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1147 Commits

Author SHA1 Message Date
martin 813190b43d Swap sysctl -d description of vm.filemin and vm.execmin. Noted by 
Raymond Meyer on current-users.
 2008-03-07 08:44:51 +00:00
yamt 5f4f3b8ca8 fix "stale map" assertions. PR/38153 from Sarton O'Brien. 2008-03-04 09:32:01 +00:00
yamt 19b9de9868 uvm_swap_io: if pagedaemon, don't wait for iobuf. 2008-02-29 20:35:23 +00:00
yamt 569bb6b4dc update comment 2008-02-29 12:08:04 +00:00
matt 41b4feae9a Convert two inlines from old-style-definitions to ansi. 2008-02-27 19:38:57 +00:00
ad 0fe23ea49b Assert uvm_fpageqlock is held in a few more places. 2008-02-27 14:24:24 +00:00
ad 185d25c158 Minor corrections to comments. 2008-02-27 14:23:33 +00:00
yamt 0a2b10db61 uao_put: fix a race with pageout. 2008-02-27 13:46:20 +00:00
chris 855792073c Add some more missing pmap_update()s following pmap_kremove()s. 2008-02-23 17:27:58 +00:00
yamt f7048cc403 uvm_uarea_init: fix compilation where PAGE_SIZE is not a constant. (sparc) 
reported by Tom Spindler.
 2008-02-08 11:49:40 +00:00
yamt 79c62b78b6 nonresident_rotate: avoid too long loops which can happen on some workloads. 2008-02-07 12:27:38 +00:00
yamt 7608362b58 swapcluster_flush: handle nused==0, which can happen if swapcluster_add failed. 
PR/37669 from Andrew Doran.
 2008-02-07 12:24:16 +00:00
yamt cb964fe917 uvm_uarea_init: make #if about PR_NOALIGN clearer and add a comment 
to explain it.
 2008-02-07 12:21:24 +00:00
hannken ee150e014e Lock swapdev_vp for VOP_OPEN. 
From: YAMAMOTO Takashi <yamt@netbsd.org>
 2008-01-30 14:25:21 +00:00
yamt 52838e34f5 remove a special allocator for uareas, which is no longer necessary. 
use pool_cache instead.
 2008-01-28 12:22:46 +00:00
hannken ce34b417f9 uvm_swap_init(): Call VOP_OPEN() on swapdev_vp to make I/O through the 
swap device work with specnodes.

Ok: Andrew Doran <ad@netbsd.org>
 2008-01-27 17:18:09 +00:00
reinoud 6383f534f7 Remove extra '(' that prevented kernel with UVMHIST to be compiled 2008-01-22 21:36:23 +00:00
yamt 2b40f35040 push pmap_clear_reference calls into pdpolicy code, where reference bits 
actually matter.
 2008-01-18 10:48:23 +00:00
yamt 729c3a185b unwrap short lines. 2008-01-13 16:46:47 +00:00
yamt b0fbe32ddf nonresident_rotate: micro optimization 2008-01-13 16:28:41 +00:00
yamt 74e0872eca simplify locking and remove vm_map_upgrade/downgrade. 
this fixes a deadlock due to read-lock recursion of map->lock.
 2008-01-08 13:09:55 +00:00
matt 2414d5854f Make sys_swapctl match syscallargs.h 2008-01-08 06:25:55 +00:00
ad 0664a0459b Start detangling lock.h from intr.h. This is likely to cause short term 
breakage, but the mess of dependencies has been regularly breaking the
build recently anyhow.
 2008-01-04 21:17:40 +00:00
ad 4a780c9ae2 Merge vmlocking2 to head. 2008-01-02 11:48:20 +00:00
christos 65c680cad7 Add PaX ASLR (Address Space Layout Randomization) [from elad and myself] 
For regular (non PIE) executables randomization is enabled for:
    1. The data segment
    2. The stack

For PIE executables(*) randomization is enabled for:
    1. The program itself
    2. All shared libraries
    3. The data segment
    4. The stack

(*) To generate a PIE executable:
    - compile everything with -fPIC
    - link with -shared-libgcc -Wl,-pie

This feature is experimental, and might change. To use selectively add
    options PAX_ASLR=0
in your kernel.

