[src/trunk]: src/sys/ufs/lfs Fix missing <sys/evcnt.h> by removing the evcnts...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/64f6acfc715a
branches:  trunk
changeset: 1007618:64f6acfc715a
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Sun Feb 23 15:23:08 2020 +0000

description:
Fix missing <sys/evcnt.h> by removing the evcnts instead.

Just wanted to confirm that a race might happen, and indeed it did.
These serve little diagnostic value otherwise.

diffstat:

 sys/ufs/lfs/lfs_subr.c  |  12 +++---------
 sys/ufs/lfs/lfs_vnops.c |  12 +++---------
 2 files changed, 6 insertions(+), 18 deletions(-)

diffs (82 lines):

diff -r 5641958916a7 -r 64f6acfc715a sys/ufs/lfs/lfs_subr.c
--- a/sys/ufs/lfs/lfs_subr.c    Sun Feb 23 15:12:18 2020 +0000
+++ b/sys/ufs/lfs/lfs_subr.c    Sun Feb 23 15:23:08 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lfs_subr.c,v 1.101 2020/02/23 15:09:55 ad Exp $        */
+/*     $NetBSD: lfs_subr.c,v 1.102 2020/02/23 15:23:08 riastradh Exp $ */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
@@ -60,7 +60,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lfs_subr.c,v 1.101 2020/02/23 15:09:55 ad Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lfs_subr.c,v 1.102 2020/02/23 15:23:08 riastradh Exp $");
 
 #include <sys/param.h>
 #include <sys/systm.h>
@@ -337,10 +337,6 @@
 
 static void lfs_unmark_dirop(struct lfs *);
 
-static struct evcnt lfs_dchain_marker_pass_dirop =
-    EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "lfs", "dchain marker pass dirop");
-EVCNT_ATTACH_STATIC(lfs_dchain_marker_pass_dirop);
-
 static void
 lfs_unmark_dirop(struct lfs *fs)
 {
@@ -371,10 +367,8 @@
                TAILQ_REMOVE(&fs->lfs_dchainhd, marker, i_lfs_dchain);
                TAILQ_INSERT_AFTER(&fs->lfs_dchainhd, ip, marker,
                    i_lfs_dchain);
-               if (ip->i_state & IN_MARKER) {
-                       lfs_dchain_marker_pass_dirop.ev_count++;
+               if (ip->i_state & IN_MARKER)
                        continue;
-               }
                vp = ITOV(ip);
                if ((ip->i_state & (IN_ADIROP | IN_CDIROP)) == IN_CDIROP) {
                        --lfs_dirvcount;
diff -r 5641958916a7 -r 64f6acfc715a sys/ufs/lfs/lfs_vnops.c
--- a/sys/ufs/lfs/lfs_vnops.c   Sun Feb 23 15:12:18 2020 +0000
+++ b/sys/ufs/lfs/lfs_vnops.c   Sun Feb 23 15:23:08 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lfs_vnops.c,v 1.329 2020/02/23 08:40:19 riastradh Exp $        */
+/*     $NetBSD: lfs_vnops.c,v 1.330 2020/02/23 15:23:08 riastradh Exp $        */
 
 /*-
  * Copyright (c) 1999, 2000, 2001, 2002, 2003 The NetBSD Foundation, Inc.
@@ -125,7 +125,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lfs_vnops.c,v 1.329 2020/02/23 08:40:19 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lfs_vnops.c,v 1.330 2020/02/23 15:23:08 riastradh Exp $");
 
 #ifdef _KERNEL_OPT
 #include "opt_compat_netbsd.h"
@@ -1595,10 +1595,6 @@
        return VOP_STRATEGY(vp, bp);
 }
 
-static struct evcnt lfs_dchain_marker_pass_flush =
-    EVCNT_INITIALIZER(EVCNT_TYPE_MISC, NULL, "lfs", "dchain marker pass flush");
-EVCNT_ATTACH_STATIC(lfs_dchain_marker_pass_flush);
-
 /*
  * Inline lfs_segwrite/lfs_writevnodes, but just for dirops.
  * Technically this is a checkpoint (the on-disk state is valid)
@@ -1662,10 +1658,8 @@
                TAILQ_REMOVE(&fs->lfs_dchainhd, marker, i_lfs_dchain);
                TAILQ_INSERT_AFTER(&fs->lfs_dchainhd, ip, marker,
                    i_lfs_dchain);
-               if (ip->i_state & IN_MARKER) {
-                       lfs_dchain_marker_pass_flush.ev_count++;
+               if (ip->i_state & IN_MARKER)
                        continue;
-               }
                vp = ITOV(ip);
 
                /*