e225b7bd09
- Reorganize locking in UVM and provide extra serialisation for pmap(9). New lock order: [vmpage-owner-lock] -> pmap-lock. - Simplify locking in some pmap(9) modules by removing P->V locking. - Use lock object on vmobjlock (and thus vnode_t::v_interlock) to share the locks amongst UVM objects where necessary (tmpfs, layerfs, unionfs). - Rewrite and optimise x86 TLB shootdown code, make it simpler and cleaner. Add TLBSTATS option for x86 to collect statistics about TLB shootdowns. - Unify /dev/mem et al in MI code and provide required locking (removes kernel-lock on some ports). Also, avoid cache-aliasing issues. Thanks to Andrew Doran and Joerg Sonnenberger, as their initial patches formed the core changes of this branch. |
||
|---|---|---|
| .. | ||
| README | ||
| TODO | ||
| cnode.h | ||
| coda.h | ||
| coda_io.h | ||
| coda_namecache.c | ||
| coda_namecache.h | ||
| coda_opstats.h | ||
| coda_pioctl.h | ||
| coda_psdev.c | ||
| coda_subr.c | ||
| coda_subr.h | ||
| coda_venus.c | ||
| coda_venus.h | ||
| coda_vfsops.c | ||
| coda_vfsops.h | ||
| coda_vnops.c | ||
| coda_vnops.h | ||
| files.coda | ||
README
$NetBSD: README,v 1.3 2007/04/08 13:50:51 gdt Exp $
Coda is a distributed filesystem. It is derived from AFS, but
supports disconnected operation, both reading and writing. This
directory contains the interface between the VFS layer and a
user-space program ("venus") that implements the client part of Coda.
The interface is similar to puffs(9) in many respects.
Coda servers do not need kernel support.
For information on Coda, see
http://www.coda.cs.cmu.edu
As of April 2007, Coda is not quite stable enough for demanding
production use, but is usable by those who are willing to deal with
problems. Help can be obtained via the list codalist@coda.cs.cmu.edu.
As of April 2007, pkgsrc/net/coda\* is old, and gdt recommends running
code from Coda's CVS.
As of April 2007, the kernel code has not been tested on 64-bit
architectures. It runs on i386 and has previously been tested on
sparc.