#include <linux/mount.h>
#include <linux/namei.h>
#include <linux/quotaops.h>
+#include <linux/seq_file.h>
#include <asm/uaccess.h>
#include "xattr.h"
#include "acl.h"
kfree(rsv);
}
-#ifdef CONFIG_QUOTA
+static int ext3_show_options(struct seq_file *seq, struct vfsmount *vfs)
+{
+ struct ext3_sb_info *sbi = EXT3_SB(vfs->mnt_sb);
+
+ if (sbi->s_mount_opt & EXT3_MOUNT_JOURNAL_DATA)
+ seq_puts(seq, ",data=journal");
+
+ if (sbi->s_mount_opt & EXT3_MOUNT_ORDERED_DATA)
+ seq_puts(seq, ",data=ordered");
+
+ if (sbi->s_mount_opt & EXT3_MOUNT_WRITEBACK_DATA)
+ seq_puts(seq, ",data=writeback");
+
+#if defined(CONFIG_QUOTA)
+ if (sbi->s_jquota_fmt)
+ seq_printf(seq, ",jqfmt=%s",
+ (sbi->s_jquota_fmt == QFMT_VFS_OLD) ? "vfsold": "vfsv0");
+
+ if (sbi->s_qf_names[USRQUOTA])
+ seq_printf(seq, ",usrjquota=%s", sbi->s_qf_names[USRQUOTA]);
+
+ if (sbi->s_qf_names[GRPQUOTA])
+ seq_printf(seq, ",grpjquota=%s", sbi->s_qf_names[GRPQUOTA]);
+ if (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA)
+ seq_puts(seq, ",usrquota");
+
+ if (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)
+ seq_puts(seq, ",grpquota");
+#endif
+
+ return 0;
+}
+
+#ifdef CONFIG_QUOTA
#define QTYPE2NAME(t) ((t)==USRQUOTA?"user":"group")
#define QTYPE2MOPT(on, t) ((t)==USRQUOTA?((on)##USRJQUOTA):((on)##GRPJQUOTA))
.statfs = ext3_statfs,
.remount_fs = ext3_remount,
.clear_inode = ext3_clear_inode,
+ .show_options = ext3_show_options,
#ifdef CONFIG_QUOTA
.quota_read = ext3_quota_read,
.quota_write = ext3_quota_write,
Opt_commit, Opt_journal_update, Opt_journal_inum,
Opt_abort, Opt_data_journal, Opt_data_ordered, Opt_data_writeback,
Opt_usrjquota, Opt_grpjquota, Opt_offusrjquota, Opt_offgrpjquota,
- Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0,
- Opt_ignore, Opt_barrier, Opt_err, Opt_resize,
+ Opt_jqfmt_vfsold, Opt_jqfmt_vfsv0, Opt_quota, Opt_noquota,
+ Opt_ignore, Opt_barrier, Opt_err, Opt_resize, Opt_usrquota,
+ Opt_grpquota
};
static match_table_t tokens = {
{Opt_grpjquota, "grpjquota=%s"},
{Opt_jqfmt_vfsold, "jqfmt=vfsold"},
{Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
- {Opt_ignore, "grpquota"},
- {Opt_ignore, "noquota"},
- {Opt_ignore, "quota"},
- {Opt_ignore, "usrquota"},
+ {Opt_grpquota, "grpquota"},
+ {Opt_noquota, "noquota"},
+ {Opt_quota, "quota"},
+ {Opt_usrquota, "usrquota"},
{Opt_barrier, "barrier=%u"},
{Opt_err, NULL},
{Opt_resize, "resize"},
sbi->s_qf_names[qtype] = NULL;
return 0;
}
+ set_opt(sbi->s_mount_opt, QUOTA);
break;
case Opt_offusrjquota:
qtype = USRQUOTA;
"quota turned on.\n");
return 0;
}
- kfree(sbi->s_qf_names[qtype]);
+ /*
+ * The space will be released later when all options
+ * are confirmed to be correct
+ */
sbi->s_qf_names[qtype] = NULL;
break;
case Opt_jqfmt_vfsold:
case Opt_jqfmt_vfsv0:
sbi->s_jquota_fmt = QFMT_VFS_V0;
break;
+ case Opt_quota:
+ case Opt_usrquota:
+ set_opt(sbi->s_mount_opt, QUOTA);
+ set_opt(sbi->s_mount_opt, USRQUOTA);
+ break;
+ case Opt_grpquota:
+ set_opt(sbi->s_mount_opt, QUOTA);
+ set_opt(sbi->s_mount_opt, GRPQUOTA);
+ break;
+ case Opt_noquota:
+ if (sb_any_quota_enabled(sb)) {
+ printk(KERN_ERR "EXT3-fs: Cannot change quota "
+ "options when quota turned on.\n");
+ return 0;
+ }
+ clear_opt(sbi->s_mount_opt, QUOTA);
+ clear_opt(sbi->s_mount_opt, USRQUOTA);
+ clear_opt(sbi->s_mount_opt, GRPQUOTA);
+ break;
#else
+ case Opt_quota:
+ case Opt_usrquota:
+ case Opt_grpquota:
case Opt_usrjquota:
case Opt_grpjquota:
case Opt_offusrjquota:
"EXT3-fs: journalled quota options not "
"supported.\n");
break;
+ case Opt_noquota:
+ break;
#endif
case Opt_abort:
set_opt(sbi->s_mount_opt, ABORT);
case Opt_ignore:
break;
case Opt_resize:
- if (!n_blocks_count) {
+ if (!is_remount) {
printk("EXT3-fs: resize option only available "
"for remount\n");
return 0;
}
- match_int(&args[0], &option);
+ if (match_int(&args[0], &option) != 0)
+ return 0;
*n_blocks_count = option;
break;
case Opt_nobh:
}
}
#ifdef CONFIG_QUOTA
- if (!sbi->s_jquota_fmt && (sbi->s_qf_names[USRQUOTA] ||
- sbi->s_qf_names[GRPQUOTA])) {
- printk(KERN_ERR
- "EXT3-fs: journalled quota format not specified.\n");
- return 0;
+ if (sbi->s_qf_names[USRQUOTA] || sbi->s_qf_names[GRPQUOTA]) {
+ if ((sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA) &&
+ sbi->s_qf_names[USRQUOTA])
+ clear_opt(sbi->s_mount_opt, USRQUOTA);
+
+ if ((sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA) &&
+ sbi->s_qf_names[GRPQUOTA])
+ clear_opt(sbi->s_mount_opt, GRPQUOTA);
+
+ if ((sbi->s_qf_names[USRQUOTA] &&
+ (sbi->s_mount_opt & EXT3_MOUNT_GRPQUOTA)) ||
+ (sbi->s_qf_names[GRPQUOTA] &&
+ (sbi->s_mount_opt & EXT3_MOUNT_USRQUOTA))) {
+ printk(KERN_ERR "EXT3-fs: old and new quota "
+ "format mixing.\n");
+ return 0;
+ }
+
+ if (!sbi->s_jquota_fmt) {
+ printk(KERN_ERR "EXT3-fs: journalled quota format "
+ "not specified.\n");
+ return 0;
+ }
+ } else {
+ if (sbi->s_jquota_fmt) {
+ printk(KERN_ERR "EXT3-fs: journalled quota format "
+ "specified with no journalling "
+ "enabled.\n");
+ return 0;
+ }
}
#endif
-
return 1;
}
{
struct ext3_super_block * es;
struct ext3_sb_info *sbi = EXT3_SB(sb);
- unsigned long tmp;
unsigned long n_blocks_count = 0;
+ unsigned long old_sb_flags;
+ struct ext3_mount_options old_opts;
+ int err;
+#ifdef CONFIG_QUOTA
+ int i;
+#endif
+
+ /* Store the original options */
+ old_sb_flags = sb->s_flags;
+ old_opts.s_mount_opt = sbi->s_mount_opt;
+ old_opts.s_resuid = sbi->s_resuid;
+ old_opts.s_resgid = sbi->s_resgid;
+ old_opts.s_commit_interval = sbi->s_commit_interval;
+#ifdef CONFIG_QUOTA
+ old_opts.s_jquota_fmt = sbi->s_jquota_fmt;
+ for (i = 0; i < MAXQUOTAS; i++)
+ old_opts.s_qf_names[i] = sbi->s_qf_names[i];
+#endif
/*
* Allow the "check" option to be passed as a remount option.
