diff options
Diffstat (limited to 'linux-nfs')
| -rw-r--r-- | linux-nfs/ChangeLog | 78 | ||||
| -rw-r--r-- | linux-nfs/INSTALL | 11 | ||||
| -rw-r--r-- | linux-nfs/KNOWNBUGS | 37 | ||||
| -rw-r--r-- | linux-nfs/Makefile.am | 5 | ||||
| -rw-r--r-- | linux-nfs/Makefile.in | 536 | ||||
| -rw-r--r-- | linux-nfs/NEW | 319 | ||||
| -rw-r--r-- | linux-nfs/README | 56 | ||||
| -rw-r--r-- | linux-nfs/THANKS | 10 | ||||
| -rw-r--r-- | linux-nfs/TODO | 121 |
9 files changed, 1173 insertions, 0 deletions
diff --git a/linux-nfs/ChangeLog b/linux-nfs/ChangeLog new file mode 100644 index 0000000..11ffe15 --- /dev/null +++ b/linux-nfs/ChangeLog @@ -0,0 +1,78 @@ + +Release 0.4.11 + + * Added async writes. + * Fixed bug where two rpciod's would be started when insmod'ing + both nfs.o and nfsd.o. + +Release 0.4.12 + + * Fixed compile problem after renaming some debug macros. + * Improved readdir cache, which can now hold up to 16 (configurable) + readdir replies. + * Fixed async write bug(s) + * client file locking now does at least lock/unlock without + crashing the machine + * Started to work on NFS swapping + * nfs_get_super no longer requires the file handle passed by + mount but does a straight xprt_create_proto(). + * TCP reconnect should work now (not yet tested for long disconnect + periods, but it does work if you kill and restart nfsd). + +Release 0.4.13 + + * More writeback bugs removed. + * Added a modified (and ansified) tirpc rpcgen to get rid of all + the warnings in files generated from *.x descriptions. That old Sun + code is a real mess. + * Cleaned up nfsd export handling a bit. All syscalls now + take dev/ino rather than the pathname. + * Added sysctl interface to set/get debug flags (see tools/rpcdebug). + * Cleaned up Makefiles. + * (experimental) Gathered writes for nfsd (use the wdelay option in + /etc/exports). + * Fixed silly bug in nfs_readdir (the in-place decoding of readdir + replies requires a temporary buffer). + * Fixed readdir bug in nfsd (long directories were truncated). + +Release 0.4.14 + + * Upgraded to kernel 2.0.23 + * Fixed bug in rpcdebug + * readdir still didn't work right in nfsd. Argh! + * nfsd would refuse to create symlinks with slashes in them:-) + * nfsd's RPC reply cache should now work again. + * Heavily modified rpc.statd for more robust callback/notify handling + +Release 0.4.17 + + * Upgraded to kernel 2.1.14 + * Got lockd working with HPUX in most areas. + +Release 0.4.19 + + * RPC server UDP sockets now receive the sk_buff directly rather + than going through sock->ops->recvmsg. + Also got rid of all those cli/sti's and replaced them with + disable_bh/enable_bh calls. + * Fixed a bug in nfsd's handling of rename and friends. + +Release 0.4.20 + + * Some bugfixes, esp in the writeback code + * Avoid some unnecessary cli/sti pairs + * Added nhfsstone + +Release 0.4.21 + + * Minor bugfixes + * Moved to post-2.1.16 module handling code + +Release 0.4.22 + + * Fixed a bug that made rpcinfo -u host nlockmgr provoke a kernel + oops. + * Upgraded to mount-2.6b + * Added NFSv3 support to mountd and nfsd + * Made sure it compiles with glibc2. + diff --git a/linux-nfs/INSTALL b/linux-nfs/INSTALL new file mode 100644 index 0000000..351f733 --- /dev/null +++ b/linux-nfs/INSTALL @@ -0,0 +1,11 @@ + +Even though the Makefiles offer a `make install' instruction, +I would suggest against using it yet. I have run nfsd and the nfs +client without kernel oopses for a while, but the picture