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author | jeff <jeff@FreeBSD.org> | 2002-06-17 22:02:41 +0000 |
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committer | jeff <jeff@FreeBSD.org> | 2002-06-17 22:02:41 +0000 |
commit | 030d3fdb720958d03b806333c701404e96a45088 (patch) | |
tree | fe7766503110bc305fe17c75033e53e8bff19901 /sys/vm/uma.h | |
parent | ba0c1d407b5f3469a8026b32d1ea0c5605c9018a (diff) | |
download | FreeBSD-src-030d3fdb720958d03b806333c701404e96a45088.zip FreeBSD-src-030d3fdb720958d03b806333c701404e96a45088.tar.gz |
- 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.
Diffstat (limited to 'sys/vm/uma.h')
-rw-r--r-- | sys/vm/uma.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sys/vm/uma.h b/sys/vm/uma.h index fb144cf..2b35360 100644 --- a/sys/vm/uma.h +++ b/sys/vm/uma.h @@ -173,6 +173,7 @@ uma_zone_t uma_zcreate(char *name, size_t size, uma_ctor ctor, uma_dtor dtor, #define UMA_ZONE_MALLOC 0x0010 /* For use by malloc(9) only! */ #define UMA_ZONE_NOFREE 0x0020 /* Do not free slabs of this type! */ #define UMA_ZONE_MTXCLASS 0x0040 /* Create a new lock class */ +#define UMA_ZONE_VM 0x0080 /* Used for internal vm datastructures */ /* Definitions for align */ #define UMA_ALIGN_PTR (sizeof(void *) - 1) /* Alignment fit for ptr */ |