[src/trunk]: src/sys/fs/puffs use ubc_zerorange

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

details:   https://anonhg.NetBSD.org/src/rev/d70c86c8e103
branches:  trunk
changeset: 822758:d70c86c8e103
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Apr 06 00:02:19 2017 +0000

description:
use ubc_zerorange

diffstat:

 sys/fs/puffs/puffs_vnops.c |  32 ++++----------------------------
 1 files changed, 4 insertions(+), 28 deletions(-)

diffs (60 lines):

diff -r a19a39cdd4da -r d70c86c8e103 sys/fs/puffs/puffs_vnops.c
--- a/sys/fs/puffs/puffs_vnops.c        Wed Apr 05 21:26:30 2017 +0000
+++ b/sys/fs/puffs/puffs_vnops.c        Thu Apr 06 00:02:19 2017 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: puffs_vnops.c,v 1.206 2017/04/04 21:07:50 christos Exp $       */
+/*     $NetBSD: puffs_vnops.c,v 1.207 2017/04/06 00:02:19 christos Exp $       */
 
 /*
  * Copyright (c) 2005, 2006, 2007  Antti Kantee.  All Rights Reserved.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: puffs_vnops.c,v 1.206 2017/04/04 21:07:50 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: puffs_vnops.c,v 1.207 2017/04/06 00:02:19 christos Exp $");
 
 #include <sys/param.h>
 #include <sys/buf.h>
@@ -1147,11 +1147,6 @@
 static void
 zerofill_lastpage(struct vnode *vp, voff_t off)
 {
-       char zbuf[MAX_PAGE_SIZE];
-       struct iovec iov;
-       struct uio uio;
-       vsize_t len;
-       int error;
 
        if (trunc_page(off) == off)
                return;
@@ -1159,27 +1154,8 @@
        if (vp->v_writecount == 0)
                return;
 
-       len = round_page(off) - off;
-       KASSERT(len < sizeof(zbuf));
-       memset(zbuf, 0, len);
-
-       iov.iov_base = zbuf;
-       iov.iov_len = len;
-       UIO_SETUP_SYSSPACE(&uio);
-       uio.uio_iov = &iov;
-       uio.uio_iovcnt = 1;
-       uio.uio_offset = off;
-       uio.uio_resid = len;
-       uio.uio_rw = UIO_WRITE;
-
-       error = ubc_uiomove(&vp->v_uobj, &uio, len,
-                           UVM_ADV_SEQUENTIAL, UBC_WRITE|UBC_UNMAP_FLAG(vp));
-       if (error) {
-               DPRINTF(("zero-fill 0x%" PRIxVSIZE "@0x%" PRIx64 
-                        " failed: error = %d\n", len, off, error));
-       }
-
-       return;
+       vsize_t len = round_page(off) - off;
+       ubc_zerorange(&vp->v_uobj, off, len, UBC_WRITE|UBC_UNMAP_FLAG(vp));
 }
 
 static int