may change +if you start playing with lockd. Automatic installation may not even +work for the kernel makefiles yet. + +I'd therefore advise that you use a separate Linux box for testing +if you have one. Use the etc/copy script to copy all modules and +support programs, and run the ins script to start the show. rmm +will clean up afterwards (provided you didn't trigger an oops). diff --git a/linux-nfs/KNOWNBUGS b/linux-nfs/KNOWNBUGS new file mode 100644 index 0000000..b0ecd5c --- /dev/null +++ b/linux-nfs/KNOWNBUGS @@ -0,0 +1,37 @@ + +nfsd: + + * We currently keep the inode in the exports struct. This is + a bad idea with directories that are intended to be used as + a mount point. Must store the file name instead and do a + lookup when getfh is called. Yuck! + + Even yuckier: what do we do about exports matching when we + can't keep the inode number? + + * stating a file on remote cdrom returns st_blocks == 0 for some + apps. + + * Should allow multiple exports per dev if one of the directories + isn't a subdir of the other. + +nfsclnt: + + * On some occasions, an EAGAIN reported by the transport layer + will be propagated to the VFS. + * Some operations do not seem to release the inode properly, so + unmounting the device fails. + +lockd: + + * Handle portmap registration in a separate thread. portmap may + not be running when we try to mount the first NFS volume (esp. + when mounting /usr). + + * Does not inform rpc.statd when hosts no longer require + monitoring; hosts are incorrectly monitored until next system + reboot. + +exportfs/mountd: + + * Export handling is reported to do odd things at times. diff --git a/linux-nfs/Makefile.am b/linux-nfs/Makefile.am new file mode 100644 index 0000000..9c2065b --- /dev/null +++ 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install-exec-am install-html \ + install-html-am install-info install-info-am install-man \ + install-pdf install-pdf-am install-ps install-ps-am \ + install-strip installcheck installcheck-am installdirs \ + maintainer-clean maintainer-clean-generic mostlyclean \ + mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \ + tags-am uninstall uninstall-am + +.PRECIOUS: Makefile + + +# Tell versions [3.59,3.63) of GNU make to not export all variables. +# Otherwise a system limit (for SysV at least) may be exceeded. +.NOEXPORT: diff --git a/linux-nfs/NEW b/linux-nfs/NEW new file mode 100644 index 0000000..43f5c69 --- /dev/null +++ b/linux-nfs/NEW @@ -0,0 +1,319 @@ +This is the Linux kernel NFS daemon 1.4.7. It is based on linux-nfs +0.4.22. It is tested on Linux/alpha and Linux/x86 running glibc 2.1.1. + +WARNING: The NFS servers in Linux 2.2 to 2.2.11 are not compatible with +other NFS client implemenations. If you plan to use Linux 2.2.x as an +NFS server for non-Linux NFS clients, you should apply the patches +enlosed here. + +linux-2.2.7-sunrpc.patch, nfsd-2.2.7-2.lockd.patch, nfsd-2.2.7-3.patch +and nfsd-2.2.7-nfsfh.patch are required for Linux 2.2.7 to 2.2.11. +For other kernel versions, they have to be applied by hand if they are +still needed. + +For Linux 2.2.7 to 2.2.10, nfsd-2.2.7-1.lock.patch is also required. + +I made my knfsd package available only because I use it and noone else +seems to maintain it. But I don't have much time to really work on it. +I will only fix bugs in the NFS utilities and serious kernel NFS bugs +which I can duplcate easily. If you have any kernel NFS server problem, +please report it to the Linux