*/
- if (!parse_options(data, sb, &tmp, &n_blocks_count, 1))
- return -EINVAL;
+ if (!parse_options(data, sb, NULL, &n_blocks_count, 1)) {
+ err = -EINVAL;
+ goto restore_opts;
+ }
if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
ext3_abort(sb, __FUNCTION__, "Abort forced by user");
if ((*flags & MS_RDONLY) != (sb->s_flags & MS_RDONLY) ||
n_blocks_count > le32_to_cpu(es->s_blocks_count)) {
- if (sbi->s_mount_opt & EXT3_MOUNT_ABORT)
- return -EROFS;
+ if (sbi->s_mount_opt & EXT3_MOUNT_ABORT) {
+ err = -EROFS;
+ goto restore_opts;
+ }
if (*flags & MS_RDONLY) {
/*
"remount RDWR because of unsupported "
"optional features (%x).\n",
sb->s_id, le32_to_cpu(ret));
- return -EROFS;
+ err = -EROFS;
+ goto restore_opts;
}
/*
* Mounting a RDONLY partition read-write, so reread
*/
ext3_clear_journal_err(sb, es);
sbi->s_mount_state = le16_to_cpu(es->s_state);
- if ((ret = ext3_group_extend(sb, es, n_blocks_count)))
- return ret;
+ if ((ret = ext3_group_extend(sb, es, n_blocks_count))) {
+ err = ret;
+ goto restore_opts;
+ }
if (!ext3_setup_super (sb, es, 0))
sb->s_flags &= ~MS_RDONLY;
}
}
+#ifdef CONFIG_QUOTA
+ /* Release old quota file names */
+ for (i = 0; i < MAXQUOTAS; i++)
+ if (old_opts.s_qf_names[i] &&
+ old_opts.s_qf_names[i] != sbi->s_qf_names[i])
+ kfree(old_opts.s_qf_names[i]);
+#endif
return 0;
+restore_opts:
+ sb->s_flags = old_sb_flags;
+ sbi->s_mount_opt = old_opts.s_mount_opt;
+ sbi->s_resuid = old_opts.s_resuid;
+ sbi->s_resgid = old_opts.s_resgid;
+ sbi->s_commit_interval = old_opts.s_commit_interval;
+#ifdef CONFIG_QUOTA
+ sbi->s_jquota_fmt = old_opts.s_jquota_fmt;
+ for (i = 0; i < MAXQUOTAS; i++) {
+ if (sbi->s_qf_names[i] &&
+ old_opts.s_qf_names[i] != sbi->s_qf_names[i])
+ kfree(sbi->s_qf_names[i]);
+ sbi->s_qf_names[i] = old_opts.s_qf_names[i];
+ }
+#endif
+ return err;
}
static int ext3_statfs (struct super_block * sb, struct kstatfs * buf)
int ret, err;
/* We may create quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS);
+ handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_initialize(inode, type);
int ret, err;
/* We may delete quota structure so we need to reserve enough blocks */
- handle = ext3_journal_start(inode, 2*EXT3_QUOTA_INIT_BLOCKS);
+ handle = ext3_journal_start(inode, 2*EXT3_QUOTA_DEL_BLOCKS(inode->i_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_drop(inode);
inode = dquot_to_inode(dquot);
handle = ext3_journal_start(inode,
- EXT3_QUOTA_TRANS_BLOCKS);
+ EXT3_QUOTA_TRANS_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_commit(dquot);
handle_t *handle;
handle = ext3_journal_start(dquot_to_inode(dquot),
- EXT3_QUOTA_INIT_BLOCKS);
+ EXT3_QUOTA_INIT_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_acquire(dquot);
handle_t *handle;
handle = ext3_journal_start(dquot_to_inode(dquot),
- EXT3_QUOTA_INIT_BLOCKS);
+ EXT3_QUOTA_DEL_BLOCKS(dquot->dq_sb));
if (IS_ERR(handle))
return PTR_ERR(handle);
ret = dquot_release(dquot);
int err;
struct nameidata nd;
+ if (!test_opt(sb, QUOTA))
+ return -EINVAL;
/* Not journalling quota? */
if (!EXT3_SB(sb)->s_qf_names[USRQUOTA] &&
!EXT3_SB(sb)->s_qf_names[GRPQUOTA])