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29 Commits

Author SHA1 Message Date
wrstuden e682a080e9 In spec_close(), if we're not doing a non-blocking close and VXLOCK is 
not set, unlock the vnode before calling the device's close routine and
relock it after it returns. tty close routines will sleep waiting for
buffers to drain, which won't happen often times as the other side needs
to grab the vnode lock first.

Make all unmount routines lock the device vnode before calling VOP_CLOSE().
 1999-10-16 23:53:26 +00:00
thorpej 3f176180d5 Garbage collect thread_sleep()/thread_wakeup() left over from the old 
Mach VM code.  Also nuke iprintf(), which was no longer used anywhere.

Add proclist locking where appropriate.
 1999-07-22 22:58:38 +00:00
chs 039c17eca9 remove some old #if 0'd-out debugging code. 1999-03-30 16:07:47 +00:00
chs d97d75d81b add uvmexp.swpgonly and use it to detect out-of-swap conditions. 1999-03-26 17:34:15 +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
mrg 3743c9e91d handle SWAP_DUMPDEV 1999-02-23 15:58:28 +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
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
chs 549cd579e5 shift by PAGE_SHIFT instead of multiplying or dividing by PAGE_SIZE. 1998-10-18 23:49:59 +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
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
mrg edda33e00c move <vm/vm_swap.h> to <sys/swap.h>. <vm/vm_swap.h> still works for now (goes away later) 1998-08-29 17:01:14 +00:00
mrg b5f69ff667 add a `char se_path[PATH_MAX]' member to struct swapent, that 
the pathname of the swap device is saved into.  add a char *swd_path
member to struct swapdev, that contains a copy of the pathname
(using malloc(9)).  rename swapctl(2)'s SWAP_STATS to SWAP_OSTATS,
and add a new SWAP_STATS command (number).  make swapctl(SWAP_STATS,
...) [new version] copy the path out.  if COMPAT_13, also include
support for SWAP_OSTATS.  also fix a minor bug in swapctl(2).

the point of this is that swapfiles are now shown in `swapctl -l'.
 1998-08-29 13:27:50 +00:00
eeh a2dd74ed79 Merge paddr_t changes into the main branch. 1998-08-13 02:10:37 +00:00
perry 2c8717021d bzero->memset, bcopy->memcpy, bcmp->memcmp 1998-08-09 22:36:37 +00:00
thorpej 7d8833a179 Put back swap_data_lock, which was apparently deleted accidentally during 
the last round of changes.  (I noticed it because I run my kernels w/
LOCKDEBUG.)
 1998-07-24 18:46:02 +00:00
pk 363f729ada Use memory pools to allocate swap buffers. Allocations are all dynamic; 
in particular `nswbuf' is gone, as is the private "struct buf" list that
was previously maintained in here.
 1998-07-23 20:51:09 +00:00
pk f640e832b1 Make sure to release buffers only once. 1998-07-08 18:41:24 +00:00
ross ebcb47db53 Correct an expression that tried to compute the swap size in bytes using 
an int object, this sometimes prevented swap_on() of a dev/file > 2^31 bytes.
 1998-06-17 07:38:28 +00:00
mrg dae55b7b7b fix a problem with swapping to files where a new variable introduced was not 
later incremented correctedly, causing the wrong data to be paged out, which
then caused general lossage later when the data was paged in and the process
tried to use it.  found by pk.
 1998-05-01 01:40:02 +00:00
mrg 8106d13596 KNF. 1998-03-09 00:58:55 +00:00
fvdl e5bc90f40c Merge with Lite2 + local changes 1998-03-01 02:20:01 +00:00
thorpej 1e3e1bfe09 Include the NFS option header. 1998-02-19 00:55:04 +00:00
mrg d90485202c - add defopt's for UVM, UVMHIST and PMAP_NEW. 
- remove unnecessary UVMHIST_DECL's.
 1998-02-10 14:08:44 +00:00
mrg d9b2f81e27 move pdhist initialisation to the same place as maphist. also, declare 
the history buffers are "struct uvm_history_ent" to ensure proper
alignment (eg, alpha).  this fixes a boottime panic when the pdhist was
used before it had been initialised.
 1998-02-08 07:52:28 +00:00
mrg 1f6b921cf7 restore rcsids 1998-02-07 11:07:38 +00:00
thorpej 9eb328b495 RCS ID police. 1998-02-06 22:26:13 +00:00
mrg f2caacc717 initial import of the new virtual memory system, UVM, into -current. 
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code.  i provided some help
getting swap and paging working, and other bug fixes/ideas.  chuck
silvers <chuq@chuq.com> also provided some other fixes.

this is the UVM kernel code portion.


this will be KNF'd shortly.  :-)
 1998-02-05 06:25:08 +00:00