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29f88f470e
freebsd-nq/sys/kern
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Poul-Henning Kamp 29f88f470e Comment out Kirks io-request priority hack until we can do this in a 
civilized way which doesn't cause grief.

The problem is that it is not generally safe to cast a "struct bio
*" to a "struct buf *".  Things like ccd, vinum, ata-raid and GEOM
constructs bio's which are not entrails of a struct buf.

Also, curthread may or may not have anything to do with the I/O request
at hand.

The correct solution can either be to tag struct bio's with a
priority derived from the requesting threads nice and have disksort
act on this field, this wouldn't address the "silly-seek syndrome"
where two equal processes bang the diskheads from one edge to the
other of the disk repeatedly.

Alternatively, and probably better: a sleep should be introduced
either at the time the I/O is requested or at the time it is completed
where we can be sure to sleep in the right thread.

The sleep also needs to be in constant timeunits, 1/hz can be practicaly
any sub-second size, at high HZ the current code practically doesn't
do anything.
2002-04-22 06:53:20 +00:00
..
bus_if.m Use protected names (_foo) to cutdown on boatloads of lint warnings. 2002-04-21 11:16:10 +00:00
clock_if.m Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
device_if.m
genassym.sh Allow one to specify the AWK used in the environment(commandline). 2002-02-11 03:54:30 +00:00
imgact_aout.c - Change fill_kinfo_proc() to require that the process is locked when it 2002-04-09 20:10:46 +00:00
imgact_elf.c Remove __P. 2002-03-19 21:25:46 +00:00
imgact_gzip.c Modernize my email address. 2002-03-25 13:52:45 +00:00
imgact_shell.c Return a more meaningful errno when the length of the interpreter 2001-11-28 03:26:58 +00:00
inflate.c Modernize my email address. 2002-03-25 13:52:45 +00:00
init_main.c Divorce proc0 and proc1 credentials earlier; while this isn't technically 2002-04-19 13:35:53 +00:00
init_sysent.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
kern_acct.c - Remove an early KSE diagnostic panic. The thread pointer here is always 2002-04-09 19:58:38 +00:00
kern_acl.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
kern_cap.c - Attempt to help declutter kern. sysctl by moving security out from 2002-01-16 06:55:30 +00:00
kern_clock.c Take the "tickadj" element out of struct clockinfo. Our adjtime(2) 2002-04-15 12:11:06 +00:00
kern_condvar.c Nuke CV_DEBUG in favour of INVARIANTS. 2002-03-30 03:52:52 +00:00
kern_conf.c Make the proposed name arg to dev_stdclone() const. 2002-03-10 10:50:05 +00:00
kern_descrip.c Push down Giant for setpgid(), setsid() and aio_daemon(). Giant protects only 2002-04-20 12:02:52 +00:00
kern_environment.c Avoid calling malloc() or free() while holding the 2002-04-17 17:51:10 +00:00
kern_event.c Remove references to vm_zone.h and switch over to the new uma API. 2002-03-20 04:09:59 +00:00
kern_exec.c When exec'ing a set[ug]id program, make sure that the stdio file descriptors 2002-04-19 00:45:29 +00:00
kern_exit.c - Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:04:21 +00:00
kern_fork.c Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:11:34 +00:00
kern_idle.c Pre-KSE/M3 commit. 2002-02-07 20:58:47 +00:00
kern_intr.c - Set the base priority of an ithread that has no handlers when we set its 2002-04-11 21:03:35 +00:00
kern_jail.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_kthread.c Fix a couple of style bugs introduced (or touched by) previous commit. 2002-02-07 23:06:26 +00:00
kern_ktr.c Remove a stale comment. 2002-04-06 08:44:04 +00:00
kern_ktrace.c Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:11:34 +00:00
kern_linker.c In linker_load_module(), check that rootdev != NODEV before calling 2002-04-10 01:14:45 +00:00
kern_lock.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_lockf.c Remove __P. 2002-03-19 21:25:46 +00:00
kern_malloc.c Finish adding support code for sysctl kern.mprof. This dumps some malloc 2002-04-15 05:24:01 +00:00
kern_mib.c - Add a mutex to lock the global securelevel value. 2002-04-02 17:43:17 +00:00
kern_module.c - Lock down the ``module'' structure by adding an SX lock that is used by 2002-03-18 07:45:30 +00:00
kern_mtxpool.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_mutex.c Change mtx_init() to now take an extra argument. The third argument is 2002-04-04 20:52:27 +00:00
kern_ntptime.c suser is Giant safe, so optimize a pointless case. 2002-04-19 09:20:13 +00:00
kern_physio.c
kern_poll.c Make the DEVICE_POLLING code compile with -Werror and in LINT 2002-03-09 08:02:52 +00:00
