Date: Thu, 4 Jul 2013 19:01:18 +0000 (UTC) From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r252714 - head/sys/fs/nullfs Message-ID: <201307041901.r64J1IYt007873@svn.freebsd.org>
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Author: kib Date: Thu Jul 4 19:01:18 2013 New Revision: 252714 URL: http://svnweb.freebsd.org/changeset/base/252714 Log: The tvp vnode on rename is usually unlinked. Drop the cached null vnode for tvp to allow the free of the lower vnode, if needed. PR: kern/180236 Tested by: smh Sponsored by: The FreeBSD Foundation MFC after: 1 week Modified: head/sys/fs/nullfs/null_vnops.c Modified: head/sys/fs/nullfs/null_vnops.c ============================================================================== --- head/sys/fs/nullfs/null_vnops.c Thu Jul 4 18:59:58 2013 (r252713) +++ head/sys/fs/nullfs/null_vnops.c Thu Jul 4 19:01:18 2013 (r252714) @@ -554,6 +554,7 @@ null_rename(struct vop_rename_args *ap) struct vnode *fvp = ap->a_fvp; struct vnode *fdvp = ap->a_fdvp; struct vnode *tvp = ap->a_tvp; + struct null_node *tnn; /* Check for cross-device rename. */ if ((fvp->v_mount != tdvp->v_mount) || @@ -568,7 +569,11 @@ null_rename(struct vop_rename_args *ap) vrele(fvp); return (EXDEV); } - + + if (tvp != NULL) { + tnn = VTONULL(tvp); + tnn->null_flags |= NULLV_DROP; + } return (null_bypass((struct vop_generic_args *)ap)); }
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