Commit Graph

44 Commits

Author SHA1 Message Date
perry 4522c799a1 bzero->memset, bcopy->memcpy, bcmp->memcmp 1998-08-09 20:51:08 +00:00
fvdl 865838bfd7 Fix possible overflow problem in read size computation. 1998-06-21 22:18:16 +00:00
mrg d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW.
- remove unnecessary UVMHIST_DECL's.
1998-02-10 14:08:44 +00:00
mrg 1a8c7604f4 initial import of the new virtual memory system, UVM, into -current.
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the rest of the MI portion changes.

this will be KNF'd shortly.  :-)
1998-02-05 07:59:28 +00:00
fvdl 26a975b107 Move the EOF check after getting a block out of the if() that determines
whether we get it off the wire. An nfsiod might have been busy with
it, and finished while we were waiting for it in nfs_getcacheblk, so
we need to check for EOF again no matter what.
1997-11-23 13:52:24 +00:00
fvdl aac8e91164 Oops. Fix goof in previous change. 1997-10-23 14:12:14 +00:00
fvdl 6b89492d21 Just return immediately in nfs_bioread if we got an empty buffer because
of EOF on a directory.
1997-10-22 01:45:16 +00:00
thorpej 98bb00f98f Fix alignment problems. From Frank van der Linden <fvdl@NetBSD.ORG>. 1997-10-20 22:08:44 +00:00
fvdl 6cdaaab885 Only do readaheads when reading sequential blocks; check v_lastr to
achieve this. Improves performance for demand paging. From Chris Demetriou.
1997-10-19 20:27:32 +00:00
fvdl 1cf3a3db94 * Implement optional 32 <-> 64 bit directory cookie translation. This uses
the directory cache as translation table. See nfs_subs.c for comments.
  Makes the code a bit more complex to look at than I would have liked,
  but doesn't affect the speed of the default behavior.
* Optimize caching behavior a bit when buffers are invalidated.
* Save some RPCs in readdir operations by not bothering if there is
  a small amount left to do to fill the buffer. It'll be done in the
  next RPC with a larger chunk anyway. Wastes a bit of buffer space
  but is faster.
* Make n_vattr an allocated vattr struct. This avoids nfsnode bloat,
  and is friendlier to the malloc routines.
1997-10-19 01:46:15 +00:00
fvdl 7f7d814e67 * New directory entry caching system. Provides full caching of any
directory cookie that may be thrown back at us from userspace, up
  to a size limit. Fixes double entry problem.
* Split flags for internal and external use in the NFS mount structure.
* Fix some buffer structure fields that weren're being used correctly.
* Fix missing directory cache inval call in nfs_open.
* Limit on NFS_DIRBLKSIZ no longer needed, bumped to the more reasonable
  value of 8k.
* Various other things that I forget, all related to the dir caching
  somehow, though.
1997-10-10 01:53:17 +00:00
fvdl 43e1b9384f * Deal with servers that don't give complete FSINFO (like NT)
From Olaf Seibert <rhialto@polder.ubc.kun.nl> (PR 3687)
* Make an attempt to check the maximum filesize before attempting
  a write to the server, as write RPCs will typically happen
  asynchronously, and the process will not see the error.
  Fixes problems with unexpectly truncated files at 4G
* Pass up errors in nfs_writerpc correctly
1997-07-17 23:54:27 +00:00
drochner 8c0a9bab00 Don't cast 64bit (off_t) file sizes to vm_offset_t (32bit on many
architectures), truncate them intelligently instead.
The truncation is done centralized in vnode_pager.c.
This prevents from wrap-over effects when parts of large (>2^32 byte) files
are mmapped.
Don't allow to mmap above the numerical range of vm_offset_t.
This is considered a temporary solution until the vm system handles the
object sizes/offsets more cleanly.
1997-07-04 20:22:09 +00:00
fvdl b9f22ef8f3 Only wake up one nfsiod when there is an async write to do. (from FreeBSD). 1997-04-20 16:24:44 +00:00
thorpej aa25de69d1 NFS performance improvement from Doug Rabson/FreeBSD:
Improve the queuing algorithms used by NFS' asynchronous i/o.  The
existing mechanism uses a global queue for some buffers and the
vp->b_dirtyblkhd queue for others.  This turns sequential writes into
randomly ordered writes to the server, affecting both read and write
performance.  The existing mechanism also copes badly with hung
servers, tending to block accesses to other servers when all the iods
are waiting for a hung server.

The new mechanism uses a queue for each mount point.  All asynchronous
i/o goes through this queue which preserves the ordering of requests.
A simple mechanism ensures that the iods are shared out fairly between
active mount points.

