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154 Commits

Author SHA1 Message Date
sommerfe f1a508e354 Prevent deadlock cited in PR4629 from crashing the system. (copyout 
and system call now just return EFAULT).  A complete fix will
presumably have to wait for UBC and/or for vnode locking protocols to
be revamped to allow use of shared locks.
 1999-03-25 00:20:35 +00:00
cgd 9639d2bb98 modify udv_attach() and its caller (uvm_mmap()) so that it's passed the 
offset and size of the requested region to be mapped, so that the
udv_attach() can use the device d_mmap() entry to check mappability
of the requested region.
 1999-03-24 03:52:41 +00:00
cgd 37c88c58da after discussion with chuck, nuke pgo_attach from uvm_pagerops 1999-03-24 03:45:27 +00:00
chs a65cf876d6 VHOLD() must be called at splbio() since HOLDRELE() is called 
from the iodone handler.
 1999-03-18 01:45:29 +00:00
chs e2d0bfbb09 remove a debugging printf. 1999-03-15 07:55:19 +00:00
kleink b0fe22c29d Have unimplemented/unsupported system calls (madvise(), mincore(), sbrk(), 
sstk()) fail with ENOSYS.
 1999-03-09 12:18:22 +00:00
chs 0c38ab98fa fix printf arg types. 1999-03-04 06:48:54 +00:00
chs 381e042ff6 fix printf format types. 1999-03-04 06:48:15 +00:00
mrg 3743c9e91d handle SWAP_DUMPDEV 1999-02-23 15:58:28 +00:00
mrg 08fd4f3f47 80 cols. 1999-01-31 09:27:18 +00:00
bouyer b87a535a9f A small typo fix, + enclose "used_vnode_size = %qu" debug printf inside 
#ifdef DEBUG/#endif
 1999-01-29 12:56:17 +00:00
chuck 486cfd0e5a comment cleanup, shift around the inline stuff a bit, 
rename VM_AMAP_PPREF (to UVM_AMAP_PPREF).
 1999-01-28 14:46:27 +00:00
chuck 44f5fc2839 cleanup/reorg: 
- break anon related functions out of uvm_amap.c and put them in their own
  file (uvm_anon.c).  includes break up uvm_anon_init into an amap and an
  an anon init function
- ensure that only functions within the amap module access amap structure
  fields (add macros to amap api as needed)
 1999-01-24 23:53:14 +00:00
chs 0c2374e586 fix a precedence problem in uvm_mk_pcluster() which prevented 
clustering of vnode pageouts.  this probably makes no difference
since most apps don't write via the pagecache anyway... yet.
 1999-01-22 08:00:35 +00:00
marc e21b4568e2 When a reference is made to a hole in a swap file, panic. The optimal 
thing would be to allocate the block, but I don't know how to do this.
The panic is preferable to the random memory corruption the old code
was causing.
 1998-12-26 06:25:59 +00:00
chuck cc2f45083b update outdated an_swslot comments 1998-11-20 19:37:06 +00:00
mrg d39ed4e552 check the return value of d_mmap before pmap_phys_address() gets hold of it. 1998-11-19 05:23:26 +00:00
chuck 281eb8b87a remove bogus permission check in uvm_map_clean(). fixes mmap/msync 
problem discussed/reported by jonathan and Andreas Wrede <andreas@planix.com>.
 1998-11-15 04:38:19 +00:00
mycroft 7c037b7009 Clear B_NOCACHE when we're done with the buffer -- although this is probably 
pointless.
 1998-11-08 19:41:49 +00:00
mycroft 6422baa1c0 Set the B_NOCACHE bit so that NFSv3 will not try to do async writes. 1998-11-08 19:37:12 +00:00
mrg 7c0d69c3ab minor KNF nits 1998-11-07 05:50:19 +00:00
chs 28411139b3 be consistent with locking of amaps and anons when freeing them. 1998-11-04 07:07:22 +00:00
chs e4c4ea06b4 remove outdated comment. 1998-11-04 07:06:05 +00:00
chs 23ed4b5656 we must unlock a vp's object's lock before calling vrele(). 1998-11-04 06:21:40 +00:00
mrg bba8470ccb KNF a missing bit. remove register. 1998-10-24 13:32:34 +00:00
tron c71ccab136 Defopt SYSVMSG, SYSVSEM and SYSVSHM. 1998-10-19 22:21:19 +00:00
chs 549cd579e5 shift by PAGE_SHIFT instead of multiplying or dividing by PAGE_SIZE. 1998-10-18 23:49:59 +00:00
tv 000978aaca Check for gcc the Right way when quashing -Wuninitialized goop. 1998-10-16 19:34:57 +00:00
chuck 025ae6bd64 remove unused share map code from UVM: 
- update calls to uvm_unmap_remove/uvm_unmap (mainonly boolean arg
	has been removed)
 - replace UVM_ET_ISMAP checks with UVM_ET_ISSUBMAP checks
 1998-10-11 23:18:20 +00:00
chuck 03939069dc remove unused share map code from UVM: 
- update uvm_faultinfo's rvaddr to orig_rvaddr to match changes from
	uvm_fault.h
 1998-10-11 23:16:20 +00:00
chuck 2d4c15ebc9 remove unused share map code from UVM: 
- replace map checks with submap checks
 - get rid of unused 'mainonly' arg in uvm_unmap/uvm_unmap_remove, simplify
	code.   update all calls to reflect this.