kernel mailing list. If it can be +reproduced with Linux NFS server and client in less than 5 minutes, you +can also send me a copy in addition to sending it to the Linux kernel +mailing list. I may take a look when I have time. However I will collect +kernel NFS related patches. Contributions are more than welcome. + +The NFS lock only works with lockd. Please make sure the portmapper, +portmap, is started before mounting NFS. + +Changes from knfsd 1.4.6: + +1. Fix a typo in knfslock.init. +2. A new kernel patch, nfsd-2.2.7-1.lock.patch, to fix some NFS lock + bugs. + +Changes from knfsd 1.4.5: + +1. Rename /var/lib/nfs/xtab.export to /var/lib/nfs/etab. + +Changes from knfsd 1.4.4: + +1. Try to fix mountd performance problem by introducing + /var/lib/nfs/xtab.export. That is + + a. "exportfs" reads from /var/lib/nfs/xtab and writes to + /var/lib/nfs/xtab.export. + b. "mountd" reads from /var/lib/nfs/xtab.export and writes to + /var/lib/nfs/xtab. + + The idea is "mountd" doesn't have to read /var/lib/nfs/xtab, which + is very expensive. + +Changes from knfsd 1.4.3: + +1. nfsd-2.2.7-nfsfh.patch, a new kernel patch for filehandle. +2. nfsd-2.2.7-2.lockd.patch, a new patch for lockd. +3. Misc bug fixes. + +Changes from knfsd 1.4.2: + +1. A mountd patch so that the syslog reports unknown requests, and also + reports *what* is being (un)mounted, from Piete Brooks + <Piete.Brooks@cl.cam.ac.uk>. +2. Fix knfsd.init for restart. +3. Add knfslock.init. +4. knfsd-compat.spec is removed. +5. nfsd-2.2.7-lockd.patch, a patch to start lockd independent of + nfs and nfsd. + +Changes from knfsd 1.4.1: + +1. Resolve symlink for umount from Piete.Brooks@cl.cam.ac.uk (Piete + Brooks) +2. Fix knfsd.init for statd. + +Changes from knfsd 1.4: + +1. nfsd-2.2.7-3.patch. This is the only patch you need for Linux 2.2.7 + to 2.2.10. +2. Remove + nfsd-2.2.5-1.patch + nfsd-2.2.5-3.patch + nfsd-2.2.8-1.patch + nfsd-2.2.7-iget.diff + nfsd-2.2.5-nfsfh.diff + nfsd-2.2.5-file.patch + nfsd-2.2.7-quota.patch + nfsd-2.2.7-mknod.patch +3. Statd update by Jeff Uphoff <juphoff@transmeta.com>. +4. netgroups patch from Peter Breitenlohner <peb@mppmu.mpg.de>. +5. Add option checking to exportfs. + +Changes from knfsd 1.3.3b: + +1. Add linux-2.2.7-sunrpc.patch for a SMP bug in sunrpc. +2. Add --port/-P to nfsd/mountd, by Jeff Johnson <jbj@redhat.com>. +3. Add nfsd.8, mountd.8 and statd.man, by Olaf Kirch + <okir@monad.swb.de>. +4. Update nfsstat.man by Olaf Kirch <okir@monad.swb.de>. +5. Statd fix by Jeff Uphoff <juphoff@transmeta.com>. +6. Remove knfsd-nok.patch. + +Changes from knfsd 1.3.3a: + +1. Fix stdin/stdout/stdout handling in mountd. +2. nfsd-2.2.7-mknod.patch. A patch for mknod. +3. nfsd-2.2.7-quota.patch. A patch for quota. + +Changes from knfsd 1.3.3: + +1. Fix hostname matching for wildcard, subnet and netgroup. + +Changes from knfsd 1.3.2: + +1. Modified mountd to allow clients without IP address to hostname map. + +Changes from knfsd 1.3.1a: + +1. nfsd-2.2.5-3.patch. This is the only patch you need for Linux 2.2.5. + +Changes from knfsd 1.3.1: + +1. A patch for knfsd.spec from Markus Linnala <maage@cs.tut.fi>. + +Changes from knfsd 1.3a: + +1. nfsd-2.2.8-1.patch. This is the only patch you need for Linux 2.2.8. +2. nfsd-2.2.7-2.patch. This is the only patch you need for Linux 2.2.7. + +Changes from knfsd 1.3: + +1. Adding "--no-nfs-version 3" to mountd in knfsd.init from RedHat 6.0. + +Changes from knfsd 1.2.2a: + +1. Updated knfsd.init