Commit Graph

149 Commits

Author SHA1 Message Date
fvdl a16656fe06 Invalidate the access cache when loading a new set of attributes into
the atribute cache. Fixes access cache problem seen by
Nathan Funk of the UofS, relayed by Greg Oster.
2002-02-28 21:38:08 +00:00
fvdl e3e7b4bd55 Set np->n_size before calling nfs_vinvalbuf, to avoid recursion
and confusion about the actual filesize. From Matt Dillon's
similar change in FreeBSD.

XXX n_size is really redundant in -current and must die. This commit
XXX is more of a placeholder for a pullup into the 1.5 branch.
2001-12-15 00:32:49 +00:00
lukem 290cc55a28 - Implement
uint32_t namei_hash(const char *p, const char **ep)
  which determines the equivalent MI hash32_str() hash for p.
  If *ep != NULL, calculate the hash to the character before ep.
  If *ep == NULL, calculate the has to the first / or NUL found, and
  point *ep to that location.
- Use namei_hash() to calculate cn_hash in lookup() and relookup().
  Hash distribution goes from 35-40% to 55-70%, with similar profiled
  time spent in cache_lookup() and cache_enter() on my P3-600.
- Use namei_hash() to calculate cn_hash in nfs_readdirplusrpc(),
  insetad of homegrown code (that differed from that in lookup() !)
  namei_hash() has better spread and is faster than previous code
  (which used a non-constant multiplication).
2001-12-08 04:09:59 +00:00
christos 10b6cdd540 PR/14817: Gregory McGarry: NFS_V2_ONLY doesn't seem to work. 2001-12-04 18:38:08 +00:00
chs 68b5980eb0 call VOP_PUTPAGES() directly instead of indirecting through
the UVM pager op vector.
2001-11-30 07:08:53 +00:00
christos 9caaf10ee6 PR/14776: Emmanuel Dreyfus: cross device hard link causes panic.
Call VOP_ABORTOP on the right vnode damnit!
2001-11-29 22:32:53 +00:00
lukem 0ffad69384 add RCSIDs 2001-11-10 10:59:08 +00:00
bjh21 ec2fc79a18 Diagnostic panics should be enabled when DIAGNOSTIC is defined, not undefined. 2001-11-07 20:04:52 +00:00
simonb 2d0469db06 Remove so variables that are only ever set and never referenced. 2001-10-13 23:25:58 +00:00
sommerfeld 181c4513dc Add fifo_putpages() placebo so that the vnode's uobj is unlocked. 2001-09-22 22:35:18 +00:00
chs cd31160db9 fix nfs_bmap() so that it works for both genfs_{get,put}pages() and swap/vnd. 2001-09-20 08:22:04 +00:00
chs 64c6d1d2dc a whole bunch of changes to improve performance and robustness under load:
- remove special treatment of pager_map mappings in pmaps.  this is
   required now, since I've removed the globals that expose the address range.
   pager_map now uses pmap_kenter_pa() instead of pmap_enter(), so there's
   no longer any need to special-case it.
 - eliminate struct uvm_vnode by moving its fields into struct vnode.
 - rewrite the pageout path.  the pager is now responsible for handling the
   high-level requests instead of only getting control after a bunch of work
   has already been done on its behalf.  this will allow us to UBCify LFS,
   which needs tighter control over its pages than other filesystems do.
   writing a page to disk no longer requires making it read-only, which
   allows us to write wired pages without causing all kinds of havoc.
 - use a new PG_PAGEOUT flag to indicate that a page should be freed
   on behalf of the pagedaemon when it's unlocked.  this flag is very similar
   to PG_RELEASED, but unlike PG_RELEASED, PG_PAGEOUT can be cleared if the
   pageout fails due to eg. an indirect-block buffer being locked.
   this allows us to remove the "version" field from struct vm_page,
   and together with shrinking "loan_count" from 32 bits to 16,
   struct vm_page is now 4 bytes smaller.
 - no longer use PG_RELEASED for swap-backed pages.  if the page is busy
   because it's being paged out, we can't release the swap slot to be
   reallocated until that write is complete, but unlike with vnodes we
   don't keep a count of in-progress writes so there's no good way to
   know when the write is done.  instead, when we need to free a busy
   swap-backed page, just sleep until we can get it busy ourselves.
 - implement a fast-path for extending writes which allows us to avoid
   zeroing new pages.  this substantially reduces cpu usage.
 - encapsulate the data used by the genfs code in a struct genfs_node,
   which must be the first element of the filesystem-specific vnode data
   for filesystems which use genfs_{get,put}pages().
 - eliminate many of the UVM pagerops, since they aren't needed anymore
   now that the pager "put" operation is a higher-level operation.
 - enhance the genfs code to allow NFS to use the genfs_{get,put}pages
   instead of a modified copy.
 - clean up struct vnode by removing all the fields that used to be used by
   the vfs_cluster.c code (which we don't use anymore with UBC).
 - remove kmem_object and mb_object since they were useless.
   instead of allocating pages to these objects, we now just allocate
   pages with no object.  such pages are mapped in the kernel until they
   are freed, so we can use the mapping to find the page to free it.
   this allows us to remove splvm() protection in several places.