 - don't worry about unmapping or changing the protection of shared share
	map mappings (is_main_map no longer used).
 - remove unused uvm_map_sharemapcopy() function from fork code.
 1998-10-11 23:14:47 +00:00
chuck 1b59a238c4 remove unused share map code from UVM: 
- simplify uvm_faultinfo in uvm_fault.h (parent map tracking no longer needed)
 - adjust locking and lookup functions in uvm_fault_i.h to reflect the above
 - replace ufi.rvaddr with ufi.orig_rvaddr in uvm_fault.c since rvaddr is
	no longer needed.
 - no need to worry about share map translations in uvm_fault().  simplify.
 1998-10-11 23:07:42 +00:00
chuck 8ffef382dd remove unused share map code from UVM: 
- udv_fault() no longer has to worry about share map address translations
	on device faults.  simplify code.
 1998-10-11 23:02:31 +00:00
chuck a4d3b16d22 remove unused share map code from UVM: 
dump UVM_ET_MAP/UVM_ET_ISMAP.   if you need to detect a submap use
  UVM_ET_SUBMAP/UVM_ET_ISSUBMAP.
 1998-10-11 22:59:53 +00:00
chuck 495b6aafdc fix ppref botch. establish ppref at split time before we add the duplicate 
reference.
 1998-10-08 19:47:50 +00:00
mrg fdc5499c5f back out previous. 1998-09-30 15:44:10 +00:00
tv 8219f068e2 Declare silent success on madvise(). As an advisory call, it is harmless 
to pretend success even though it's not supported, and some emulations
rely on its success.
 1998-09-30 12:07:51 +00:00
thorpej feb1d22dcc NCPU > 1 -> MULTIPROCESSOR 1998-09-24 23:00:43 +00:00
thorpej 1e2aeb4a35 Add a comment documenting the last change. 1998-09-18 19:28:22 +00:00
thorpej 5dd4b45577 Don't use the nointr pool page allocator for the uao_swhash_elt pool. We 
need to ensure that these come from a non-pageable kernel map, otherwise
we can run into a deadlock condition (as noticed by Chuck Silvers).
 1998-09-18 19:27:20 +00:00
thorpej 28904fca48 Implement uvm_exit(), which frees VM resources when a process finishes 
exiting.
 1998-09-08 23:44:21 +00:00
pk d2d3f83fd7 Panic instead failing the syscall on an impossible condition (from Robert Elz). 
Plug possible memory leakage with the recently added device path stuff.
 1998-09-06 23:09:39 +00:00
thorpej 38e7a08bed Allocate vm_anon arrays from kernel_map, not via MALLOC(). Helps relieve 
much of UVM's kmem_map usage.
 1998-08-31 02:43:14 +00:00
thorpej d865961d77 Back out previous; I should have instrumented the benefit of this one 
first.
 1998-08-31 01:54:14 +00:00
thorpej 7338d4e403 Use the pool allocator and the "nointr" pool page allocator for vm_map's. 1998-08-31 01:50:08 +00:00
thorpej be8d09cda3 Use the pool allocator and the "nointr" pool page allocator for dynamically 
allocated vm_map_entry's.
 1998-08-31 01:10:15 +00:00
thorpej 99626224a7 Use the pool allocator and the "nointr" pool page allocator for vmspace 
structures.
 1998-08-31 00:20:26 +00:00
thorpej 694e9583aa Make sure the aobj_pager gets initialized! 1998-08-31 00:03:02 +00:00
thorpej 5a4981d9b8 Use the pool allocator w/ the "nointr" pool page allocator for uvm_aobj 
and uao_swhash_elt structures.  Also, fix a bug in uao_set_swlot() where
if setting the swslot to 0 (freeing swap resources), and no swslot was
currently allocated, a new entry would be allocated anyhow (revealed during
pool'ification).
 1998-08-31 00:01:59 +00:00
enami 71ba20edbb Define `len' as size_t rather than int so that correct type is passed 
as fourth argument of copystr.
 1998-08-30 03:08:43 +00:00