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[src/trunk]: src/sys/ufs/ufs simplify and correct.
details: https://anonhg.NetBSD.org/src/rev/59f1c51bea8a
branches: trunk
changeset: 803454:59f1c51bea8a
user: christos <christos%NetBSD.org@localhost>
date: Wed Oct 29 01:13:28 2014 +0000
description:
simplify and correct.
diffstat:
sys/ufs/ufs/ufs_extern.h | 4 +-
sys/ufs/ufs/ufs_inode.c | 78 +++++++++++++++++++++--------------------------
sys/ufs/ufs/ufs_vnops.c | 26 +--------------
3 files changed, 40 insertions(+), 68 deletions(-)
diffs (208 lines):
diff -r 13e1fc2204ee -r 59f1c51bea8a sys/ufs/ufs/ufs_extern.h
--- a/sys/ufs/ufs/ufs_extern.h Wed Oct 29 01:08:31 2014 +0000
+++ b/sys/ufs/ufs/ufs_extern.h Wed Oct 29 01:13:28 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ufs_extern.h,v 1.76 2014/10/21 10:39:26 slp Exp $ */
+/* $NetBSD: ufs_extern.h,v 1.77 2014/10/29 01:13:28 christos Exp $ */
/*-
* Copyright (c) 1991, 1993, 1994
@@ -111,7 +111,7 @@
/* ufs_inode.c */
int ufs_reclaim(struct vnode *);
int ufs_balloc_range(struct vnode *, off_t, off_t, kauth_cred_t, int);
-int ufs_wapbl_truncate(struct vnode *, uint64_t, uint64_t, uint64_t);
+int ufs_truncate(struct vnode *, uint64_t, kauth_cred_t);
/* ufs_lookup.c */
void ufs_dirbad(struct inode *, doff_t, const char *);
diff -r 13e1fc2204ee -r 59f1c51bea8a sys/ufs/ufs/ufs_inode.c
--- a/sys/ufs/ufs/ufs_inode.c Wed Oct 29 01:08:31 2014 +0000
+++ b/sys/ufs/ufs/ufs_inode.c Wed Oct 29 01:13:28 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ufs_inode.c,v 1.91 2014/10/21 10:39:26 slp Exp $ */
+/* $NetBSD: ufs_inode.c,v 1.92 2014/10/29 01:13:28 christos Exp $ */
/*
* Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ufs_inode.c,v 1.91 2014/10/21 10:39:26 slp Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ufs_inode.c,v 1.92 2014/10/29 01:13:28 christos Exp $");
#if defined(_KERNEL_OPT)
#include "opt_ffs.h"
@@ -87,7 +87,6 @@
struct mount *transmp;
mode_t mode;
int error = 0;
- int logged = 0;
UFS_WAPBL_JUNLOCK_ASSERT(vp->v_mount);
@@ -102,26 +101,8 @@
#ifdef UFS_EXTATTR
ufs_extattr_vnode_inactive(vp, curlwp);
#endif
- if (ip->i_size != 0) {
- uint64_t incr = MNINDIR(ip->i_ump) <<
- vp->v_mount->mnt_fs_bshift; /* Power of 2 */
- uint64_t base = UFS_NDADDR <<
- vp->v_mount->mnt_fs_bshift;
- /*
- * When journaling, only truncate one indirect block
- * at a time
- */
- if (vp->v_mount->mnt_wapbl && ip->i_size > base + incr) {
- error = ufs_wapbl_truncate(vp, incr, base, 0);
- }
- if (!error) {
- error = UFS_WAPBL_BEGIN(vp->v_mount);
- if (error)
- goto out;
- logged = 1;
- error = UFS_TRUNCATE(vp, (off_t)0, 0, NOCRED);
- }
- }
+ if (ip->i_size != 0)
+ error = ufs_truncate(vp, 0, NOCRED);
#if defined(QUOTA) || defined(QUOTA2)
(void)chkiq(ip, -1, NOCRED, 0);
#endif
@@ -137,16 +118,12 @@
}
if (ip->i_flag & (IN_CHANGE | IN_UPDATE | IN_MODIFIED)) {
- if (!logged++) {
- int err;
- err = UFS_WAPBL_BEGIN(vp->v_mount);
- if (err)
- goto out;
- }
+ error = UFS_WAPBL_BEGIN(vp->v_mount);
+ if (error)
+ goto out;
UFS_UPDATE(vp, NULL, NULL, 0);
+ UFS_WAPBL_END(vp->v_mount);
}
- if (logged)
- UFS_WAPBL_END(vp->v_mount);
out:
/*
* If we are done with the inode, reclaim it
@@ -295,25 +272,23 @@
return error;
}
-int
-ufs_wapbl_truncate(struct vnode *vp, uint64_t incr, uint64_t base,
- uint64_t newsize)
+static int
+ufs_wapbl_truncate(struct vnode *vp, uint64_t newsize, kauth_cred_t cred)
{
struct inode *ip = VTOI(vp);
- int error;
+ int error = 0;
+ uint64_t base, incr;
- error = UFS_WAPBL_BEGIN(vp->v_mount);
- if (error)
- return error;
-
- while (ip->i_size > base + incr) {
+ base = UFS_NDADDR << vp->v_mount->mnt_fs_bshift;
+ incr = MNINDIR(ip->i_ump) << vp->v_mount->mnt_fs_bshift;/* Power of 2 */
+ while (ip->i_size > base + incr &&
+ (newsize == 0 || ip->i_size > newsize + incr)) {
/*
* round down to next full indirect
* block boundary.
