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authormartin <martin@NetBSD.org>2020-04-22 18:07:37 +0000
committermartin <martin@NetBSD.org>2020-04-22 18:07:37 +0000
commitc88dcc6653087746748e1c142bfe8d2be855804e (patch)
tree9005144cb05fa3203d4bfce0bb51007c486c9763
parent003acb9a207ddbfd8b18fd6be326c893fe183108 (diff)
Pull up following revision(s) (requested by gdt in ticket #840):
sys/kern/vfs_syscalls.c: revision 1.544 lib/libc/sys/fdatasync.2: revision 1.17 Relax fdatasync restriction that fd be writable The restriction that a fd passed to fdatasync(2) must be writable was added in 2003 in order to comply with POSIX. Since then, POSIX has removed that requirement, and POSIX-valid programs have been therefore encountering errors on NetBSD. Patch by Paul Ripke after discussion on netbsd-users. Issue discovered with pkgsrc/databases/mongodb3 as used by pkgsrc/net/unifi.
-rw-r--r--lib/libc/sys/fdatasync.26
-rw-r--r--sys/kern/vfs_syscalls.c11
2 files changed, 6 insertions, 11 deletions
diff --git a/lib/libc/sys/fdatasync.2 b/lib/libc/sys/fdatasync.2
index 3f12119f0db..9eff4be388f 100644
--- a/lib/libc/sys/fdatasync.2
+++ b/lib/libc/sys/fdatasync.2
@@ -1,4 +1,4 @@
-.\" $NetBSD: fdatasync.2,v 1.16 2008/04/30 13:10:51 martin Exp $
+.\" $NetBSD: fdatasync.2,v 1.16.66.1 2020/04/22 18:07:37 martin Exp $
.\"
.\" Copyright (c) 1998 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -68,7 +68,7 @@ function will fail if:
.It Bq Er EBADF
The
.Fa fd
-argument is not a valid file descriptor open for writing.
+argument is not a valid file descriptor.
.It Bq Er EINVAL
This implementation does not support synchronized I/O for this file.
.It Bq Er ENOSYS
@@ -93,4 +93,4 @@ and outstanding I/O operations are not guaranteed to have been completed.
The
.Fn fdatasync
function conforms to
-.St -p1003.1b-93 .
+.St -p1003.1-2008 .
diff --git a/sys/kern/vfs_syscalls.c b/sys/kern/vfs_syscalls.c
index d6132fda629..a6ee2e2e138 100644
--- a/sys/kern/vfs_syscalls.c
+++ b/sys/kern/vfs_syscalls.c
@@ -1,4 +1,4 @@
-/* $NetBSD: vfs_syscalls.c,v 1.533 2019/07/06 14:37:24 maxv Exp $ */
+/* $NetBSD: vfs_syscalls.c,v 1.533.2.1 2020/04/22 18:07:37 martin Exp $ */
/*-
* Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@@ -70,7 +70,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.533 2019/07/06 14:37:24 maxv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls.c,v 1.533.2.1 2020/04/22 18:07:37 martin Exp $");
#ifdef _KERNEL_OPT
#include "opt_fileassoc.h"
@@ -4044,8 +4044,7 @@ sys_fsync(struct lwp *l, const struct sys_fsync_args *uap, register_t *retval)
* Sync a range of file data. API modeled after that found in AIX.
*
* FDATASYNC indicates that we need only save enough metadata to be able
- * to re-read the written data. Note we duplicate AIX's requirement that
- * the file be open for writing.
+ * to re-read the written data.
*/
/* ARGSUSED */
int
@@ -4126,10 +4125,6 @@ sys_fdatasync(struct lwp *l, const struct sys_fdatasync_args *uap, register_t *r
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
- if ((fp->f_flag & FWRITE) == 0) {
- fd_putfile(SCARG(uap, fd));
- return (EBADF);
- }
vp = fp->f_vnode;
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
error = VOP_FSYNC(vp, fp->f_cred, FSYNC_WAIT|FSYNC_DATAONLY, 0, 0);