Date: Mon, 30 Dec 2013 09:04:06 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-9@freebsd.org Subject: svn commit: r260082 - stable/9/sys/vm Message-ID: <201312300904.rBU9469I036884@svn.freebsd.org>
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Author: kib Date: Mon Dec 30 09:04:06 2013 New Revision: 260082 URL: http://svnweb.freebsd.org/changeset/base/260082 Log: MFC r259951: Do not coalesce stack entry. Pass MAP_STACK_GROWS_DOWN and MAP_STACK_GROWS_UP flags to vm_map_insert() from vm_map_stack() Modified: stable/9/sys/vm/vm_map.c Directory Properties: stable/9/sys/ (props changed) Modified: stable/9/sys/vm/vm_map.c ============================================================================== --- stable/9/sys/vm/vm_map.c Mon Dec 30 08:57:54 2013 (r260081) +++ stable/9/sys/vm/vm_map.c Mon Dec 30 09:04:06 2013 (r260082) @@ -1230,6 +1230,7 @@ charged: } else if ((prev_entry != &map->header) && (prev_entry->eflags == protoeflags) && + (cow & (MAP_ENTRY_GROWS_DOWN | MAP_ENTRY_GROWS_UP)) == 0 && (prev_entry->end == start) && (prev_entry->wired_count == 0) && (prev_entry->cred == cred || @@ -3341,7 +3342,6 @@ vm_map_stack(vm_map_t map, vm_offset_t a * NOTE: We explicitly allow bi-directional stacks. */ orient = cow & (MAP_STACK_GROWS_DOWN|MAP_STACK_GROWS_UP); - cow &= ~orient; KASSERT(orient != 0, ("No stack grow direction")); if (addrbos < vm_map_min(map) ||
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