Date: Mon, 8 Sep 2014 04:51:22 GMT From: John Baldwin <jhb@FreeBSD.org> To: Perforce Change Reviews <perforce@FreeBSD.org> Subject: PERFORCE change 1199532 for review Message-ID: <201409080451.s884pMbt027269@skunkworks.freebsd.org>
next in thread | raw e-mail | index | archive | help
http://p4web.freebsd.org/@@1199532?ac=10 Change 1199532 by jhb@jhb_ralph on 2014/08/29 17:49:33 Don't require MAP_SHARED or MAP_PRIVATE with MAP_ANON. Note that we can't simply for MAP_SHARED on for MAP_ANON as MAP_SHARED with MAP_ANON determines whether or not anon regions are shared with future children. Affected files ... .. //depot/projects/smpng/sys/vm/vm_mmap.c#106 edit Differences ... ==== //depot/projects/smpng/sys/vm/vm_mmap.c#106 (text+ko) ==== @@ -248,13 +248,10 @@ return (EINVAL); if ((prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC | PROT_NONE)) != 0) return (EINVAL); - - /* Exactly one of MAP_SHARED or MAP_PRIVATE must be given. */ - if ((flags & (MAP_SHARED | MAP_PRIVATE)) == 0 || + if ((flags & (MAP_ANON | MAP_SHARED | MAP_PRIVATE)) == 0 || (flags & (MAP_SHARED | MAP_PRIVATE)) == (MAP_SHARED | MAP_PRIVATE)) return (EINVAL); - /* * Align the file position to a page boundary, * and save its page offset component.
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?201409080451.s884pMbt027269>