Date: Mon, 3 May 2010 07:08:16 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r207552 - head/sys/vm Message-ID: <201005030708.o4378GV3005691@svn.freebsd.org>
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Author: alc Date: Mon May 3 07:08:16 2010 New Revision: 207552 URL: http://svn.freebsd.org/changeset/base/207552 Log: The pages allocated by kmem_alloc_attr() and kmem_malloc() are unmanaged. Consequently, neither the page lock nor the page queues lock is needed to unwire and free them. Modified: head/sys/vm/vm_contig.c head/sys/vm/vm_kern.c Modified: head/sys/vm/vm_contig.c ============================================================================== --- head/sys/vm/vm_contig.c Mon May 3 07:00:50 2010 (r207551) +++ head/sys/vm/vm_contig.c Mon May 3 07:08:16 2010 (r207552) @@ -268,11 +268,7 @@ retry: i -= PAGE_SIZE; m = vm_page_lookup(object, OFF_TO_IDX(offset + i)); - vm_page_lock(m); - vm_page_lock_queues(); vm_page_free(m); - vm_page_unlock_queues(); - vm_page_unlock(m); } VM_OBJECT_UNLOCK(object); vm_map_delete(map, addr, addr + size); Modified: head/sys/vm/vm_kern.c ============================================================================== --- head/sys/vm/vm_kern.c Mon May 3 07:00:50 2010 (r207551) +++ head/sys/vm/vm_kern.c Mon May 3 07:08:16 2010 (r207552) @@ -380,12 +380,8 @@ retry: i -= PAGE_SIZE; m = vm_page_lookup(kmem_object, OFF_TO_IDX(offset + i)); - vm_page_lock(m); - vm_page_lock_queues(); vm_page_unwire(m, 0); vm_page_free(m); - vm_page_unlock_queues(); - vm_page_unlock(m); } VM_OBJECT_UNLOCK(kmem_object); vm_map_delete(map, addr, addr + size);
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