Date: Tue, 6 Sep 2016 21:22:03 +0000 (UTC) From: Mateusz Guzik <mjg@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r305504 - head/sys/fs/nullfs Message-ID: <201609062122.u86LM3hf032522@repo.freebsd.org>
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Author: mjg Date: Tue Sep 6 21:22:03 2016 New Revision: 305504 URL: https://svnweb.freebsd.org/changeset/base/305504 Log: nullfs: stop special-casing directories in null_vptocnp The previous code was forcing an expensive walk in vop_stdvptocnp, which was causing performance issues on highly contended zfs. No objections: kib MFC after: 2 weeks Modified: head/sys/fs/nullfs/null_vnops.c Modified: head/sys/fs/nullfs/null_vnops.c ============================================================================== --- head/sys/fs/nullfs/null_vnops.c Tue Sep 6 21:18:14 2016 (r305503) +++ head/sys/fs/nullfs/null_vnops.c Tue Sep 6 21:22:03 2016 (r305504) @@ -870,9 +870,6 @@ null_vptocnp(struct vop_vptocnp_args *ap struct ucred *cred = ap->a_cred; int error, locked; - if (vp->v_type == VDIR) - return (vop_stdvptocnp(ap)); - locked = VOP_ISLOCKED(vp); lvp = NULLVPTOLOWERVP(vp); vhold(lvp);
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