Date: Mon, 15 Jan 2018 00:47:33 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r327981 - user/markj/netdump/sys/vm Message-ID: <201801150047.w0F0lXMC042989@repo.freebsd.org>
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Author: markj Date: Mon Jan 15 00:47:33 2018 New Revision: 327981 URL: https://svnweb.freebsd.org/changeset/base/327981 Log: Add a flag to disable per-CPU item caching in a given zone. Modified: user/markj/netdump/sys/vm/uma.h user/markj/netdump/sys/vm/uma_core.c Modified: user/markj/netdump/sys/vm/uma.h ============================================================================== --- user/markj/netdump/sys/vm/uma.h Mon Jan 15 00:29:17 2018 (r327980) +++ user/markj/netdump/sys/vm/uma.h Mon Jan 15 00:47:33 2018 (r327981) @@ -265,8 +265,8 @@ uma_zone_t uma_zcache_create(char *name, int size, uma * information in the vm_page. */ #define UMA_ZONE_SECONDARY 0x0200 /* Zone is a Secondary Zone */ -/* 0x0400 Unused */ -#define UMA_ZONE_MAXBUCKET 0x0800 /* Use largest buckets */ +#define UMA_ZONE_NOBUCKET 0x0400 /* Do not use buckets. */ +#define UMA_ZONE_MAXBUCKET 0x0800 /* Use largest buckets. */ #define UMA_ZONE_CACHESPREAD 0x1000 /* * Spread memory start locations across * all possible cache lines. May Modified: user/markj/netdump/sys/vm/uma_core.c ============================================================================== --- user/markj/netdump/sys/vm/uma_core.c Mon Jan 15 00:29:17 2018 (r327980) +++ user/markj/netdump/sys/vm/uma_core.c Mon Jan 15 00:47:33 2018 (r327981) @@ -1659,10 +1659,12 @@ zone_ctor(void *mem, int size, void *udata, int flags) } out: - if ((arg->flags & UMA_ZONE_MAXBUCKET) == 0) - zone->uz_count = bucket_select(zone->uz_size); - else + if ((arg->flags & UMA_ZONE_MAXBUCKET) != 0) zone->uz_count = BUCKET_MAX; + else if ((arg->flags & UMA_ZONE_NOBUCKET) != 0) + zone->uz_count = 0; + else + zone->uz_count = bucket_select(zone->uz_size); zone->uz_count_min = zone->uz_count; return (0);
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