Currently we are using 12 bits for the stack, program, and data segment and
16 or 24 bits for mmap, depending on __LP64__.
 2007-12-26 22:11:47 +00:00
perry 970ad9314d Remove __attribute__((__noreturn__)) from things already marked __dead 
Found by the department of redundancy department.
 2007-12-24 15:46:45 +00:00
ad 9aef0fdbce Specify PR_LARGECACHE for anon_cache (which is insanely busy). 2007-12-20 23:50:00 +00:00
dsl 7e2790cf6f Convert all the system call entry points from: 
int foo(struct lwp *l, void *v, register_t *retval)
to:
    int foo(struct lwp *l, const struct foo_args *uap, register_t *retval)
Fixup compat code to not write into 'uap' and (in some cases) to actually
pass a correctly formatted 'uap' structure with the right name to the
next routine.
A few 'compat' routines that just call standard ones have been deleted.
All the 'compat' code compiles (along with the kernels required to test
build it).
98% done by automated scripts.
 2007-12-20 23:02:38 +00:00
yamt 0c38201391 add ddb "whatis" command. inspired from solaris ::whatis dcmd. 2007-12-13 02:45:09 +00:00
pooka db06a930e6 Remove cn_lwp from struct componentname. curlwp should be used 
from on.  The NDINIT() macro no longer takes the lwp parameter and
associates the credentials of the calling thread with the namei
structure.
 2007-12-08 19:29:36 +00:00
ad 371ba00b4a Allocate amaps from a pool_cache. 2007-12-08 15:46:31 +00:00
ad de874f619c Merge from vmlocking2 (use cdev_mmap()). 2007-12-08 15:33:09 +00:00
yamt bdc83d4098 g/c uvm_vnp_sync 2007-12-05 09:37:34 +00:00
yamt 83e62acd43 fix UBC_WANT_UNMAP. 
- check PMAP_CACHE_VIVT after pulling pmap.h.
	- VTEXT -> VI_TEXT.
 2007-12-05 09:35:46 +00:00
yamt e8abff70f2 constify pagerops. 2007-12-01 10:40:27 +00:00
yamt 7355a3c4f8 remove a duplicated decl. of aobj_pager. 2007-12-01 10:40:03 +00:00
yamt 062f8e82a2 use designated initiaizers for uvm_pagerops. 2007-12-01 10:18:21 +00:00
yamt 4450b52eeb uvm_pager_init: use __arraycount. 2007-12-01 10:08:21 +00:00
ad e81b22bdcb Make {anon,file,exec}pages unsigned. 2007-11-30 22:43:17 +00:00
ad e9e11b98df Use atomics to maintain uvmexp.{anon,exec,file}pages. 2007-11-29 18:07:11 +00:00
pooka 61e8303e9d Remove the "struct lwp *" argument from all VFS and VOP interfaces. 
The general trend is to remove it from all kernel interfaces and
this is a start.  In case the calling lwp is desired, curlwp should
be used.

quick consensus on tech-kern
 2007-11-26 19:01:26 +00:00
xtraeme f444fd7856 Make this build without LOCKDEBUG (the if statement that uses 
LOCKDEBUG_MEM_CHECK).
 2007-11-26 08:22:32 +00:00
yamt 1a95aafc2b uvm_map_extract: for UVM_EXTRACT_QREF, mark entries UVM_MAP_NOMERGE. 2007-11-26 08:20:46 +00:00
yamt 89169ed40b uvm_unmap1: LOCKDEBUG_MEM_CHECK for kernel_map. 2007-11-26 08:15:19 +00:00
yamt f638ba54b7 call debug_init earlier. ie. before malloc is used. 2007-11-14 11:04:07 +00:00
yamt 7bc2fdc746 g/c unused uvm_anon_pool. 2007-11-13 08:48:28 +00:00
ad d18c6ca4de Merge from vmlocking: 
- pool_cache changes.
- Debugger/procfs locking fixes.
- Other minor changes.
 2007-11-07 00:23:13 +00:00
ad d831186d55 Merge scheduler changes from the vmlocking branch. All discussed on 
tech-kern:

- Invert priority space so that zero is the lowest priority. Rearrange
  number and type of priority levels into bands. Add new bands like
  'kernel real time'.
- Ignore the priority level passed to tsleep. Compute priority for
  sleep dynamically.
- For SCHED_4BSD, make priority adjustment per-LWP, not per-process.
 2007-11-06 00:42:39 +00:00
yamt 23005df1e0 defparam PAGER_MAP_SIZE. 2007-10-25 13:03:03 +00:00
yamt c3ee5a2d35 uvm_mremap: fix alignment check for the easy cases. 2007-10-15 11:26:13 +00:00