from RedHat 6.0. +2. nfsd-2.2.7-1.patch. This is the only patch you need for Linux 2.2.7. +3. Misc updates from RedHat 6.0. + +Changes from knfsd 1.2.2: + +1. Make the default NFS server kernel thread to 8 in the rc script. + +Changes from knfsd 1.2: + +1. Moved knfsd.spec to knfsd-compat.spec. +2. Update knfsd.spec from knfsd-981204-3.src.rpm. +3. Fix the squash_[ug]id parsing in /etc/exports from Anders + Hammarquist <iko@cd.chalmers.se>. +4. nfsd-2.2.5-file.patch to clear the bogus bit for MKDIR and SYMLINK. +5. nfsd-2.2.5-1.patch. A NFS patch based on nfsd-2.2.3-1.patch for + Linux 2.2.5. + +Changes from knfsd 1.1: + +1. Remove + cache-2.1.131-1.patch + linux-2.1.1xx.diff + lock-2.1.131.diff + lock-2.1.1xx.diff + nfsd-2.1.127-5.patch + nullproc-2.1.1xx.diff + procfs-2.1.127.patch + quota-2.1.1xx.diff + root-2.1.1xx.diff + socket-2.1.1xx.diff + sunrpc-2.1.123-1.patch +2. locks-2.2.3.diff. A patch for file lock. +3. nfsd-2.2.3-1.patch. A NFS patch by "G. Allen Morris III" +(gam3@acm.org). + +Changes from knfsd 1.0: + +1. Handle broken /var/lib/nfs/rmtab. +2. Handle lower/upper cases in wildcard hostnames in /etc/exports. + +Changes from knfsd-981204: + +1. Modify etc/rc.nfsd to check /var/lib/nfs/rmtab during startup. +2. Add knfsd.spec for RedHat 5. Need nfs-server-2.2beta37-1.1.src.rpm + and initscripts-3.78.1-2.src.rpm. +3. Add support for "make install prefix=...". + +Changes from knfsd-981122: + +1. Modify etc/rc.nfsd and etc/rc.nfsfs to handle statd during shutdown. +2. Remove maximum knfsd count checking. +3. Clean up mountd. +4. cache-2.1.131-1.patch from G. Allen Morris III (gam3@acm.org). +5. lock-2.1.131.diff. A nfsd lock patch for Linux 2.1.131. + +Changes from knfsd-981113: + +1. procfs-2.1.127.patch from G. Allen Morris III (gam3@acm.org). +2. Modify etc/rc.nfsd and etc/rc.nfsfs to better handle statd. +3. Fix the sub-mounted directories. + +Changes from knfsd-981022: + +1. Fix buffer overruns from Peter Benie <pjb1008@cus.cam.ac.uk>. +2. Fix hostname matching. +3. Correctly handle dupilcations in /etc/exports. +4. Add -F flag to statd. +5. nfsd-2.1.127-5.patch from G. Allen Morris III (gam3@acm.org). + +Changes from knfsd-981014: + +1. lock-2.1.1xx.diff. A nfsd lock patch. +2. nullproc-2.1.1xx.diff. Allow any clients to call the nfsd NULL proc. +3. Add etc/rc.nfsfs to handle statd. +3. Update etc/rc.nfsd to handle statd. +4. nfsd-2.1.125-2.patch from G. Allen Morris III (gam3@acm.org). +5. Fix inet_ntoa usage in statd. + +Changes from knfsd-981010: + +1. Check client aliases when matching for wildcard client hostnames. +2. Fix memory leak in mountd. +3. Fix filename in nfsd-2.1.125-1.patch. + +Changes from knfsd-980930: + +1. nfsd-2.1.125-1.patch from G. Allen Morris III (gam3@acm.org) and me. +2. Fix the hostent bugs in mountd and statd. +3. Remove "kexportfs -au" for "rc.nfsd stop". + +Changes from knfsd-980925: + +1. socket-2.1.1xx.diff for creating socket on NFS client. +2. There is a knsfd root_squash patch for Linux 2.1.1xx, + root-2.1.1xx.diff. It is only tested on linux 2.1.123. + It also fixes the server side 0711 mode bug. +3. sunrpc-2.1.123-1.patch from Bill Hawes <whawes@transmeta.com>. +4. nfsd-2.1.122-3.patch from G. Allen Morris III (gam3@acm.org). +5. Various buffer overrun changes. +6. Fix mountd to check the duplicated entry in rmtab. +7. Change exportfs to ignore warnings for "-r". +8. Fix showmount -e. + +Changes from knfsd-980922: + +1. nfsd-2.1.121-4.patch from