001-05-23 09:42:29 +00:00
Makefile	- FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file	2001-05-23 09:42:29 +00:00
makeobjops.pl	Use getopt instead of a home grown one	2001-04-07 20:51:24 +00:00
makesyscalls.sh
md4c.c	Import kernel part of SMB/CIFS requester.	2001-04-10 07:59:06 +00:00
md5c.c
p1003_1b.c	o First step in cleaning up authorization code for the posix4	2001-05-06 16:15:42 +00:00
posix4_mib.c
subr_acl_posix1e.c	o As part of the move to not maintaining copies of the vnode owning uid	2001-04-29 19:53:50 +00:00
subr_autoconf.c
subr_blist.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
subr_bus.c
subr_clist.c	Make cblock_alloc_cblocks() spell its own name	2001-03-27 10:21:26 +00:00
subr_devstat.c
subr_disk.c	Always initialize bio_resid from bio_bcount in the disk mini-layer so	2001-05-08 08:24:54 +00:00
subr_disklabel.c
subr_diskmbr.c
subr_diskslice.c
subr_eventhandler.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
subr_kobj.c
subr_log.c	syslogd gets kernel log messages only once every 30 seconds or	2001-05-23 19:02:50 +00:00
subr_mchain.c
subr_module.c
subr_param.c
subr_pcpu.c	- Split out the support for per-CPU data from the SMP code. UP kernels	2001-05-10 17:45:49 +00:00
subr_prf.c
subr_prof.c	Remove unneeded includes of sys/ipl.h and machine/ipl.h.	2001-05-15 23:22:29 +00:00
subr_rman.c
subr_sbuf.c	Rewrite of the CAM error recovery code.	2001-03-27 05:45:52 +00:00
subr_scanf.c
subr_smp.c	- Split out the support for per-CPU data from the SMP code. UP kernels	2001-05-10 17:45:49 +00:00
subr_taskqueue.c	remove include of ipl.h because it no longer exists	2001-05-16 02:52:06 +00:00
subr_trap.c	Don't acquire Giant just to call trap_fatal(), we are about to panic	2001-05-23 22:58:09 +00:00
subr_turnstile.c	- Move state about lock objects out of struct lock_object and into a new	2001-05-04 17:15:16 +00:00
subr_witness.c	- Don't panic on a try lock operation for a sleep lock if we hold a spin	2001-05-17 22:44:56 +00:00
subr_xxx.c
sys_generic.c	Back out scanning file descriptors with holding a process lock.	2001-05-15 10:19:57 +00:00
sys_pipe.c	aquire vm_mutex a little bit earlier to protect a pmap call.	2001-05-23 10:26:36 +00:00
sys_process.c	- FDESC, FIFO, NULL, PORTAL, PROC, UMAP and UNION file	2001-05-23 09:42:29 +00:00
sys_socket.c
syscalls.c	Regen syscalls that were made mpsafe via vm_mtx	2001-05-19 01:37:12 +00:00
syscalls.master	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
sysv_ipc.c
sysv_msg.c
sysv_sem.c
sysv_shm.c	Correct style bugs with regards to long lines and comments.	2001-05-23 23:38:05 +00:00
tty_compat.c
tty_conf.c
tty_cons.c	Send the remains (such as I have located) of "block major numbers" to	2001-03-26 12:41:29 +00:00
tty_pty.c	Send the remains (such as I have located) of "block major numbers" to	2001-03-26 12:41:29 +00:00
tty_snoop.c	Convert this driver to (ab?)use line disciplines to get the input it	2001-05-22 22:13:14 +00:00
tty_subr.c	Make cblock_alloc_cblocks() spell its own name	2001-03-27 10:21:26 +00:00
tty_tty.c	Support /dev/ctty again	2001-05-15 18:12:38 +00:00
tty.c	Unifdef DEV_SNP; snp(4) no longer requires these ugly hacks.	2001-05-22 22:16:18 +00:00
uipc_accf.c
uipc_domain.c
uipc_mbuf2.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
uipc_mbuf.c	Increment mbstat.m_mpfail, not mbstat.m_mcfail, when m_pullup() fails.	2001-05-23 20:44:54 +00:00
uipc_proto.c
uipc_sockbuf.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
uipc_socket2.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
uipc_socket.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
uipc_syscalls.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
uipc_usrreq.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
vfs_acl.c	o As part of the move to not maintaining copies of the vnode owning uid	2001-04-29 19:53:50 +00:00
vfs_aio.c	Check validity of signal callback requested via aio routines.	2001-04-18 22:18:39 +00:00
vfs_bio.c	This patch implements O_DIRECT about 80% of the way. It takes a patchset	2001-05-24 07:22:27 +00:00
vfs_cache.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
vfs_cluster.c	This patch implements O_DIRECT about 80% of the way. It takes a patchset	2001-05-24 07:22:27 +00:00
vfs_conf.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
vfs_default.c	Don't release the vm lock just to turn around and grab it again.	2001-05-23 19:51:12 +00:00
vfs_export.c	vfs_subr.c is getting rather fat. The underlying repocopy and this	2001-04-26 20:47:14 +00:00
vfs_extattr.c	Don't release Giant around vm_oject_page_clean() in fsync() as the pager	2001-05-23 22:55:13 +00:00
vfs_init.c	Revert consequences of changes to mount.h, part 2.	2001-04-29 02:45:39 +00:00
vfs_lookup.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
vfs_mount.c	Undo part of the tangle of having sys/lock.h and sys/mutex.h included in	2001-05-01 08:13:21 +00:00
vfs_subr.c	Introduce a global lock for the vm subsystem (vm_mtx).	2001-05-19 01:28:09 +00:00
vfs_syscalls.c	Don't release Giant around vm_oject_page_clean() in fsync() as the pager	2001-05-23 22:55:13 +00:00
vfs_vnops.c	This patch implements O_DIRECT about 80% of the way. It takes a patchset	2001-05-24 07:22:27 +00:00
vnode_if.pl	replace calls to non-existant bail() subroutine with calls to	2001-03-23 11:48:50 +00:00
vnode_if.src	VOP_BALLOC was never really a VOP in the first place, so convert it	2001-04-29 12:36:52 +00:00