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Date:      Thu, 23 Jan 2020 06:02:53 +0000 (UTC)
From:      Kirk McKusick <mckusick@FreeBSD.org>
To:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org
Subject:   svn commit: r357029 - stable/12/sys/ufs/ffs
Message-ID:  <202001230602.00N62rfL002530@repo.freebsd.org>
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Author: mckusick
Date: Thu Jan 23 06:02:52 2020
New Revision: 357029
URL: https://svnweb.freebsd.org/changeset/base/357029

Log:
  MFC of 356739
  
  Optimize quota sync'ing

Modified:
  stable/12/sys/ufs/ffs/ffs_vfsops.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/ufs/ffs/ffs_vfsops.c
==============================================================================
--- stable/12/sys/ufs/ffs/ffs_vfsops.c	Thu Jan 23 05:23:37 2020	(r357028)
+++ stable/12/sys/ufs/ffs/ffs_vfsops.c	Thu Jan 23 06:02:52 2020	(r357029)
@@ -1457,8 +1457,12 @@ ffs_sync_lazy(mp)
 
 	allerror = 0;
 	td = curthread;
-	if ((mp->mnt_flag & MNT_NOATIME) != 0)
-		goto qupdate;
+	if ((mp->mnt_flag & MNT_NOATIME) != 0) {
+#ifdef QUOTA
+		qsync(mp);
+#endif
+		goto sbupdate;
+	}
 	MNT_VNODE_FOREACH_ACTIVE(vp, mp, mvp) {
 		if (vp->v_type == VNON) {
 			VI_UNLOCK(vp);
@@ -1480,18 +1484,16 @@ ffs_sync_lazy(mp)
 		if ((error = vget(vp, LK_EXCLUSIVE | LK_NOWAIT | LK_INTERLOCK,
 		    td)) != 0)
 			continue;
+#ifdef QUOTA
+		qsyncvp(vp);
+#endif
 		if (sync_doupdate(ip))
 			error = ffs_update(vp, 0);
 		if (error != 0)
 			allerror = error;
 		vput(vp);
 	}
-
-qupdate:
-#ifdef QUOTA
-	qsync(mp);
-#endif
-
+sbupdate:
 	if (VFSTOUFS(mp)->um_fs->fs_fmod != 0 &&
 	    (error = ffs_sbupdate(VFSTOUFS(mp), MNT_LAZY, 0)) != 0)
 		allerror = error;
@@ -1584,6 +1586,9 @@ loop:
 			}
 			continue;
 		}
+#ifdef QUOTA
+		qsyncvp(vp);
+#endif
 		if ((error = ffs_syncvnode(vp, waitfor, 0)) != 0)
 			allerror = error;
 		vput(vp);
@@ -1598,9 +1603,6 @@ loop:
 		if (allerror == 0 && count)
 			goto loop;
 	}
-#ifdef QUOTA
-	qsync(mp);
-#endif
 
 	devvp = ump->um_devvp;
 	bo = &devvp->v_bufobj;

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