Commit Graph

593 Commits

Author SHA1 Message Date
jdolecek f8595b9782 add missing dot in comment 2003-02-18 14:37:08 +00:00
perseant b397c875ae Add code to UBCify LFS. This is still behind "#ifdef LFS_UBC" for now
(there are still some details to work out) but expect that to go
away soon.  To support these basic changes (creation of lfs_putpages,
lfs_gop_write, mods to lfs_balloc) several other changes were made, to
wit:

* Create a writer daemon kernel thread whose purpose is to handle page
  writes for the pagedaemon, but which also takes over some of the
  functions of lfs_check().  This thread is started the first time an
  LFS is mounted.

* Add a "flags" parameter to GOP_SIZE.  Current values are
  GOP_SIZE_READ, meaning that the call should return the size of the
  in-core version of the file, and GOP_SIZE_WRITE, meaning that it
  should return the on-disk size.  One of GOP_SIZE_READ or
  GOP_SIZE_WRITE must be specified.

* Instead of using malloc(...M_WAITOK) for everything, reserve enough
  resources to get by and use malloc(...M_NOWAIT), using the reserves if
  necessary.  Use the pool subsystem for structures small enough that
  this is feasible.  This also obsoletes LFS_THROTTLE.

And a few that are not strictly necessary:

* Moves the LFS inode extensions off onto a separately allocated
  structure; getting closer to LFS as an LKM.  "Welcome to 1.6O."

* Unified GOP_ALLOC between FFS and LFS.

* Update LFS copyright headers to correct values.

* Actually cast to unsigned in lfs_shellsort, like the comment says.

* Keep track of which segments were empty before the previous
  checkpoint; any segments that pass two checkpoints both dirty and
  empty can be summarily cleaned.  Do this.  Right now lfs_segclean
  still works, but this should be turned into an effectless
  compatibility syscall.
2003-02-17 23:48:08 +00:00
drochner 7707c16daa Don't remove the nfsnode from the hash chain in nfs_inactive.
It will never get back... it will not be found in nfs_nget, a new
nfsnode+vnode is allocated instead, which causes a node leak, and
also makes the mountpointness of the vnode to be forgotten, breaking
filesystem crossing lookups through this vnode.
2003-02-15 18:00:25 +00:00
fvdl 2be3d82860 Move purging the dircache and removing a vnode from the nqnfs timer queue
into nfs_inactive, this is a better place for it.

This doesn't actually solve the actual problem, which appears to be a race
condition with unmounting and vnode recycling somewhere, but it fixes
it in the sense that nfs_reclaim will not reference a bad v_mount anymore.
2003-02-12 14:50:52 +00:00
christos 49d7e33c00 move the MALLOC decl for DIROFFS to nfs_subs.c 2003-02-10 17:31:01 +00:00
christos e4d4f01d2b protect <sys/mallocvar.h> ifdef _KERNEL 2003-02-02 02:34:53 +00:00
thorpej b193480908 Add extensible malloc types, adapted from FreeBSD. This turns
malloc types into a structure, a pointer to which is passed around,
instead of an int constant.  Allow the limit to be adjusted when the
malloc type is defined, or with a function call, as suggested by
Jonathan Stone.
2003-02-01 06:23:35 +00:00
thorpej b78f59b443 Merge the nathanw_sa branch. 2003-01-18 08:51:40 +00:00
matt 9bd0cc2bb9 Make sure these all agree on the same definitons of various variables. 2002-12-01 23:02:10 +00:00
matt b5e32a190e Don't define VA_EXCLUSIVE if it's not defined. If we do, it'll be a
different value from the one in <sys/vnode.h>
2002-12-01 23:00:51 +00:00
matt b360b734b1 Add multiple inclusion protection. 2002-12-01 22:59:42 +00:00
lukem 0635de35a3 Remove KDIR=, since SYS_INCLUDE=symlinks and KDIR are not supported any more. 2002-11-26 23:30:07 +00:00
scw ba1d389688 Fix an uninitialised variable warning. 2002-11-24 11:02:57 +00:00
yamt 059aba1c85 fix panic (assertion failure) on error case.
if uiomove is failed, we should clean up pages past eof.

