[src/uebayasi-xip]: src/sys/ufs/ffs XIP hook for ffs.

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

details:   https://anonhg.NetBSD.org/src/rev/fb46220d7092
branches:  uebayasi-xip
changeset: 751566:fb46220d7092
user:      uebayasi <uebayasi%NetBSD.org@localhost>
date:      Thu Feb 11 05:22:38 2010 +0000

description:
XIP hook for ffs.

diffstat:

 sys/ufs/ffs/ffs_vfsops.c |  20 ++++++++++++++++++--
 1 files changed, 18 insertions(+), 2 deletions(-)

diffs (53 lines):

diff -r ff91712c3375 -r fb46220d7092 sys/ufs/ffs/ffs_vfsops.c
--- a/sys/ufs/ffs/ffs_vfsops.c  Thu Feb 11 05:20:28 2010 +0000
+++ b/sys/ufs/ffs/ffs_vfsops.c  Thu Feb 11 05:22:38 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: ffs_vfsops.c,v 1.257 2010/02/05 20:03:36 mlelstv Exp $ */
+/*     $NetBSD: ffs_vfsops.c,v 1.257.2.1 2010/02/11 05:22:38 uebayasi Exp $    */
 
 /*-
  * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc.
@@ -61,12 +61,13 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ffs_vfsops.c,v 1.257 2010/02/05 20:03:36 mlelstv Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ffs_vfsops.c,v 1.257.2.1 2010/02/11 05:22:38 uebayasi Exp $");
 
 #if defined(_KERNEL_OPT)
 #include "opt_ffs.h"
 #include "opt_quota.h"
 #include "opt_wapbl.h"
+#include "opt_xip.h"
 #endif
 
 #include <sys/param.h>
@@ -1173,6 +1174,15 @@
        mp->mnt_dev_bshift = DEV_BSHIFT;        /* XXX */
        mp->mnt_flag |= MNT_LOCAL;
        mp->mnt_iflag |= IMNT_MPSAFE;
+#ifdef XIP
+       paddr_t phys_addr = 0;
+       if ((VOP_IOCTL(devvp, DIOCGPHYSADDR, &phys_addr, FREAD,
+           cred) == 0) &&
+           phys_addr != 0) {
+               mp->mnt_iflag |= IMNT_XIP;
+               mp->mnt_phys_addr = phys_addr;
+       }
+#endif
 #ifdef FFS_EI
        if (needswap)
                ump->um_flags |= UFS_NEEDSWAP;
@@ -1748,6 +1758,12 @@
 
        vp->v_vflag |= VV_LOCKSWORK;
 
+#ifdef XIP
+       if ((vp->v_mount->mnt_iflag & IMNT_XIP) != 0) {
+               vp->v_vflag |= VV_XIP;
+       }
+#endif
+
        /*
         * XXX MFS ends up here, too, to allocate an inode.  Should we
         * XXX create another pool for MFS inodes?