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[src/trunk]: src/sys/ufs/lfs Bring in a copy of ffs_quota2_mount() for refere...
details: https://anonhg.NetBSD.org/src/rev/278ca8d17a43
branches: trunk
changeset: 788899:278ca8d17a43
user: dholland <dholland%NetBSD.org@localhost>
date: Sun Jul 28 01:22:55 2013 +0000
description:
Bring in a copy of ffs_quota2_mount() for reference.
Add stuff to struct lfs that it needs to initialize.
Clear these fields in mount as there's no on-disk support for quota2;
but this increases the chances of being able to add it (or something
like it) in the future.
diffstat:
sys/ufs/lfs/lfs.h | 8 ++++-
sys/ufs/lfs/lfs_vfsops.c | 12 ++++++-
sys/ufs/lfs/ulfs_extern.h | 3 +-
sys/ufs/lfs/ulfs_quota2.c | 77 +++++++++++++++++++++++++++++++++++++++++++++-
4 files changed, 94 insertions(+), 6 deletions(-)
diffs (168 lines):
diff -r 445d24570c52 -r 278ca8d17a43 sys/ufs/lfs/lfs.h
--- a/sys/ufs/lfs/lfs.h Sun Jul 28 01:10:49 2013 +0000
+++ b/sys/ufs/lfs/lfs.h Sun Jul 28 01:22:55 2013 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: lfs.h,v 1.159 2013/07/28 01:10:49 dholland Exp $ */
+/* $NetBSD: lfs.h,v 1.160 2013/07/28 01:22:55 dholland Exp $ */
/* from NetBSD: dinode.h,v 1.22 2013/01/22 09:39:18 dholland Exp */
/* from NetBSD: dir.h,v 1.21 2009/07/22 04:49:19 dholland Exp */
@@ -1006,6 +1006,12 @@
int um_maxsymlinklen;
int um_dirblksiz;
u_int64_t um_maxfilesize;
+
+ /* Stuff used by quota2 code, not currently operable */
+ unsigned lfs_use_quota2 : 1;
+ uint32_t lfs_quota_magic;
+ uint8_t lfs_quota_flags;
+ uint64_t lfs_quotaino[2];
#endif
};
diff -r 445d24570c52 -r 278ca8d17a43 sys/ufs/lfs/lfs_vfsops.c
--- a/sys/ufs/lfs/lfs_vfsops.c Sun Jul 28 01:10:49 2013 +0000
+++ b/sys/ufs/lfs/lfs_vfsops.c Sun Jul 28 01:22:55 2013 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: lfs_vfsops.c,v 1.310 2013/07/28 01:10:49 dholland Exp $ */
+/* $NetBSD: lfs_vfsops.c,v 1.311 2013/07/28 01:22:55 dholland Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001, 2002, 2003, 2007, 2007
@@ -61,7 +61,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: lfs_vfsops.c,v 1.310 2013/07/28 01:10:49 dholland Exp $");
+__KERNEL_RCSID(0, "$NetBSD: lfs_vfsops.c,v 1.311 2013/07/28 01:22:55 dholland Exp $");
#if defined(_KERNEL_OPT)
#include "opt_lfs.h"
@@ -1003,6 +1003,14 @@
fs->um_dirblksiz = LFS_DIRBLKSIZ;
fs->um_maxfilesize = fs->lfs_maxfilesize;
+ /* quota stuff */
+ /* XXX: these need to come from the on-disk superblock to be used */
+ fs->lfs_use_quota2 = 0;
+ fs->lfs_quota_magic = 0;
+ fs->lfs_quota_flags = 0;
+ fs->lfs_quotaino[0] = 0;
+ fs->lfs_quotaino[1] = 0;
+
/* Initialize the mount structure. */
dev = devvp->v_rdev;
mp->mnt_data = ump;
diff -r 445d24570c52 -r 278ca8d17a43 sys/ufs/lfs/ulfs_extern.h
--- a/sys/ufs/lfs/ulfs_extern.h Sun Jul 28 01:10:49 2013 +0000
+++ b/sys/ufs/lfs/ulfs_extern.h Sun Jul 28 01:22:55 2013 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: ulfs_extern.h,v 1.9 2013/07/28 01:10:49 dholland Exp $ */
+/* $NetBSD: ulfs_extern.h,v 1.10 2013/07/28 01:22:55 dholland Exp $ */
