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-rw-r--r--fs/ext2/super.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 71e9eb1..7ff43f4 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -119,6 +119,8 @@ static void ext2_put_super (struct super_block * sb)
int i;
struct ext2_sb_info *sbi = EXT2_SB(sb);
+ dquot_disable(sb, -1, DQUOT_USAGE_ENABLED | DQUOT_LIMITS_ENABLED);
+
if (sb->s_dirt)
ext2_write_super(sb);
@@ -1063,6 +1065,12 @@ static int ext2_fill_super(struct super_block *sb, void *data, int silent)
sb->s_op = &ext2_sops;
sb->s_export_op = &ext2_export_ops;
sb->s_xattr = ext2_xattr_handlers;
+
+#ifdef CONFIG_QUOTA
+ sb->dq_op = &dquot_operations;
+ sb->s_qcop = &dquot_quotactl_ops;
+#endif
+
root = ext2_iget(sb, EXT2_ROOT_INO);
if (IS_ERR(root)) {
ret = PTR_ERR(root);
@@ -1241,6 +1249,7 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
spin_unlock(&sbi->s_lock);
return 0;
}
+
/*
* OK, we are remounting a valid rw partition rdonly, so set
* the rdonly flag and then mark the partition as valid again.
@@ -1248,6 +1257,13 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
es->s_state = cpu_to_le16(sbi->s_mount_state);
es->s_mtime = cpu_to_le32(get_seconds());
spin_unlock(&sbi->s_lock);
+
+ err = dquot_suspend(sb, -1);
+ if (err < 0) {
+ spin_lock(&sbi->s_lock);
+ goto restore_opts;
+ }
+
ext2_sync_super(sb, es, 1);
} else {
__le32 ret = EXT2_HAS_RO_COMPAT_FEATURE(sb,
@@ -1269,8 +1285,12 @@ static int ext2_remount (struct super_block * sb, int * flags, char * data)
if (!ext2_setup_super (sb, es, 0))
sb->s_flags &= ~MS_RDONLY;
spin_unlock(&sbi->s_lock);
+
ext2_write_super(sb);
+
+ dquot_resume(sb, -1);
}
+
return 0;
restore_opts:
sbi->s_mount_opt = old_opts.s_mount_opt;
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