the problem reported by kay.
ok'ed by Chuck Silvers.
2002-10-29 10:15:16 +00:00
jdolecek e0cc03a09b merge kqueue branch into -current
kqueue provides a stateful and efficient event notification framework
currently supported events include socket, file, directory, fifo,
pipe, tty and device changes, and monitoring of processes and signals

kqueue is supported by all writable filesystems in NetBSD tree
(with exception of Coda) and all device drivers supporting poll(2)

based on work done by Jonathan Lemon for FreeBSD
initial NetBSD port done by Luke Mewburn and Jason Thorpe
2002-10-23 09:10:23 +00:00
yamt 869f4a9733 fix panic introduced by my previous commit.
for device special files, VOP_UNLOCK is called
by nfs_loadattrcache with v_data == 0.

reported and tested by Matthias Drochner.
2002-10-22 10:10:28 +00:00
simonb 7a4056e25c "nmp" in nfs_lookup() is set but not used, remove it. 2002-10-22 02:19:57 +00:00
yamt 005c29fafb fix a page locking deadlock problem for nfs.
add a flag that specify if the file can be truncated safely or not
to nfsm_loadattr and friends.  when it isn't safe, just mark the nfsnode
as "should be truncated later".

ok'ed by Frank van der Linden and Chuck Silvers.
close kern/18036.
2002-10-21 12:52:32 +00:00
enami 7409653fdf When printing filesystem specific parameters, also print the address and
port of server numerically.
2002-10-21 03:58:07 +00:00
thorpej ae19c3c263 nfs_remove(): Don't vput() the vnode twice if vp == dvp, vrele() and
vput() instead.
2002-10-18 19:08:15 +00:00
christos 1fafdc0bf2 forgot to set deadthresh; thanks to YAMAMOTO Takashi. 2002-10-01 15:00:04 +00:00
christos 7b0d38f045 back out previous. the problem is not the v_mount is null, but it appears
corrupted.
2002-10-01 14:59:21 +00:00
christos da8db7611e deal with v_mount == NULL in nfs_reclaim(). We should not be touching this
anyway, but nq-nfs wants us to.
2002-09-30 20:55:55 +00:00
bouyer c7b51b5566 In nfs_commit(), sanity-check what we get from network: if we try to fluch
past end of file, or if off + cnt overflows a quad_t, flush to end of file.
2002-09-27 19:30:46 +00:00
provos 0f09ed48a5 remove trailing \n in panic(). approved perry. 2002-09-27 15:35:29 +00:00
bouyer 992abe6e5b In nfsrv_create(), kill an extra PNBUF_PUT() in the NFSv2 mknod case. The
pnbuf has already been freed by VOP_MKNOD. This should have been removed in
rev 1.60.
Should fix PR 18013, OK'd by fvdl.
2002-09-26 20:41:25 +00:00
bouyer 7005ca7253 nfsrv_commit(): Properly handle the case cnt == 0, which means "flush to
end of file". Calling VOP_FSYNC with start == end triggers a DIAGNOSTIC
check. Noticed with NFSv3 Linux clients. OK'd by fvdl.
2002-09-26 20:38:04 +00:00
jdolecek ea3e4c9a2a <sys/conf.h> and <sys/device.h> are not needed here 2002-09-22 19:35:22 +00:00
jdolecek eb337a8a22 don't seem to need <sys/conf.h> or <net/if.h> here 2002-09-22 19:15:09 +00:00
christos 6868d0a7d6 MNT_GETARGS support 2002-09-21 18:08:27 +00:00
chs 73e5c26ec7 pick up a fix from openbsd:
revision 1.33
    date: 2002/07/24 23:32:11;  author: nordin;  state: Exp;  lines: +3 -3
    Use sizeof(array) instead of sizeof(array *) for bcopy length. ok deraadt@
2002-09-14 21:45:16 +00:00
bouyer 3a7aeb79ca nfs_doio(): handle the case where nfs_writerpc() returned error != 0.
Fix kern/18125. OK'd by thorpej and chs.
2002-09-01 10:39:38 +00:00
enami 691598efd0 s/FREE/PNBUF_PUT/ 2002-08-23 05:38:51 +00:00
fvdl 316b8f10e7 Initialize recm to NULL inside the loop, so that a record length of
NULL will not accidentallly append bogus data (the previous record).

