Date: Fri, 20 Feb 2009 15:26:35 +0000 (UTC) From: Alan Cox <alc@FreeBSD.org> To: src-committers@freebsd.org, svn-src-user@freebsd.org Subject: svn commit: r188856 - user/alc/pagelock/sys/amd64/amd64 Message-ID: <200902201526.n1KFQZhT032567@svn.freebsd.org>
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Author: alc Date: Fri Feb 20 15:26:34 2009 New Revision: 188856 URL: http://svn.freebsd.org/changeset/base/188856 Log: Optimize the object locking in pmap_remove_pages(). Modified: user/alc/pagelock/sys/amd64/amd64/pmap.c Modified: user/alc/pagelock/sys/amd64/amd64/pmap.c ============================================================================== --- user/alc/pagelock/sys/amd64/amd64/pmap.c Fri Feb 20 15:19:07 2009 (r188855) +++ user/alc/pagelock/sys/amd64/amd64/pmap.c Fri Feb 20 15:26:34 2009 (r188856) @@ -3936,10 +3936,6 @@ restart: } } } - if (locked_object != NULL) { - VM_OBJECT_UNLOCK(locked_object); - locked_object = NULL; - } if (allfree) { PV_STAT(pv_entry_spare -= _NPCPV); PV_STAT(pc_chunk_count--); @@ -3952,6 +3948,8 @@ restart: vm_page_free(m); } } + if (locked_object != NULL) + VM_OBJECT_UNLOCK(locked_object); pmap_invalidate_all(pmap); vm_page_unlock_queues(); PMAP_UNLOCK(pmap);
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