Date: Tue, 18 Sep 2012 20:28:55 +0000 (UTC) From: Gleb Smirnoff <glebius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r240676 - head/sys/vm Message-ID: <201209182028.q8IKStPK056964@svn.freebsd.org>
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Author: glebius Date: Tue Sep 18 20:28:55 2012 New Revision: 240676 URL: http://svn.freebsd.org/changeset/base/240676 Log: If caller specifies UMA_ZONE_OFFPAGE explicitly, then do not waste memory in an allocation for a slab. Reviewed by: jeff Modified: head/sys/vm/uma_core.c Modified: head/sys/vm/uma_core.c ============================================================================== --- head/sys/vm/uma_core.c Tue Sep 18 20:28:01 2012 (r240675) +++ head/sys/vm/uma_core.c Tue Sep 18 20:28:55 2012 (r240676) @@ -1127,7 +1127,9 @@ keg_small_init(uma_keg_t keg) keg->uk_rsize = rsize; keg->uk_ppera = 1; - if (keg->uk_flags & UMA_ZONE_REFCNT) { + if (keg->uk_flags & UMA_ZONE_OFFPAGE) { + shsize = 0; + } else if (keg->uk_flags & UMA_ZONE_REFCNT) { rsize += UMA_FRITMREF_SZ; /* linkage & refcnt */ shsize = sizeof(struct uma_slab_refcnt); } else {
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