src-test2/sys/vm/vm_init.c, branch release/8.4.0FreeBSD source treehttps://cgit-dev.freebsd.org/src-test2/atom?h=release%2F8.4.02009-03-09T19:35:20ZAdjust some variables (mostly related to the buffer cache) that hold2009-03-09T19:35:20ZJohn Baldwinjhb@FreeBSD.org2009-03-09T19:35:20Zurn:sha1:5bd65606f4466e6023888b87387211adb460edc8
address space sizes to be longs instead of ints. Specifically, the follow
values are now longs: runningbufspace, bufspace, maxbufspace,
bufmallocspace, maxbufmallocspace, lobufspace, hibufspace, lorunningspace,
hirunningspace, maxswzone, maxbcache, and maxpipekva. Previously, a
relatively small number (~ 44000) of buffers set in kern.nbuf would result
in integer overflows resulting either in hangs or bogus values of
hidirtybuffers and lodirtybuffers. Now one has to overflow a long to see
such problems. There was a check for a nbuf setting that would cause
overflows in the auto-tuning of nbuf. I've changed it to always check and
cap nbuf but warn if a user-supplied tunable would cause overflow.
Note that this changes the ABI of several sysctls that are used by things
like top(1), etc., so any MFC would probably require a some gross shims
to allow for that.
MFC after: 1 month
Introduce a new parameter "superpage_align" to kmem_suballoc() that is2008-05-10T21:46:20ZAlan Coxalc@FreeBSD.org2008-05-10T21:46:20Zurn:sha1:3202ed7523214d5e14c66efaf300d23c4a5d8cfe
used to request superpage alignment for the submap.
Request superpage alignment for the kmem_map.
Pass VMFS_ANY_SPACE instead of TRUE to vm_map_find(). (They are currently
equivalent but VMFS_ANY_SPACE is the new preferred spelling.)
Remove a stale comment from kmem_malloc().
In keeping with style(9)'s recommendations on macros, use a ';'2008-03-16T10:58:09ZRobert Watsonrwatson@FreeBSD.org2008-03-16T10:58:09Zurn:sha1:237fdd787b20699fc2c01387011b06a9ce746cfa
after each SYSINIT() macro invocation. This makes a number of
lightweight C parsers much happier with the FreeBSD kernel
source, including cflow's prcc and lxr.
MFC after: 1 month
Discussed with: imp, rink
Add the vm.exec_map_entries tunable and read-only sysctl, which controls2005-04-25T19:22:05ZKris Kennawaykris@FreeBSD.org2005-04-25T19:22:05Zurn:sha1:f5fca0d8be8677631289562ae598160d1f94e723
the number of entries in exec_map (maximum number of simultaneous execs
that can be handled by the kernel). The default value of 16 is
insufficient on heavily loaded machines (particularly SMP machines), and
if it is exceeded then executing further processes will generate a SIGABRT.
This is a workaround until a better solution can be implemented.
Reviewed by: alc
MFC after: 3 days
/* -> /*- for license, minor formatting changes2005-01-07T02:29:27ZWarner Loshimp@FreeBSD.org2005-01-07T02:29:27Zurn:sha1:60727d8b86294910d41cbda1a50a855ea0537449Remove dead code. A vm_map's first_free is never NULL (even if the map is2004-08-07T05:58:31ZAlan Coxalc@FreeBSD.org2004-08-07T05:58:31Zurn:sha1:e0b47a134b54223952fc73d5b7fb377b2e81bdff
full).
(This is preparation for an O(log n) implementation of vm_map_findspace().)
Submitted by: Mark W. Krentel
The demise of vm_pager_map_page() in revision 1.93 of vm/vm_pager.c permits2004-04-08T19:08:49ZAlan Coxalc@FreeBSD.org2004-04-08T19:08:49Zurn:sha1:41f1b2c4603c45fb5d2fda9916eaf739f83dacfb
the reduction of the pager map's size by 8M bytes. In other words, eight
megabytes of largely wasted KVA are returned to the kernel map for use
elsewhere.
Remove advertising clause from University of California Regent's license,2004-04-06T20:15:37ZWarner Loshimp@FreeBSD.org2004-04-06T20:15:37Zurn:sha1:05eb3785e755044e8f30f064b5be4fe1ac788dbd
per letter dated July 22, 1999.
Approved by: core
Remove unused arguments from pmap_init().2004-04-05T00:37:50ZAlan Coxalc@FreeBSD.org2004-04-05T00:37:50Zurn:sha1:bdb93eb2486e0e2e7a2720bd8aef2c3511040723Eliminate unused arguments from vm_page_startup().2004-04-04T23:33:36ZAlan Coxalc@FreeBSD.org2004-04-04T23:33:36Zurn:sha1:889eb0fc62b882a3b1eafb985ad794cfbd3afad5