d/freebsd-dev
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
a00f731551
freebsd-dev/sys/kern
History
Bruce Evans e2f03b0df0 Speed up ttnread() in the !(ICANON | ISIG) case by copying to user space 
through a temporary buffer instead of one character at a time.  The old
method takes about 6 usec/char on a 486DX2/66.  This is larger than than
the combined interrupt and PIO overhead for a 16550!

This change was first implemented in 1.1.5.  It was rewritten for 2.1.
The clist access functions allow a simpler implementation at some cost
in correctness and speed.  There needs to be an ungetc() function to
recover from EFAULT, and it wastes time to copy through a temporary
buffer.

Don't snoop on single characters that weren't read due to EFAULT.
Rewrite a snoop comment in my approximation to English.

Undo bogus exportation of ttnread().
1995-04-15 21:04:58 +00:00
..
imgact_aout.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
imgact_gzip.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +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 Changes to make FreeBSD use a CDROM as rootdev, for installation purposes. 1995-04-10 07:44:31 +00:00
init_sysent.c Added a third "flags" argument to msync() ...as other systems have. 1995-03-25 16:52:24 +00:00
kern_acct.c All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
kern_clock.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_descrip.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-28 07:58:53 +00:00
kern_devconf.c Actually copy the class field over from the kernel to the user structure. 1995-04-13 15:33:14 +00:00
kern_exec.c Use 'p' rather than 'curproc' when appropriate. 1995-03-25 01:34:21 +00:00
kern_exit.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_fork.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_ktrace.c All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
kern_lkm.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_lockf.c Changed some variable names in lf_addblock to make the code both 1994-10-25 11:27:51 +00:00
kern_malloc.c Removed redundant newlines that were in some panic strings. 1995-03-19 14:29:26 +00:00
kern_ntptime.c Add vm/vm.h for complete sysctl type. 1994-09-19 17:39:21 +00:00
kern_physio.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_proc.c Cosmetics. related to getting prototypes into view. 1994-10-10 01:00:49 +00:00
kern_prot.c Added ifdef COMPAT_IBCS2 around setre[ug]id. 1994-10-13 20:59:49 +00:00
kern_resource.c Implement maxprocperuid and maxfilesperproc. They are tunable 1995-02-20 19:42:42 +00:00
kern_sig.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_subr.c Added a few more entries to the list of prime numbers. 1995-04-09 01:19:25 +00:00
kern_synch.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_sysctl.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_tc.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_time.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_timeout.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
kern_xxx.c Implemented a "TEXT_SET" called 'cleanup_set' which will be called before 1994-12-04 19:58:43 +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 Fix cblock starvation bugs by reserving enough cblocks for minimal 1994-11-26 19:24:13 +00:00
subr_disklabel.c Woops, add back that #define...it's used later in the file. 1995-03-18 07:06:51 +00:00
subr_diskmbr.c Add more compatibility cruft: 1995-03-25 12:07:31 +00:00
subr_diskslice.c Don't warn about missing labels for non-BSD slices. 1995-03-04 11:42:27 +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 All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
subr_param.c Implement maxprocperuid and maxfilesperproc. They are tunable 1995-02-20 19:42:42 +00:00
subr_prf.c Implement a simple hook (or hack?) to allow graphics device console 1995-04-08 21:32:11 +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 Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
