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rescinded 22 July 1999. Proofed by myself and Theo.
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ok art@ costa@
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Two days after commit people report serious lockups all over the place.
Back out nfs locking changes.
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well (not at all) with shortages of the vm_map where the pages are mapped
(usually kmem_map).
Try to deal with it:
- group all information the backend allocator for a pool in a separate
struct. The pool will only have a pointer to that struct.
- change the pool_init API to reflect that.
- link all pools allocating from the same allocator on a linked list.
- Since an allocator is responsible to wait for physical memory it will
only fail (waitok) when it runs out of its backing vm_map, carefully
drain pools using the same allocator so that va space is freed.
(see comments in code for caveats and details).
- change pool_reclaim to return if it actually succeeded to free some
memory, use that information to make draining easier and more efficient.
- get rid of PR_URGENT, noone uses it.
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remove register
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machines or some configurations or in some phase of the moon (we actually
don't know when or why) files disappeared. Since we've not been able to
track down the problem in two weeks intense debugging and we need -current
to be stable, back out everything to a state it had before UBC.
We apologise for the inconvenience.
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code is written mostly by Chuck Silvers <chuq@chuq.com>/<chs@netbsd.org>.
Tested for the past few weeks by many developers, should be in a pretty stable
state, but will require optimizations and additional cleanups.
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While in the area, convert nfs node allocation from malloc to pool and do
some cleanups.
Based on the UBC changes in NetBSD. niklas@ ok.
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nfs_nget.
Root vnode no longer pinned in inode cache. Also, forceable unmounts of an
nfs file system now work even if there are extra references to the NFS root.
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Add an extra flag to hashinit telling if it should wait in malloc.
update all calls to hashinit.
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to be vop_generic_revoke, vop_generic_bwrite, vop_generic_islocked,
vop_generic_lock and vop_generic_unlock.
Create vop_generic_abortop and propogate change to all file systems.
Fix PR/371.
Get rid of locking in NULLFS (should be mostly unnecessary now except for
forced unmounts).
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the head of the cookie list. Fixes PR 3215, fix supplied by Hiroshi Tezuka
<tezuka@trc.rwcp.or.jp>. Should also fix M_NFSDIROFF memory leak; fvdl
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(NetBSD's was really just a Lite2's, but w/ 64bit support)
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Open's patches kept in. i'll possibly take a look at Lite2 soon,
is there smth usefull ?..
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