G. Allen Morris III (gam3@acm.org). +2. Make async as default for export. It matches the user space NFS + server. + +Changes from knfsd-980920: + +1. Add NFS mount version flags to mountd. Change rc.nfsd to disable + NFS V3 for mountd. +2. Fix client hostname. +3. rc.nfsd runs kexportfs with -r instead of -a for restart and reload. + +Changes from knfsd-980915: + +1. There is a knsfd quota patch for Linux 2.1.1xx, quota-2.1.1xx.diff. + It is only tested on linux 2.1.122. +2. The submount pathname is removed from the xtab file. +3. rc.nfsd runs kexportfs with -r instead of -a for start. +4. Fix kshowmount -e. +5. Fix hostname matching. +6. Fix compiling on libc 5. + +Changes from knfsd-980910: + +1. nfsd-2.1.121-3.patch from G. Allen Morris III (gam3@acm.org). +2. A new flag, -r, for exportfs. +3. Don't put an entry in xtab if kernel rejects it. +4. Use the official hostname when checking if 2 hostnames are the same. +5. Allow submounts. + +It is available at + +ftp://ftp.varesearch.com/pub/support/hjl/knfsd/knfsd-1.4.7.tar.gz +ftp://ftp.varesearch.com/pub/support/hjl/knfsd/knfsd-1.4.6-1.4.7.diff.gz +ftp://ftp.kernel.org/pub/linux/devel/gcc/knfsd-1.4.7.tar.gz +ftp://ftp.kernel.org/pub/linux/devel/gcc/knfsd-1.4.6-1.4.7.diff.gz + +You have to apply the patch, locks-2.2.3.diff, to the Linux kernel +first. It fixes quite some file lock bugs. That patch is against Linux +2.2.3. If your kernel is different, you have to apply it by hand. + +nfsd-2.2.3-1.patch is a new knfsd patch against linux 2.2.3 from +"G. Allen Morris III" (gam3@acm.org). It works for me on x86 and alpha. +It is needed for the none-Linux NFS clients. You can get Allen's +current patch from + +http://www.CSUA.Berkeley.EDU/~gam3/knfsd/ + +nfsd-2.2.7-3.patch is based on nfsd-2.2.3-1.patch for Linux 2.2.7. If +you use Linux 2.2.7, you should apply nfsd-2.2.7-3.patch instead of +nfsd-2.2.3-1.patch. Please don't use any other patches included here +for Linux 2.2.7. For other kernel versions, you may have to apply it +by hand. + +nfsd-2.2.7-2.lockd.patch is also necessary to start lockd independent +of nfs and nfsd. + +To compile, just do + +# ./configure +# make + +Makefile will try to determine which C library you are using and compile +this package accordingly. + +# make install + +will install the knfsd binaries. You have to install a knfs start up +script by hand. There is a new rc.nfsd in etc. I use it for both the +user-space nfsd and the kernel nfsd. + +There is one RPM spec file, knfs.spec, which is for a Linux system +based on Linux 2.2 without support for Linux 2.0. You also need +knfsd-1.4.6.tar.gz to create the knfsd RPMs. + +Thanks. + +H.J. +hjl@lucon.org +08/14/99 diff --git a/linux-nfs/README b/linux-nfs/README new file mode 100644 index 0000000..b210c61 --- /dev/null +++ b/linux-nfs/README @@ -0,0 +1,56 @@ + +This package contains a greatly revised NFS implementation for Linux +along with the necessary daemons and utilities. There are still several +features missing that I'd want to include, and there are some recent +improvements to the Linux NFS kernel client not reflected here (notably +the attrtimeo fix). + +This thing has become much too large for me to handle all alone anymore. +Originally, I had planned to have most of the NFS implementation running +stably by August, so I could start to concentrate more on other jobs that +are currently in the queue (like updating the NAG). As it turned out, it +was much more work than I