kern_proc.c Push down Giant for setpgid(), setsid() and aio_daemon(). Giant protects only 2002-04-20 12:02:52 +00:00
kern_prot.c Push down Giant for setpgid(), setsid() and aio_daemon(). Giant protects only 2002-04-20 12:02:52 +00:00
kern_random.c Load the current timecounter into tc. The timecounter global can change 2002-02-18 19:49:30 +00:00
kern_resource.c Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:11:34 +00:00
kern_sema.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_shutdown.c Put back dumppcb, but this time we put a comment to tell what it is for. 2002-04-08 06:59:13 +00:00
kern_sig.c Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:11:34 +00:00
kern_subr.c In a threaded world, differnt priorirites become properties of 2002-02-11 20:37:54 +00:00
kern_switch.c Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter() 2002-04-01 23:51:23 +00:00
kern_sx.c Set the lock type equal to the lock name for now as all of the current 2002-04-04 20:49:35 +00:00
kern_synch.c Remove __P. 2002-03-19 21:25:46 +00:00
kern_syscalls.c - Lock down the ``module'' structure by adding an SX lock that is used by 2002-03-18 07:45:30 +00:00
kern_sysctl.c Update comment regarding the locking of the sysctl tree. 2002-04-02 05:50:07 +00:00
kern_tc.c Improve the implementation of adjtime(2). 2002-04-15 12:23:11 +00:00
kern_time.c Improve the implementation of adjtime(2). 2002-04-15 12:23:11 +00:00
kern_timeout.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
kern_xxx.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
ksched.c In a threaded world, differnt priorirites become properties of 2002-02-11 20:37:54 +00:00
link_aout.c Simple p_ucred -> td_ucred changes to start using the per-thread ucred 2002-02-27 18:32:23 +00:00
link_elf_obj.c Add function link_elf_get_gp(), specific to ia64 for now, to get 2002-04-21 21:08:30 +00:00
link_elf.c Add function link_elf_get_gp(), specific to ia64 for now, to get 2002-04-21 21:08:30 +00:00
linker_if.m Add the sysctl "kern.function_list", which currently exports all 2001-10-30 15:21:45 +00:00
Make.tags.inc Don't hardcode /sys when making tags, instead use ${.CURDIR}/.. this 2002-02-27 10:07:15 +00:00
Makefile Don't generate <sys/syscalls-hide.h> it has never had any users anywhere in 2001-10-13 09:17:49 +00:00
makeobjops.pl Switch warnings and strict back on again in a way that's compatible 2001-11-16 02:02:42 +00:00
makesyscalls.sh don't generate files with __P. 2002-03-19 20:48:32 +00:00
md4c.c Import kernel part of SMB/CIFS requester. 2001-04-10 07:59:06 +00:00
md5c.c
p1003_1b.c Pre-KSE/M3 commit. 2002-02-07 20:58:47 +00:00
posix4_mib.c
subr_acl_posix1e.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
subr_autoconf.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_blist.c With Alfred's permission, remove vm_mtx in favor of a fine-grained approach 2001-07-04 16:20:28 +00:00
subr_bus.c Add resource_list_add_next() which returns the RID for the resource added. 2002-03-29 06:42:54 +00:00
subr_clist.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_clock.c Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
subr_devstat.c GC: BIO_ORDERED, various infrastructure dealing with BIO_ORDERED. 2002-02-22 09:26:35 +00:00
subr_disk.c Implement DIOCGFRONTSTUFF ioctl which reports how many bytes from the start 2002-04-09 15:43:32 +00:00
subr_disklabel.c Comment out Kirks io-request priority hack until we can do this in a 2002-04-22 06:53:20 +00:00
subr_diskmbr.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_diskslice.c Move generic disk ioctls from <sys/disklabel.h> to <sys/disk.h>. 2002-04-08 09:20:07 +00:00
subr_eventhandler.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_hints.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
subr_kobj.c Convert more malloc+bzero to malloc+M_ZERO. 2000-12-08 21:51:06 +00:00
subr_log.c Use the passed in thread to selrecord() instead of curthread. 2001-09-21 22:46:54 +00:00
subr_mbuf.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_mchain.c Add support for iovcnt greater than 1. This should resolve problems 2002-02-21 16:23:38 +00:00
subr_module.c Preceed/preceeding are not english words. Use precede and preceding. 2001-02-18 10:43:53 +00:00
subr_param.c Improve the implementation of adjtime(2). 2002-04-15 12:23:11 +00:00
subr_pcpu.c Add a per-cpu variable, cpumask, the preshifted equivalent of 1 << cpuid. 2002-01-05 09:35:50 +00:00
subr_power.c Add generalized power profile code. 2002-03-04 18:46:13 +00:00
subr_prf.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
subr_prof.c Remove __P. 2002-03-19 21:25:46 +00:00
subr_rman.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_rtc.c Add a generic implementation of inittodr() and resettodr(), as well as 2002-04-04 23:39:10 +00:00