subr_rmap.c Added $Id$ 1994-08-02 07:55:43 +00:00
subr_trap.c Added a new version of trap_pfault() that disallows kernel page faults 1995-03-21 07:16:12 +00:00
subr_xxx.c Added $Id$ 1994-08-02 07:55:43 +00:00
sys_generic.c Backed out previous change - it reduces performance. (oops). 1995-04-13 18:24:33 +00:00
sys_process.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
sys_socket.c All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
syscalls.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
syscalls.master Added a third "flags" argument to msync() ...as other systems have. 1995-03-25 16:52:24 +00:00
sysv_ipc.c Added SYSV ipcs. 1994-09-13 14:47:38 +00:00
sysv_msg.c All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
sysv_sem.c Use tsleep() rather than sleep so that 'ps' is more informative about 1994-10-06 21:07:04 +00:00
sysv_shm.c Use of vm_allocate() and vm_deallocate() has been deprecated. 1995-02-20 22:23:31 +00:00
tty_compat.c Extract "set" family functions to separate module, needed for 1995-04-11 17:54:25 +00:00
tty_conf.c Set it so you can add and remove line disciplines without replicating 1995-03-21 11:24:05 +00:00
tty_cons.c Implement a simple hook (or hack?) to allow graphics device console 1995-04-08 21:32:11 +00:00
tty_pty.c Call ptsstop in ptsclose instead of ptcwakeup 1995-04-10 01:45:43 +00:00
tty_snoop.c same 1995-02-27 19:47:53 +00:00
tty_subr.c Fix cblock starvation bugs by reserving enough cblocks for minimal 1994-11-26 19:24:13 +00:00
tty_tb.c Added $Id$ 1994-08-02 07:55:43 +00:00
tty_tty.c don't allow ctty to be set to ctty - infinite kernel recursion 1994-12-04 01:46:13 +00:00
tty.c Speed up ttnread() in the !(ICANON | ISIG) case by copying to user space 1995-04-15 21:04:58 +00:00
uipc_domain.c Submitted by: Wolfgang Stanglmeier <wolf@dentaro.GUN.de> 1995-01-05 19:51:51 +00:00
uipc_mbuf.c Special cased the handling of mb_map in the M_WAITOK case. kmem_malloc() 1995-03-15 07:52:06 +00:00
uipc_proto.c Added $Id$ 1994-08-02 07:55:43 +00:00
uipc_sockbuf.c All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
uipc_socket2.c All of this is cosmetic. prototypes, #includes, printfs and so on. Makes 1994-10-02 17:35:40 +00:00
uipc_socket.c getsockopt(s, SOL_SOCKET, SO_SNDTIMEO, ...) would construct the returned 1995-02-16 01:07:43 +00:00
uipc_syscalls.c Add and move declarations to fix all of the warnings from `gcc -Wimplicit' 1995-03-16 18:17:34 +00:00
uipc_usrreq.c Fixed bug caused by attempting a connect with a null 'nam'. 1995-02-15 11:30:35 +00:00
vfs_bio.c Changes from John Dyson and myself: 1995-04-09 06:02:46 +00:00
vfs_cache.c Fixed serious off by one bug I introduced that will likely cause the 1995-04-15 00:49:35 +00:00
vfs_cluster.c Check for case of blkno already known to avoid unnecessary VOP_BMAP's. 1995-04-04 02:10:17 +00:00
vfs_conf.c Make a kernel sans FFS possible. 1994-11-12 01:47:43 +00:00
vfs_export.c Changes from John Dyson and myself: 1995-04-09 06:02:46 +00:00
vfs_extattr.c Added a set of braces to make the compiler happy. 1995-03-29 11:54:02 +00:00
vfs_init.c Actually implement the functionality documented in sysctl.h for type CTL_FS. 1994-10-20 00:48:28 +00:00
vfs_lookup.c Use tsleep() rather than sleep so that 'ps' is more informative about 1994-10-06 21:07:04 +00:00
vfs_mount.c Make a kernel sans FFS possible. 1994-11-12 01:47:43 +00:00
vfs_subr.c Changes from John Dyson and myself: 1995-04-09 06:02:46 +00:00
vfs_syscalls.c Added a set of braces to make the compiler happy. 1995-03-29 11:54:02 +00:00
vfs_vnops.c Removed unnecessary call to vnode_pager_uncache(). We automatically clear 1995-03-19 12:08:03 +00:00
vnode_if.pl Added $Id$ 1994-08-02 07:55:43 +00:00
vnode_if.sh Added $Id$ 1994-08-02 07:55:43 +00:00
vnode_if.src Make NFS ask the filesystems for directory cookies instead of making them 1994-09-28 16:45:22 +00:00