The sum of all these changes improves write throughput on my
decstation 5000/200 to within 1% of the rate of NetBSD 1.5
and reduces the elapsed time for "make release" of a NetBSD 1.5
source tree on my 128MB pc to 10% less than a 1.5 kernel took.
2001-09-15 20:36:31 +00:00
chs f0af9f581b add getpages/putpages entries for spec vnodes. 2001-08-17 05:54:36 +00:00
itojun 974a4e79a0 don't panic on mknod(2) over NFS. PR 13705. 2001-08-14 05:31:55 +00:00
assar bec71dc090 change vop_symlink and vop_mknod to return vpp (the created node)
refed, so that the caller can actually use it.  update callers and
file systems that implement these vnode operations
2001-07-24 15:39:30 +00:00
lukem 7edbb27e74 delint lvalue cast abuse 2001-06-07 01:04:40 +00:00
chs 45701591c6 add a genfs_mmap() and change all of the disk-based filesystems
to implement VOP_MMAP() with the genfs version, in preparation for
actually using this VOP.
2001-05-28 02:50:51 +00:00
fvdl faa28e2580 Lock vp in nfs_link while we're busy with it (doing VOP_FSYNC, etc). 2001-05-14 18:51:33 +00:00
fvdl 9dc4bbb990 Don't forget to unlock the vnode returned by cache_lookup if the
subsequent access check fails. Don't overwrite the error code
returned by cache_lookup. Remove a piece of redundant code.

Should fix kern/12680.
2001-04-20 11:22:02 +00:00
enami 6b949f72fb Unlock the rename target vnode after sillyrename'ing it. 2001-02-11 01:09:04 +00:00
fvdl 9f39c3a967 Get locking in rmdir right. Don't unlock a vnode when passing its
associated nfsnode to nfs_lookitup, it is not needed, and fixes
nfs_remove.
2001-02-06 15:26:25 +00:00
fvdl d4e6a2c4e1 Do actual vnode locking for NFS. 2001-02-06 11:40:02 +00:00
jdolecek d9466585b7 make filesystem vnodeop, specop, fifoop and vnodeopv_* arrays const 2001-01-22 12:17:35 +00:00
chs 395f8c2177 initialize read creds in nfs_open() too. 2000-12-12 17:13:17 +00:00
chs d324e2eb55 in nfs_open(), initialize the write creds if we're opening for writing.
otherwise we would never set them if we only modify the file via mmap().
2000-11-30 07:24:12 +00:00
chs aeda8d3b77 Initial integration of the Unified Buffer Cache project. 2000-11-27 08:39:39 +00:00
chs 51c256aa5a in nfs_flush(), only play games with B_NOCACHE for VREG vnodes.
if we do this for VBLK vnodes which are in use by softdep mounts,
brelse() will mark the buffer B_INVAL as well, which makes the
softdep code very unhappy.
2000-11-08 05:20:32 +00:00
itojun b834fb62c3 check in_ifaddr only if INET is compiled 2000-10-02 04:28:13 +00:00
bjh21 1f4240a461 Extend NFS_V2_ONLY to remove NQNFS lease support as well. Saves another 10k. 2000-09-19 23:26:25 +00:00
fvdl 861339828d Update for VOP_FSYNC parameter change. Simplify nfs_flush. 2000-09-19 22:18:03 +00:00
bjh21 33daa8de6b New kernel option, NFS_V2_ONLY, which aims to reduce the NFS client to just
that required to support NFSv2 mounts.  Not finished yet, but already
provides some 44k of saving in code size on arm26.  More savings, and some
documentation, are still to come.
2000-09-19 17:04:50 +00:00
fvdl 3ec253a800 Fix bug in access cache that might result in permission being denied
needlessly. From Matthias Drochner.
2000-09-19 00:00:18 +00:00
thorpej 7cc27a88c0 Convert namei pathname buffer allocation to use the pool allocator. 2000-08-03 20:41:05 +00:00
thorpej d07efbc8b8 MALLOC()/FREE() are not to be used for variable size allocations. 2000-08-03 06:15:02 +00:00
jdolecek b0fb24279c change the lf_advlock() arguments from
int     lf_advlock __P((struct lockf **,
           off_t, caddr_t, int, struct flock *, int));
to