anticipated, and I fell short of my time goal. +I'm therefore looking for volunteers who would like to work with me on +finishing this package. Otherwise, this project could end up rusting in +the corner of some FTP site... + +Ideally, I would want to hand over parts of the source tree to other +hackers to maintain/enhance/etc. But that's not a requirement; if you +feel you don't have that much time, you can also contribute by picking +up one of the loose ends and finish what needs to be done (take a look +at the TODO file...) And then, you can also be plainly a tester. + +There's currently a mailing list for lockd development at NRAO +(lockd-statd@linux.nrao.edu --- mail majordomo@linux.nrao.edu to +subscribe). If Jeff agress, we could turn this into a general linux-nfs +mailing list. + + +Hope this covers about what I wanted to say, +Olaf + +------------------------------------------------------------------ + + + SOURCE TREE OVERVIEW + + + +support/ Support libraries for user-space programs + +support/nfs Generic library for nfsd utilities +support/export Manipulation of /etc/exports and /var/lib/nfs/{xtab,rmtab} + +utils/ Code for various user-space programs. +utils/exportfs Management of nfsd export table. +utils/mount Modified mount command to support NFS over TCP. +utils/mountd New rpc.mountd for kernel nfsd. +utils/nfsd New nfsd (just starts kernel nfsd). +utils/nfsstat Pretty-print NFS stats from /proc/net/rpc/nfs* +utils/rquotad Marco van Wieringen's rquotad +utils/showmount Rick Sladkey's showmount client +utils/statd Jeff Uphoff's rpc.statd. + +tools/ Support tools for developers/debuggers/testers +tools/rpcdebug This one sets/gets the debug flags for each of the kernel + modules. diff --git a/linux-nfs/THANKS b/linux-nfs/THANKS new file mode 100644 index 0000000..22a80dc --- /dev/null +++ b/linux-nfs/THANKS @@ -0,0 +1,10 @@ + + This piece of software owes a lot to all the people who + hacked on Linux NFS before me, most notably Rick Sladkey + and Donald Becker. + + I also wish to thank Holger Grothe for loaning me a hard + disk and a monitor to get my old 486 flying again so I have + a decentish test platform. + + Olaf diff --git a/linux-nfs/TODO b/linux-nfs/TODO new file mode 100644 index 0000000..3a439d4 --- /dev/null +++ b/linux-nfs/TODO @@ -0,0 +1,121 @@ + +Todo/Status List for Linux-NFS + + * denotes to be done; + o denotes draft implementation, possibly commented out + - denotes done, + + denotes done and tested +------------------------------------------------------------------ + +RPC: + + * Server-side AUTH_DES authentication + +NFS: + + * stat() calls don't check whether the cached attrs are stil valid + (this is a problem in the VFS). + - NFS_ROOT stuff needs fixing. + o Swapping over NFS. + + Issues of swapout: + * Avoid recursion in low memory situations where + kmalloc may call try_to_swap_out etc ad inf. + * Don't do async I/O on swap files. + + For special-casing related to NFS swap I/O, flag swap file + semantics in inode->i_flags. In swapfile.c, change functions + to call readpage/writepage if available, otherwise proceed + as usual. + + - Write-back support. + * Disable page cache invalidation/flushing for locked file + regions. + - Directory caching (we now have page-sized dircache entries + which could easily be organized into a linked list). These + dircache pages come along as a linked list that can be copied + almost 1-to-1 into a dirent struct. If this is put into the + VFS, other