Date: Mon, 1 May 2017 02:08:44 +0000 (UTC) From: Mark Johnston <markj@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r317630 - user/markj/PQ_LAUNDRY_11/sys/vm Message-ID: <201705010208.v4128i3T091849@repo.freebsd.org>
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Author: markj Date: Mon May 1 02:08:44 2017 New Revision: 317630 URL: https://svnweb.freebsd.org/changeset/base/317630 Log: Restore VM_ALLOC_IF{,NOT}CACHED. VM_ALLOC_IFCACHED requests always fail, and VM_ALLOC_IFNOTCACHED has no effect. Modified: user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.c user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.h Modified: user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.c ============================================================================== --- user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.c Mon May 1 02:01:12 2017 (r317629) +++ user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.c Mon May 1 02:08:44 2017 (r317630) @@ -1521,6 +1521,9 @@ vm_page_alloc(vm_object_t object, vm_pin if (object != NULL) VM_OBJECT_ASSERT_WLOCKED(object); + if (__predict_false((req & VM_ALLOC_IFCACHED) != 0)) + return (NULL); + req_class = req & VM_ALLOC_CLASS_MASK; /* Modified: user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.h ============================================================================== --- user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.h Mon May 1 02:01:12 2017 (r317629) +++ user/markj/PQ_LAUNDRY_11/sys/vm/vm_page.h Mon May 1 02:08:44 2017 (r317630) @@ -405,6 +405,8 @@ vm_page_t PHYS_TO_VM_PAGE(vm_paddr_t pa) #define VM_ALLOC_ZERO 0x0040 /* (acfg) Try to obtain a zeroed page */ #define VM_ALLOC_NOOBJ 0x0100 /* (acg) No associated object */ #define VM_ALLOC_NOBUSY 0x0200 /* (acg) Do not busy the page */ +#define VM_ALLOC_IFCACHED 0x0400 +#define VM_ALLOC_IFNOTCACHED 0x0800 #define VM_ALLOC_IGN_SBUSY 0x1000 /* (g) Ignore shared busy flag */ #define VM_ALLOC_NODUMP 0x2000 /* (ag) don't include in dump */ #define VM_ALLOC_SBUSY 0x4000 /* (acg) Shared busy the page */
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