int     lf_advlock __P((struct vop_advlock_args *, struct lockf **, off_t));

This matches common usage and is also compatible with similar change
in FreeBSD (though they use u_quad_t as last arg).
2000-07-22 15:26:11 +00:00
mrg 6eeafef261 remove include of <vm/vm.h> 2000-06-27 17:52:28 +00:00
enami c7534ab8ba - Try to commit another buffer even if previous commit failed except the
case that write verf is changed.  Suggested by mycroft@netbsd.org.
- Reset wcred to NULL (i.e., write credential isn't decieded) everytime
  before gathering buffer for new commit, so that there is a chance to
  the commit request is merged.
2000-05-26 08:36:48 +00:00
enami e79a50b93f In nfs_flush, if the previous commit succeeded and we may have more
uncommitted dirty buffer, attempt to commit them.
2000-05-25 23:28:44 +00:00
augustss 13e9027f58 Remove more register declarations. 2000-03-30 13:44:53 +00:00
augustss 8529438fe6 Remove register declarations. 2000-03-30 12:51:13 +00:00
simonb 3e3701895d Delete redundant decls of fifo_vnodeop_p - it's in <miscfs/fifofs/fifo.h>.
Don't need <sys/conf.h> here.
2000-03-30 02:45:19 +00:00
fvdl 5a7300902c Insert an extra VOP_ACCESS check in nfs_lookup, to avoid cached access
mishaps for lookup and getattr. Closes PR 8884.

While at it, cache access RPCs.
1999-11-29 23:34:00 +00:00
fvdl 0b1963121a Add Kirk McKusick's soft updates code to the trunk. Not enabled by
default, as the copyright on the main file (ffs_softdep.c) is such
that is has been put into gnusrc. options SOFTDEP will pull this
in. This code also contains the trickle syncer.

Bump version number to 1.4O
1999-11-15 18:49:07 +00:00
jdolecek 2ac419a152 Adapt to cache_lookup() changes.
XXX I had no chance to actually test the changes for nfs, but hopefully I got
it right.

Tested by: jdolecek
Rewieved by: wrstuden
1999-09-05 14:28:26 +00:00
wrstuden 3bf14d81e9 Add support for fcntl(2) to generate VOP_FCNTL calls. Any fcntl
call with F_FSCTL set and F_SETFL calls generate calls to a new
fileop fo_fcntl. Add genfs_fcntl() and soo_fcntl() which return 0
for F_SETFL and EOPNOTSUPP otherwise. Have all leaf filesystems
use genfs_fcntl().

Reviewed by: thorpej
Tested by: wrstuden
1999-08-03 20:19:16 +00:00
wrstuden 3954583ce7 Teach nfs_lookup() to set PDIRUNLOCK when appropriate. Should resolve
PR 8051 by Konrad Schroder.
1999-08-02 18:58:23 +00:00
thorpej d7f9efdafc In nfs_create(), make sure error is reset to 0 if we restart the operation. 1999-07-29 17:01:21 +00:00
wrstuden 5e77d9fec1 Teach nfs_lookup to clear PDIRUNLOCK. 1999-07-08 22:53:08 +00:00
fvdl 5958c68bc5 Be more correct with attribute structures for setattr RPCs and friends,
so that picky servers (e.g. Solaris 7) don't refuse our requests. Move
some code into a macro, and a bit of KNF. From OpenBSD.
1999-05-29 01:22:03 +00:00
mrg d2397ac5f7 completely remove Mach VM support. all that is left is the all the
header files as UVM still uses (most of) these.
1999-03-24 05:50:49 +00:00