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| author | alc <alc@FreeBSD.org> | 2013-03-17 20:40:31 +0000 |
|---|---|---|
| committer | alc <alc@FreeBSD.org> | 2013-03-17 20:40:31 +0000 |
| commit | 6cbd8f24b910e195dc43695599da470550138fcf (patch) | |
| tree | ce88415b77feafabf55fbefbb77f5a786c58d3cb /sys/vm/vm_reserv.c | |
| parent | 8a01505f5e18b990ce2f528a0b4c69b542d976fa (diff) | |
| download | FreeBSD-src-6cbd8f24b910e195dc43695599da470550138fcf.zip FreeBSD-src-6cbd8f24b910e195dc43695599da470550138fcf.tar.gz | |
The calls to vm_radix_lookup_ge() by vm_reserv_alloc_{contig,page}() can
be eliminated. If the calls to vm_radix_lookup_le() return NULL, then
the page at the head of the object's memq must be the page with the least
pindex greater than the specified pindex.
Reviewed by: attilio
Sponsored by: EMC / Isilon Storage Division
Diffstat (limited to 'sys/vm/vm_reserv.c')
| -rw-r--r-- | sys/vm/vm_reserv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sys/vm/vm_reserv.c b/sys/vm/vm_reserv.c index bb071bd..4d36385 100644 --- a/sys/vm/vm_reserv.c +++ b/sys/vm/vm_reserv.c @@ -352,7 +352,7 @@ vm_reserv_alloc_contig(vm_object_t object, vm_pindex_t pindex, u_long npages, goto found; msucc = TAILQ_NEXT(mpred, listq); } else - msucc = vm_radix_lookup_ge(&object->rtree, pindex); + msucc = TAILQ_FIRST(&object->memq); if (msucc != NULL) { KASSERT(msucc->pindex > pindex, ("vm_reserv_alloc_page: pindex already allocated")); @@ -507,7 +507,7 @@ vm_reserv_alloc_page(vm_object_t object, vm_pindex_t pindex) goto found; msucc = TAILQ_NEXT(mpred, listq); } else - msucc = vm_radix_lookup_ge(&object->rtree, pindex); + msucc = TAILQ_FIRST(&object->memq); if (msucc != NULL) { KASSERT(msucc->pindex > pindex, ("vm_reserv_alloc_page: pindex already allocated")); |