subr_sbuf.c Fix warnings on gcc-3.1+ where __func__ is a const char * instead of a 2002-03-19 10:56:46 +00:00
subr_scanf.c
subr_smp.c Updated a doubly stale comment about signotify(). Fixed a nearby long line. 2002-04-05 10:00:37 +00:00
subr_taskqueue.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
subr_trap.c Moved signal handling and rescheduling from userret() to ast() so that 2002-04-04 17:49:48 +00:00
subr_turnstile.c Change mtx_init() to now take an extra argument. The third argument is 2002-04-04 20:52:27 +00:00
subr_witness.c - Merge the pgrpsess_lock and proctree_lock sx locks into one proctree_lock 2002-04-16 17:03:05 +00:00
subr_xxx.c Here follows the new kernel dumping infrastructure. 2002-03-31 22:37:00 +00:00
sys_generic.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
sys_pipe.c Use pmap_extract() instead of pmap_kextract() to retrieve the physical 2002-04-13 20:09:06 +00:00
sys_process.c GCC 3.x WARNS: Add a break to the default case. 2002-04-20 21:56:42 +00:00
sys_socket.c Giant pushdown for read/write/pread/pwrite syscalls. 2002-03-15 08:03:46 +00:00
syscalls.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
syscalls.master Add an entry for the kenv(2) syscall (code to follow). 2002-04-17 13:05:13 +00:00
sysv_ipc.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
sysv_msg.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
sysv_sem.c Remove __P. 2002-03-19 21:25:46 +00:00
sysv_shm.c Remove __P. 2002-03-19 21:25:46 +00:00
tty_compat.c Fixed some style bugs in the removal of __P(()). The main ones were 2002-03-24 05:09:11 +00:00
tty_conf.c KSE Milestone 2 2001-09-12 08:38:13 +00:00
tty_cons.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
tty_pty.c - Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:09:22 +00:00
tty_subr.c Remove __P. 2002-03-19 21:25:46 +00:00
tty_tty.c Remove __P. 2002-03-19 21:25:46 +00:00
tty.c - Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:09:22 +00:00
uipc_accf.c Revert the last bits of my bogus move of NMBCLUSTERS 2001-06-01 21:47:34 +00:00
uipc_domain.c Add calls to uma_zone_set_max() to restore previously enforced limits. 2002-03-20 05:30:58 +00:00
uipc_mbuf2.c just merged cosmetic changes from KAME to ease sync between KAME and FreeBSD. 2002-04-19 04:46:24 +00:00
uipc_mbuf.c Fix corner case where m_len was not being initialized. 2002-04-12 00:01:50 +00:00
uipc_proto.c Implement a LOCAL_PEERCRED socket option which returns a 2001-08-17 22:01:18 +00:00
uipc_sockbuf.c Backout part of my previous commit; I was wrong about vm_zone's handling of 2002-03-20 04:39:32 +00:00
uipc_socket2.c Backout part of my previous commit; I was wrong about vm_zone's handling of 2002-03-20 04:39:32 +00:00
uipc_socket.c There's only one socket zone so we don't need to remember it 2002-04-08 03:04:22 +00:00
uipc_syscalls.c In sendfile(), use the vn_rdwr() helper function, rather than manually 2002-04-19 13:46:24 +00:00
uipc_usrreq.c Fixed some style bugs in the removal of __P(()). The main ones were 2002-03-24 05:09:11 +00:00
vfs_acl.c Change the suser() API to take advantage of td_ucred as well as do a 2002-04-01 21:31:13 +00:00
vfs_aio.c Push down Giant for setpgid(), setsid() and aio_daemon(). Giant protects only 2002-04-20 12:02:52 +00:00
vfs_bio.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
vfs_cache.c Turn #ifdef LOOKUP_SHARED into #ifndef LOOKUP_EXCLUSIVE to enable this 2002-04-09 05:14:17 +00:00
vfs_cluster.c Remove __P. 2002-03-19 21:25:46 +00:00
vfs_conf.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
vfs_default.c Remove references to vm_zone.h and switch over to the new uma API. 2002-03-20 04:09:59 +00:00
vfs_export.c Fixed some style bugs in the removal of __P(()). The main ones were 2002-03-24 05:09:11 +00:00
vfs_extattr.c Improve style consistency of vfs_syscalls.c by converting the style used 2002-04-20 01:37:08 +00:00
vfs_init.c Commit work-around for panics when mounting FS's that are auto-loaded as 2002-03-25 21:30:50 +00:00
vfs_lookup.c Remove references to vm_zone.h and switch over to the new uma API. 2002-03-20 04:09:59 +00:00
vfs_mount.c Rework the kernel environment subsystem. We now convert the static 2002-04-17 13:06:36 +00:00
vfs_subr.c Change callers of mtx_init() to pass in an appropriate lock type name. In 2002-04-04 21:03:38 +00:00
vfs_syscalls.c Improve style consistency of vfs_syscalls.c by converting the style used 2002-04-20 01:37:08 +00:00
vfs_vnops.c Lock proctree_lock instead of pgrpsess_lock. 2002-04-16 17:11:34 +00:00
vnode_if.pl Throw the $FreeBSD$s back in, properly escaping them. 2002-01-04 05:27:47 +00:00
vnode_if.src Introduce the new 64-bit size disk block, daddr64_t. Change 2002-03-15 18:49:47 +00:00