Derived from a fix by Matt Dillon in FreeBSD.
2002-08-02 00:09:33 +00:00
soren 178d83d503 Die, qaddr_t, die! - mnt_data in struct mount is already effectively
a void *, so stop pretending otherwise.
2002-07-30 07:40:07 +00:00
enami 5f5918e1e7 Synchronize code and comment again to prevent mbuf leak. Sprinkle some
KNF while I'm here.
2002-07-26 01:36:30 +00:00
jdolecek 413ebb2a10 Reduce stack usage on the NFS mount code path. This fixes kernel stack
overflow when using IPsec on vax, as reported by Olaf Seibert on
current-users@.
2002-07-25 19:03:27 +00:00
drochner 92ade669c9 increase IP TTL for BOOTP/DHCP request packets to avoid dumb
routers dropping the packet
(seems to be a problem with Cisco and its "helper-address" feature;
a Cabletron SSR I tested with didn't have this problem)
2002-06-10 17:45:54 +00:00
tls 92f8323be6 Fix client-side lockmgr: locking against myself panic immediately upon an
attempt to NFS-mount a filesystem with the -l (use ReaddirPlus RPC) option.

Fix from Bill Sommerfeld.
2002-05-19 20:51:04 +00:00
matt caf4b56c6f Eliminate commons 2002-05-12 23:04:35 +00:00
simonb 8cb3bbd37c In bootpcheck(), make sure we m_pullup() all the of bootp header that we
actually examine.
While here, toss out home-grown ofs() macro and use offsetof().
2002-05-12 12:52:58 +00:00
enami 59a79c7928 Remove wrong assertion in previous commit. 2002-05-06 03:20:54 +00:00
enami cfa571e2e2 The per nfsnode n_commitlock is a sleep lock, but we can't sleep if
PGO_LOCKED getpages request.  So, just make the lock fail and tell
the caller that there is no pages available if we can't acquire it.
The caller will call us again soon without PGO_LOCKED.  Reviewed by chuq.
2002-05-06 00:07:51 +00:00
thorpej 37dc008ca3 Cleanup how file system configuration information is declared, grouping
related information together, with the file system code itself.

This is just low-hanging fruit -- more to come.
2002-04-16 23:14:05 +00:00
chs a5838679d1 only use UBC_FAULTBUSY to access offsets past EOF,
otherwise we can deadlock trying to busy the same page in uiomove().
2002-04-10 03:06:57 +00:00
wrstuden a36c34f662 In the SETATTR code, if the changes to a & m time are exclusively
set via NFSV3SATTRTIME_TOSERVER and not NFSV3SATTRTIME_TOCLIENT,
add VA_UTIMES_NULL to the va_vflags. This reflects our policy
where we're much more liberal about who can set a & m times to 'now'
than we are about who can set them to a specific time.

Should close PR 15597 from Martin Husemann. Patch is based on the
one Matthias Drochner gave in the PR.
2002-04-03 00:20:15 +00:00
chs f80ed5892c remove PGO_WEAK, it isn't needed anymore. 2002-03-25 02:08:09 +00:00
chs 20a94bdf2d only do v3 stuff for v3 filesystems. 2002-03-23 05:00:57 +00:00
thorpej df292ba439 Add a NetBSD Vendor Class Identifier option as proposed on tech-net in
message <20020216172527.C23901@dr-evil.shagadelic.org>.
2002-03-20 23:07:37 +00:00
christos 14eaffb49d use the exithook mechanism to remove the exiting process from the list
of processes to be signalled in a soft mount.
2002-03-17 22:22:39 +00:00