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f3b37f91c1
freebsd-skq/sys/kern
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Bruce Evans f3b37f91c1 Improve input flow control. 
Use input buffer watermarks of TTYHOG-512 (high) and (high)*7/8
(low) instead of TTYHOG/2 (high) and TTYHOG/5 (low) to agree with
some drivers.  512 is magic and some things depended on TTYHOG/2
>= TTYHOG-512 to work; now they depend on the 512 magic not changing
and TTYHOG-512 being significantly larger than 0.  This should be
handled in ttsetwater().

Separate the decision about whether to do input flow control from
doing it.  ttyblock() now just starts input flow control (hardware
and/or software) and there is a new function ttyunblock() to stop
it.  The decisions are the same except for the watermark changes
and allowing for input expansion for PARMRK.

When flushing input, try harder at first to send a start character
if required, but give up if the first attempt fails.

cy.c, rc.c, sio.c:
Simplify: let ttyinput() handle input flow control if it is not
being bypassed.  Use ttyblock() to start flow control otherwise.

rc.c:
Use same input flow control test as elsewhere: test in a more
efficient order and start flow control at >= highwater instead of
at > highwater.
1995-07-31 18:29:51 +00:00
..
imgact_aout.c Merge RELENG_2_0_5 into HEAD 1995-06-11 19:33:05 +00:00
imgact_gzip.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
imgact_shell.c While in the real world, I had a bad case of being swapped out for a lot of 1994-09-25 19:34:02 +00:00
inflate.c Changes needed for kzip to work. 1995-04-15 06:54:13 +00:00
init_main.c NFS diskless operation was broken because swapdev_vp wasn't initialized. 1995-05-19 03:27:08 +00:00
init_sysent.c Make setreuid/setregid active syscalls 1995-04-23 12:22:06 +00:00
kern_acct.c Use the same method to determine the time that the process 1995-07-23 23:02:20 +00:00
kern_clock.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
kern_descrip.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_devconf.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_exec.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_exit.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_fork.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_ktrace.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_lkm.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_lockf.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_malloc.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_ntptime.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_physio.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_proc.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_prot.c Optimized and simplified version of setreuid/gid 1995-06-15 22:32:03 +00:00
kern_resource.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_sig.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_subr.c Improved hashinit panic strings. 1995-05-08 23:11:12 +00:00
kern_synch.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
kern_sysctl.c Fix the sysctl string routines to return as much of the 1995-07-31 10:07:31 +00:00
kern_tc.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
kern_time.c Killed "TIMEZONE" and "DST" options. They have been forced to 0 by config 1995-06-29 07:07:00 +00:00
kern_timeout.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
kern_xxx.c Rewrote shutdown_nice() to fix the init-not-yet-started panic(). 1995-07-30 17:10:36 +00:00
Make.tags.inc Added $Id$ 1994-08-02 07:55:43 +00:00
Makefile Added namespace information for future pollution-control measures. 1994-09-13 00:48:26 +00:00
makesyscalls.sh Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
md5c.c Clean a bunch of -Wall warnings. 1995-02-24 08:51:34 +00:00
subr_autoconf.c Added $Id$ 1994-08-02 07:55:43 +00:00
subr_clist.c Optimize the zeroing of quotes. b_to_q() was always taking about 20% of 1995-07-11 19:39:54 +00:00
subr_disklabel.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
subr_diskmbr.c Make the "information" slice printfs if(bootverbose). 1995-05-18 22:45:35 +00:00
subr_diskslice.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
subr_dkbad.c subr_diskslice.c implements everything related to slices and labels except 1994-12-12 00:20:34 +00:00
subr_log.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
subr_param.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
subr_prf.c Convert %p to 0x%x instead of to 0x%8x. The latter gives blank padding 1995-06-14 07:55:07 +00:00
subr_prof.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
subr_rlist.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
subr_rmap.c Added $Id$ 1994-08-02 07:55:43 +00:00
subr_trap.c Fix a bug in my disabled version of trap_pfault()...curpcb may be NULL even 1995-07-30 17:49:24 +00:00
subr_xxx.c Added $Id$ 1994-08-02 07:55:43 +00:00
sys_generic.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
sys_process.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
sys_socket.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
syscalls.c Make setreuid/setregid active syscalls 1995-04-23 12:22:06 +00:00
syscalls.master Make setreuid/setregid active syscalls 1995-04-23 12:22:06 +00:00
sysv_ipc.c Added SYSV ipcs. 1994-09-13 14:47:38 +00:00
sysv_msg.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
sysv_sem.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
sysv_shm.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
tty_compat.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
tty_conf.c Obtained from: partly from ancient patches by ache and me via 1.1.5 1995-07-29 13:40:13 +00:00
tty_cons.c Partially fix `sysctl machdep.console_device'. The fix will be complete 1995-06-26 07:39:52 +00:00
tty_pty.c Obtained from: partly from ancient patches of mine via 1.1.5 1995-07-22 16:45:22 +00:00
tty_snoop.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
tty_subr.c Optimize the zeroing of quotes. b_to_q() was always taking about 20% of 1995-07-11 19:39:54 +00:00
tty_tb.c Added $Id$ 1994-08-02 07:55:43 +00:00
tty_tty.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
tty.c Improve input flow control. 1995-07-31 18:29:51 +00:00
uipc_domain.c Delete two debugging printfs that mistakenly crept in. 1995-05-11 00:16:44 +00:00
uipc_mbuf.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
uipc_proto.c Make networking domains drop-ins, through the magic of GNU ld. (Some day, 1995-05-11 00:13:26 +00:00
uipc_sockbuf.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
uipc_socket2.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
uipc_socket.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
uipc_syscalls.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
uipc_usrreq.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
vfs_bio.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
vfs_cache.c Eliminate sloppy common-style declarations. There should be none left for 1995-07-29 11:44:31 +00:00
vfs_cluster.c Don't include vm_pageout.h. 1995-06-28 12:31:47 +00:00
vfs_conf.c Make a kernel sans FFS possible. 1994-11-12 01:47:43 +00:00
vfs_export.c NOTE: libkvm, w, ps, 'top', and any other utility which depends on struct 1995-07-13 08:48:48 +00:00
vfs_extattr.c Ignore trailing slashes in pathnames that "refer to a directory", 1995-07-31 00:35:58 +00:00
vfs_init.c Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
vfs_lookup.c Ignore trailing slashes in pathnames that "refer to a directory", 1995-07-31 00:35:58 +00:00
vfs_mount.c Make a kernel sans FFS possible. 1994-11-12 01:47:43 +00:00
vfs_subr.c NOTE: libkvm, w, ps, 'top', and any other utility which depends on struct 1995-07-13 08:48:48 +00:00
vfs_syscalls.c Ignore trailing slashes in pathnames that "refer to a directory", 1995-07-31 00:35:58 +00:00
vfs_vnops.c vnode_pager_alloc() never returns NULL, so don't check for it. 1995-07-20 09:43:12 +00:00
vnode_if.pl The generated VCALL always uses the first vp which in the case of /link/ 1995-07-07 13:41:28 +00:00
vnode_if.sh The generated VCALL always uses the first vp which in the case of /link/ 1995-07-07 13:41:28 +00:00
vnode_if.src The generated VCALL always uses the first vp which in the case of /link/ 1995-07-07 13:41:28 +00:00