remote fs's will also benefit. + + [Note: I just increased the readdir cache to hold more than + one directory. With this, the exclusive lock on readdir goes + away, too. With a larger cache, it may also be worth to think + about directory readahead...] + * Better lookup caching? + * When a read lock is present, don't time out attr cache or + page cache for that region. Likewise, if a write lock is present, + be lazy on write-back. + * Implement CTO. + - BUG: Invalidate readdir cache after remove/rename/unlink + * Automatic `mounting' when the server crosses mount points + transparently (some IRIX machines seem to do this when + using -nohide). + * NFSv3 support. This requires careful design to maximize + code sharing between NFSv2 and NFSv3. + * More robust rename handling (see comment before nfs_rename). + * Add Miquel's O_EXCL hack for file creation. + * Performance improvement: When a complete reply is received, and + the (async) task is woken up, don't put it on rpciod's scheduling + queue, but add it to a `fast scheduler queue.' The fast scheduler + could be a special handler that's registered on the tq_scheduler task + queue. This queue is fired by the kernel scheduler as soon as + the other bottom halves have been run. + + Note that implementing this for sync tasks is even trickier than + for async tasks, because you have to make sure you do the right + thing in rpc_sleep_on(). + * writeback of writable mmaps. Dirty pages are not subject to + writeback scheduling. Also, msync should make sure pages are + written with O_SYNC on. + + +nfsd: + + * uid/gid mapping, and rpc.ugidd support + - Don't read/write a file that might have mandatory locks. + * Implement secure/kerberos export options (take care of lockd + fopen() calls--most clients seem to use NULL creds for lockd). + - there's a bug in readdir wrt large directories. Try mounting + the linux source tree and do an ls on include/linux... + * Support for UNIX socket creation. + * Someone should look over the error return codes. I tend to + mix up EPERM and EACCES. + * NFSv3 support. + - Refuse to look up inodes in procfs (security issues). + o Delayed writes (delay syncing of file data when nfsd handles + several write requests for the same file concurrently). + (Draft - see nfsd_write in fs/nfsd/write.c. Needs benchmarking). + * Faster read operations (single copy): mmap the file region + to be read into VM, and pass the VMA to the xdr routines + which pass the region's VM address into sock->ops->writemsg. + This copies the file data directly from the page cache into + the network buffer. + Release the vma region after encoding. + * Faster write operations (single copy, with IPv6 net layout): + Get the unfragmented UDP datagram, pull the header and + do normal processing. Then mmap the file, copy the write data, + and release VMA. + - Clear setuid/setgid bit after write(). + * Quota support. + +lockd: + + * Server should run on privileged port. + * Testing reclaim support. + * HP lockd accepts our GRANT_MSG callback and passes on the grant + to the blocking process, but doesn't reply with a GRANT_RES. + It's not clear to me why it would do this. + * Unregister hosts (SM_UNMON) with rpc.statd when appropriate. + +mountd + + * Unregister service from portmapper upon exit/SIGTERM + +mount + + * If available, use version 3 of the mount protocol and + obtain pathconf data (fill in data->bsize). + +documentation: + + - Manpages need to be written |