Author: mjg Date: Thu Sep 20 18:25:26 2018 New Revision: 338835 URL: https://svnweb.freebsd.org/changeset/base/338835
Log: vfs: remove lookup_shared tunable Reviewed by: kib, jhb Approved by: re (gjb) Differential Revision: https://reviews.freebsd.org/D17253 Modified: head/sys/kern/vfs_lookup.c Modified: head/sys/kern/vfs_lookup.c ============================================================================== --- head/sys/kern/vfs_lookup.c Thu Sep 20 18:24:32 2018 (r338834) +++ head/sys/kern/vfs_lookup.c Thu Sep 20 18:25:26 2018 (r338835) @@ -160,10 +160,6 @@ nameiinit(void *dummy __unused) } SYSINIT(vfs, SI_SUB_VFS, SI_ORDER_SECOND, nameiinit, NULL); -static int lookup_shared = 1; -SYSCTL_INT(_vfs, OID_AUTO, lookup_shared, CTLFLAG_RWTUN, &lookup_shared, 0, - "enables shared locks for path name translation"); - static int lookup_cap_dotdot = 1; SYSCTL_INT(_vfs, OID_AUTO, lookup_cap_dotdot, CTLFLAG_RWTUN, &lookup_cap_dotdot, 0, @@ -307,8 +303,6 @@ namei(struct nameidata *ndp) ("namei: flags contaminated with nameiops")); MPASS(ndp->ni_startdir == NULL || ndp->ni_startdir->v_type == VDIR || ndp->ni_startdir->v_type == VBAD); - if (!lookup_shared) - cnp->cn_flags &= ~LOCKSHARED; fdp = p->p_fd; TAILQ_INIT(&ndp->ni_cap_tracker); ndp->ni_lcf = 0; @@ -660,10 +654,7 @@ lookup(struct nameidata *ndp) * We use shared locks until we hit the parent of the last cn then * we adjust based on the requesting flags. */ - if (lookup_shared) - cnp->cn_lkflags = LK_SHARED; - else - cnp->cn_lkflags = LK_EXCLUSIVE; + cnp->cn_lkflags = LK_SHARED; dp = ndp->ni_startdir; ndp->ni_startdir = NULLVP; vn_lock(dp, @@ -1087,7 +1078,7 @@ nextname: VOP_UNLOCK(dp, 0); success: /* - * Because of lookup_shared we may have the vnode shared locked, but + * Because of shared lookup we may have the vnode shared locked, but * the caller may want it to be exclusively locked. */ if (needs_exclusive_leaf(dp->v_mount, cnp->cn_flags) && _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "[email protected]"
