Commit Graph

9 Commits

Author SHA1 Message Date
Jeff Roberson
3370c5bfd7 - Remove bogus use of kmem_alloc that was inherited from the old zone
allocator.
- Properly set M_ZERO when talking to the back end page allocators for
  non malloc zones.  This forces us to zero fill pages when they are first
  brought into a cache.
- Properly handle M_ZERO in uma_zalloc_internal.  This fixes a problem where
  per cpu buckets weren't always getting zeroed.
2002-06-19 20:49:44 +00:00
Jeff Roberson
18aa2de5a7 - Introduce the new M_NOVM option which tells uma to only check the currently
allocated slabs and bucket caches for free items.  It will not go ask the vm
  for pages.  This differs from M_NOWAIT in that it not only doesn't block, it
  doesn't even ask.

- Add a new zcreate option ZONE_VM, that sets the BUCKETCACHE zflag.  This
  tells uma that it should only allocate buckets out of the bucket cache, and
  not from the VM.  It does this by using the M_NOVM option to zalloc when
  getting a new bucket.  This is so that the VM doesn't recursively enter
  itself while trying to allocate buckets for vm_map_entry zones.  If there
  are already allocated buckets when we get here we'll still use them but
  otherwise we'll skip it.

- Use the ZONE_VM flag on vm map entries and pv entries on x86.
2002-06-17 22:02:41 +00:00
Andrew R. Reiter
c3bdc05fb9 - Changed the size element of uma_zctor_args to be size_t instead of int.
- Changed uma_zcreate to accept the size argument as a size_t intead of
  int.

Approved by:	jeff
2002-05-02 07:36:30 +00:00
Jeff Roberson
2cc35ff9c6 Move the implementation of M_ZERO into UMA so that it can be passed to
uma_zalloc and friends.  Remove this functionality from the malloc wrapper.

Document this change in uma.h and adjust variable names in uma_core.
2002-04-30 04:26:34 +00:00
Jeff Roberson
28bc44195c Add a new zone flag UMA_ZONE_MTXCLASS. This puts the zone in it's own
mutex class.  Currently this is only used for kmapentzone because kmapents
are are potentially allocated when freeing memory.  This is not dangerous
though because no other allocations will be done while holding the
kmapentzone lock.
2002-04-29 23:45:41 +00:00
Jeff Roberson
9c2cd7e5a9 Implement uma_zdestroy(). It's prototype changed slightly. I decided that I
didn't like the wait argument and that if you were removing a zone it had
better be empty.

Also, I broke out part of hash_expand and made a seperate hash_free() for use
in uma_zdestroy.
2002-04-08 04:48:58 +00:00
Jeff Roberson
c235bfa551 Spelling correction; s/seperate/separate/g
Submitted by:	eric
2002-04-07 22:56:48 +00:00
Jeff Roberson
736ee5907f Add uma_zone_set_max() to add enforced limits to non vm obj backed zones. 2002-03-20 05:28:34 +00:00
Jeff Roberson
8355f576a9 This is the first part of the new kernel memory allocator. This replaces
malloc(9) and vm_zone with a slab like allocator.

Reviewed by:	arch@
2002-03-19 09:11:49 +00:00