Date: Sun, 24 Feb 2013 16:10:43 +0000 (UTC) From: Attilio Rao <attilio@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r247223 - user/attilio/vmc-playground/sys/vm Message-ID: <201302241610.r1OGAhsR097035@svn.freebsd.org>
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Author: attilio Date: Sun Feb 24 16:10:43 2013 New Revision: 247223 URL: http://svnweb.freebsd.org/changeset/base/247223 Log: Do not call vm_radix_lookup_ge() in the reservation system unless it is absolutely necessary. Sponsored by: EMC / Isilon storage division Submitted by: alc Modified: user/attilio/vmc-playground/sys/vm/vm_reserv.c Modified: user/attilio/vmc-playground/sys/vm/vm_reserv.c ============================================================================== --- user/attilio/vmc-playground/sys/vm/vm_reserv.c Sun Feb 24 16:08:37 2013 (r247222) +++ user/attilio/vmc-playground/sys/vm/vm_reserv.c Sun Feb 24 16:10:43 2013 (r247223) @@ -349,8 +349,9 @@ vm_reserv_alloc_contig(vm_object_t objec rv = vm_reserv_from_page(mpred); if (rv->object == object && vm_reserv_has_pindex(rv, pindex)) goto found; - } - msucc = vm_radix_lookup_ge(&object->rtree, pindex); + msucc = TAILQ_NEXT(mpred, listq); + } else + msucc = vm_radix_lookup_ge(&object->rtree, pindex); if (msucc != NULL) { KASSERT(msucc->pindex > pindex, ("vm_reserv_alloc_page: pindex already allocated")); @@ -503,8 +504,9 @@ vm_reserv_alloc_page(vm_object_t object, rv = vm_reserv_from_page(mpred); if (rv->object == object && vm_reserv_has_pindex(rv, pindex)) goto found; - } - msucc = vm_radix_lookup_ge(&object->rtree, pindex); + msucc = TAILQ_NEXT(mpred, listq); + } else + msucc = vm_radix_lookup_ge(&object->rtree, pindex); if (msucc != NULL) { KASSERT(msucc->pindex > pindex, ("vm_reserv_alloc_page: pindex already allocated"));
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