Date: Wed, 21 Jan 2009 14:43:35 +0000 (UTC) From: John Baldwin <jhb@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r187527 - head/sys/vm Message-ID: <200901211443.n0LEhZAI080376@svn.freebsd.org>
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Author: jhb Date: Wed Jan 21 14:43:35 2009 New Revision: 187527 URL: http://svn.freebsd.org/changeset/base/187527 Log: Now that vfs_markatime() no longer requires an exclusive lock due to the VOP_MARKATIME() changes, use a shared vnode lock for mmap(). Submitted by: ups Modified: head/sys/vm/vm_mmap.c Modified: head/sys/vm/vm_mmap.c ============================================================================== --- head/sys/vm/vm_mmap.c Wed Jan 21 14:42:00 2009 (r187526) +++ head/sys/vm/vm_mmap.c Wed Jan 21 14:43:35 2009 (r187527) @@ -1160,7 +1160,7 @@ vm_mmap_vnode(struct thread *td, vm_size mp = vp->v_mount; cred = td->td_ucred; vfslocked = VFS_LOCK_GIANT(mp); - if ((error = vget(vp, LK_EXCLUSIVE, td)) != 0) { + if ((error = vget(vp, LK_SHARED, td)) != 0) { VFS_UNLOCK_GIANT(vfslocked); return (error); } @@ -1177,7 +1177,7 @@ vm_mmap_vnode(struct thread *td, vm_size if (obj->handle != vp) { vput(vp); vp = (struct vnode*)obj->handle; - vget(vp, LK_EXCLUSIVE, td); + vget(vp, LK_SHARED, td); } type = OBJT_VNODE; handle = vp;
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