Date: Fri, 13 Oct 2017 17:11:09 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-10@freebsd.org Subject: svn commit: r324602 - in stable: 10/sys/vm 11/sys/vm Message-ID: <201710131711.v9DHB9rt003581@repo.freebsd.org>
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Author: jhb Date: Fri Oct 13 17:11:08 2017 New Revision: 324602 URL: https://svnweb.freebsd.org/changeset/base/324602 Log: MFC 324072: Add UMA_ALIGNOF(). This is a wrapper around _Alignof() that sets the alignment for a zone to the alignment required by a given type. This allows the compiler to determine the proper alignment rather than having the programmer try to guess. Modified: stable/10/sys/vm/uma.h Directory Properties: stable/10/ (props changed) Changes in other areas also in this revision: Modified: stable/11/sys/vm/uma.h Directory Properties: stable/11/ (props changed) Modified: stable/10/sys/vm/uma.h ============================================================================== --- stable/10/sys/vm/uma.h Fri Oct 13 16:31:50 2017 (r324601) +++ stable/10/sys/vm/uma.h Fri Oct 13 17:11:08 2017 (r324602) @@ -296,6 +296,7 @@ uma_zone_t uma_zcache_create(char *name, int size, uma #define UMA_ALIGN_SHORT (sizeof(short) - 1) /* "" short */ #define UMA_ALIGN_CHAR (sizeof(char) - 1) /* "" char */ #define UMA_ALIGN_CACHE (0 - 1) /* Cache line size align */ +#define UMA_ALIGNOF(type) (_Alignof(type) - 1) /* Alignment fit for 'type' */ /* * Destroys an empty uma zone. If the zone is not empty uma complains loudly.
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