Reviewed/integrated/approved by Frank van der Linden <fvdl@netbsd.org>
1996-12-02 22:55:39 +00:00
christos bcf4552fb1 revert kprintf changes 1996-10-13 01:39:03 +00:00
christos 117a51c5a5 printf -> kprintf, sprintf -> ksprintf 1996-10-10 23:31:17 +00:00
fvdl 1e8262b3d6 Don't mistake a non-async block that needs to be commited for an
interrupted write.
1996-07-02 16:03:47 +00:00
fvdl 2847784948 * Make mounts with symlinks work (needed for direct mounts with amd). PR #1917
* Never change the NQNFS flag and/or version when just doing an update mount.
  Fixes a problem that made diskless booting impossible under some
  circumstances.
1996-05-23 22:47:27 +00:00
fvdl 52d04f3b3f Make sure to clear B_NEEDCOMMIT in the right spot. Fix 'officially blessed'
by Rick Macklem. Fixes PR kern/2128.
1996-02-29 20:26:16 +00:00
fvdl 5ac7df1caf Bring in a merge of Rick Macklem's NFSv3 code from Lite2 1996-02-18 11:53:36 +00:00
christos e4c93ec893 nfs prototype changes 1996-02-09 21:48:19 +00:00
jtc 299e1fe9df Rename struct timespec fields to conform to POSIX.1b 1996-02-01 00:31:05 +00:00
cgd e9d17d38b5 avoid unnecessary aging of buffers. This used to make sense, when buffer
caches were much smaller, but makes little sense now, and will become more
useless as RAM (and buffer cache) sizes grow.  Suggested by Bob Baron.
1995-07-24 21:19:27 +00:00
gwr 4b284ae4ba Make call to nfs_writerpc() consistent with others. 1995-03-18 05:49:51 +00:00
mycroft 775d061b43 Add two missing brelse() calls. From Rick Macklem. 1995-01-12 12:08:23 +00:00
mycroft 69eef46dd1 Make sure readdir requests are only truncated on block boundaries. 1995-01-10 06:50:03 +00:00
mycroft 24f8e9187d Fix a problem with write-behind causing processes to be killed occasionally.
From Rick Macklem.
1994-07-20 04:16:01 +00:00
cgd 65855280c7 minor cache consistency fix 1994-07-12 21:03:14 +00:00
cgd fccfa11af5 New RCS ID's, take two. they're more aesthecially pleasant, and use 'NetBSD' 1994-06-29 06:39:25 +00:00
pk bccc2c3c1b straighten out diskless swap code somewhat. 1994-06-22 14:01:45 +00:00
mycroft 0d8affb278 Turn P_NOSWAP and P_PHYSIO into a hold count, as suggested by a comment. 1994-06-15 19:59:21 +00:00
mycroft cde1d47595 Update to 4.4-Lite fs code, with local changes. 1994-06-08 11:33:09 +00:00
cgd f42a80c7ea MIN -> min, MAX -> max 1994-05-24 02:33:03 +00:00
cgd d071d1cf05 some prototype cleanup, eliminate/replace bogus types (e.g. quad and
u_quad) -> use better types (e.g. quad_t & u_quad_t in inodes),
some cleanup.
1994-04-25 03:49:27 +00:00
cgd 3dda0064a5 Convert mount, vnode, and buf structs to use <sys/queue.h>. Also,
some knf and structure frobbing to do along with it.
1994-04-21 07:47:31 +00:00
mycroft 95b048b53a Canonicalize all #includes. 1993-12-18 00:40:47 +00:00
jtc f1fd37d722 Include systm.h to get prototypes (and possibly inlines) of *max functions. 1993-09-03 23:57:21 +00:00
cgd 7ecbd4b92d get rid of some more bogus changes from a week ago 1993-07-13 10:50:04 +00:00
cgd c58c7e0a97 diskless changes made last time were hosed; were using NULL for
"no credentials" rather than NOCRED.
1993-07-13 10:04:26 +00:00
cgd 0b1df311fc changes from ws to support diskless booting... these are "OK" on inspection
and after testing...  (actually, currently, none of the changed
code is even used...)
1993-07-07 12:06:32 +00:00
andrew 112b578662 Paul Kranenburg's VM deadlock fixes. (patchkit patch 00147, part 2) 1993-06-30 03:35:07 +00:00
cgd f4b489f71c more rcs id adding and header cleanup. i like vi macros! 1993-05-20 03:18:35 +00:00
cgd 61f282557f initial import of 386bsd-0.1 sources 1993-03-21 09:45:37 +00:00