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Date:      Fri, 6 Dec 2019 11:46:15 +0000 (UTC)
From:      Konstantin Belousov <kib@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: r355442 - in stable/12/sys: cddl/contrib/opensolaris/uts/common/fs/zfs kern sys
Message-ID:  <201912061146.xB6BkF5F070105@repo.freebsd.org>
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Author: kib
Date: Fri Dec  6 11:46:15 2019
New Revision: 355442
URL: https://svnweb.freebsd.org/changeset/base/355442

Log:
  MFC r355211:
  Add a VN_OPEN_INVFS flag.

Modified:
  stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
  stable/12/sys/kern/vfs_vnops.c
  stable/12/sys/sys/vnode.h
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c
==============================================================================
--- stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c	Fri Dec  6 09:50:29 2019	(r355441)
+++ stable/12/sys/cddl/contrib/opensolaris/uts/common/fs/zfs/zfs_vnops.c	Fri Dec  6 11:46:15 2019	(r355442)
@@ -5541,7 +5541,7 @@ vop_getextattr {
 	flags = FREAD;
 	NDINIT_ATVP(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, attrname,
 	    xvp, td);
-	error = vn_open_cred(&nd, &flags, 0, 0, ap->a_cred, NULL);
+	error = vn_open_cred(&nd, &flags, VN_OPEN_INVFS, 0, ap->a_cred, NULL);
 	vp = nd.ni_vp;
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (error != 0) {
@@ -5678,7 +5678,8 @@ vop_setextattr {
 	flags = FFLAGS(O_WRONLY | O_CREAT);
 	NDINIT_ATVP(&nd, LOOKUP, NOFOLLOW, UIO_SYSSPACE, attrname,
 	    xvp, td);
-	error = vn_open_cred(&nd, &flags, 0600, 0, ap->a_cred, NULL);
+	error = vn_open_cred(&nd, &flags, 0600, VN_OPEN_INVFS, ap->a_cred,
+	    NULL);
 	vp = nd.ni_vp;
 	NDFREE(&nd, NDF_ONLY_PNBUF);
 	if (error != 0) {

Modified: stable/12/sys/kern/vfs_vnops.c
==============================================================================
--- stable/12/sys/kern/vfs_vnops.c	Fri Dec  6 09:50:29 2019	(r355441)
+++ stable/12/sys/kern/vfs_vnops.c	Fri Dec  6 11:46:15 2019	(r355442)
@@ -216,7 +216,8 @@ restart:
 			ndp->ni_cnd.cn_flags |= AUDITVNODE1;
 		if (vn_open_flags & VN_OPEN_NOCAPCHECK)
 			ndp->ni_cnd.cn_flags |= NOCAPCHECK;
-		bwillwrite();
+		if ((vn_open_flags & VN_OPEN_INVFS) == 0)
+			bwillwrite();
 		if ((error = namei(ndp)) != 0)
 			return (error);
 		if (ndp->ni_vp == NULL) {

Modified: stable/12/sys/sys/vnode.h
==============================================================================
--- stable/12/sys/sys/vnode.h	Fri Dec  6 09:50:29 2019	(r355441)
+++ stable/12/sys/sys/vnode.h	Fri Dec  6 11:46:15 2019	(r355442)
@@ -577,6 +577,7 @@ typedef void vop_getpages_iodone_t(void *, vm_page_t *
 #define	VN_OPEN_NOAUDIT		0x00000001
 #define	VN_OPEN_NOCAPCHECK	0x00000002
 #define	VN_OPEN_NAMECACHE	0x00000004
+#define	VN_OPEN_INVFS		0x00000008
 
 /*
  * Public vnode manipulation functions.

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