/* from NetBSD: ufs_extern.h,v 1.72 2012/05/09 00:21:18 riastradh Exp */
/*-
@@ -158,6 +158,7 @@
/* ulfs_quota2.c */
int lfsquota2_umount(struct mount *, int);
+int lfs_quota2_mount(struct mount *);
/* ulfs_vfsops.c */
void ulfs_init(void);
diff -r 445d24570c52 -r 278ca8d17a43 sys/ufs/lfs/ulfs_quota2.c
--- a/sys/ufs/lfs/ulfs_quota2.c Sun Jul 28 01:10:49 2013 +0000
+++ b/sys/ufs/lfs/ulfs_quota2.c Sun Jul 28 01:22:55 2013 +0000
@@ -1,5 +1,6 @@
-/* $NetBSD: ulfs_quota2.c,v 1.9 2013/07/28 01:10:49 dholland Exp $ */
+/* $NetBSD: ulfs_quota2.c,v 1.10 2013/07/28 01:22:55 dholland Exp $ */
/* from NetBSD: ufs_quota2.c,v 1.35 2012/09/27 07:47:56 bouyer Exp */
+/* from NetBSD: ffs_quota2.c,v 1.4 2011/06/12 03:36:00 rmind Exp */
/*-
* Copyright (c) 2010 Manuel Bouyer
@@ -28,7 +29,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: ulfs_quota2.c,v 1.9 2013/07/28 01:10:49 dholland Exp $");
+__KERNEL_RCSID(0, "$NetBSD: ulfs_quota2.c,v 1.10 2013/07/28 01:22:55 dholland Exp $");
#include <sys/buf.h>
#include <sys/param.h>
@@ -1560,3 +1561,75 @@
{
return 0;
}
+
+int
+lfs_quota2_mount(struct mount *mp)
+{
+ struct ulfsmount *ump = VFSTOULFS(mp);
+ struct lfs *fs = ump->um_lfs;
+ int error = 0;
+ struct vnode *vp;
+ struct lwp *l = curlwp;
+
+ if ((fs->lfs_use_quota2) == 0)
+ return 0;
+
+ fs->um_flags |= ULFS_QUOTA2;
+ ump->umq2_bsize = fs->lfs_bsize;
+ ump->umq2_bmask = fs->lfs_bmask;
+ if (fs->lfs_quota_magic != Q2_HEAD_MAGIC) {
+ printf("%s: Invalid quota magic number\n",
+ mp->mnt_stat.f_mntonname);
+ return EINVAL;
+ }
+ if ((fs->lfs_quota_flags & FS_Q2_DO_TYPE(ULFS_USRQUOTA)) &&
+ fs->lfs_quotaino[ULFS_USRQUOTA] == 0) {
+ printf("%s: no user quota inode\n",
+ mp->mnt_stat.f_mntonname);
+ error = EINVAL;
+ }
+ if ((fs->lfs_quota_flags & FS_Q2_DO_TYPE(ULFS_GRPQUOTA)) &&
+ fs->lfs_quotaino[ULFS_GRPQUOTA] == 0) {
+ printf("%s: no group quota inode\n",
+ mp->mnt_stat.f_mntonname);
+ error = EINVAL;
+ }
+ if (error)
+ return error;
+
+ if (fs->lfs_quota_flags & FS_Q2_DO_TYPE(ULFS_USRQUOTA) &&
+ ump->um_quotas[ULFS_USRQUOTA] == NULLVP) {
+ error = VFS_VGET(mp, fs->lfs_quotaino[ULFS_USRQUOTA], &vp);
+ if (error) {
+ printf("%s: can't vget() user quota inode: %d\n",
+ mp->mnt_stat.f_mntonname, error);
+ return error;
+ }
+ ump->um_quotas[ULFS_USRQUOTA] = vp;
+ ump->um_cred[ULFS_USRQUOTA] = l->l_cred;
+ mutex_enter(vp->v_interlock);
+ vp->v_writecount++;
+ mutex_exit(vp->v_interlock);
+ VOP_UNLOCK(vp);
+ }
+ if (fs->lfs_quota_flags & FS_Q2_DO_TYPE(ULFS_GRPQUOTA) &&
+ ump->um_quotas[ULFS_GRPQUOTA] == NULLVP) {
+ error = VFS_VGET(mp, fs->lfs_quotaino[ULFS_GRPQUOTA], &vp);
+ if (error) {
+ vn_close(ump->um_quotas[ULFS_USRQUOTA],
+ FREAD|FWRITE, l->l_cred);
+ printf("%s: can't vget() group quota inode: %d\n",
+ mp->mnt_stat.f_mntonname, error);
+ return error;
+ }
+ ump->um_quotas[ULFS_GRPQUOTA] = vp;
+ ump->um_cred[ULFS_GRPQUOTA] = l->l_cred;
+ mutex_enter(vp->v_interlock);
+ vp->v_vflag |= VV_SYSTEM;
+ vp->v_writecount++;
+ mutex_exit(vp->v_interlock);
+ VOP_UNLOCK(vp);
+ }
+ mp->mnt_flag |= MNT_QUOTA;
+ return 0;
+}
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