*/
- uint64_t nsize =
- base + ((ip->i_size - base - 1) & ~(incr - 1));
- error = UFS_TRUNCATE(vp, nsize, 0, NOCRED);
+ uint64_t nsize = base + ((ip->i_size - base - 1) & ~(incr - 1));
+ error = UFS_TRUNCATE(vp, nsize, 0, cred);
if (error)
break;
UFS_WAPBL_END(vp->v_mount);
@@ -321,6 +296,23 @@
if (error)
return error;
}
+ return error;
+}
+
+int
+ufs_truncate(struct vnode *vp, uint64_t newsize, kauth_cred_t cred)
+{
+ int error;
+
+ error = UFS_WAPBL_BEGIN(vp->v_mount);
+ if (error)
+ return error;
+
+ if (vp->v_mount->mnt_wapbl)
+ error = ufs_wapbl_truncate(vp, newsize, cred);
+
+ if (error == 0)
+ error = UFS_TRUNCATE(vp, newsize, 0, cred);
UFS_WAPBL_END(vp->v_mount);
return error;
diff -r 13e1fc2204ee -r 59f1c51bea8a sys/ufs/ufs/ufs_vnops.c
--- a/sys/ufs/ufs/ufs_vnops.c Wed Oct 29 01:08:31 2014 +0000
+++ b/sys/ufs/ufs/ufs_vnops.c Wed Oct 29 01:13:28 2014 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ufs_vnops.c,v 1.223 2014/10/21 10:39:26 slp Exp $ */
+/* $NetBSD: ufs_vnops.c,v 1.224 2014/10/29 01:13:28 christos Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -66,7 +66,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ufs_vnops.c,v 1.223 2014/10/21 10:39:26 slp Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ufs_vnops.c,v 1.224 2014/10/29 01:13:28 christos Exp $");
#if defined(_KERNEL_OPT)
#include "opt_ffs.h"
@@ -464,8 +464,6 @@
int error;
kauth_action_t action;
bool changing_sysflags;
- uint64_t incr;
- uint64_t base;
vap = ap->a_vap;
vp = ap->a_vp;
@@ -581,25 +579,7 @@
error = EPERM;
goto out;
}
- incr = MNINDIR(ip->i_ump) <<
- vp->v_mount->mnt_fs_bshift; /* Power of 2 */
- base = UFS_NDADDR <<
- vp->v_mount->mnt_fs_bshift;
- /*
- * When journaling, only truncate one indirect block
- * at a time.
- */
- if (vp->v_mount->mnt_wapbl && ip->i_size > base + incr) {
- error = ufs_wapbl_truncate(vp, incr, base,
- vap->va_size);
- }
- if (!error) {
- error = UFS_WAPBL_BEGIN(vp->v_mount);
- if (error)
- goto out;
- error = UFS_TRUNCATE(vp, vap->va_size, 0, cred);
- UFS_WAPBL_END(vp->v_mount);
- }
+ error = ufs_truncate(vp, vap->va_size, cred);
if (error)
goto out;
break;
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