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[XFS] Need to be able to reset sb_qflags if not mounting with quotas

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having previously mounted with quotas.

SGI-PV: 940491
SGI-Modid: xfs-linux:xfs-kern:23388a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
This commit is contained in:
Tim Shimmin
2005-09-05 08:24:10 +10:00
committed by Nathan Scott
parent 56d433e430
commit 4cd4a034a3
6 changed files with 95 additions and 76 deletions
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78
fs/xfs/xfs_qmops.c
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@@ -1,5 +1,5 @@
/*
* Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
* Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
@@ -42,7 +42,8 @@
#include "xfs_dir2.h"
#include "xfs_dmapi.h"
#include "xfs_mount.h"
#include "xfs_quota.h"
#include "xfs_error.h"
STATIC struct xfs_dquot *
xfs_dqvopchown_default(
@@ -54,8 +55,79 @@ xfs_dqvopchown_default(
return NULL;
}
/*
* Clear the quotaflags in memory and in the superblock.
*/
int
xfs_mount_reset_sbqflags(xfs_mount_t *mp)
{
int error;
xfs_trans_t *tp;
unsigned long s;
mp->m_qflags = 0;
/*
* It is OK to look at sb_qflags here in mount path,
* without SB_LOCK.
*/
if (mp->m_sb.sb_qflags == 0)
return 0;
s = XFS_SB_LOCK(mp);
mp->m_sb.sb_qflags = 0;
XFS_SB_UNLOCK(mp, s);
/*
* if the fs is readonly, let the incore superblock run
* with quotas off but don't flush the update out to disk
*/
if (XFS_MTOVFS(mp)->vfs_flag & VFS_RDONLY)
return 0;
#ifdef QUOTADEBUG
xfs_fs_cmn_err(CE_NOTE, mp, "Writing superblock quota changes");
#endif
tp = xfs_trans_alloc(mp, XFS_TRANS_QM_SBCHANGE);
if ((error = xfs_trans_reserve(tp, 0, mp->m_sb.sb_sectsize + 128, 0, 0,
XFS_DEFAULT_LOG_COUNT))) {
xfs_trans_cancel(tp, 0);
xfs_fs_cmn_err(CE_ALERT, mp,
"xfs_mount_reset_sbqflags: Superblock update failed!");
return error;
}
xfs_mod_sb(tp, XFS_SB_QFLAGS);
error = xfs_trans_commit(tp, 0, NULL);
return error;
}
STATIC int
xfs_noquota_init(
xfs_mount_t *mp,
uint *needquotamount,
uint *quotaflags)
{
int error = 0;
*quotaflags = 0;
*needquotamount = B_FALSE;
ASSERT(!XFS_IS_QUOTA_ON(mp));
/*
* If a file system had quotas running earlier, but decided to
* mount without -o uquota/pquota/gquota options, revoke the
* quotachecked license.
*/
if (mp->m_sb.sb_qflags & XFS_ALL_QUOTA_ACCT) {
cmn_err(CE_NOTE,
"XFS resetting qflags for filesystem %s",
mp->m_fsname);
error = xfs_mount_reset_sbqflags(mp);
}
return error;
}
xfs_qmops_t xfs_qmcore_stub = {
.xfs_qminit = (xfs_qminit_t) fs_noerr,
.xfs_qminit = (xfs_qminit_t) xfs_noquota_init,
.xfs_qmdone = (xfs_qmdone_t) fs_noerr,
.xfs_qmmount = (xfs_qmmount_t) fs_noerr,
.xfs_qmunmount = (xfs_qmunmount_t) fs_noerr,