Date: Sun, 4 Mar 2018 19:17:32 +0000 (UTC) From: Eitan Adler <eadler@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-11@freebsd.org Subject: svn commit: r330402 - stable/11/sys/fs/nullfs Message-ID: <201803041917.w24JHWFk018383@repo.freebsd.org>
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Author: eadler Date: Sun Mar 4 19:17:32 2018 New Revision: 330402 URL: https://svnweb.freebsd.org/changeset/base/330402 Log: MFC r305504: 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. Modified: stable/11/sys/fs/nullfs/null_vnops.c Directory Properties: stable/11/ (props changed) Modified: stable/11/sys/fs/nullfs/null_vnops.c ============================================================================== --- stable/11/sys/fs/nullfs/null_vnops.c Sun Mar 4 19:15:24 2018 (r330401) +++ stable/11/sys/fs/nullfs/null_vnops.c Sun Mar 4 19:17:32 2018 (r330402) @@ -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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